Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8147924 | Apparatus for manufacturing magnetic recording disk, and in-line type substrate processing apparatus | Naoki Watanabe, Nobuyoshi Watanabe, Shinji Furukawa, Hiromi Sasaki, Osamu Watabe | 2012-04-03 |
| 7824497 | Apparatus for manufacturing magnetic recording disk, and in-line type substrate processing apparatus | Naoki Watanabe, Nobuyoshi Watanabe, Shinji Furukawa, Hiromi Sasaki, Osamu Watabe | 2010-11-02 |
| 6572934 | Method for manufacturing a magnetic recording disk | Naoki Watanabe, Nobuyoshi Watanabe, Shinji Furukawa, Hiromi Sasaki, Osamu Watabe | 2003-06-03 |
| 6074284 | Combination electrolytic polishing and abrasive super-finishing method | Kohichi Kawachi | 2000-06-13 |
| 5432045 | Photo-solidification modeling apparatus and photo-solidification modeling method having an improved recoating process | Hidetaka Narukawa, Naoichiro Saito, Seiji Hayano, Hatsumi Naruo, Ichitaro Sarada | 1995-07-11 |
| 5412925 | Method and apparatus for inserting a core packaging layer into a clean environment | Toshiaki Kimura | 1995-05-09 |
| 5065547 | Surface processing machine for hard disks and the like | Tatsuo Shimizu, Kazunori Ozawa, Kenji Yazawa | 1991-11-19 |
| 5065548 | Surface treating tape cartridge and surface treating machine | Tatsuo Shimizu, Kazunori Ozawa, Kenji Yazawa | 1991-11-19 |