1967
Strategic Decision
Yasuhiko Shogaki Opened a Restaurant as a Sole Proprietor
A Science-Trained Founder's Price Theory: 'Halve the Price and Customers Will Come'
1977
Strategic Decision
Expanded to Multiple Stores while Strengthening Procurement
The Consolidated Procurement Structure Born from Italian Cuisine Specialization
1991
Strategic Decision
Began Full-Scale Nationwide Multi-Store Expansion
A Store-Opening Strategy that Selected Locations Based on the Mathematics of 20% Investment Return
1992
Changed Company Name to Saizeriya Co., Ltd.
1992Changed Company Name to Saizeriya Co., Ltd.
1995
Strategic Decision
Shifted to a Policy of Minimal Advertising
How a TV Feature Failure Gave Birth to the 0.3% Advertising Spend Policy
1997
Constructed the Yoshikawa Factory in Saitama Prefecture; Relocated Headquarters There
1997Constructed the Yoshikawa Factory in Saitama Prefecture; Relocated Headquarters There
1998
Registered Shares for Over-the-Counter Trading
1998Registered Shares for Over-the-Counter Trading
2000
Developed an Overseas Ingredient Procurement Network
2000Developed an Overseas Ingredient Procurement Network
2003
Began Full-Scale Expansion into China
2003Began Full-Scale Expansion into China
2013
Developed New Restaurant Formats (Later Decided to Withdraw)
2013Developed New Restaurant Formats (Later Decided to Withdraw)
2020
Fell into Net Loss
2020Fell into Net Loss
2023
Record-High Revenue but Downward Profit Revision
2023Record-High Revenue but Downward Profit Revision
View Performance
RevenueSaizeriya:Revenue
Non-consol. | Consolidated (Unit: ¥100M)
¥183B
Revenue:2023/8
ProfitSaizeriya:Net Profit Margin
Non-consol. | Consolidated (Unit: %)
2.8%
Margin:2023/8
View Performance
PeriodTypeRevenueProfit*Margin
1976/8Non-consol. Revenue / Net Income---
1977/8Non-consol. Revenue / Net Income---
1978/8Non-consol. Revenue / Net Income---
1979/8Non-consol. Revenue / Net Income---
1980/8Non-consol. Revenue / Net Income---
1981/8Non-consol. Revenue / Net Income---
1982/8Non-consol. Revenue / Net Income---
1983/8Non-consol. Revenue / Net Income---
1984/8Non-consol. Revenue / Net Income---
1985/8Non-consol. Revenue / Net Income---
1986/8Non-consol. Revenue / Net Income---
1987/8Non-consol. Revenue / Net Income---
1988/8Non-consol. Revenue / Net Income---
1989/8Non-consol. Revenue / Net Income¥3B--
1990/8Non-consol. Revenue / Net Income¥4B--
1991/8Non-consol. Revenue / Net Income¥5B--
1992/8Non-consol. Revenue / Net Income¥7B--
1993/8Non-consol. Revenue / Net Income¥10B--
1994/8Non-consol. Revenue / Net Income¥14B¥1B6.0%
1995/8Non-consol. Revenue / Net Income¥15B¥1B5.6%
1996/8Non-consol. Revenue / Net Income¥16B¥1B3.8%
1997/8Non-consol. Revenue / Net Income¥19B¥1B4.7%
1998/8Non-consol. Revenue / Net Income¥24B¥1B5.1%
1999/8Non-consol. Revenue / Net Income---
2000/8Non-consol. Revenue / Net Income---
2001/8Non-consol. Revenue / Net Income¥52B¥5B8.9%
2002/8Consolidated Revenue / Net Income¥62B¥6B8.9%
2003/8Consolidated Revenue / Net Income¥65B¥2B3.4%
2004/8Consolidated Revenue / Net Income¥73B¥3B3.4%
2005/8Consolidated Revenue / Net Income¥75B¥2B3.2%
2006/8Consolidated Revenue / Net Income¥79B¥4B4.5%
2007/8Consolidated Revenue / Net Income¥83B¥4B5.3%
2008/8Consolidated Revenue / Net Income¥85B¥4B4.7%
2009/8Consolidated Revenue / Net Income¥88B-¥5B-5.6%
2010/8Consolidated Revenue / Net Income¥99B¥8B7.8%
2011/8Consolidated Revenue / Net Income¥100B¥6B5.8%
2012/8Consolidated Revenue / Net Income¥104B¥5B5.2%
2013/8Consolidated Revenue / Net Income¥110B¥4B3.5%
2014/8Consolidated Revenue / Net Income¥126B¥1B0.9%
2015/8Consolidated Revenue / Net Income¥139B¥4B2.7%
2016/8Consolidated Revenue / Net Income¥145B¥6B3.7%
2017/8Consolidated Revenue / Net Income¥148B¥7B5.0%
2018/8Consolidated Revenue / Net Income¥154B¥5B3.2%
2019/8Consolidated Revenue / Net Income¥157B¥5B3.1%
2020/8Consolidated Revenue / Net Income¥127B-¥3B-2.8%
2021/8Consolidated Revenue / Net Income¥127B¥2B1.3%
2022/8Consolidated Revenue / Net Income¥144B¥6B3.9%
2023/8Consolidated Revenue / Net Income¥183B¥5B2.8%
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1967
7

