Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5530115 | Process for producing crystalline I-type oxytitanium phthalocyanine | Kazushi Iuchi, Hajime Miyazaki, Itaru Yamazaki | 1996-06-25 |
| 5466550 | Electrophotographic photosensitive member and electrophotographic apparatus, device unit and facsimile machine using the same | Tetsuro Kanemaru, Itaru Yamazaki, Kazushi Iuchi | 1995-11-14 |
| 5432278 | Process for producing crystalline oxytitanium phthalocyanine | Itaru Yamazaki, Hajime Miyazaki, Tetsuro Kanemaru, Kazushi Iuchi | 1995-07-11 |
| 5286589 | Electrophotographic photosensitive member | Shintetsu Go, Kazushi Iuchi, Toshie Miyaji, Hajime Miyazaki, Masakazu Matsumoto | 1994-02-15 |
| 5246807 | Electrophotographic photosensitive member, and electrophotographic apparatus, device unit, and facsimile machine employing the same | Tetsuro Kanemaru, Itaru Yamazaki, Shinya Mayama, Masato Tanaka | 1993-09-21 |
| 5194354 | Low crystalline oxytitanium phthalocyanine, process for producing crystalline oxytitanium phthalocyanines using the same, oxytitanium phthalocyanine of a novel crystal form and electrophotographic photosensitive member using the same | Kazushi Iuchi, Itaru Yamazaki, Hajime Miyazaki | 1993-03-16 |
| 5132197 | Oxytitanium phthalocyanine, process for producing same and electrophotosensitive member using same | Kazushi Iuchi, Hajime Miyazaki, Itaru Yamazaki | 1992-07-21 |
| 5047304 | Electrophotographic photosensitive member | Hajime Miyazaki, Shintetsu Go, Kazushi Iuchi | 1991-09-10 |
| 5034294 | Electrophotographic photosensitive member with compound having electron donor and acceptor portions | Shintetsu Go, Kazushi Iuchi, Hajime Miyazaki, Masakazu Matsumoto | 1991-07-23 |
| 4994338 | Electrophotographic photosensitive layer containing azo pigment with coupler residue having phenolic hydroxyl group | — | 1991-02-19 |
| 4988593 | Azo compound containing electrophotographic photosensitive member | — | 1991-01-29 |
| 4942106 | Electrophotographic photosensitive member containing disazo pigment having coupler residue | Tetsuro Kanemaru | 1990-07-17 |
| 4895781 | Layered electrophotographic photosensitive member containing substituted polycyclo trisazo compounds | — | 1990-01-23 |
| 4810607 | Photosensitive member for electrophotography containing trisazo pigment having pyridylene group in its central skeleton | Masakazu Matsumoto, Takao Takiguchi | 1989-03-07 |
| 4727009 | Electrophotographic photosensitive member having two charge transport layers differing in oxidation potentials | — | 1988-02-23 |