Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8039045 | Method of manufacturing a disk substrate for a magnetic recording medium | Akira Iso, Kazuhito Higuchi, Hajime Kurihara, Hiroyuki Uwazumi | 2011-10-18 |
| 7622205 | Disk substrate for a perpendicular magnetic recording medium and a perpendicular magnetic recording medium using the substrate | Hiroyuki Uwazumi, Kengo Kainuma, Kazuhito Higuchi, Akira Iso, Hajime Kurihara | 2009-11-24 |
| 7514118 | Method of electroless plating on a glass substrate and method of manufacturing a magnetic recording medium using the method of electroless plating | Akira Iso | 2009-04-07 |
| 7358315 | Thermoplastic allyloxymethylstyrene-based resin | Toshiyuki Kodaira | 2008-04-15 |
| 6939595 | Magnetic recording medium substrate using thermoplastic allyloxymethylstyrene resin, magnetic recording medium using the substrate, and method of manufacturing the magnetic recording medium | Kouichi Tsuda, Ryoji Kobayashi, Syoji Sakaguchi | 2005-09-06 |
| 6730403 | Magnetic recording medium and method for manufacturing the same | Shinji Shirai, Takahiro Tokumoto | 2004-05-04 |
| 6645634 | Magnetic recording medium and method for manufacturing same | Shinji Shirai | 2003-11-11 |
| 6096694 | Liquid lubricant, magnetic recording medium using the same, and method for manufacturing magnetic recording medium | Shinji Shirai, Yoshimasa Hattori | 2000-08-01 |
| 5874570 | Titanyloxyphthalocyanine crystals, and method of preparing the same | Shinichi Tamura, Naoki Itoh, Kazumi Egota, Kenichi Ohkura | 1999-02-23 |
| 5824800 | Process for preparing a metal-free phthalocyanine | Shinichi Tamura, Seishi Terasaki, Tadashi Mimura, Teruaki Kobayashi | 1998-10-20 |
| 5736282 | Electrophotographic photoreceptors including titanyloxyphthalocyanine crystals | Shinichi Tamura, Naoki Itoh, Kazumi Egota, Kenichi Ohkura | 1998-04-07 |
| 5614314 | Magnetic recording medium having an enhanced diamond bonding ratio and a method for the manufacture thereof | Yoshiaki Itoh, Michio Osawa, Yoshiharu Kashiwakura, Michinori Nishimura, Kazuo Nimura | 1997-03-25 |
| 5591555 | Electrophotographic photoconductor including a metal-free phthalocyanine | Shinichi Tamura, Seishi Terasaki, Tadashi Mimura, Teruaki Kobayashi | 1997-01-07 |
| 5585483 | Metal-free phythalocyanine, process for preparing the same, and electrophotographic photoconductor using the same | Shinichi Tamura, Seishi Terasaki, Tadashi Mimura, Teruaki Kobayashi | 1996-12-17 |
| 5144134 | Method for determining the quality of a lubricant layer on a magnetic recording medium by detecting electrons at varying drawing angles | Katsumi Onodera | 1992-09-01 |