Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7171676 | Stamper for producing optical recording medium, optical recording medium, and methods of producing the same | Minoru Takeda, Motohiro Furuki, Shingo Imanishi | 2007-01-30 |
| 6971116 | Stamper for producing optical recording medium, optical recording medium, and methods of producing the same | Minoru Takeda, Motohiro Furuki, Shingo Imanishi | 2005-11-29 |
| 6908655 | Optical recording medium | Koji Ishihata | 2005-06-21 |
| 6764737 | Method of producing information recording medium, production apparatus and information recording medium | Ken Minemura | 2004-07-20 |
| 6703100 | Disk-like recording medium and method for producing the same | Ken Minemura, Yuji Akiyama, Toshiyuki Kashiwagi | 2004-03-09 |
| 6636476 | Optical recording medium with a substrate of two different resin layers | Yuji Akiyama, Toshiyuki Kashiwagi | 2003-10-21 |
| 6596365 | Optical recording medium and method for producing the same | — | 2003-07-22 |
| 6503974 | Vibration-damping thermoplastic resin composition and molded article therefrom | Satoshi Ogasawara | 2003-01-07 |
| 6302674 | Optical disc molding apparatus | Yuji Akiyama, Ken Minemura | 2001-10-16 |
| 6210609 | Method of manufacturing optical recording medium | Minoru Takeda, Toshiyuki Kashiwagi | 2001-04-03 |
| 6201783 | Optical recording medium having substrate of dual transparent layers | Masanobu Yamamoto, Toshiyuki Kashiwagi, Yuji Akiyama | 2001-03-13 |
| 6142761 | Optical disc molding apparatus | Yuji Akiyama, Ken Minemura | 2000-11-07 |
| 5999513 | Optical disc substrate having relatively thicker central supporting portion and relatively thinner recording portion | Masanobu Yamamoto | 1999-12-07 |
| 5852329 | Optical disc molding device and molding method for optical disc | Toshiyuki Kashiwagi, Asao Kurosu, Yuji Akiyama, Shinsuke Kishi | 1998-12-22 |
| 5464339 | Molding dye for disk substrate | Takashi Segawa, Moriyoshi Kaneko, Kazuki Miyairi, Kazutoshi Takayama | 1995-11-07 |
| 4931313 | Method of forming a protective film for an optical recording medium | Hirotsugu Suzuki, Tokihiro Nishihara | 1990-06-05 |
| 4510279 | Methacrylate resin composition for optical information recording medium | Masaaki Kishimura | 1985-04-09 |