Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670014 | Information recording medium and method for producing the same, and method for recording/reproducing information thereon | Takashi Nishihara, Noboru Yamada | 2003-12-30 |
| 6607869 | Optical information recording medium and method of manufacturing the same | Keiichiro Horai, Toshiaki Kashihara, Noboru Yamada | 2003-08-19 |