Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9135941 | Dye for optical information recording medium and optical information recording medium | Hidenori Somei, Takeo Tsuzuki, Daizo Yokoyama | 2015-09-15 |
| 8993085 | Recordable optical recording medium having recording layer containing organic dye | Isao Matsuda | 2015-03-31 |
| 8993086 | Recordable optical recording medium | Isao Matsuda, Eiji Yamada | 2015-03-31 |
| 8747983 | Optical recording medium | Akihisa Endo, Kazunobu TAKEGUCHI, Fuyuki Miyazawa, Shinichi Kojo | 2014-06-10 |
| 8747984 | Optical recording medium | Kazunobu TAKEGUCHI | 2014-06-10 |
| 8715805 | Optical recording medium | Isao Matsuda, Takaki Hamamoto | 2014-05-06 |
| 7981494 | Optical informaton recording medium | Isao Matsuda, Takeshi Otsu, Fumi Hara | 2011-07-19 |
| 7867595 | Optical information recording medium | Takeshi Otsu, Akimasa Miyata, Motomitsu Hagiwara, Isao Matsuda, Fumi Hara +1 more | 2011-01-11 |
| 7501171 | Optical information recording medium | Mamoru Uchida, Isao Okitsu, Toru Fujii | 2009-03-10 |