Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7396488 | Light emitting device and fluorescent material | Akiko Yabe, Kanzi Shimizu, Takayuki Shoda, Masahiko Yoshino | 2008-07-08 |
| 7282160 | Light emitting device and fluorescent material | Akiko Yabe, Kanzi Shimizu, Takayuki Shoda, Masahiko Yoshino | 2007-10-16 |
| 6746629 | Squarylium compounds, filters for plasma display panels employing them, and plasma display panel devices | Tetsuo Ozawa | 2004-06-08 |
| 6551394 | Recording liquid, printed product and ink jet recording method | Takashi Hirasa, Ken Sasaki | 2003-04-22 |
| 6383278 | Recording liquid, printed product and ink jet recording method | Takashi Hirasa, Ken Sasaki | 2002-05-07 |
| 5753393 | Electrophotographic photoreceptor | Teruyuki Mitsumori, Atsuo Saita | 1998-05-19 |
| 5547791 | Electrophotographic photoreceptor | Kozo Ishio | 1996-08-20 |
| 5475213 | Optical information processing element and a light-to-light converting device | Akiteru Fujii, Mitsuru Yoneyama | 1995-12-12 |
| 5389481 | Electrophotographic photoreceptor | Atsuo Saita, Shuichi Maeda, Kohzo Ishio, Hitoshi Ono | 1995-02-14 |
| 5298608 | Metal chelate of a monoazo compound and optical recording medium using it | Shuichi Maeda, Chiyoko Fukabori, Takumi Nagao | 1994-03-29 |
| 5284728 | Electrophotographic photoreceptor containing hydrazone compounds | Hitoshi Ono, Atsuo Saita, Sumiko Watabe | 1994-02-08 |
| 5231173 | Disazo metal chelate compounds for optical recording media | Shuichi Maeda, Satoru Imamura, Masako Takeuchi, Takumi Nagao | 1993-07-27 |
| 5104749 | Organic electroluminescent device | Yoshiharu Sato, Masayuki Yajima, Hitoshi Ono | 1992-04-14 |
| 4987045 | Photosensitive member for electrophotography | Tetsumi Suzuki, Hitoshi Ono, Osamu Ando | 1991-01-22 |
| 4962013 | Photochromic material containing a spirooxazine and a nitroxy free radical triplet state quencher | Yasuo Tateoka, Masashi Ito, Shuichi Maeda, Kazuo Mitsuhashi | 1990-10-09 |
| 4921770 | Photoreceptor for electrophotography | Shinji Aramaki | 1990-05-01 |
| 4791194 | AZO compound photoreceptor having napthol substiuents | Tetsumi Suzuki, Hitoshi Ono, Shinji Aramaki, Michiyo Yokoyama | 1988-12-13 |
| 4734348 | Photosensitive member for electrophotography containing polyvinyl acetal | Tetsumi Suzuki, Shinji Aramaki | 1988-03-29 |
| 4725519 | Dual layer electrophotographic photoreceptor comprises titanium phthalocyanine charge generator and hydrazone charge transport materials | Tetsumi Suzuki, Hitoshi Ono, Shigenori Otsuka, Mamoru Nozomi | 1988-02-16 |
| 4664997 | Crystalline oxytitanium phthalocyanine and photoreceptor for use in electrophotography | Tetsumi Suzuki, Hitoshi Ono, Shigenori Otsuka, Mamoru Nozomi | 1987-05-12 |
| 4618555 | Electrophotographic photoreceptor comprising azo compounds | Tetsumi Suzuki, Hitoshi Ono, Shinji Aramaki, Michiyo Yokoyama | 1986-10-21 |
| 4485160 | Electrophotographic hydrazone plate | Tetsumi Suzuki, Hitoshi Ono, Shinji Aramaki | 1984-11-27 |
| 4407919 | Electrophotographic plate | Shigenori Otsuka, Tsunemitsu Tajima, Yukihiro Sato | 1983-10-04 |
| 4396696 | Electrophotographic plate having azo compound photosensitive layer | Hideki Nagasaka | 1983-08-02 |
| 4367273 | Electrophotographic plate comprising a conductive substrate and a photosensitive layer containing an organic photoconductor layer composed of a hydrazone compound | Shigenori Otsuka, Tsunemitsu Tajima | 1983-01-04 |