Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5856281 | Bearing and manufacturing method of bearing, and magnetic disk device with bearing containing a lubricating grease | Masaki Otsuka, Mitsuhiko Oguchi, Kazuhisa Murakami, Nobuyuki Ishii, Masayuki Katsumoto +2 more | 1999-01-05 |
| 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, Yasutaro Uesaka, Hajime Fukke, Heigo Ishihara +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, Masayuki Katsumoto, Hitoshi Inoue, Naoki Kodama +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, Yasutaro Uesaka, Heigo Ishihara, Naoki Kodama +2 more | 1991-07-23 |
| 5028496 | Magnetic coated recording medium and method of manfacturing the same | Yasutaro Uesaka, Hajime Fukke, Katsuyoshi Chiba | 1991-07-02 |
| 4426216 | Process for producing optical glass | Shin Satoh, Kenzo Susa, Tsuneo Suganuma | 1984-01-17 |
| 4324576 | Method for producing optical glass | Kenzo Susa, Shin Satoh, Tsuneo Suganuma | 1982-04-13 |
| 4323381 | Method for producing mother rods for optical fibers | Kenzo Susa, Tsuneo Suganuma, Shin Satoh, Toshio Katsuyama, Hidehito Obayashi | 1982-04-06 |
| 4317668 | Method for producing silica glass | Kenzo Susa, Shin Satoh, Tsuneo Suganuma | 1982-03-02 |
| 4259101 | Method for producing optical fiber preform | Yasuo Tsukuda, Katsuyuki Imoto, Kenzo Susa, Tsuneo Suganuma | 1981-03-31 |