Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880616 | Stable stannous chloride composition for labeling with radioactive technetium | Makoto Azuma, Jun Takahashi, Hirohiko Yamauchi | 1989-11-14 |
| 4875768 | Microfiche reading apparatus | Hideaki Hirasawa | 1989-10-24 |
| 4855353 | High molecular compounds having amino groups, and their utilization | Miki Kurami, Yoshifumi Shirakami, Keietsu Takahashi | 1989-08-08 |
| 4849207 | Porphyrin derivatives | Isao Sakata, Susumu Nakajima, Koichi Koshimizu, Natsuki Samejima, Kazumi Inohara +3 more | 1989-07-18 |
| 4825243 | Film image projecting apparatus for handling a roll film containing a plurality of rows of frames | Masaaki Ito, Masafumi Fujita | 1989-04-25 |