Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7368156 | Method for manufacturing discoid optical record medium and discoid optical record medium | Mamoru Usami, Tomoki Ushida, Kenji Yamaga | 2008-05-06 |
| 7205038 | Optical recording medium and method for manufacturing the same | Junichi Satou, Mamoru Usami | 2007-04-17 |
| 7052759 | Optical recording medium | Junichi Satou, Mamoru Usami | 2006-05-30 |
| 6977107 | Optical recording medium and method for making the same | Junichi Satou, Mamoru Usami, Akira Itoga | 2005-12-20 |
| 6835435 | Stamper, mold system, recording medium substrate, recording medium, optical disc substrate, optical disc, and method for producing stamper | Yuuichi Kawaguchi, Kenji Yamaga, Hiroaki Takahata, Hisaji Oyake | 2004-12-28 |
| 6815029 | Stamper, mold system, recording medium substrate, recording medium, optical disc substrate, optical disc, and method for producing stamper | Yuuichi Kawaguchi, Kenji Yamaga, Hiroaki Takahata, Hisaji Oyake | 2004-11-09 |
| 5838093 | Piezoelectric element package in which a piezoelectric element on a chip carrier is reliably shielded by using a cap | Takumi Kooriike | 1998-11-17 |
| 5648105 | Apparatus for making a plurality of optical record disc subtrates | Seiki Shimazu, Kenji Yamaga, Atsushi Koyama, Yuichi NAMIKAWA | 1997-07-15 |
| 5517101 | Stepping motor control device for automobile air-conditioning system | Toshiya Yamashita, Fuhito Umegaki, Hiroshi Ohsawa, Shinichi Ohi | 1996-05-14 |
| 5458821 | Method of making a plurality of optical record disc substrates | Seiki Shimazu, Kenji Yamaga, Atsushi Koyama, Yuichi NAMIKAWA | 1995-10-17 |
| 4799120 | Guard panel for tape cassettes and method and apparatus for manufacturing the same | Yoshiki Satoh | 1989-01-17 |