Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5030521 | Magnetic recording medium using a fatty acid ester lubricant wherein the alcohol component is branched at the number one carbon position | Yasuo Nishikawa, Takao Ohya | 1991-07-09 |
| 4837081 | Magnetic recording medium | Yasuyuki Yamada, Tsutomu Okita, Nobuo Tsuji | 1989-06-06 |
| 4798755 | Magnetic recording medium | Yasuyuki Yamada | 1989-01-17 |
| 4784907 | Magnetic recording medium | Akihiro Matsufuji, Akira Kasuga, Shigeo Komine, Yasuyuki Yamada | 1988-11-15 |
| 4784914 | Magnetic recording medium | Akihiro Matsufuji, Akira Kasuga, Shigeo Komine, Yasuyuki Yamada | 1988-11-15 |
| 4687704 | Magnetic recording medium | Takahito Miyoshi, Akihiro Matsufuji, Nobuyuki Yamamoto, Masaaki Fujiyama | 1987-08-18 |
| 4687705 | Magnetic recording medium | Akira Kasuga, Akihiro Matsufuji, Takeshi Kakuta | 1987-08-18 |
| 4555431 | Magnetic recording medium | — | 1985-11-26 |
| 4537833 | Magnetic recording medium | Akira Kasuga, Nobuyuki Yamamoto | 1985-08-27 |
| 4496626 | Magnetic recording medium | Akira Kasuga, Noburo Hibino | 1985-01-29 |
| 4475946 | Ferromagnetic metal particles of iron alloyed with Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Si, P, Mo, Sn, Sb and Ag coated with mono- or dialkoxysilanes | Akihiro Matsufuji, Shizuo Umemura, Masashi Aonuma, Tatsuji Kitamoto | 1984-10-09 |
| 4437882 | Ferromagnetic powder treated with an organic silane compound | Shizuo Umemura, Akihiro Matsufuji, Masashi Aonuma, Tatsuji Kitamoto | 1984-03-20 |
| 4431712 | Magnetic recording medium of ferromagnetic particles and binder | Akihiro Matsufuji, Akira Kasuga, Masashi Aonuma | 1984-02-14 |
| 4411956 | Magnetic recording medium | Akihiro Matsufuji, Akira Kasuga | 1983-10-25 |
| 4407901 | Magnetic recording medium | Akira Kasuga, Yasuyuki Yamada | 1983-10-04 |