Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847156 | Magnetic recording medium | Yasuo Nishikawa, Kenichi Masuyama, Yutaka Kakuishi | 1989-07-11 |
| 4839225 | Magnetic recording medium | Shigeo Komine | 1989-06-13 |
| 4820581 | Magnetic recording medium | Shinji Saito, Hiroshi Ogawa, Yasuo Tamai | 1989-04-11 |
| 4801505 | Magnetic recording medium | Kiyomi Ejiri, Hiroaki Araki, Akira Kasuga | 1989-01-31 |
| 4784907 | Magnetic recording medium | Akira Kasuga, Shigeo Komine, Yasuyuki Yamada, Hajime Miyatsuka | 1988-11-15 |
| 4784914 | Magnetic recording medium | Akira Kasuga, Shigeo Komine, Yasuyuki Yamada, Hajime Miyatsuka | 1988-11-15 |
| 4729922 | Magnetic recording medium | Kiyomi Ejiri, Hideaki Kosha | 1988-03-08 |
| 4690863 | Magnetic recording media and process for producing same | Takahito Miyoshi, Masaaki Fujiyama, Nobuyuki Yamamoto | 1987-09-01 |
| 4687705 | Magnetic recording medium | Hajime Miyatsuka, Akira Kasuga, Takeshi Kakuta | 1987-08-18 |
| 4687704 | Magnetic recording medium | Takahito Miyoshi, Nobuyuki Yamamoto, Hajime Miyatsuka, Masaaki Fujiyama | 1987-08-18 |
| 4632868 | Magnetic recording media | Takahito Miyoshi, Masaaki Fujiyama | 1986-12-30 |
| 4571364 | Magnetic recording medium | Akira Kasuga, Yasuyuki Yamada, Nobuo Tsuji | 1986-02-18 |
| 4481253 | Process for preparing ferromagnetic metal powder and a magnetic recording medium including the powder | Shizuo Umemura, Akira Kasuga, Hajime Miyatuka, Goro Akashi | 1984-11-06 |
| 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 | Shizuo Umemura, Masashi Aonuma, Hajime Miyatsuka, Tatsuji Kitamoto | 1984-10-09 |
| 4465737 | Magnetic recording medium | Hajime Miyatuka, Akira Kasuga, Tsutomu Sugisaki | 1984-08-14 |
| 4444850 | Magnetic recording medium with titanate coupling agent | Hideomi Watanabe, Mashahi Aonuma | 1984-04-24 |
| 4437882 | Ferromagnetic powder treated with an organic silane compound | Shizuo Umemura, Masashi Aonuma, Tatsuji Kitamoto, Hajime Miyatsuka | 1984-03-20 |
| 4431712 | Magnetic recording medium of ferromagnetic particles and binder | Akira Kasuga, Hajime Miyatsuka, Masashi Aonuma | 1984-02-14 |
| 4411956 | Magnetic recording medium | Akira Kasuga, Hajime Miyatsuka | 1983-10-25 |
| 4399211 | Photopolymerizable compositions | Syunichi Kondo, Akira Umehara, Toshinao Ukai, Akira Sato | 1983-08-16 |
| 4379809 | Magnetic recording medium | Tadashi Ishiguro, Nobuo Tsuji | 1983-04-12 |
| 4367280 | Photopolymerizable composition | Syunichi Kondo, Akira Umehara | 1983-01-04 |
| 4290870 | Photopolymerizable compositions | Syunichi Kondoh, Akira Umehara | 1981-09-22 |
| 4259432 | Photopolymerizable compositions having combined photoinitiators | Syunichi Kondoh, Yuji Ohara, Akira Umehara | 1981-03-31 |
| 4224225 | 2-Arylnaphtho[1,8-BC]furan-5-ones | Yasuhiro Noguchi, Syunichi Kondo, Hisatake Ono, Toshio Uchida | 1980-09-23 |