Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4752530 | Magnetic recording medium | Yasuyuki Yamada | 1988-06-21 |
| 4728577 | Magnetic recording medium | Yasuyuki Yamada | 1988-03-01 |
| 4713287 | Magnetic recording medium | Yasuo Nishikawa, Tsutomu Okita, Masahiro Niinomi, Kenji Yanagihara, Mituo Kimura | 1987-12-15 |
| 4711809 | Magnetic recording medium | Yasuo Nishikawa, Tsutomu Okita, Masahiro Niinomi, Kenji Yanagihara, Mituo Kimura | 1987-12-08 |
| 4707380 | Process for preparing a magnetic recording medium | Hiroshi Hashimoto, Tsutomu Okita | 1987-11-17 |
| 4699844 | Magnetic recording medium | Tsutomu Okita, Nobuo Tsuji | 1987-10-13 |
| 4693927 | Magnetic recording medium and process for producing the same | Yasuo Nishikawa, Tsutomu Okita, Kenji Yanagihara, Mituo Kimura, Masahiro Niinomi | 1987-09-15 |
| 4693799 | Process for producing plasma polymerized film | Kenji Yanagihara, Mituo Kimura, Masahiro Niinomi, Yasuo Nishikawa | 1987-09-15 |
| 4690870 | Magnetic recording medium | Tsutomu Okita, Nobuo Tsuji, Hiroshi Hashimoto | 1987-09-01 |
| 4672002 | Magnetic recording medium | Tsutomu Okita, Nobuo Tsuji | 1987-06-09 |
| 4664965 | Magnetic recording medium | Tsutomu Okita, Hiroshi Hashimoto | 1987-05-12 |
| 4664979 | Magnetic recording medium | Yasuyuki Yamada | 1987-05-12 |
| 4621027 | Magnetic recording medium | Tsutomu Okita, Nobuo Tsuji, Hiroshi Hashimoto, Teruo Nakagawa, Akiyoshi Hashimoto +1 more | 1986-11-04 |
| 4576866 | Magnetic recording material | Tsutomu Okita, Nobuo Tsuji | 1986-03-18 |
| 4548873 | Magnetic recording media with oxyfatty acid lubricant | Nobuyuki Yamamoto, Nobuo Tsuji, Yuzo Higaki, Toshihisa Okamura | 1985-10-22 |
| 4444838 | Magnetic recording medium | Yasuyuki Yamada, Goro Akashi, Nobuo Tsuji | 1984-04-24 |
| 4391851 | Process for producing a magnetic recording medium | Yasuyuki Yamada, Goro Akashi, Nobuo Tsuji, Masaaki Fujiyama | 1983-07-05 |