Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5123512 | Automatic wear adjustment multiple-disk clutch apparatus | Keiji Nemoto, Kiyokazu Okubo, Sunao Ishihara, Takahito Takekawa | 1992-06-23 |
| 4969369 | Multi-stage gear shift transmission | Kiyokazu Okubo, Hiroshi Takagishi, Kazumasa Shibuya, Makoto Sumi | 1990-11-13 |