Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7243993 | Tilting mechanism for a chair and a chair having the same | Ryo Igarashi, Naoki Numa, Ken Nakayama | 2007-07-17 |
| 7097249 | Tilting mechanism for a chair and chair having the same | Ryo Igarashi, Naoki Numa, Ken Nakayama | 2006-08-29 |
| 6687106 | Power module | Takeshi Tanaka | 2004-02-03 |
| 6626497 | Backrest of a chair | Satoshi Nagamitsu | 2003-09-30 |
| 6535406 | Three-level inverter controller reducing commutation loop inductance | Takeaki Asaeda | 2003-03-18 |
| 6257665 | Chair | Satoshi Nagamitsu | 2001-07-10 |