Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4557948 | Process for producing magnetic recording materials | Nobuyuki Yamamoto, Masao Yabe, Yasuo Nishikawa, Akio Yanai, Kyoichi Naruo | 1985-12-10 |
| 4546725 | Apparatus for manufacturing magnetic recording media | Masaru Sekine, Goro Akashi | 1985-10-15 |
| 4526131 | Magnetic recording medium manufacturing apparatus | Masaru Sekine, Goro Akashi | 1985-07-02 |
| 4511594 | System of manufacturing magnetic recording media | Akio Yanai | 1985-04-16 |
| 4503119 | Magnetic recording media | Yasuyuki Yamada, Tatsuji Kitamoto, Goro Akashi | 1985-03-05 |
| 4477489 | Method of making magnetic recording medium | Akio Yanai, Tatsuji Kitamoto | 1984-10-16 |
| 4474832 | Magnetic recording media | Masaru Sekine, Noburo Hibino | 1984-10-02 |
| 4454836 | Vacuum evaporating apparatus utilizing multiple rotatable cans | Goro Akashi | 1984-06-19 |
| 4448843 | Magnetic recording medium | Yasuyuki Yamada, Akio Yanai, Tatsuji Kitamoto | 1984-05-15 |
| 4446816 | Apparatus for manufacturing a magnetic recording medium | Tatsuji Kitamoto | 1984-05-08 |
| 4414271 | Magnetic recording medium and method of preparation thereof | Tatsuji Kitamoto, Yasuyuki Yamada, Goro Akashi | 1983-11-08 |
| 4412507 | Magnetic recording medium manufacturing device | Tatsuji Kitamoto | 1983-11-01 |
| 4410565 | Method of making a magnetic recording medium | Tatsuji Kitamoto, Yasuo Tamai | 1983-10-18 |
| 4403002 | Vacuum evaporating apparatus | Goro Akashi | 1983-09-06 |
| 4395439 | Method of manufacturing magnetic recording medium | Tatsuji Kitamoto | 1983-07-26 |
| 4354908 | Process for the production of magnetic recording members | Tatsuji Kitamoto, Yasuo Tamai, Masaaki Suzuki | 1982-10-19 |
| 4333985 | Magnetic recording medium | Akio Yanai, Tatsuji Kitamoto | 1982-06-08 |
| 4286299 | Magnetic head assembly for recording or reproducing vertically magnetized records | Tatsuji Kitamoto | 1981-08-25 |
| 4260466 | Method of producing magnetic recording medium | Tatsuji Kitamoto, Yasuyuki Yamada, Goro Akashi | 1981-04-07 |
| 4250225 | Process for the production of a magnetic recording medium | Tatsuji Kitamoto, Masaaki Suzuki, Hiroshi Amari | 1981-02-10 |
| 4226681 | Process for the production of a magnetic recording medium | Tatsuji Kitamoto | 1980-10-07 |