Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6730241 | Polymerizable composition showing liquid-crystal phase and optically anisotropic object made with the same | Seungtaeg Lee, Hiroshi Hasebe, Tatsuo Kawara | 2004-05-04 |
| 6169186 | Bismaleimides comprising mesogenic groups | Masaru Imai, Rainer B. Frings, Gerwald Grahe, Joji Kawamura | 2001-01-02 |
| 5766833 | Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor | Kiyoshi Suematsu, Hiroaki Muratake, Haruhiko Kaji, Yasuhiko Kojima, Yasuo Shigemitsu | 1998-06-16 |
| 5683854 | Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor | Kiyoshi Suematsu, Hiroaki Muratake, Haruhiko Kaji, Yasuhiko Kojima, Yasuo Shigemitsu | 1997-11-04 |
| 5460919 | Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor | Yasuhiko Kojima, Yasuo Shigemitsu, Jun Takeuchi, Kiyoshi Suematsu | 1995-10-24 |
| 5372911 | Process of forming super high-contrast negative images and silver halide photographic material and developer being used therefor | Yasuhiko Kojima, Yasuo Shigemitsu, Jun Takeuchi, Kiyoshi Suematsu | 1994-12-13 |
| 5362621 | Direct positive silver halide photographic material and method for forming high contrast positive image using the same | Kiyoshi Suematsu, Yasuhiko Kojima, Masatoshi Katayama, Yasuo Shigemitsu | 1994-11-08 |
| 5284733 | High-contrast image forming process | Yasuhiko Kojima, Yasuo Shigemitsu, Kiyoshi Suematsu | 1994-02-08 |
| 5217842 | Superhigh contrast negative image forming process | Yasuhiko Kojima, Yasuo Shigemitsu | 1993-06-08 |
| 4724196 | Silver halide photographic lith material | Tadao Shoji, Yonosuke Tsuka, Yasuhiko Kojima, Yasuo Shigemitsu | 1988-02-09 |