Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7157162 | Magnetic recording medium and magnetic recording and reproducing apparatus | Kazusuke Yamanaka, Tomoo Yamamoto, Yuzuru Hosoe, Nobuyuki Inaba, Masaaki Futamoto +3 more | 2007-01-02 |
| 6846577 | Magnetic recording medium possessing a fluctuation field of not less than 30 Oe | Kazusuke Yamanaka, Tomoo Yamamoto, Yuzuru Hosoe, Nobuyuki Inaba, Masaaki Futamoto +3 more | 2005-01-25 |
| 6613428 | Magnetic recording medium and magnetic recording and reproducing apparatus wherein the magnetic layer has a fluctuation of field; A or Hf of not less than 30 Oersteds | Kazusuke Yamanaka, Tomoo Yamamoto, Yuzuru Hosoe, Nobuyuki Inaba, Masaaki Futamoto +3 more | 2003-09-02 |
| 6310748 | Magnetic thin film magnetic recording medium | Kazusuke Yamanaka, Tomoo Yamamoto, Yuzuru Hosoe, Nobuyuki Inaba, Masaaki Futamoto +3 more | 2001-10-30 |
| 5180608 | Process for producing a rigid magnetic disk by longitudinally generating standing waves or interference waves in an undried applied magnetic paint | Katsuyoshi Chiba, Masayuki Katsumoto, Hajime Fukke, Heigo Ishihara, Iwao Matsuyama +3 more | 1993-01-19 |
| 5180616 | Hard disk magnetic recording medium comprising magnetic powder and a binder and having a specified magnetic layer thickness and surface roughness | Hajime Fukke, Motoo Akagi, Iwao Matsuyama, Masayuki Katsumoto, Hitoshi Inoue +1 more | 1993-01-19 |
| 5034243 | Method for magnetic orientation of magnetic recording medium using Meissner effect of high Tc superconductor | Katsuyoshi Chiba, Masayuki Katsumoto, Heigo Ishihara, Naoki Kodama, Hajime Fukke +2 more | 1991-07-23 |
| 5028496 | Magnetic coated recording medium and method of manfacturing the same | Hajime Fukke, Katsuyoshi Chiba, Iwao Matsuyama | 1991-07-02 |
| 4722869 | Magnetic recording medium | Yukio Honda, Masaaki Futamoto, Kazuetsu Yoshida | 1988-02-02 |
| 4707756 | Perpendicular magnetic recording medium | Masaaki Futamoto, Yukio Honda, Kazuetsu Yoshida | 1987-11-17 |
| 4631612 | Magnetic recording and reproducing system | Kazuo Shiiki, Yoshihiro Shiroishi, Isamu Yuito, Kiminari Shinagawa, Hideo Fujiwara +1 more | 1986-12-23 |
| 4621030 | Perpendicular magnetic recording medium and manufacturing method thereof | Hideo Fujiwara, Sadao Hishiyama, Kazuo Shiiki | 1986-11-04 |
| 4576876 | Magnetic recording medium | Kazuo Shiiki, Yoshihiro Shiroishi, Osamu Kitakami | 1986-03-18 |
| 4544591 | Perpendicular magnetic recording medium | Sadao Hishiyama, Masahiro Kitada, Noboru Shimizu, Hideo Tanabe, Hideo Fujiwara | 1985-10-01 |