Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D453199 | Robot toy | Kunihito Sawai, Tatsuzo Ishida, Yuichi Hattori, Naoto Mori | 2002-01-29 |
| 4696513 | Chucking device for machine tools | Akira Nobukawa, Tatsue Sawaguchi | 1987-09-29 |
| 4217674 | Upright vacuum cleaner | Seizo Hayashi, Shinya Tsutsumi | 1980-08-19 |