Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7782744 | Systems and methods for forming a master disk utilizing variation in an applied signal power for forming uniform pits | Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Eijiro Kikuno | 2010-08-24 |
| 7706245 | High density optical disc having small track pitch | Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Eijiro Kikuno | 2010-04-27 |
| 7529175 | Method for making an optical disc having a track pitch smaller than a recording beam diameter | Sohmei Endoh, Noriyuki Saito, Takahiro Igari, Takeshi Gouko, Eijiro Kikuno | 2009-05-05 |
| 7177264 | Optical recording medium, manufacturing method thereof, optical recording method, optical reproduction method, optical recording device, optical reproduction device and optical recording/reproduction device | Katsuhlsa Aratani, Makoto Tsukahara | 2007-02-13 |
| 5290731 | Aluminum metallization method | Yukiyasu Sugano, Kazuhide Koyama, Hirofumi Sumi | 1994-03-01 |