Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10381818 | Covering processing tool and covering processing method | — | 2019-08-13 |
| 7701648 | Fresnel lens | Takashi Amano | 2010-04-20 |
| 5589667 | Removable core for pre-stretched tube | Tomio Tsukazaki | 1996-12-31 |