Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, Akira Ushimaru, Tatsuya Yamada | 1994-10-18 |
| 5063147 | Silver halide photographic light-sensitive material containing aliphatic carboxylic ester | Masakazu Yoneyama, Ryosuke Yamada, Yosuke Nishiura, Yukio Maekawa, Yoshiaki Iwamoto | 1991-11-05 |
| 4891161 | Cold rolling mill lubricant | Keiichi Tanikawa, Yuji Fujioka, Hiroyuki Goto | 1990-01-02 |
| 4889648 | Cold-rolling oils for steel plates | Hiroyuki Goto, Keiichi Tanikawa | 1989-12-26 |
| 4886612 | Lubricating oil | Hiroyuki Goto, Keiichi Tanikawa | 1989-12-12 |
| 4748090 | Magnetic recording media | Nobuyuki Yamamoto, Katsumi Ryoke, Nobuo Tsuji, Toshihisa Okamura | 1988-05-31 |
| 4554220 | Magnetic recording media | Nobuyuki Yamamoto, Katsumi Ryoke, Nobuo Tsuji, Toshihisa Okamura | 1985-11-19 |
| 4548873 | Magnetic recording media with oxyfatty acid lubricant | Nobuyuki Yamamoto, Yoshito Mukaida, Nobuo Tsuji, Toshihisa Okamura | 1985-10-22 |
| 4549009 | Polymeric glycol ester | Akitoshi Ukai | 1985-10-22 |
| 4428885 | Esterification reaction products | Osamu Yamada | 1984-01-31 |
| 4393044 | Steroid ester, and cosmetics and ointments containing the same | Atsunobu Takada | 1983-07-12 |
| 4389346 | Esterification reaction products and cosmetics containing same | Osamu Yamada, Akitoshi Ukai | 1983-06-21 |