Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8854938 | Optical recording medium, manufacturing method for optical recording medium | Yoshihiro Akimoto, Kimihiro Saito, Akiya Saito | 2014-10-07 |
| 7962927 | Optical disk | Takeshi Yamasaki, Tomomi Yukumoto | 2011-06-14 |
| 7706240 | Optical disk and its manufacturing method | Toshiro Kinoshita, Akihiko Kobayashi, Noboru Sasaki, Makoto Arisawa, Hiroshi Iwase +5 more | 2010-04-27 |
| 7596077 | Optical disk | Takeshi Yamasaki, Tomomi Yukumoto | 2009-09-29 |
| 7480928 | Optical recording medium and method of producing the same | Takeshi Yamasaki, Tomomi Yukumoto | 2009-01-20 |
| 7295508 | Optical disk | Daisuke Ueda, Takeshi Yamasaki | 2007-11-13 |
| 7034319 | Electron beam irradiation apparatus, electron beam irradiation method, original disk, stamper, and recording medium | Yuichi Aki, Takao Kondo, Minoru Takeda, Masanobu Yamamoto, Shin Masuhara | 2006-04-25 |
| 7032043 | Keyboard storage device for a computer system | Naohiko Ichimura, Hirotaka Sugaya | 2006-04-18 |
| 6992889 | Retention module, heat sink and electronic device | Hirokatsu Katou | 2006-01-31 |
| 6986861 | Method of producing an optical recording medium | Takeshi Yamasaki, Tomomi Yukumoto | 2006-01-17 |
| 6867975 | Heat sink, fixing method thereof and electronic apparatus using heat sink | — | 2005-03-15 |
| 6707787 | Optical recording medium | Takeshi Yamasaki, Tomomi Yukumoto | 2004-03-16 |
| 6703100 | Disk-like recording medium and method for producing the same | Nobuyuki Arakawa, Ken Minemura, Yuji Akiyama | 2004-03-09 |
| 6663935 | Disk-like multilayer information recording medium and production method thereof | Takeshi Yamasaki, Motohiro Furuki, Tomomi Yukumoto | 2003-12-16 |
| 6636476 | Optical recording medium with a substrate of two different resin layers | Nobuyuki Arakawa, Yuji Akiyama | 2003-10-21 |
| 6613396 | Optical disc and method for manufacturing same | Masato Nishida, Tetsuhiro Sakamoto, Motohiro Furuki | 2003-09-02 |
| 6580681 | Optical disk with information signal representing a character, method and apparatus | — | 2003-06-17 |
| 6524418 | Method of production of multilayer optical recording medium | Takeshi Yamasaki, Tomomi Yukumoto, Yuji Akiyama, Eijiro Kikuno | 2003-02-25 |
| 6500511 | Optical disc recycling method and recycled optical disc | Hiroshi Ooki | 2002-12-31 |
| 6466538 | Optical recording medium having disconnected land and groove forming control portion | Shingo Imanishi, Masanobu Yamamoto | 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 | Masanobu Yamamoto, Shingo Imanishi | 2002-08-27 |
| 6440516 | Optical disc | Takeshi Yamasaki, Tomomi Yukumoto, Motohiro Furuki | 2002-08-27 |
| 6353592 | Optical recording medium and optical disk device | Tetsuhiro Sakamoto, Kiyoshi Ohsato | 2002-03-05 |
| 6349086 | Optical disc and method for manufacturing same | Masato Nishida, Tetsuhiro Sakamoto, Motohiro Furuki | 2002-02-19 |
| 6333914 | Optical recording medium and method of manufacturing same | Hiroshi Ohki | 2001-12-25 |