Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874890 | Process for the production of deuterated methyl acrylate or deuterated methyl methacrylate | Masaaki Kato, Masao Kobayashi, Naoto Osuga | 1989-10-17 |
| 4851870 | Shutter apparatus for camera | Yoshihiro Tanaka, Sadafusa Tsuji, Hiroshi Ootsuka, Shinichi Yokoyama, Takeshi Hashimoto +1 more | 1989-07-25 |