Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5589202 | Apparatus for molding polyurethane foam | Hidenobu Okano | 1996-12-31 |
| 5464582 | Method for molding polyurethane foam under subatmospheric pressures | Hidenobu Okano | 1995-11-07 |
| 4716091 | Electrophotographic member with silicone graft copolymer in surface layer | Toshiyuki Yoshihara, Masaaki Hiro | 1987-12-29 |
| 4555069 | Yarn winding apparatus and method | Yoshiyasu Maeda, Akira Ueura, Kazuyoshi Sato | 1985-11-26 |
| 4554231 | Electrophotographic photosensitive member | Shozo Ishikawa, Kiyoshi Sakai, Minoru Mabuchi, Makoto Kitahara | 1985-11-19 |
| 4500619 | Electrophotographic photosensitive member with oxadiazole containing disazo compound | Shozo Ishikawa, Kazuharu Katagiri, Kiyoshi Sakai, Makoto Kitahara | 1985-02-19 |
| 4487824 | Electrophotographic photosensitive member containing a halogen substituted hydrazone | Kazuharu Katagiri, Kiyoshi Sakai, Shozo Ishikawa, Makoto Kitahara | 1984-12-11 |
| 4485159 | Laminate type electrophotographic light-sensitive material | Shigeto Ohta, Kiyoshi Sakai, Shozo Ishikawa, Makoto Kitahara | 1984-11-27 |
| 4471040 | Electrophotographic disazo photosensitive member | Kazuharu Katagiri, Shozo Ishikawa, Makoto Kitahara | 1984-09-11 |
| 4423129 | Electrophotographic member having layer containing methylidenyl hydrazone compound | Yoshio Takasu, Kiyoshi Sakai, Minoru Mabuchi, Shozo Ishikawa | 1983-12-27 |
| 4419428 | Electrophotographic light-sensitive media having a dis-azo compound | Kazuharu Katagiri, Shozo Ishikawa, Shigeto Ohta, Makoto Kitahara | 1983-12-06 |
| 4418133 | Disazo photoconductive material and electrophotographic photosensitive member having disazo pigment layer | Kazuharu Katagiri, Shoji Umehara, Shozo Ishikawa | 1983-11-29 |
| 4413045 | Multilayer electrophotographic photosensitive member comprises disazo charge generator layer, hydrazone transport layer | Shozo Ishikawa, Kazuharu Katagiri, Kiyoshi Sakai, Makoto Kitahara | 1983-11-01 |
| 4399206 | Disazo electrophotographic photosensitive member | Kazuharu Katagiri, Shozo Ishikawa, Makoto Kitahara | 1983-08-16 |
| 4390611 | Electrophotographic photosensitive azo pigment containing members | Shozo Ishikawa, Kazuharu Katagiri, Makoto Kitahara | 1983-06-28 |
| 4359513 | Electrophotographic light-sensitive disazo compounds having diphenylacrylonitrile group | Kazuharu Katagiri, Shigeto Ohta, Shozo Ishikawa, Makoto Kitahara | 1982-11-16 |
| 4359515 | Disazo electrophotographic light-sensitive media | Kazuharu Katagiri, Shigeto Ohta, Shozo Ishikawa, Makoto Kitahara | 1982-11-16 |
| 4356243 | Electrophotographic media with benzoxazole group containing dis-azo compound | Shozo Ishikawa, Kazuharu Katagiri, Shigeto Ohta, Makoto Kitahara | 1982-10-26 |