Yasuhiko Shogaki Opened a Restaurant as a Sole Proprietor

A Science-Trained Founder's Price Theory: 'Halve the Price and Customers Will Come'

Yasuhiko Shogaki declared that 80–90% of deliciousness is determined by ingredients and established a policy during the founding period of investing in ingredient procurement rather than chefs' skills. After five years of losses, he took the plunge to halve all menu prices, rejecting the restaurant industry's conventional emphasis on location. His reasoning—deriving the appropriate food price from the price of Weekly Shonen Jump—is unique, but in practice, Saizeriya's cost structure and price range have been designed in accordance with this theory.

BackgroundHow a Science Student Abandoned a Research Career and Chose the Restaurant Business

Saizeriya's founder Yasuhiko Shogaki was enrolled in the physics department at Tokyo University of Science and initially aspired to become a researcher. However, through thesis research at a national research institute, he realized he lacked passion for an academic career and concluded that a food business would be the most suitable choice for starting a venture from scratch. In July 1967, he opened a restaurant as a sole proprietor in Motoyawata, Chiba Prefecture, but the following year a fight between yakuza gangs broke out in the establishment, and the shop was completely destroyed by fire when a kerosene heater was thrown.

Using the fire as an opportunity, in May 1968 Shogaki opened 'Saizeriya' Store No. 1, an Italian restaurant, in the same Motoyawata location. At the time, Western cuisine was still in the early stages of penetration in Japan, and there were no authentic Italian restaurant chains. Shogaki chose Italian cuisine based on the hypothesis that as long as the ingredients were good, the dish would be less dependent on the chef's skill. His belief was that 80–90% of deliciousness is determined by ingredients, 5–10% by temperature and humidity control, and only 5–10% by cooking technique.

However, in the 1970s, the yen was weak at around 300 yen to the dollar, making imported Italian ingredients expensive. The procurement cost of core ingredients—dairy products, cheese, tomatoes, olive oil, and wine—became a bottleneck. Conversely, the weak yen functioned as a barrier to entry, suppressing the emergence of competitors.

DecisionA 'Last Gamble' of Halving All Menu Prices Became the Turning Point

For the first five years after opening, Saizeriya struggled to attract customers. Operating a 30-square-meter restaurant on the second floor of a produce shop—a location easy to overlook—daily sales remained around 30,000 yen. After deducting rent, the effective salary for the Shogaki brothers was essentially zero, and it is estimated that continuing operations would have been impossible without financial support from the family, which had a medical background.

Around 1975, Shogaki made a last-resort gamble by halving all menu prices. Offering spaghetti at 200–300 yen was an extraordinarily low price point for the time. According to Shogaki, the threshold at which people perceive something as 'cheap' is half the market rate, and the price of food that is consumed and disappears is determined at twice the price of a magazine—an 'empirical rule.' Weekly Shonen Jump cost 190 yen, and twice that was 380 yen, which matched Saizeriya's price range.

