Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695911 | Optical recording medium | Hisato Itoh, Akio Karasawa, Takahisa Oguchi, Shin Aihara | 1997-12-09 |
| 5693396 | Phthalocyanine compounds and optical recording media comprising them | Tsutami Misawa, Taizo Nishimoto, Takeshi Tsuda, Keisuke Takuma | 1997-12-02 |
| 5672462 | Optical recording medium | Keisuke Takuma, Tsutami Misawa, Taizo Nishimoto, Takeshi Tsuda, Hideki Umehara | 1997-09-30 |
| 5646273 | Phthalocyanine compound and optical recording medium containing it | Takahisa Oguchi, Hideki Umehara, Ryu Oi, Hisato Itoh | 1997-07-08 |
| 5597386 | Hair coloring composition comprising anti-hair antibodies immobilized on coloring materials, and hair coloring methods | Shigeru Igarashi, Toshihiro Usui, Junichiro Hiraoka, Keiko Hashimoto, Hideyo Uchiwa +3 more | 1997-01-28 |