Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11346983 | Optical thin film and manufacturing method of optical element | Seiken Matsumoto, Kazuhiro Hoshino | 2022-05-31 |
| 7180848 | Optical information recording medium | Saturo Yamashita, Katsunori Ohshima, Kenji Oishi | 2007-02-20 |
| 7096479 | Optical information recording medium | Masaru Hatakeyama, Satoru Yamashita | 2006-08-22 |