Issued Patents All Time
Showing 51–75 of 135 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6465648 | REACTION PRODUCT, PROCESS OF PRODUCING SAME, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR USING SAME, ELECTROPHOTOGRAPHIC APPARATUS HAVING THE PHOTOCONDUCTOR, AND PROCESS CARTRIDGE FOR ELECTROPHOTOGRAPHIC APPARATUS | Kaoru Tadokoro, Masayuki Shoshi, Michihiko Namba, Chiaki Tanaka | 2002-10-15 |
| 6448384 | Bisazo compound and electrophotographic photoconductor using the same | — | 2002-09-10 |
| 6333439 | Bisazo compound and electrophotographic photoconductor using the same | — | 2001-12-25 |
| 6316577 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Masaomi Sasaki, Masafumi Ohta, Akihiro Imai, Mitsutoshi Anzai, Tamotsu Aruga +2 more | 2001-11-13 |
| 6313288 | Mixture of titanyltetraazaporphyrin compounds and electrophotographic photoconductor using the same | Masayuki Shoshi, Kaoru Tadokoro, Chiaki Tanaka, Michihiko Namba | 2001-11-06 |
| 6271356 | Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for producing the azo compounds | Masaomi Sasaki, Chiaki Tanaka | 2001-08-07 |
| 6191249 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chiaki Tanaka, Nozomu Tamoto, Masaomi Sasaki, Kazukiyo Nagai, Chihaya Adachi +3 more | 2001-02-20 |
| 6184362 | Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for producing the azo compounds | Masaomi Sasaki, Chiaki Tanaka | 2001-02-06 |
| 6132914 | Bisazo compound and electrophotographic photoconductor using the same | — | 2000-10-17 |
| 6103435 | Electrophotographic photoconductor, AZO compounds for use in the same, and intermediates for producing the AZO compounds | Masaomi Sasaki, Chiaki Tanaka | 2000-08-15 |
| 6093784 | Electrophotographic photoconductor and polycarbonate resin for use therein | Hiroshi Tamura, Tsutomu Nakajima, Masaomi Sasaki, Toshimasa Tokuda | 2000-07-25 |
| 6069224 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chihaya Adachi, Masaomi Sasaki, Kazukiyo Nagai, Chiaki Tanaka, Nozomu Tamoto +4 more | 2000-05-30 |
| 6066757 | Stilbene compound and process for producing same | Chiaki Tanaka, Masaomi Sasaki | 2000-05-23 |
| 6027846 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Masaomi Sasaki, Masafumi Ohta, Akihiro Imai, Mitsutoshi Anzai, Tamotsu Aruga +2 more | 2000-02-22 |
| 6018014 | Aromatic polycarbonate and electrophotographic photosensitive medium using same | Kazukiyo Nagai, Masaomi Sasaki, Hiroshi Tamura, Tetsuro Suzuki, Chihaya Adachi +6 more | 2000-01-25 |
| 5981124 | Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for producing the azo compounds | Masaomi Sasaki, Chiaki Tanaka | 1999-11-09 |
| 5942363 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chiaki Tanaka, Nozomu Tamoto, Masaomi Sasaki, Kazukiyo Nagai, Chihaya Adachi +3 more | 1999-08-24 |
| 5910561 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chihaya Adachi, Masaomi Sasaki, Kazukiyo Nagai, Chiaki Tanaka, Nozomu Tamoto +4 more | 1999-06-08 |
| 5853935 | Electrophotographic photoconductor | Tetsuro Suzuki, Tatsuya Niimi | 1998-12-29 |
| 5846680 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chihaya Adachi, Masaomi Sasaki, Kazukiyo Nagai, Chiaki Tanaka, Nozomu Tamoto +4 more | 1998-12-08 |
| 5840454 | Aromatic polycarbonate and electrophotographic photosensitive medium using same | Kazukiyo Nagai, Masaomi Sasaki, Hiroshi Tamura, Tetsuro Suzuki, Chihaya Adachi +6 more | 1998-11-24 |
| 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, Tetsuro Suzuki +1 more | 1998-11-03 |
| 5808155 | Electrophotographic photoconductor, carbonate compound for use in the same, and intermediate compound for producing the carbonate compound | Masaomi Sasaki, Chiaki Tanaka | 1998-09-15 |
| 5789128 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chihaya Adachi, Masaomi Sasaki, Kazukiyo Nagai, Chiaki Tanaka, Nozomu Tamoto +4 more | 1998-08-04 |
| 5747204 | Electrophotographic photoconductor and aromatic polycarbonate resin for use in the same | Mitsutoshi Anzai, Akihiro Imai, Masaomi Sasaki, Hiroshi Tamura, Tetsuro Suzuki +1 more | 1998-05-05 |