Spinning the founding trade back out of Toyota Motor as Minsei Boseki (1950)
A founding trade carved out by statute
What drove this separation was not a manager’s design but a deadline written into law — the ending of wartime indemnity payments. Without the framework of the corporate reconstruction act, the textile division might well have stayed a department of Toyota Motor for some time longer. That three companies — Nippondenso, Aichi Horo and Minsei Boseki — were cut out within a few months of one another shows that the separations of this period were less a considered judgement about each business’s prospects than a reshuffling dictated by the design of a loss settlement. The shape of the Toyota group’s parts companies owes a great deal to lines drawn inside a statutory time limit.
What is interesting is how differently the carved-out companies then fared. Aichi Horo was dissolved in November 1951; Nippondenso grew into a specialist in automotive electrical equipment; Minsei Boseki returned to spinning and weaving and then, in 1972, reached across into car parts. The founding trade Toyoda Sakichi started in 1918 lost its legal existence inside a car company, was pushed back outside it for administrative convenience, and from there made itself into an auto-parts company under its own power. The present name, Toyota Boshoku, is also a record of that round trip.
Read the full dossier in Japanese →
The Japanese edition carries the complete record of this decision — the situation that forced it, the options weighed, what actually followed, and the sources behind every claim.
Other key decisions at Toyota Boshoku
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Data API
Toyota Boshoku’s history, financials, executives and
shareholders are published as static JSON — no key, plain GET.
Full specification →
| Method | Endpoint | Returns |
|---|---|---|
| GET | /api/companies.json | All companies |
| GET | /api/3116/manifest.json | Resource index |
| GET | /api/3116/history.json | History overview |
| GET | /api/3116/timeline.json | Chronology |
| GET | /api/decisions.json | All management decisions (index) |
| GET | /api/3116/decisions.json | Management decisions (index) |
| GET | /api/3116/decisions/{slug}.json | One decision (full dossier) |
| GET | /api/3116/executives.json | Executives |
| GET | /api/3116/shareholders.json | Major shareholders |
| GET | /api/3116/financials.json | Financial statements |
| GET | /api/3116/financials-longterm.json | Long-term results |
| GET | /api/3116/segments.json | Business segments |
| GET | /api/3116/regions.json | Sales by region |
| GET | /api/3116/workforce.json | Workforce |