Issued Patents 2002
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6483792 | Optical disk, optical disk recording apparatus and method, and optical disk playback apparatus and method | Seiji Kobayashi | 2002-11-19 |
| 6466538 | Optical recording medium having disconnected land and groove forming control portion | Shingo Imanishi, Toshiyuki Kashiwagi | 2002-10-15 |
| 6442110 | BEAM IRRADIATION APPARATUS, OPTICAL APPARATUS HAVING BEAM IRRADIATION APPARATUS FOR INFORMATION RECORDING MEDIUM, METHOD FOR MANUFACTURING ORIGINAL DISK FOR INFORMATION RECORDING MEDIUM, AND METHOD FOR MANUFACTURING INFORMATION RECORDING MEDIUM | Toshiyuki Kashiwagi, Shingo Imanishi | 2002-08-27 |
| 6438074 | Optical recording medium manufacturing master recording apparatus | Yuichi Aki, Takao Kondo | 2002-08-20 |
| 6414935 | Recording medium master production method and recording medium | Shin Masuhara | 2002-07-02 |
| 6335775 | Liquid crystal device having liquid crystal orientation layers including repetitive asymmetrical projects along a plurality of grooves | Takashi Iwamura, Nobuhiro Kihara, Takeshi Yamasaki, Katsuya Shirai, Keiichi Nito +1 more | 2002-01-01 |