Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4978583 | Patterned metal plate and production thereof | Takeo Ohnishi, Yuji Shimoyama, Hideo Kuguminato, Fumio Kosumi, Tadaaki Yasumi +3 more | 1990-12-18 |
| 4783378 | Steel sheets for drawing and ironing worked cans | Takeo Ohnishi, Yuji Shimoyama, Toshio Akizuki | 1988-11-08 |