Issued Patents All Time
Showing 51–75 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5063119 | Magnetic recording medium comprising a fluorine containing oligomer surfactant in or on the magnetic layer | Toshio Ishida, Akira Ushimaru | 1991-11-05 |
| 5063105 | Magnetic recording medium in which certain physical properties of the magnetic layer and the backcoat layer are specified | Katsumi Ryoke, Masatoshi Takahashi | 1991-11-05 |
| 5061564 | Magnetic recording medium comprising a polar group containing resin or compound and a methyl iso ester lubricant prepared from a methyl iso acid or methyl iso alcohol or both | Takao Ohya, Jun Nakagawa, Satoru Hayakawa, Tsutomu Okita, Hiroshi Hashimoto | 1991-10-29 |
| 5053289 | Magnetic recording medium | Takashi Yoneyama, Kunihiko Sano | 1991-10-01 |
| 5051318 | Magnetic recording medium containing an organic silicone compound having branched chaw saturated hydrocarbon groups | Tsutomu Okita | 1991-09-24 |
| 5049448 | Magnetic recording medium containing an ester lubricant branched from the number 2 carbon position of the acid residue | Takao Ohya, Jun Nakagawa, Fusao Yamanaka, Toshio Kawamata, Tsutomu Okita +2 more | 1991-09-17 |
| 5045351 | Process for producing a magnetic recording medium | Tsutomu Okita, Hiroshi Hashimoto, Hideomi Watanabe | 1991-09-03 |
| 5041336 | Magnetic recording medium using a binder resin containing a polar group, and a lubricant system comprising two types of fatty acid esters and one fatty acid | Takao Ohya, Akihiro Matsufuji, Akira Kasuga, Kiyomi Ejiri | 1991-08-20 |
| 5030521 | Magnetic recording medium using a fatty acid ester lubricant wherein the alcohol component is branched at the number one carbon position | Takao Ohya, Hajime Miyatsuka | 1991-07-09 |
| 4937098 | Method for manufacturing a magnetic recording medium | Mikio Ohno, Masaaki Fujiyama, Tsutomu Okita | 1990-06-26 |
| 4906556 | Optical recording medium | Yonosuke Takahashi | 1990-03-06 |
| 4857402 | Magnetic recording medium | Hajime Miyazuka, Nobuo Tsuji | 1989-08-15 |
| 4847156 | Magnetic recording medium | Akihiro Matsufuji, Kenichi Masuyama, Yutaka Kakuishi | 1989-07-11 |
| 4840843 | Magnetic recording medium | Kunihiko Sano, Makoto Nagao, Akira Nahara, Hiroyuki Iwasaki | 1989-06-20 |
| 4830906 | Magnetic recording medium | Masakazu Yoneyama | 1989-05-16 |
| 4808202 | Adsorptive fiber sheet | Yasumasa Nakazima | 1989-02-28 |
| 4746559 | Magnetic recording medium | Tadashi Ishikuro | 1988-05-24 |
| 4725496 | Magnetic recording medium | Nobuo Tsuji | 1988-02-16 |
| 4713287 | Magnetic recording medium | Tsutomu Okita, Yoshito Mukaida, Masahiro Niinomi, Kenji Yanagihara, Mituo Kimura | 1987-12-15 |
| 4711809 | Magnetic recording medium | Tsutomu Okita, Yoshito Mukaida, Masahiro Niinomi, Kenji Yanagihara, Mituo Kimura | 1987-12-08 |
| 4693799 | Process for producing plasma polymerized film | Kenji Yanagihara, Mituo Kimura, Masahiro Niinomi, Yoshito Mukaida | 1987-09-15 |
| 4693927 | Magnetic recording medium and process for producing the same | Tsutomu Okita, Yoshito Mukaida, Kenji Yanagihara, Mituo Kimura, Masahiro Niinomi | 1987-09-15 |
| 4693929 | Magnetic recording medium | Katsumi Ryoke, Masatoshi Takahashi, Takashi Yoneyama, Eiichi Tadokoro | 1987-09-15 |
| 4654258 | Magnetic recording medium | Toshio Kawamata, Kazuhiko Morita | 1987-03-31 |
| 4629279 | Connector housing | — | 1986-12-16 |