Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4370396 | Process for producing color filter plates | Kenji Matsumoto, Shunichi Naito | 1983-01-25 |
| 4370025 | Multicolor optical filter with a united interference filter and dye filter and process for making the same | Kenji Matsumoto, Kazuhisa Seki | 1983-01-25 |
| 4362807 | Photomask-forming photographic material and method for producing photomask using same | — | 1982-12-07 |
| 4342818 | Process for forming color filter | Yukio Yokota, Kenji Matsumoto | 1982-08-03 |
| 4336316 | Image forming method | — | 1982-06-22 |
| 4297436 | Method for producing a multilayer printing plate | Kikuo Kubotera, Akira Kashiwabara, Kotaro Sato | 1981-10-27 |
| 4284713 | Image forming method | Itsuo Fujii | 1981-08-18 |
| 4271246 | Method for producing a multicolor optical filter | Kenji Matsumoto | 1981-06-02 |
| 4259433 | Method for producing disk-recording plates | Yuzo Mizobuchi, Tsunehiko Takahashi | 1981-03-31 |
| 4246328 | Process of forming mask images | Itsuo Fujii, Toshikazu Sato | 1981-01-20 |
| 4242438 | Photomask material | — | 1980-12-30 |
| 4207105 | Plasma-etching image in exposed AgX emulsion | — | 1980-06-10 |
| 4188215 | Photosensitive printing plate, method of preparing same, and method of processing same | Sadaharu Ikeda, Tomoaki Ikeda | 1980-02-12 |
| 4183818 | Color electrophotographic liquid developer of colored particles and zinc oxide | Hajime Miyazuka | 1980-01-15 |