Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6794114 | Optical recording medium | Hisashi Shoda, Rieko Hata | 2004-09-21 |
| 5532342 | Azo metal chelate compound | Tameichi Ochiai, Yutaka Kurose, Takumi Nagao, Takako Tsukahara | 1996-07-02 |
| 5447823 | Metal chelate compound and optical recording medium using the compound | Tameichi Ochiai, Yutaka Kurose, Takumi Nagao, Takako Tsukahara | 1995-09-05 |
| 5389419 | Optical recording medium comprising a dye-incorporated composition | Shuichi Maeda, Kazuo Mitsuhashi, Takako Tsukahara | 1995-02-14 |
| 5330542 | Dye-incorporated composition | Shuichi Maeda, Kazuo Mitsuhashi, Takako Tsukahara | 1994-07-19 |
| 5231173 | Disazo metal chelate compounds for optical recording media | Tetsuo Murayama, Shuichi Maeda, Masako Takeuchi, Takumi Nagao | 1993-07-27 |