Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9156128 | Burnishing method and burnishing apparatus | — | 2015-10-13 |
| 8968484 | Lifting and drying device and method of manufacturing magnetic recording medium substrate or magnetic recording medium using the same | Ryo Tanaka, Norio Oshima | 2015-03-03 |
| 8512100 | Abrasive tape, method for producing abrasive tape, and varnishing process | Kazuya Niwa | 2013-08-20 |
| 8398870 | Method for manufacturing perpendicular magnetic recording medium | — | 2013-03-19 |
| 8012613 | Magnetic recording medium, process for producing same, and magnetic recording reproducing apparatus | Migaku Takahashi, Shin Saito, Tomoyuki Maeda, Akihiko Takeo, Yuzo Sasaki | 2011-09-06 |
| 7220447 | Magnetic recording medium, process for producing the same, and magnetic recording and reproducing apparatus | Masato Fukushima, Yukihisa Matsumura | 2007-05-22 |
| 6844046 | Magnetic recording medium, production process thereof, magnetic recording and reproducing apparatus, and sputtering target | Akira Sakawaki, Masato Kokubu, Hiroshi Sakai | 2005-01-18 |
| 6821653 | Magnetic recording medium, process for producing the same, and magnetic recording and reproducing apparatus | Masato Fukushima, Yukihisa Matsumura | 2004-11-23 |
| 6582758 | Process of producing a magnetic recording medium | Akira Sakawaki, Masato Kokubu, Hiroshi Sakai | 2003-06-24 |
| 6468602 | Method of manufacturing a magnetic recording medium | Hiroshi Sakai, Mikio Suzuki, Kazunori Ohnami | 2002-10-22 |
| 6316062 | Magnetic recording medium and method of producing the same | Kazuo Kobayashi, Hiroshi Sakai, Mikio Suzuki, Kenichi Yoneyama, Kazunori Ohnami | 2001-11-13 |
| 5684099 | Propylene block copolymer, process for producing the same, and resin composition comprising the same | Kazuyuki Watanabe, Hisayoshi Yanagihara | 1997-11-04 |