Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679507 | Method for chemically sensitizing silver halide photographic emulsion | Tetsuya Yoshida, Haruhiko Masutomi, Yusuke Kawahara, Hiroshi Kashiwagi | 1997-10-21 |
| 5605790 | Method of producing a silver halide photographic emulsion | Yumiko Nimura, Chikao Mamiya, Haruhiko Masutomi | 1997-02-25 |