Issued Patents All Time
Showing 51–75 of 163 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5808155 | Electrophotographic photoconductor, carbonate compound for use in the same, and intermediate compound for producing the carbonate compound | Tomoyuki Shimada, Chiaki Tanaka | 1998-09-15 |
| 5789128 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Chihaya Adachi, Kazukiyo Nagai, Tomoyuki Shimada, 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, Hiroshi Tamura, Tomoyuki Shimada, Tetsuro Suzuki +1 more | 1998-05-05 |
| 5723243 | Electrophotographic photoconductor and aromatic polycarbonate resin for use therein | Hiroshi Tamura, Tomoyuki Shimada, Tetsuro Suzuki, Chiaki Tanaka, Kouji Kishida +6 more | 1998-03-03 |
| 5672728 | Method for preparing the pyrenylamine derivatives | Chiaki Tanaka, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi | 1997-09-30 |
| 5672756 | Triphenylamine compound for use in electrophotographic photoconductors | Tomoyuki Shimada, Tamotsu Aruga, Masafumi Ohta, Mitsutoshi Anzai, Akihiro Imai | 1997-09-30 |
| 5663407 | Electrophotographic photoconductor, carbonate compound for use in the same, and intermediate compound for producing the carbonate compound | Tomoyuki Shimada, Chiaki Tanaka | 1997-09-02 |
| 5641598 | Stilbene compound, process for producing same and electrophotographic photoconductor containing same | Chiaki Tanaka, Tomoyuki Shimada | 1997-06-24 |
| 5631404 | Diamine compounds for use in electrophotographic photoconductors | Mitsutoshi Anzai, Yasuo Murakami, Atsushi Takesue, Tomoyuki Shimada, Tamotsu Aruga +1 more | 1997-05-20 |
| 5623062 | Bisazo compounds as charge generating materials | Tomoyuki Shimada | 1997-04-22 |
| 5616805 | Methods for preparing pyrenylamine derivatives and intermediates | Chiaki Tanaka, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi | 1997-04-01 |
| 5616801 | Charge transporting materials and electrophotographic photoconductors using the same | Tomoyuki Shimada, Mitsuru Hashimoto, Tamotsu Aruga | 1997-04-01 |
| 5608010 | Polymers of acrylic acid ester derivatives having a triphenyl amine skeleton | Hiroshi Tamura, Toshio Fukagai, Naoshi Mishima | 1997-03-04 |
| 5604065 | Electrophotographic photoconductor and triphenylamine compound for use therein | Tomoyuki Shimada, Tamotsu Aruga, Masafumi Ohta, Mitsutoshi Anzai, Akihiro Imai | 1997-02-18 |
| 5599995 | Electrophotographic photoconductor comprising pyrenylamine derivative, the pyrenylamine derivative, intermediate for preparation thereof, and method for preparing the pyrenylamine derivative and the intermediate | Chiaki Tanaka, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi | 1997-02-04 |
| 5587516 | Electrophotographic photoconductor comprising pyrenylamine derivative, the pyrenylamine derivative, intermediate for preparation thereof, and method for preparing the pyrenylamine derivative and the intermediate | Chiaki Tanaka, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi | 1996-12-24 |
| 5578405 | Electrophotographic photoconductor containing disazo and trisazo pigments | Takaaki Ikegami, Eiji Kurimoto, Takashi Rokutanzono, Katsuichi Ohta, Yasuo Suzuki +3 more | 1996-11-26 |
| 5576132 | Electrophotographic photoconductor comprising pyrenylamine derivative | Chiaki Tanaka, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi | 1996-11-19 |
| 5569800 | Electrophotographic photoconductor, pyrene-ring-containing olefin compound for use in the same, intermediate for synthesizing the olefin compound, and method of synthesizing the olefin compound | Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi | 1996-10-29 |
| 5550293 | Electrophotographic photoconductors and tertiary amine compounds having condensed polycyclic group for use in the same | Tomoyuki Shimada, Tamotsu Aruga | 1996-08-27 |
| 5547792 | Electrophotographic photoconductor, carbonate compound for use in the same, and intermediate compound for producing the carbonate compound | Tomoyuki Shimada, Chiaki Tanaka | 1996-08-20 |
| 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, Tomoyuki Shimada, Tamotsu Aruga +1 more | 1996-02-06 |
| 5488164 | Electrophotographic photoconductors and tertiary amine compounds having condensed polycyclic group for use in the same | Tomoyuki Shimada, Tamotsu Aruga | 1996-01-30 |
| 5488137 | Acrylic acid ester derivative having a triphenyl amine skeleton | Hiroshi Tamura, Toshio Fukagai, Naoshi Mishima | 1996-01-30 |