Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5355633 | Method of grinding a workpiece having plural cylindrical portions with plural grinding wheels | Toshio Ishikawa, Masahiko Yokoi, Shozo Kobayashi, Hisashi Kubota | 1994-10-18 |
| 5110442 | Reinforced electrolyte function elements | Takao Kojima, Hiroyuki Ishiguro, Tetsusyo Yamada | 1992-05-05 |
| 4806739 | Plate-like ceramic heater | Takao Kojima, Hiroyuki Ishiguro, Tetsusyo Yamada | 1989-02-21 |