Issued Patents All Time
Showing 101–108 of 108 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7239483 | Magnetic disk with specified contact ratio [BH 1.0 nm] and circumferential texturing and magnetic disk apparatus equipped with magnetic disk | Koji Sonoda, Junya Kato, Yukihisa Matsumura | 2007-07-03 |
| 7220447 | Magnetic recording medium, process for producing the same, and magnetic recording and reproducing apparatus | Ryuji Sakaguchi, Yukihisa Matsumura | 2007-05-22 |
| 6821653 | Magnetic recording medium, process for producing the same, and magnetic recording and reproducing apparatus | Ryuji Sakaguchi, Yukihisa Matsumura | 2004-11-23 |
| 6818858 | Laser processing unit and processing apparatus comprising laser processing unit | Hisashi Yasoda | 2004-11-16 |
| 5914152 | Magnetic recording medium and process for making same | Daizo Endo, Shin-ichi Ogawa | 1999-06-22 |
| 5895793 | Fluorine-containing hydrocarbon composition | Kenrou Kitamura, Keiichi Ohnishi | 1999-04-20 |
| 5789455 | Fluorine-containing hydrocarbon composition | Kenrou Kitamura, Keiichi Ohnishi | 1998-08-04 |
| 5731070 | Magnetic recording medium comprising a substrate, magnetic layer, and under layers including a silicon layer and a layer diffused with silicon | Daizo Endo, Shin-ichi Ogawa | 1998-03-24 |