Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6725657 | Power transmission device | Katsumi Kimura, Kazuo Hattori, Hiroshi Ogata, Kazuhiko Sugiyama, Yoshinori Kataya | 2004-04-27 |
| 6062021 | Fluid coupling | Katsumi Kimura, Kazuhiko Sugiyama, Kazuo Hattori, Hiroshi Ogata | 2000-05-16 |
| 5989731 | Composite material and method of manufacturing the same | Yoshifumi Arisawa, Hideki Moriguchi | 1999-11-23 |
| 5889219 | Superhard composite member and method of manufacturing the same | Hideki Moriguchi, Yoshifumi Arisawa | 1999-03-30 |
| 5850897 | Power transmitting apparatus | Katsumi Kimura, Hiroshi Ogata, Kazuo Hattori, Masahiko Ebisui | 1998-12-22 |
| 4947611 | A wall material, and method of preparing a wall material of soils and vegetable materials | — | 1990-08-14 |