Issued Patents All Time
Showing 26–50 of 117 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6565939 | Optical information-recording medium and method for recording information | Naoki Saito | 2003-05-20 |
| 6531261 | Preparation of optical information recording disc and dye solution | Yoshihisa Usami | 2003-03-11 |
| 6489071 | Electrophotosensitive material | Eiichi Miyamoto, Hideaki Fukunaga | 2002-12-03 |
| 6437887 | Optical logic device and optical memory device | Yoshihisa Usami, Masayuki Naya | 2002-08-20 |
| 6346355 | Electrophotosensitive material | Fumio Sugai | 2002-02-12 |
| 6338927 | Stilbene derivative, method of producing the same, and electrophotosensitive material using the same | Yukimasa Watanabe | 2002-01-15 |
| 6245499 | Photothermographic material | Keiichi Suzuki, Toshiaki Kubo, Tsutomu Arai | 2001-06-12 |
| 6197968 | Decolorizable dye | Tetsuo Nakamura | 2001-03-06 |
| 6090514 | Electrophotographic photoreceptor | Mikio Kakui, Hirofumi Kawaguchi, Akihiko Kawahara, Kazunari Hamasaki, Ayako Yashima | 2000-07-18 |
| 6068968 | Photothermographic material | Hirohiko Tsuzuki | 2000-05-30 |
| 6041641 | Method for working groove | Takeshi Ito | 2000-03-28 |
| 6027870 | Photothermographic material | Hirohiko Tsuzuki | 2000-02-22 |
| 6022998 | Stilbene derivative and method for producing the same | Hirofumi Kawaguchi, Yukimasa Watanabe | 2000-02-08 |
| 5998125 | Photothermographic material | Hirohiko Tsuzuki | 1999-12-07 |
| 5965346 | Photothermographic material | Naoyuki Hanaki, Hirohiko Tsuzuki | 1999-10-12 |
| 5948608 | Photothermographic material | Toyohisa Oya, Katsumi Kobayashi, Hirohiko Tsuzuki | 1999-09-07 |
| 5922529 | Photothermographic material | Hirohiko Tsuzuki, Hisashi Okada | 1999-07-13 |
| 5763153 | Photothermographic material | Hirohiko Tsuzuki | 1998-06-09 |
| 5648964 | Master-slave multiplex communication system and PLL circuit applied to the system | Masayuki Takami, Masahiro Kataoka, Taro Shibagaki | 1997-07-15 |
| 5607829 | Silver halide photographic material | Toyohisa Oya, Takahiro Goto | 1997-03-04 |
| 5578439 | Silver halide photographic material | — | 1996-11-26 |
| 5571662 | Silver halide photographic material | Yuji Mihara, Tadashi Ikeda, Takashi Kato | 1996-11-05 |
| 5547489 | Process for producing low-carbon chromium-containing steel | Motoshi Shinkai, Masahide Tsuno, Akihiro Nagatani | 1996-08-20 |
| 5508161 | Photographic silver halide photosensitive material | Kiyoteru Miyake, Takashi Kato | 1996-04-16 |
| 5501946 | Pre-fogged direct reversal silver halide photographic material | Yoshihiro Takagi | 1996-03-26 |