Issued Patents All Time
Showing 1–25 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5348811 | Recording medium and method of performing recording/producing on the recording medium | Makoto Nagao | 1994-09-20 |
| 4748592 | Recording and reproducing method by a change in composition on a solid surface | Makoto Nagao, Akira Nahara | 1988-05-31 |
| 4678682 | Process for producing magnetic recording medium | Takamitsu Asai, Tatsuji Kitamoto, Hiroshi Chikamasa, Tsunehiko Sato | 1987-07-07 |
| 4666773 | Magnetic recording medium | Tatsuji Kitamoto | 1987-05-19 |
| 4636898 | Multichannel magnetic head | Masaki Suzuki | 1987-01-13 |
| 4588656 | Method of preparing a magnetic recording medium | Tatsuji Kitamoto, Ryuji Shirahata, Yasuyuki Yamada | 1986-05-13 |
| 4547393 | Method for preparing a magnetic recording medium | Takamitsu Asai, Tatsuji Kitamoto | 1985-10-15 |
| 4546725 | Apparatus for manufacturing magnetic recording media | Ryuji Shirahata, Masaru Sekine | 1985-10-15 |
| 4543275 | Method of forming thin vapor deposited film of organic material | Akira Nahara, Yoshihiro Arai | 1985-09-24 |
| 4526131 | Magnetic recording medium manufacturing apparatus | Ryuji Shirahata, Masaru Sekine | 1985-07-02 |
| 4520069 | Magnetic recording medium | Tatsuji Kitamoto | 1985-05-28 |
| 4515857 | Magnetic recording medium | Tatsuji Kitamoto | 1985-05-07 |
| 4513054 | Magnetic recording medium | Tatsuji Kitamoto | 1985-04-23 |
| 4503119 | Magnetic recording media | Ryuji Shirahata, Yasuyuki Yamada, Tatsuji Kitamoto | 1985-03-05 |
| 4501225 | Apparatus for making a magnetic recording medium | Makoto Nagao, Akira Nahara | 1985-02-26 |
| 4490762 | Cleaning tape | Wataru Ueno | 1984-12-25 |
| 4486496 | Magnetic recording medium | Shin-ichiro Dezawa, Tatsuji Kitamoto | 1984-12-04 |
| 4482578 | Method for preparing magnetic recording media | Tatsuji Kitamoto, Tsutomu Okita | 1984-11-13 |
| 4481253 | Process for preparing ferromagnetic metal powder and a magnetic recording medium including the powder | Akihiro Matsufuji, Shizuo Umemura, Akira Kasuga, Hajime Miyatuka | 1984-11-06 |
| 4476177 | Magnetic tape having a leader tape | Chiaki Mizuno | 1984-10-09 |
| 4454836 | Vacuum evaporating apparatus utilizing multiple rotatable cans | Ryuji Shirahata | 1984-06-19 |
| 4451501 | Method of making a magnetic recording medium | Makoto Nagao, Akira Nahara | 1984-05-29 |
| 4450199 | Magnetic recording medium | Eiichi Tadokoro, Masaaki Fujiyama | 1984-05-22 |
| 4444838 | Magnetic recording medium | Yasuyuki Yamada, Nobuo Tsuji, Yoshito Mukaida | 1984-04-24 |
| 4442171 | Magnetic recording medium | Masami Sato, Yasutoshi Okuzawa, Toshimitu Okutu | 1984-04-10 |