Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6893890 | Method of producing a light-emitting diode | Akira Takekuma | 2005-05-17 |
| 6828070 | Photosensitive material comprising reversibly decolorable colored layer and image-forming method using same | Yoshiharu Yabuki | 2004-12-07 |
| 6617617 | Light-emitting diode | Akira Takekuma | 2003-09-09 |
| 5407890 | Decoloring type heat sensitive image recording material | — | 1995-04-18 |
| 5254428 | Process for preparation of light-sensitive microcapsule | Hideo Nagano | 1993-10-19 |
| 5227274 | Process for preparation of light-sensitive material containing microcapsules | Taku Nakamura | 1993-07-13 |
| 4977057 | Image-forming method using silver halide and polymerizable compound | Koichi Nakamura | 1990-12-11 |
| 4963458 | Image forming method and material using photopolymerizable composition | Fumiaki Shinozaki | 1990-10-16 |
| 4954417 | Light-sensitive microcapsule containing polymerizable compound and silver halide, and light-sensitive material employing the same | Taku Nakamura, Tsumoru Hirano, Eiji Funatsu | 1990-09-04 |
| 4888265 | Light-sensitive microcapsule containing polymerizable compound and silver halide, and light-sensitive material employing the same wherein the silver halide is embedded in the shell wall comprised of polyurea or polyurethane | Fujio Kakimi | 1989-12-19 |
| 4880721 | Light-sensitive dual-walled microcapsule containing polymerizable compound and silver halide, and light-sensitive material employing the same | — | 1989-11-14 |
| 4853524 | Optical identification card system | Masami Yamaguchi, Hideo Tamura, Hirokazu Tanaka, Tomio Nakaya, Kiyomitsu Ishikawa | 1989-08-01 |
| 4842978 | Process for preparation of light-sensitive microcapsules containing silver halide and polymerizable compound | — | 1989-06-27 |
| 4835272 | Process for formation of base and light-sensitive material | Kozo Sato, Ken Kawata | 1989-05-30 |
| 4764451 | Image-forming method employing light-sensitive material containing silver halide, reducing agent, polymerizable compound and a photopolymerization initiator | — | 1988-08-16 |