Issued Patents All Time
Showing 1–25 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8767748 | Signal distribution circuit and stuffing control unit | Hiromichi Makishima, Hiroyuki Honma | 2014-07-01 |
| 8557489 | Gallium phthalocyanine compound, gallium phthalocyanine composite pigment, method for preparing gallium phthalocyanine composite pigment, and electrophotographic photoconductor | Hiromi Sakaguchi, Yoshiki Yanagawa | 2013-10-15 |
| 8541557 | Azo compound and method of preparing the azo compound | — | 2013-09-24 |
| 8530124 | Hydroxygallium phthalocyanine composite pigment, electrophotographic photoconductor containing the same, and image forming device and process cartridge for image forming device using the same | Hiromi Sakaguchi, Yoshiki Yanagawa | 2013-09-10 |
| 8383304 | Gallium phthalocyanine compound, and image bearing member, image forming method, image forming apparatus, and process cartridge using the gallium phthalocyanine compound | Yoshiki Yanagawa | 2013-02-26 |
| 8380109 | Image forming apparatus and process cartridge | Eiji Kurimoto, Keisuke Shimoyama, Tomoyuki Shimada, Yuuji Tanaka | 2013-02-19 |
| 8232376 | Azo compound and method of preparing the azo compound | — | 2012-07-31 |
| 8232031 | Naphthalenetetracarboxylic acid diimide derivative and electrophotographic photoconductor having the same | Tomoyuki Shimada, Yuuji Tanaka, Eiji Kurimoto, Keisuke Shimoyama | 2012-07-31 |
| 8207312 | Method of preparing complex-AZO pigment and complex-AZO pigment thereof | Hiromi Tada, Yoshiki Yanagawa | 2012-06-26 |
| 8206880 | Electrophotographic photoreceptor, and image forming apparatus and process cartridge therefor using the photoreceptor | Hiromi Tada, Tatsuya Niimi, Norio Nagayama, Yoshiki Yanagawa, Yuuji Tanaka | 2012-06-26 |
| 7858278 | Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptor | Hiroshi Ikuno, Tomoyuki Shimada, Yuuji Tanaka, Hongguo Li | 2010-12-28 |
| 6316577 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Tomoyuki Shimada, Masaomi Sasaki, Akihiro Imai, Mitsutoshi Anzai, Tamotsu Aruga +2 more | 2001-11-13 |
| 6090508 | Optically anisotropic recording medium and method of recording and erasing information using the same | Kyoji Tsutsui, Akio Kojima, Ryohei Miyake | 2000-07-18 |
| 6027846 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Tomoyuki Shimada, Masaomi Sasaki, Akihiro Imai, Mitsutoshi Anzai, Tamotsu Aruga +2 more | 2000-02-22 |
| 5830980 | Electrophotographic photoconductor, aromatic polycarbonate resin for use in the same, and method of producing the aromatic polycarbonate resin | Mitsutoshi Anzai, Akihiro Imai, Masaomi Sasaki, Hiroshi Tamura, Tomoyuki Shimada +1 more | 1998-11-03 |
| 5747204 | Electrophotographic photoconductor and aromatic polycarbonate resin for use in the same | Mitsutoshi Anzai, Akihiro Imai, Masaomi Sasaki, Hiroshi Tamura, Tomoyuki Shimada +1 more | 1998-05-05 |
| 5672756 | Triphenylamine compound for use in electrophotographic photoconductors | Tomoyuki Shimada, Masaomi Sasaki, Tamotsu Aruga, Mitsutoshi Anzai, Akihiro Imai | 1997-09-30 |
| 5656401 | Electroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compounds | Yohta Sakon, Toshihiko Takahashi, Chihaya Adachi, Kazukiyo Nagai | 1997-08-12 |
| 5631404 | Diamine compounds for use in electrophotographic photoconductors | Mitsutoshi Anzai, Yasuo Murakami, Atsushi Takesue, Masaomi Sasaki, Tomoyuki Shimada +1 more | 1997-05-20 |
| 5610309 | Electroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compounds | Yohta Sakon, Toshihiko Takahashi, Chihaya Adachi, Kazukiyo Nagai | 1997-03-11 |
| 5604065 | Electrophotographic photoconductor and triphenylamine compound for use therein | Tomoyuki Shimada, Masaomi Sasaki, Tamotsu Aruga, Mitsutoshi Anzai, Akihiro Imai | 1997-02-18 |
| 5597925 | Method of producing oxadiazole compounds | Yohta Sakon, Toshihiko Takahashi, Chihaya Adachi, Kazukiyo Nagai | 1997-01-28 |
| 5492784 | Positively-chargeable single-layered type electrophotographic photoconductor | Masao Yoshikawa, Masayuki Shoshi, Tetsuro Suzuki, Masakatsu Shimoda, Kaoru Teramura +3 more | 1996-02-20 |
| 5489495 | Electrophotographic photoconductor and diamine compounds for use in the same | Mitsutoshi Anzai, Yasuo Murakami, Atsushi Takesue, Masaomi Sasaki, Tomoyuki Shimada +1 more | 1996-02-06 |
| 5420288 | Electroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compounds | Yohta Sakon, Toshihiko Takahashi, Chihaya Adachi, Kazukiyo Nagai | 1995-05-30 |