Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338099 | Shell structure for use with a chair having synchronously moving seat and seat back | Yuji Ishi, Toru Nagao | 1994-08-16 |
| 5314240 | Shell structure for use with a chair having synchronously moving seat and seat back | Yuji Ishi, Toru Nagao | 1994-05-24 |