Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5132003 | Process for surface treatment of aluminum or aluminum alloy | — | 1992-07-21 |
| 4324815 | Screen-printing mask and method | Kiyoharu Hashimoto, Kenjiro Ninomiya, Tochikiyo Miyazaki, Otokuma Hashimoto, Hideki Mori | 1982-04-13 |
| 4242401 | Screen-printing mask | Kiyoharu Hashimoto, Kenjiro Ninomiya, Toshikiyo Miyazaki, Otokuma Hashimoto, Hideki Mori | 1980-12-30 |