Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5941155 | Hydraulic motor control system | Seigo Arai, Naoki Sugano | 1999-08-24 |
| 5017202 | Gas treating apparatus | Hiromasa Ogata, Koji Morioka | 1991-05-21 |
| 4983193 | Filter and process for the production thereof | Yatsuhiro Tani, Hideki Komagata | 1991-01-08 |
| 4895580 | Gas treating apparatus | Koji Morioka, Hiromasa Ogata | 1990-01-23 |
| 4789504 | Electretized material for a dust filter | Akira Yagi, Satoshi Takase | 1988-12-06 |
| 4731135 | Process for making a filter having a continuous density gradient | Yatsuhiro Tani, Hideki Komagata | 1988-03-15 |
| 4652282 | Electretized material for a dust filter | Akira Yagi, Satoshi Takase | 1987-03-24 |