Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879204 | Silver halide photographic element containing anhydazine compound and specific dyes | Kunio Ishigaki, Toshiro Takahashi, Yuji Mihara, Keiichi Adachi, Shigeru Ohno +1 more | 1989-11-07 |
| 4820625 | Direct positive silver halide photographic material | Nobuaki Inoue, Toshinao Ukai, Yuji Mihara | 1989-04-11 |