Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4565907 | Ignition distributor for internal combustion engine | Ken Takahashi, Ryutarou Jimbou, Yasuo Matsushita, Seiichi Yamada | 1986-01-21 |
| 4528121 | Electroconductive ceramics | Yasuo Matsushita, Kousuke Nakamura | 1985-07-09 |