Issued Patents All Time
Showing 101–125 of 135 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5403950 | Dipyrenylamine derivatives useful in electrophotographic photoconductors | Masaomi Sasaki, Tamotsu Aruga, Hiroshi Adachi | 1995-04-04 |
| 5382692 | Electrophotographic photoconductors and tertiary amine compounds having condensed polycyclic group for use in the same | Masaomi Sasaki, Tamotsu Aruga | 1995-01-17 |
| 5370954 | Photoconductive composition containing trisazo and disazo compounds | Katsuichi Ohta, Masaomi Sasaki, Mitsuru Hashimoto, Kazuya Ishida | 1994-12-06 |
| 5356742 | Dipyrenylamine derivatives and electrophotographic photoconductor comprising the same | Masaomi Sasaki, Tamotsu Aruga, Hiroshi Adachi | 1994-10-18 |
| 5344735 | Bisazo electrophotographic photoconductor | Masaomi Sasaki, Mitsuru Hashimoto | 1994-09-06 |
| 5344985 | Aldehyde intermediates for the preparation of pyrenylamine derivatives having unsaturated bond | Chiaki Tanaka, Masaomi Sasaki, Tamotsu Aruga, Hiroshi Adachi | 1994-09-06 |
| 5334470 | Electrophotographic element with M-phenylenediamine derivatives therein | Masaomi Sasaki, Tamotsu Aruga, Hiroshi Adachi | 1994-08-02 |
| 5319069 | Polyether compounds and electrophotographic photoconductor comprising one polyether compound | Masaomi Sasaki, Tamotsu Aruga | 1994-06-07 |
| 5312707 | Electrophotographic photoconductor and diamine compounds for use in the same | Masafumi Ota, Masaomi Sasaki, Tamotsu Aruga, Mitsutoshi Anzai, Masaki Okubo | 1994-05-17 |
| 5298661 | Charge transporting materials and electrophotographic photoconductors using the same | Masaomi Sasaki, Tamotsu Aruga | 1994-03-29 |
| 5268246 | Electrophotographic photoconductor with pyrene-ring-containing olefin compound for use in the same | Tamotsu Aruga, Masaomi Sasaki, Hiroshi Adachi | 1993-12-07 |
| 5260156 | 1,3-pentadiene derivatives and electrophotographic photoconductor using the same | Mitsuru Hashimoto, Masaomi Sasaki, Nobuo Suzuki, Takayuki Sakai, Susumu Suzuka | 1993-11-09 |
| 5252750 | Polyolefin amino derivatives | Mitsuru Hashimoto, Nobuo Suzuki, Takayuki Sakai, Susumu Suzuka, Masaomi Sasaki | 1993-10-12 |
| 5250377 | Aromatic diolefinic compounds, aromatic diethyl compounds and electrophotographic photoconductors comprising one aromatic diethyl compound | Masaomi Sasaki, Mitsuru Hashimoto | 1993-10-05 |
| 5248826 | Polyether amine compounds | Masaomi Sasaki, Tamotsu Aruga | 1993-09-28 |
| 5233090 | [2,2]paracyclophane compounds for use in electrophotographic photoconductors | Masaomi Sasaki, Tamotsu Aruga | 1993-08-03 |
| 5219692 | Electrophotographic photoconductors and tertiary amine compounds having condensed polycyclic group for use in the same | Masaomi Sasaki, Tamotsu Aruga | 1993-06-15 |
| 5166438 | 1,3-pentadiene derivatives and electrophotographic photoconductor using the same | Mitsuru Hashimoto, Masaomi Sasaki, Nobuo Suzuki, Takayuki Sakai, Susumu Suzuka | 1992-11-24 |
| 5158850 | Polyether compounds and electrophotographic photoconductor comprising one polyether compound | Masaomi Sasaki, Tamotsu Aruga | 1992-10-27 |
| 5159087 | Aromatic diolefinic compounds, aromatic diethyl compounds and electrophotographic photoconductors comprising one aromatic diethyl compound | Masaomi Sasaki, Mitsuru Hashimoto | 1992-10-27 |
| 5153073 | Electroluminescent device | Teruyuki Ohnuma, Masafumi Ohta, Fumio Kawamura, Yohta Sakon, Toshihiko Takahashi | 1992-10-06 |
| 5098807 | Electrophotographic photoconductors and [2,2]paracyclophane compounds for use in the same | Masaomi Sasaki, Tamotsu Aruga | 1992-03-24 |
| 5097022 | Bisazo pigments for use in electrophotographic photoconductors | Masaomi Sasaki, Mitsuru Hashimoto | 1992-03-17 |
| 5081233 | Bisazo compounds and electrophotographic photoconductors comprising the bisazo compounds | Masaomi Sasaki | 1992-01-14 |
| 5072061 | 1,14-bis(4-nitrophenyl)-1,3,5,7,9,11,13-tetradecaheptaene and preparation method thereof | Masaomi Sasaki, Mitsuru Hashimoto | 1991-12-10 |