Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879204 | Silver halide photographic element containing anhydazine compound and specific dyes | Kunio Ishigaki, Yuji Mihara, Keiichi Adachi, Shigeru Ohno, Masahiro Okada +1 more | 1989-11-07 |
| 4847180 | Silver halide photographic material capable of being handled in a bright room during steps of photomechanical process | Junji Miyata, Ken-ichi Kuwabara, Yoshio Inagaki, Shigeo Hirano | 1989-07-11 |
| 4830950 | Silver halide photographic material | Kenichi Kuwabara, Keiichi Adachi, Masahiro Okada | 1989-05-16 |
| 4818659 | Silver halide photographic materials for photochemical process which can be used in a bright room | Ken-ichi Kuwabara, Kimitaka Kameoka, Masahiro Okada | 1989-04-04 |
| 4803149 | Silver halide photographic materials | Ken-ichi Kuwabara, Masahiro Okada | 1989-02-07 |