Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6280890 | Color filter and color liquid crystal display device | Masashi Sawamura, Kenichi Fujita, Takao Taguchi, Eriko Nagata | 2001-08-28 |
| 5232634 | Color filter for multi-color liquid-crystal display panel and process of fabricating such color filters | Toyoaki Sawada, Hisao Hoshi, Hiroki Endo, Mizuhiro Tani, Makoto SAKAGAWA +1 more | 1993-08-03 |
| 4434223 | Image-forming element having an aluminum layer on a transparent film base | Takeo Kohira, Takao Taguchi, Takatoshi Ohta | 1984-02-28 |
| 4433043 | Water based photosensitive composition with hydrolyzate of mammal collagen | Yoshikatu Sawada, Kazuo Shirakawa | 1984-02-21 |
| 4419438 | Image forming material and method | Kuniomi Etoh, Toshikiyo Tanaka, Yoshio Katoh, Yoshiyasu Itoh, Takeo Kohira | 1983-12-06 |
| 4325981 | Method of preventing color accurate reproductions using color photocopiers and the like | Keiji Miyajima, Hideo Nagatomo, Kiyoshi Masui | 1982-04-20 |
| 4277514 | Forgery resistant document with colored areas and method for thwarting reproduction of same | Keiji Miyajima, Hideo Nagatomo, Kiyoshi Masui | 1981-07-07 |
| 4270449 | Method of printing plastic surfaces | Yoshiyashu Ito, Yoshikatsu Sawada | 1981-06-02 |