Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7184453 | Semiconductor laser device containing laser driver and electronic equipment having the same | — | 2007-02-27 |
| 6899936 | Stamper, manufacturing method therefor and optical device manufactured therewith | Kazunori Matsubara | 2005-05-31 |
| 5820795 | Manufacturing method of magneto-optical master disk | Tetsuya Inui, Toshikazu Nagaura, Kenji Ohta | 1998-10-13 |
| 5500850 | Optical disk with grooves and pits of different depths | Kazuo Van, Kenji Ohta, Tetsuya Inui, Toshikazu Nagaura, Hirotaka Toki | 1996-03-19 |
| 5458985 | Stamper | Hitoshi Isono | 1995-10-17 |
| 5399461 | Optical disk for use in optical memory devices | Kazuo Van, Kenji Ohta, Tetsuya Inui, Toshikazu Nagaura, Hirotaka Toki | 1995-03-21 |
| 5385638 | Method of manufacturing a stamper | Hitoshi Isono | 1995-01-31 |
| 5331625 | Optical disc with antistatic coating containing tin oxide and phosphorous | Michinobu Mieda, Toshikazu Nagaura, Kenji Ohta, Hiroo Yoshidome | 1994-07-19 |