Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882253 | Organic laminated photosensitive material of positive charging type | Yoshiaki Kato, Mitsuji Tsujita, Keizo Kimoto, Hirotsugu Nishikawa, Mika Kawaguchi | 1989-11-21 |
| 4873195 | Block-formed basidiomycete and a method of cultivation for the same | Yoshimasa Kubo, Masao Hondo, Akihiko Asahi | 1989-10-10 |