Issued Patents All Time
Showing 101–125 of 125 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4714323 | Ferroelectric liquid crystal device having chiral smectic and nematic liquid crystal composition | Kazuo Yoshinaga, Shinjiro Okada, Junichiro Kanbe | 1987-12-22 |
| 4712875 | Dimensions of spacer particles for a ferroelectric liquid crystal display | Akira Tsuboyama, Junichiro Kanbe | 1987-12-15 |
| 4693951 | Image forming method and image bearing member | Yoshio Takasu, Yoshihiro Oguchi | 1987-09-15 |
| 4655561 | Method of driving optical modulation device using ferroelectric liquid crystal | Junichiro Kanbe, Syuzo Kaneko | 1987-04-07 |
| 4647521 | Image-holding member having top layer of hydrophobic silica | Yoshihiro Oguchi | 1987-03-03 |
| 4639089 | Liquid crystal device | Shinjiro Okada, Junichiro Kanbe | 1987-01-27 |
| 4629670 | Photoconductive film of azulenium salt and electrophotographic photosensitive member | Yoshihiro Oguchi, Takeshi Ohtake, Kozo Arao, Yoshio Takasu | 1986-12-16 |
| 4579799 | Photoconductive film electrophotographic photosensitive member therewith | Yoshihiro Oguchi, Yoshio Takasu | 1986-04-01 |
| 4565761 | Electrophotographic process utilizing an azulenium salt-containing photosensitive member | Yoshihiro Oguchi, Yoshio Takasu | 1986-01-21 |
| 4555472 | Organic coating film and radiation-sensitive member having the film | Yoshihiro Oguchi | 1985-11-26 |
| 4551404 | Disazo electrophotographic photosensitive member | Masaaki Hiro, Yoshio Takasu, Shozo Ishikawa, Hideyuki Takahashi | 1985-11-05 |
| 4548886 | Radiation sensitive organic thin film comprising an azulenium salt | Yoshihiro Oguchi, Yoshio Takasu | 1985-10-22 |
| 4500619 | Electrophotographic photosensitive member with oxadiazole containing disazo compound | Shozo Ishikawa, Katsunori Watanabe, Kiyoshi Sakai, Makoto Kitahara | 1985-02-19 |
| 4487824 | Electrophotographic photosensitive member containing a halogen substituted hydrazone | Katsunori Watanabe, Kiyoshi Sakai, Shozo Ishikawa, Makoto Kitahara | 1984-12-11 |
| 4481273 | Electrophotographic photosensitive member and preparation thereof | Yoshihiro Oguchi, Yoshio Takasu | 1984-11-06 |
| 4471040 | Electrophotographic disazo photosensitive member | Katsunori Watanabe, Shozo Ishikawa, Makoto Kitahara | 1984-09-11 |
| 4419428 | Electrophotographic light-sensitive media having a dis-azo compound | Shozo Ishikawa, Katsunori Watanabe, Shigeto Ohta, Makoto Kitahara | 1983-12-06 |
| 4418133 | Disazo photoconductive material and electrophotographic photosensitive member having disazo pigment layer | Shoji Umehara, Katsunori Watanabe, Shozo Ishikawa | 1983-11-29 |
| 4413045 | Multilayer electrophotographic photosensitive member comprises disazo charge generator layer, hydrazone transport layer | Shozo Ishikawa, Katsunori Watanabe, Kiyoshi Sakai, Makoto Kitahara | 1983-11-01 |
| 4399206 | Disazo electrophotographic photosensitive member | Katsunori Watanabe, Shozo Ishikawa, Makoto Kitahara | 1983-08-16 |
| 4390611 | Electrophotographic photosensitive azo pigment containing members | Shozo Ishikawa, Katsunori Watanabe, Makoto Kitahara | 1983-06-28 |
| 4359515 | Disazo electrophotographic light-sensitive media | Katsunori Watanabe, Shigeto Ohta, Shozo Ishikawa, Makoto Kitahara | 1982-11-16 |
| 4359513 | Electrophotographic light-sensitive disazo compounds having diphenylacrylonitrile group | Katsunori Watanabe, Shigeto Ohta, Shozo Ishikawa, Makoto Kitahara | 1982-11-16 |
| 4356243 | Electrophotographic media with benzoxazole group containing dis-azo compound | Shozo Ishikawa, Katsunori Watanabe, Shigeto Ohta, Makoto Kitahara | 1982-10-26 |
| 4268595 | Electrostatic recording material and method for the production thereof | Shozo Ishikawa, Shigeto Ohta, Makoto Kitahara | 1981-05-19 |