Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660452 | Optical information memory medium and display recording method using the same | Hiroko Iwasaki, Kenichi Aihara, Kyohji Hattori, Akihiko Okamoto, Yoshihiko Hotta +1 more | 2003-12-09 |
| 6329035 | Optical data storage medium capable of reversibly displaying information | Hiroko Iwasaki, Kenichi Aihara, Kyohji Hattori, Akihiko Okamoto, Yoshihiko Hotta +1 more | 2001-12-11 |
| 5608010 | Polymers of acrylic acid ester derivatives having a triphenyl amine skeleton | Hiroshi Tamura, Toshio Fukagai, Masaomi Sasaki | 1997-03-04 |
| 5496671 | Electrophotographic photoconductor | Hiroshi Tamura, Yoshiaki Kawasaki | 1996-03-05 |
| 5488137 | Acrylic acid ester derivative having a triphenyl amine skeleton | Hiroshi Tamura, Toshio Fukagai, Masaomi Sasaki | 1996-01-30 |
| 5411827 | Electrophotographic photoconductor | Hiroshi Tamura, Yoshiaki Kawasaki | 1995-05-02 |
| 5339138 | Electrophotographic image formation method | Toshio Fukagai, Kiyoshi Taniguchi, Hiroyuki Kishi, Tomohiro Inoue, Yoshiaki Kawasaki | 1994-08-16 |
| 5322753 | Electrophotographic photoconductor and acrylic acid ester polymer for use in the same | Hiroshi Tamura, Toshio Fukagai, Masaomi Sasaki | 1994-06-21 |