Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4983193 | Filter and process for the production thereof | Yatsuhiro Tani, Susumu Ohmori | 1991-01-08 |
| 4731135 | Process for making a filter having a continuous density gradient | Yatsuhiro Tani, Susumu Ohmori | 1988-03-15 |
| 4666784 | Magnetic recording medium | Chyuji Inukai, Eizi Chino, Yoshio Tojima, Masanori Nakamura | 1987-05-19 |
| 4505994 | Metal-halogen secondary battery | Masayoshi Shimada, Yasuhiro Iizuka | 1985-03-19 |
| 4500581 | Material for protecting human bodies from harmful or poisonous chemical substance | Takeshi Mitomi, Eiji Yoshimura | 1985-02-19 |