The price halving turned Saizeriya into a popular establishment. From this experience, the management policy was established: disregard 'location,' which is conventionally prioritized in the restaurant industry, and offer food at half the market rate while investing in ingredient costs. The business was incorporated as Mariannu Shokai Co., Ltd. in 1973 with capital of 10 million yen, laying the foundation for chain expansion.

ResultThe Prototype of Saizeriya: Poor Locations, Low Prices, and Ingredient-First

The principles Shogaki established during the founding period can be summarized in three points. First, a poor-location strategy that avoids prime sites to minimize store opening costs. Second, low pricing benchmarked at half the market rate. Third, a cost allocation design that invests in ingredient quality rather than chefs' skills. As a science-trained founder 'scientifically decomposed' what makes food delicious, a business model emerged that placed ingredient procurement as the source of competitive advantage.

Specializing in Italian cuisine offered the structural advantage of enabling consolidated purchasing. Unlike typical family restaurants that offer diverse menus causing ingredient categories to be dispersed, focusing on Italian cuisine allowed bulk procurement of common ingredients such as cheese, tomatoes, and olive oil. This procurement structure would later evolve into direct imports from overseas and the establishment of the company's own factory in Australia.

By the late 1970s, multi-store expansion using a dominant area strategy began, but the entire foundation had been formed during the first decade since founding. It was a business model born from a science-minded founder's deconstruction and reconstruction of restaurant industry conventions.

A Science-Trained Founder's Price Theory: 'Halve the Price and Customers Will Come'

Yasuhiko Shogaki declared that 80–90% of deliciousness is determined by ingredients and established a policy during the founding period of investing in ingredient procurement rather than chefs' skills. After five years of losses, he took the plunge to halve all menu prices, rejecting the restaurant industry's conventional emphasis on location. His reasoning—deriving the appropriate food price from the price of Weekly Shonen Jump—is unique, but in practice, Saizeriya's cost structure and price range have been designed in accordance with this theory.

TimelineYasuhiko Shogaki Opened a Restaurant as a Sole Proprietor — Key Events
7/1967Opened a restaurant as a sole proprietor in Motoyawata, Chiba Prefecture
4/1968Store No. 1 destroyed by fire during a fight between organized crime groups
5/1968Opened Saizeriya Store No. 1 (Motoyawata)
5/1973Established Mariannu Shokai Co., Ltd.
Capital0.1hundred million yen
1975Opened an Italian restaurant (Ichikawa Kitaguchi store)
1977
12

Expanded to Multiple Stores while Strengthening Procurement

The Consolidated Procurement Structure Born from Italian Cuisine Specialization

Behind Saizeriya's 12 years of dominant-area expansion in the Tokyo metropolitan area was the founding-era policy of building awareness through word of mouth without relying on advertising. At the same time, specialization in Italian cuisine enabled bulk procurement of common ingredients such as cheese, tomatoes, and olive oil, forming a procurement structure distinct from typical family restaurants with diverse menus. The yen's appreciation during the 1980s provided a tailwind for this structure, and the cost advantage of imported ingredients widened—a factor that should not be overlooked.

BackgroundA Careful Store Opening Design that Built Awareness through Dominant-Area Expansion in the Tokyo Metropolitan Area

In December 1977, Saizeriya opened the 'Ichikawa Kitaguchi' store in Chiba Prefecture, marking the start of multi-store expansion. However, the company did not pursue nationwide expansion, instead adopting a dominant-area strategy limited to the Tokyo metropolitan area where demand was strongest. In May 1979, it opened its first Tokyo store (Koiwa Kuramae), in April 1981 its first shopping center location (Funabashi LaLaport), and by November 1988 had built a 20-store network. The policy of concentrating in specific areas and building awareness through word of mouth rather than relying on advertising was rooted in the founding-period experience.

In October 1987, the company developed its own order entry system and began standardizing store operations. In 1989, it started opening roadside locations (Kashiwa Mito Kaido store) and suburban locations (Jusco Kita-Toda store), broadening its range of site types. The 12 years in the Tokyo metropolitan area served as a preparatory period for Saizeriya to develop the store management know-how and ingredient procurement infrastructure needed for nationwide expansion.

