Issued Patents All Time
Showing 25 most recent of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12308061 | Optical recording medium | Yoko Sekiguchi | 2025-05-20 |
| 12119034 | Method of producing multilayer optical recording medium and device for producing multilayer optical recording medium | Takeshi Yoshida | 2024-10-15 |
| 12112781 | Optical recording medium substrate, optical recording medium, and method of manufacturing optical recording medium substrate | Hiroshi Nakayama, Hiroyuki Takemoto, Minoru Matsuura | 2024-10-08 |
| 10950269 | Optical recording medium and method for manufacturing the same | Akio Koshita | 2021-03-16 |
| 9552839 | Optical recording medium and manufacturing method of the same | Takeshi Yoshida, Akio Koshita | 2017-01-24 |
| 9260563 | Process for production of polyamide | Katsumi Shinohara | 2016-02-16 |
| 8985987 | Apparatus for producing thermoplastic resin pellets | Katsumi Shinohara, Tomomichi Kanda, Hideyuki Kurose | 2015-03-24 |
| 8895690 | Copolymerized polyamide resin, method for producing same, resin composition, and molded article formed from the copolymerized polyamide resin or the resin composition | Tomomichi Kanda, Katsumi Shinohara, Hideyuki Kurose | 2014-11-25 |
| 8709569 | Optical recording medium, and method for producing optical recording medium | Hiroyuki Kawasaki, Takashi Ohgi, Yoshiaki Nakata | 2014-04-29 |
| 8297832 | Process for producing polyamide | Hideyuki Kurose, Katsumi Shinohara, Tomomichi Kanda | 2012-10-30 |
| 8246875 | Process and apparatus for producing thermoplastic resin pellets | Katsumi Shinohara, Tomomichi Kanda, Hideyuki Kurose | 2012-08-21 |
| 7807742 | Polyamide resin composition | Kazumi Tanaka | 2010-10-05 |
| 7536035 | Object velocity measuring apparatus and object velocity measuring method | — | 2009-05-19 |
| 7430304 | Object velocity measuring apparatus and object velocity measuring method | — | 2008-09-30 |
| 7224665 | Optical recording medium its manufacturing method and injection molding apparatus | Akio Koshita, Jun Nakano | 2007-05-29 |
| 7213253 | Optical recording medium and method of manufacturing the same | Jun Nakano | 2007-05-01 |
| 7138482 | Production method of polyamide | Kazumi Tanaka, Hideyuki Kurose, Takatoshi Shida | 2006-11-21 |
| 6938267 | Optical disc and fabrication method thereof | Yoshio Shirai, Mitsuhiro Abe, Toru Abiko | 2005-08-30 |
| 6889381 | Optical recording medium and method of manufacturing the same | Jun Nakano | 2005-05-03 |
| 6312781 | Disc-shaped recording medium with a protective film | — | 2001-11-06 |
| 6298143 | Moving target detecting system and moving target detecting method | Yasuhiro Taniguchi | 2001-10-02 |
| 6269070 | Optical disc having specified track pitch, push-pull signal, and cross-track signal | Yoshihiro Akimoto, Fuminori Takase, Masaki Kagawa, Nobuhiro Saito | 2001-07-31 |
| 6245404 | Optical Disc | Nobuhiro Saito, Yoshihiro Akimoto, Fuminori Takase | 2001-06-12 |
| 6210770 | Optical recording medium and method of manufacturing the same | Yoshihiro Akimoto, Fuminori Takase, Nobuhiro Saito, Noriko Kikuchi | 2001-04-03 |
| 6077349 | Method and apparatus for manufacturing disc-shaped recording medium | — | 2000-06-20 |