Revenue (¥ bn, bars) · net margin (%, line)
Source: securities reports
FY1955 · unconsolidated
Revenue$34M
Net income—
Net margin—
→
FY1967 · unconsolidated
Revenue$261M
Net income$14M
Net margin5.4%
In March 1931 Shojiro Ishibashi spun a tire operation out of his family’s tabi (split-toe work-sock) business and founded Bridgestone Tire in Kurume, Fukuoka, wholly owned by the Ishibashi family — the name an English inversion of Ishibashi, “stone bridge.” He carried the rubber-vulcanizing know-how built up making rubber-soled tabi over to automobile tires and entered at ¥50 a tire, against imports selling for more than ¥100. The low price bred trouble: under a guarantee to swap any defective tire for a new one, people deliberately damaged tires to return them — of 440,000 made in the first three years, 100,000 came back, and losses topped ¥1 million. Reworking the rubber compounding and the vulcanizing process over several years finally lifted quality; in 1932 the tires were certified a superior domestic product, Japan Ford and other makers began fitting them, and a new Kurume plant in 1934 geared up for the rising output of Toyota, Nissan and Japan’s other fledgling carmakers.
From the start Bridgestone pushed exports hard — to China, Southeast Asia and India from 1932 — and when Western tire firms cut prices and, after the 1932 Ottawa conference, walled the goods out with special tariffs of 30 to 60 per cent, the tires were accepted anyway. Between 1937 and 1941 it built plants in Qingdao, Jilin, Keijo (Seoul) and Taiwan, an entry into multinational production barely a decade after founding. The war erased all of it: every overseas plant and the whole export network vanished at defeat, confining the rebuilt company to the home market until the 1988 Firestone acquisition finally turned it into a world firm.
Under Shojiro, Bridgestone stayed unlisted for thirty years, to October 1961 — the family controlling the company while concentrating strictly on tires. It built its own cord plant at Kurume in 1955 for fully integrated production, added a second Kurume plant in 1958 and a Tokyo plant in 1960, and those few plants out-produced the combined output of every plant run by Yokohama Rubber, Toyo Rubber and Sumitomo Rubber — a clear domestic lead. Only in 1961 did it list on the Tokyo and Osaka exchanges and begin funding capacity with outside capital.