Issued Patents All Time
Showing 1–25 of 93 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6486974 | Image reading device | Takehiko Nakai, Hiroshi Tanioka, Shinobu Arimoto, Toshio Hayashi, Tsutomu Utagawa +2 more | 2002-11-26 |
| 6376695 | Organosilicon-modified charge transporting compound and curable composition containing the compound and having charge transporting ability | Nobuo Kushibiki, Kikuko Takeuchi, Hideki Kobayashi, Toru Masatomi, Yuichi Hashimoto +1 more | 2002-04-23 |
| 6296978 | Electrophotographic photosensitive member, a process-cartridge inclusive thereof, and an image forming apparatus | Itaru Takaya, Yuko Sato, Katsumi Aoki, Masataka Kawahara, Keiko Hiraoka | 2001-10-02 |
| 6201616 | Method and apparatus for determining a predetermined pattern on an original based on visible and invisible information on the original | Nobuatsu Sasanuma, Hiroshi Tanioka, Shinobu Arimoto, Toshio Hayashi, Takehiko Nakai +3 more | 2001-03-13 |
| 6187495 | Yellow toner, process for producing the tower and image forming method using the toner | Tatsuhiko Chiba, Satoshi Yasuda, Hiroaki Kawakami, Ryoichi Fujita, Shinya Yachi +1 more | 2001-02-13 |
| 6153879 | Invisible information detecting apparatus | Hiroshi Tanioka, Shinobu Arimoto, Toshio Hayashi, Takehiko Nakai, Tsutomu Utagawa +2 more | 2000-11-28 |
| 6094281 | Image reading device with offset faces for visible and non-visible light sensors | Takehiko Nakai, Hiroshi Tanioka, Shinobu Arimoto, Toshio Hayashi, Tsutomu Utagawa +2 more | 2000-07-25 |
| 6078682 | Image processing apparatus and method, and image reading apparatus | Hiroshi Tanioka, Shinobu Arimoto, Yoshinobu Sato, Toshio Hayashi, Takehiko Nakai +5 more | 2000-06-20 |
| 6051826 | Photosensor with filter for cutting off the input of invisible information | Shinobu Arimoto, Toshio Hayashi, Takehiko Nakai, Tsutomu Utagawa, Tetsuya Nagase +1 more | 2000-04-18 |
| 5910386 | Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge employing the same | Shunichiro Nishida, Masataka Kawahara, Keiko Hiraoka, Nobuo Kushibiki, Hideki Kobayashi +2 more | 1999-06-08 |
| 5905008 | Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge employing the same | Shunichiro Nishida, Keiko Hiraoka, Yayoi Nagao, Hideki Kobayashi, Toru Masatomi | 1999-05-18 |
| 5888690 | Electrophotographic photosensitive member, a process-cartridge inclusive thereof, and an image forming apparatus | Yuichi Hashimoto, Shunichiro Nishida | 1999-03-30 |
| 5879847 | Electrophotographic photosensitive member, a process-cartridge inclusive thereof and an image forming apparatus | Yuichi Hashimoto, Shunichiro Nishida | 1999-03-09 |
| 5834145 | Electrophotographic photosensitve member and image forming apparatus | Yuichi Hashimoto, Yoshio Kashizaki, Yasuko Hayashi | 1998-11-10 |
| 5818489 | Image forming apparatus and process cartridge having exposure device using light beam having specific spot area | Kiyoshi Sakai, Yukio Nagase, Yuichi Hashimoto, Mamoru Tanaka | 1998-10-06 |
| 5812227 | Liquid crystal device, display apparatus using same and display method using same | Yomishi Toshida, Toshikazu Ohnishi, Koichi Sato, Takeo Eguchi, Tsuyoshi Shibata | 1998-09-22 |
| 5763891 | Non-visualized information recording medium and apparatus for detecting the same | Shinobu Arimoto, Toshio Hayashi, Takehiko Nakai, Tsutomu Utagawa, Tetsuya Nagase +1 more | 1998-06-09 |
| 5726460 | Liquid crystal device | Kazuharu Katagiri, Shinjiro Okada, Junichiro Kanbe | 1998-03-10 |
| 5724114 | Liquid crystal device with composition containing optically active material and material showing smectic, smectic A and chiral smectic C phases upon temperature decrease | Kazuharu Katagiri, Shinjiro Okada, Junichiro Kanbe | 1998-03-03 |
| 5724152 | Image reading apparatus and image processing apparatus for reading optical information of visible and non-visible light | Toshio Hayashi, Hiroshi Tanioka, Shinobu Arimoto, Takehiko Nakai, Tsutomu Utagawa +2 more | 1998-03-03 |
| 5720898 | Mesomorphic compound, liquid crystal composition and liquid crystal device | Hiroyuki Nohira, Yuuta Kumano, Kazuharu Katagiri, Kenji Shinjo | 1998-02-24 |
| 5712066 | Image forming method, recording medium, and visible image reproducing method | Shuzo Kaneko, Kazuo Isaka, Yoshio Takasu | 1998-01-27 |
| 5690858 | Mesomorphic compound, liquid crystal composition and liquid crystal device | Hiroyuki Nohira, Michihiro Yamada | 1997-11-25 |
| 5671033 | Liquid crystal device having mixture of cholesteric and smectic liquid crystals and alignment treatment on only one substrate | Kazuharu Katagiri, Shinjiro Okada, Junichiro Kanbe | 1997-09-23 |
| 5666589 | Electrophotographic apparatus and image forming method using a photosensitive member with exposure characteristics responsive to field intensity | Yukio Nagase, Hajime Miyazaki, Teigo Sakakibara, Yuichi Hashimoto, Yoshio Kashizaki +2 more | 1997-09-09 |