Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38979 | Optical information recording medium and composition for optical information recording film | Tadashi Koike, Yuji Inatomi, Takeshi Tsuda, Sumio Hirose | 2006-02-14 |
| 6060606 | Dipyrromethene metal chelate compounds | Tsutami Misawa, Kenichi Sugimoto, Taizo Nishimoto, Hisashi Tsukahara, Takeshi Tsuda +1 more | 2000-05-09 |
| 5948593 | Optical recording medium | Tsutami Misawa, Kenichi Sugimoto, Taizo Nishimoto, Hisashi Tsukahara, Takeshi Tsuda +1 more | 1999-09-07 |
| 5876820 | Optical information recording medium and composition for optical information recording film | Tadashi Koike, Yuji Inatomi, Takeshi Tsuda, Sumio Hirose | 1999-03-02 |
| 5855979 | Optical recording medium | Jun TOKUHIRO, Yuji Inatomi, Tomoyoshi Sasakawa, Tsutami Misawa, Kenichi Sugimoto +2 more | 1999-01-05 |
| 5750229 | Phthalocyanine compound and optical recording medium containing it | Takahisa Oguchi, Kenichi Sugimoto, Ryu Oi, Hisato Itoh | 1998-05-12 |
| 5696758 | Optical recording media | Masatoshi Yanagimachi, Sumio Hirose, Yoshiteru Taniguchi | 1997-12-09 |
| 5672462 | Optical recording medium | Keisuke Takuma, Tsutami Misawa, Kenichi Sugimoto, Taizo Nishimoto, Takeshi Tsuda | 1997-09-30 |
| 5658707 | Optical recording media | Keisuke Takuma, Tsutami Misawa, Masatoshi Yanagimachi, Yoshiteru Taniguchi, Sumio Hirose | 1997-08-19 |
| 5646273 | Phthalocyanine compound and optical recording medium containing it | Takahisa Oguchi, Kenichi Sugimoto, Ryu Oi, Hisato Itoh | 1997-07-08 |
| 5633106 | Optical recording media and a method of recording and reproducing information | Shin Aihara, Masatoshi Yanagimachi, Yoshiteru Taniguchi, Sumio Hirose | 1997-05-27 |
| 5492744 | Optical information recording medium and composition for optical information recording film | Tadashi Koike, Yuji Inatomi, Takeshi Tsuda, Sumio Hirose | 1996-02-20 |
| 5446142 | Phthalocyanine and naphthalocyanine light-absorbing compound and optical recording medium containing same | Hisato Itoh, Takahisa Oguchi, Kenichi Sugimoto, Ryu Oi, Shin Aihara | 1995-08-29 |
| 5188898 | Ferromagnetic metal particles and preparation process thereof | Kimiteru Tagawa, Seiichi Takahashi, Noritoshi Utsuno, Fujio Hayashi, Shigeo Kiba +1 more | 1993-02-23 |