Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647313 | Combination of adjusting shim and cam | Hiromu Izumida, Kaoru Murabe, Akira Yamakawa, Kenji Matsunuma | 1997-07-15 |
| 5605494 | Facility for grinding silicon nitride ceramic workpiece | Kenji Matsunuma, Akira Yamakawa | 1997-02-25 |
| 5599493 | Method of producing silicon nitride ceramic component | Yasushi Ito, Takehisa Yamamoto, Akira Yamakawa, Osamu Komura | 1997-02-04 |