Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7902402 | Tetramine compound and organic EL device | Shigeru Kusano, Makoto Koike, Atsushi Takesue | 2011-03-08 |
| 7897816 | Tetramine compound and organic EL device | Shigeru Kusano, Makoto Koike, Atsushi Takesue | 2011-03-01 |
| 7807274 | Tetramine compound and organic EL device | Shigeru Kusano, Makoto Koike, Atsushi Takesue | 2010-10-05 |
| 7799492 | P-terphenyl compound and photosensitive body for electrophotography using such compound | Katsumi Abe, Atsushi Takesue, Shinya Nagai | 2010-09-21 |
| 7759030 | P-terphenyl compound and photosensitive body for electrophotography using such compound | Katsumi Abe, Atsushi Takesue, Shinya Nagai | 2010-07-20 |
| 7402701 | Organic EL devices and production process thereof | Tetsuya Kato, Kazushige Kojima, Shigeru Kusano, Makoto Koike, Atsushi Takesue | 2008-07-22 |
| 6897000 | Charge controlling agent, method for producing the same and toner for developing electrostatic image | Shinji Otani, Noriyuki Suzuki, Hideyuki Otsuka | 2005-05-24 |
| 6790574 | Electrophotographic photoreceptor | Katsumi Abe, Chieko Inayoshi, Masaki Ohkubo, Yasuo Murakami | 2004-09-14 |
| 6316577 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Tomoyuki Shimada, Masaomi Sasaki, Masafumi Ohta, Akihiro Imai, Tamotsu Aruga +2 more | 2001-11-13 |
| 6191249 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chiaki Tanaka, Nozomu Tamoto, Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada +3 more | 2001-02-20 |
| 6069224 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chihaya Adachi, Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada, Chiaki Tanaka +4 more | 2000-05-30 |
| 6027846 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Tomoyuki Shimada, Masaomi Sasaki, Masafumi Ohta, Akihiro Imai, Tamotsu Aruga +2 more | 2000-02-22 |
| 6018014 | Aromatic polycarbonate and electrophotographic photosensitive medium using same | Kazukiyo Nagai, Masaomi Sasaki, Hiroshi Tamura, Tetsuro Suzuki, Tomoyuki Shimada +6 more | 2000-01-25 |
| 5942363 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chiaki Tanaka, Nozomu Tamoto, Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada +3 more | 1999-08-24 |
| 5910561 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chihaya Adachi, Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada, Chiaki Tanaka +4 more | 1999-06-08 |
| 5846680 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chihaya Adachi, Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada, Chiaki Tanaka +4 more | 1998-12-08 |
| 5840454 | Aromatic polycarbonate and electrophotographic photosensitive medium using same | Kazukiyo Nagai, Masaomi Sasaki, Hiroshi Tamura, Tetsuro Suzuki, Tomoyuki Shimada +6 more | 1998-11-24 |
| 5840980 | Diamine compounds and electrophotographic photoreceptor | Atsushi Takesue, Takanobu Watanabe, Chieko Inayoshi | 1998-11-24 |
| 5830980 | Electrophotographic photoconductor, aromatic polycarbonate resin for use in the same, and method of producing the aromatic polycarbonate resin | Akihiro Imai, Masaomi Sasaki, Hiroshi Tamura, Tomoyuki Shimada, Tetsuro Suzuki +1 more | 1998-11-03 |
| 5789128 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chihaya Adachi, Masaomi Sasaki, Kazukiyo Nagai, Tomoyuki Shimada, Chiaki Tanaka +4 more | 1998-08-04 |
| 5747204 | Electrophotographic photoconductor and aromatic polycarbonate resin for use in the same | Akihiro Imai, Masaomi Sasaki, Hiroshi Tamura, Tomoyuki Shimada, Tetsuro Suzuki +1 more | 1998-05-05 |
| 5728500 | Electrophotographic photoreceptor with acenaphthene compound | Atsushi Takesue, Takanobu Watanabe, Chieko Inayoshi | 1998-03-17 |
| 5723243 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Masaomi Sasaki, Hiroshi Tamura, Tomoyuki Shimada, Tetsuro Suzuki, Chiaki Tanaka +6 more | 1998-03-03 |
| 5721082 | Electrophotographic photoreceptor containing amine compound | Atsushi Takesue, Takanobu Watanabe, Chieko Inayoshi | 1998-02-24 |
| 5707768 | Diamine compounds and electrophotographic photoreceptor | Atsushi Takesue, Takanobu Watanabe, Chieko Inayoshi | 1998-01-13 |