Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6187724 | Lubricant composition and magnetic recording medium using the same | Koji Kobayashi, Hiromichi Kanazawa, Takahiro Hayashi, Takehiko Iritani | 2001-02-13 |
| 6042938 | Magnetic recording medium | Masahide Kohno, Shinji Miyazaki | 2000-03-28 |
| 6040052 | Magnetic recording medium | Hiromichi Kanazawa, Kunihiro Ueda, Katsuaki Yanagiuchi, Masahide Kohno | 2000-03-21 |
| 5792548 | Magnetic recording medium having a magnetic layer and an intermediate layer of specified composition | Takayoshi Kuwajima, Yuko Motegi | 1998-08-11 |
| 5698286 | Magnetic recording medium | Yasufumi Takasugi, Tsutomu Aoyama, Akira Saitoh, Yuko Motegi, Takayoshi Kuwajima | 1997-12-16 |
| 5443913 | Magnetic recording medium | Masahide Kohno, Kazuhiro Kuroda, Yasushi Ishikawa, Hideki Sasaki, Yasufumi Takasugi +1 more | 1995-08-22 |
| 5374478 | Magnetic recording medium having a magnetic layer comprising magnetic powder, binder, and a single carbon black having a specified narrow particle size distribution | Yousuke Hitomi | 1994-12-20 |
| 4759954 | Magnetic recording medium and preparation | Yuichi Kubota, Yasufumi Takasugi, Yousuke Hitomi, Fuminori Tokuda | 1988-07-26 |