Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10833612 | Electric working machine | Masumi NISHIMURA | 2020-11-10 |
| 5778885 | Force sensation exhibiting device data input device and data input equipment | Yoshiaki Doyama, Masataka Ozeki, Keizo Matsui | 1998-07-14 |
| 5646499 | Inverter control apparatus | Yoshiaki Doyama, Keizo Matsui, Kaneharu Yoshioka, Hideo Ogata, Izumi Yoshida +1 more | 1997-07-08 |
| 5555894 | Force sensation exhibiting device, data input device and data input equipment | Yoshiaki Doyama, Masataka Ozeki, Keizo Matsui | 1996-09-17 |
| 5474789 | Treating method for keeping food fresh | Yasuaki Hayami, Satoru Tajika, Kiyoshi Asanari | 1995-12-12 |
| 5032732 | Radiation image storage panel and process for the preparation of the same | — | 1991-07-16 |
| 4791009 | Process for the preparation of radiation image storage panel | Satoshi Arakawa, Yuichi Hosoi, Hisashi Yamazaki | 1988-12-13 |