Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6273247 | Storing case with engaging pawl | Kaku Hanazawa, Hashira Ryo | 2001-08-14 |
| D443436 | Case for a cartridge having stored information | Kaku Hanazawa, Hashira Ryo | 2001-06-12 |
| 6104154 | Tricycle with electric motor | Ryoji Iwakiri, Ichiro Kagawa | 2000-08-15 |