DecisionConsolidation and Industrialization of Ingredient Procurement through Italian Cuisine Specialization

In parallel with multi-store expansion, founder Yasuhiko Shogaki pursued the 'industrialization' of Italian cuisine. Based on the founding-era hypothesis that 80–90% of deliciousness is determined by ingredients, he incrementally built a system for directly importing ingredients from Italy and other countries. Core Italian ingredients—cheese, tomatoes, olive oil, and wine—are limited in variety, enabling bulk procurement.

Typical family restaurants offering diverse menus see ingredient categories dispersed, with individual procurement volumes remaining small. Saizeriya, by specializing in Italian cuisine, converted this structural difference into a purchasing advantage. The yen's appreciation through the 1980s provided a tailwind, and the procurement cost of imported ingredients declined. This ingredient procurement system became the foundation for the later development of the company's own factory in Australia and its own farm in Fukushima.

The Consolidated Procurement Structure Born from Italian Cuisine Specialization

Behind Saizeriya's 12 years of dominant-area expansion in the Tokyo metropolitan area was the founding-era policy of building awareness through word of mouth without relying on advertising. At the same time, specialization in Italian cuisine enabled bulk procurement of common ingredients such as cheese, tomatoes, and olive oil, forming a procurement structure distinct from typical family restaurants with diverse menus. The yen's appreciation during the 1980s provided a tailwind for this structure, and the cost advantage of imported ingredients widened—a factor that should not be overlooked.

TimelineExpanded to Multiple Stores while Strengthening Procurement — Key Events
12/1977Began full-scale multi-store expansion (opened Ichikawa Kitaguchi store)
5/1979First Tokyo store (Koiwa Kuramae store)
4/1981Opened first shopping center location (Funabashi LaLaport)
4/1981Saizeriya surpassed 4 stores
10/1987Developed proprietary order entry system
11/1988Saizeriya surpassed 20 stores
9/1989Opened first roadside location (Kashiwa Mito Kaido store)
12/1989First Saitama Prefecture store (Jusco Kita-Toda store)
1991
5

Began Full-Scale Nationwide Multi-Store Expansion

A Store-Opening Strategy that Selected Locations Based on the Mathematics of 20% Investment Return

What drove Saizeriya's nationwide expansion was a clear numerical benchmark: 20% investment return. The capital structure design of borrowing three times equity and investing the entire amount in store openings mathematically derived annual growth of 130–150%. This benchmark rationalized 'opening stores in poor locations,' and it was connected to the cost allocation design of directing rent savings toward ingredient costs—reflecting the management style of a science-trained founder.

BackgroundA Nationwide Expansion Designed Around the Mathematics of 20% Investment Return

Entering the 1990s, Saizeriya expanded its store openings from the Tokyo metropolitan area to the entire country. In May 1991, it entered Aichi Prefecture (Toyota Sogo store), and in March 1992, Hokkaido and Toyama Prefecture, surpassing 50 stores in June 1992 and 100 stores in July 1994. The store-opening pace was underpinned by founder Yasuhiko Shogaki's benchmark of a 20% investment return. The calculation was: borrow three times the equity from banks, invest the entire amount in store openings, and if an ordinary income margin of 20% is secured, revenue will grow at 130–150% year over year—reaching 200x in 20 years.

Shogaki described this mathematics as 'by no means an impossible figure for a food business.' Selecting locations that could deliver a 20% investment return was the core of the store-opening decision, which inevitably meant not prime locations in front of stations but rather second floors of station buildings or basement levels—places with lower rents. By around 1993, the company was securing an ordinary income margin of 10%, achieving a store-opening speed for an Italian restaurant chain that outpaced all competitors.

DecisionA Management Decision that Mathematically Justified Opening Stores in Poor Locations

Saizeriya's location strategy was an extension of the founding-era empirical rule that 'if you halve the price, customers will come.' Rather than paying prime-location rents, it was more capital-efficient to open stores in poor locations to minimize costs and invest the savings in ingredient costs. In Shogaki's words, 'locations with poor conditions that nobody wants to touch' were precisely the places that could generate an ordinary income of 20% or more on the invested amount.

