Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5188916 | Electrophotographic photoreceptor having a zirconium and silicon-containing underlayer | Masahiko Hodumi, Koji Bando, Takahiro Suzuki, Shigeto Hashiba, Sadao Okano +2 more | 1993-02-23 |
| 4919856 | Process for producing membranes for use in gas separation | Takanori Anazawa, Kazuo Hasumi | 1990-04-24 |
| 4664681 | Heterogeneous membrane and process for production thereof | Takanori Anazawa | 1987-05-12 |