Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875444 | Swirl chamber for diesel engines and the like | Hirofumi Tsuchida, Toshiaki Tanaka, Sumio Hirao | 1989-10-24 |
| 4396571 | Method of preparing resin coated foundry sand using unsaturated polyester | Koue Ohkawa, Kazumi Tanaka, Isao Suyama | 1983-08-02 |
| 4353854 | Method of producing large-sized ceramic honeycomb structure body by integration of small unit blocks | Shin-ichiro Fujii, Nobuhiko Okoshi, Satoshi Ambe, Shigeyoshi Nakagawa | 1982-10-12 |