Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350758 | Photographic emulsion containing copper halide host crystals | Takeo Koitabashi, Toshifumi Iijima, Tetsuya Harada | 1982-09-21 |
| 4349622 | Photographic silver halide emulsion comprising epitaxial composite silver halide crystals, silver iodobromide emulsion and process for preparing the same | Takeo Koitabashi, Tashifumi Iijima | 1982-09-14 |