Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5626796 | Light sensitive composition for black matrix, substrate for color filter, and liquid crystal display | Naoyuki Tsujimura, Toshihiro Ueki, Kesanao Kobayashi | 1997-05-06 |
| 5368949 | Magnetic recording medium having specific subbing layers and process for recovery and processing thereof | Hiroshi Hashimoto, Kazuko Hanai, Keiichi Suzuki | 1994-11-29 |
| 5356726 | Magnetic recording medium comprising a magnetic layer having ferromagnetic powder, a specified binder and a lubricant composition which includes a specified tertiary branched chain fatty acid ester | Yasuo Nishikawa, Kazuko Hanai, Yuzo Higaki, Tatsuya Yamada | 1994-10-18 |
| 5336561 | Magnetic recording medium | Hiroshi Hashimoto, Kenichi Masuyama, Yasuyuki Tanaka, Hiroyuki Kobayashi | 1994-08-09 |
| 5270109 | Magnetic recording medium having a magnetic layer comprising ferromagnetic powder, a binder and a specified organosilicon lubricant compound | Yasuo Nishikawa, Kazuaki Taga, Masatoshi Takahashi | 1993-12-14 |
| 5254404 | Magnetic recording medium comprising ferromagnetic particles having crystallite size of less than 450 angstroms and a specified polyurethane binder | Hiroshi Hashimoto | 1993-10-19 |
| 5244736 | Magnetic recording medium having multiple magnetic layers with specified compositions | Hiroshi Hashimoto, Hideomi Watanabe, Kazuko Hanai, Akihiro Matsufuji | 1993-09-14 |
| 5165999 | Magnetic recording medium containing a polyurethane resin having a modified amine acid incorporated into the resin | Hiroshi Hashimoto | 1992-11-24 |
| 5164259 | Magnetic recording medium having a specified fatty acid hydroxylaluminum salt as a lubricant contained in or on the magnetic layer | Toshio Ishida, Yasuo Nishikawa | 1992-11-17 |
| 5153053 | Magnetic recording medium comprising a lower magnetic layer containing an amine modified vinyl chloride copolymer and an upper magnetic layer containing a vinyl chloride copolymer with a polar group | Hiroshi Hashimoto, Masatoshi Takahashi | 1992-10-06 |
| 5139866 | Magnetic recording medium | Hiroaki Araki, Kenichi Yoden | 1992-08-18 |
| 5132179 | Magnetic recording medium comprising plural magnetic layers | Hiroshi Hashimoto | 1992-07-21 |
| 5073439 | Magnetic recording medium comprising a vinyl chloride based resin group containing an epoxy group or a polar or both and further a polyurethane resin containing three hydroxyl groups and one polar group | Hiroshi Hashimoto, Yuuichirou Murayama | 1991-12-17 |
| 5063119 | Magnetic recording medium comprising a fluorine containing oligomer surfactant in or on the magnetic layer | Toshio Ishida, Yasuo Nishikawa | 1991-11-05 |
| 4861674 | Magnetic recording medium | Hiroo Inaba, Nobuyuki Yamamoto, Noburo Hibino, Kenzo Iwamoto | 1989-08-29 |
| 4612235 | Magnetic recording medium | Masaaki Fujiyama, Toshimitu Okutu, Takahito Miyoshi | 1986-09-16 |
| 4428974 | Process for producing magnetic recording material | Tsutomu Okita, Kyoichi Naruo | 1984-01-31 |
| 4222777 | Process for forming color images | Yosuke Nakajima, Shinzo Kishimoto, Yoshio Seoka, Masayoshi Kawai, Naoyoshi Chino +2 more | 1980-09-16 |