Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5127568 | Lid for sheet feed tractor | Sadao Unuma, Masashi Yamashita | 1992-07-07 |
| 4816049 | Process of surface treating laser glass | Chiemi Hata, Tetsuro Izumitani | 1989-03-28 |