Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8998322 | Reaction force mechanism for backrest of chair and chair mounted with the same | Kazuyuki Ito | 2015-04-07 |
| D665591 | Chair | Kenji Tanaka, Isao Okamoto | 2012-08-21 |
| D662330 | Chair | Kenji Tanaka, Isao Okamoto | 2012-06-26 |
| D661117 | Chair | Kenji Tanaka, Masashi Kaneko | 2012-06-05 |
| D597329 | Chair | Kenji Tanaka, Masato Kasuga | 2009-08-04 |
| 7434879 | Structure for attaching spring | Nobuyuki Ueda, Takeru Tonouchi | 2008-10-14 |
| 7134722 | Chair | Nobuyuki Ueda, Yojiro Kinoshita, Toru Aoyagi | 2006-11-14 |
| 6945605 | Chair having a slide mechanism for the seat | Yojiro Kinoshita, Nobuyuki Ueda, Kazuyuki Itoh, Hiroyuki Nishimura | 2005-09-20 |
| 6935689 | Chair | Nobuyuki Ueda | 2005-08-30 |
| 6811215 | Structure for mounting backrest | Nobuyuki Ueda | 2004-11-02 |
| 6739664 | Chair | Yojiro Kinoshita, Nobuyuki Ueda, Kazuyuki Itoh | 2004-05-25 |