In May 1995, the company began opening stores in the Kansai region (Rokko Island store), further expanding the geographic range of its nationwide rollout. The combination of suppressed store-opening costs and low-priced menus charted an exceptional growth trajectory in the restaurant industry during the post-bubble period of sluggish consumer spending. The uniqueness as an Italian restaurant chain and the investment criteria assembled by a science-trained founder formed the structure that supported the nationwide expansion.

A Store-Opening Strategy that Selected Locations Based on the Mathematics of 20% Investment Return

What drove Saizeriya's nationwide expansion was a clear numerical benchmark: 20% investment return. The capital structure design of borrowing three times equity and investing the entire amount in store openings mathematically derived annual growth of 130–150%. This benchmark rationalized 'opening stores in poor locations,' and it was connected to the cost allocation design of directing rent savings toward ingredient costs—reflecting the management style of a science-trained founder.

TimelineBegan Full-Scale Nationwide Multi-Store Expansion — Key Events
5/1991First Aichi Prefecture store (Toyota Sogo store)
3/1992First Toyama Prefecture store (Shin-Sapporo store)
3/1992First Hokkaido store (Toyama Ekimae store)
6/1992Saizeriya surpassed 50 stores
7/1994Saizeriya surpassed 100 stores
5/1995Began store openings in the Kansai region (Rokko Island store)
1995

Shifted to a Policy of Minimal Advertising

How a TV Feature Failure Gave Birth to the 0.3% Advertising Spend Policy

The experience of a TV appearance at the 100-store mark causing operational collapse and customer defection decisively changed Saizeriya's stance on advertising. An advertising-to-revenue ratio of 0.3% is extremely low for the restaurant industry, but the cost allocation design of redirecting that amount toward ingredient costs is consistent with the 'invest in ingredients' policy held since founding. The decision to choose quality improvement and word-of-mouth recovery over temporary customer acquisition through advertising was a structural choice made with full awareness of the limits of operational capacity.

BackgroundA TV Feature Caused a Customer Surge and Operational Collapse

In 1994, having reached a 100-store network, Saizeriya was featured on a television program. The next day, long lines formed at stores, but operations could not keep up with the sudden surge in customers, and service quality deteriorated. Complaints flooded in, and once the TV buzz subsided, customer traffic dropped abruptly. The incident exposed a structural problem: a temporary spike in customers exceeding a store's processing capacity could erode the trust of existing customers.

From this experience, Shogaki fundamentally reversed course, rejecting customer acquisition through advertising. The choice was to hold prices steady, improve ingredient quality, and wait for customers to return through word of mouth. Indeed, although the ingredient improvements were never advertised, customer traffic reportedly returned to an upward trend.

DecisionEstablished the Unusual Policy of Spending Only 0.3% of Revenue on Advertising

For the fiscal year ending August 1997, Saizeriya's advertising expenses were just 60 million yen against revenue of 19.4 billion yen—a ratio of 0.3% to revenue. In the restaurant industry, where advertising expense ratios of 1–3% are typical, Saizeriya's 0.3% was an extremely low level. The cost allocation design of redirecting funds not spent on advertising toward ingredient costs was an extension of the 'invest in ingredients' policy that had been consistent since the founding period.

The customer acquisition model that did not rely on advertising functioned throughout the latter half of the 1990s. Customer numbers gradually increased, and revenue continued to expand. In April 1998, Saizeriya registered its shares for over-the-counter trading, listed on TSE Second Section in July 1999, and promoted to TSE First Section in August 2000. The TV feature's failure ultimately became the catalyst for establishing a unique management model that redirected advertising spend toward ingredient costs.

How a TV Feature Failure Gave Birth to the 0.3% Advertising Spend Policy

The experience of a TV appearance at the 100-store mark causing operational collapse and customer defection decisively changed Saizeriya's stance on advertising. An advertising-to-revenue ratio of 0.3% is extremely low for the restaurant industry, but the cost allocation design of redirecting that amount toward ingredient costs is consistent with the 'invest in ingredients' policy held since founding. The decision to choose quality improvement and word-of-mouth recovery over temporary customer acquisition through advertising was a structural choice made with full awareness of the limits of operational capacity.

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