Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5922483 | Magnetic recording medium | Masatoshi Takahashi, Naoto Murao, Nobuyoshi Asada | 1999-07-13 |
| 5728454 | Magnetic recording medium | Hiroo Inaba, Toshiharu Takeda | 1998-03-17 |
| 5631062 | Magnetic recording medium | Kenichi Masuyama, Hiroaki Takano, Kazuo Kato, Kazuko Hanai | 1997-05-20 |
| 5436055 | Magnetic recording medium and magnetic tape cassette mounted with the magnetic recording medium | Takeshi Kakuta, Shinji Saito, Kazuo Kato | 1995-07-25 |
| 5415933 | Magnetic recording medium containing a biaxially oriented multilayer support | Tadashi Ishiguro, Takeshi Kakuta, Kazuo Kato | 1995-05-16 |
| 4997696 | Magnetic recording medium | Ko Kamada, Takeshi Kakuta | 1991-03-05 |
| 4861674 | Magnetic recording medium | Hiroo Inaba, Akira Ushimaru, Nobuyuki Yamamoto, Kenzo Iwamoto | 1989-08-29 |
| 4781965 | Magnetic recording medium | Hiroshi Hashimoto, Tsutomu Okita | 1988-11-01 |
| 4780353 | Magnetic recording medium | Masatoshi Takahashi, Chiaki Mizuno, Hiroshi Ogawa, Yasuo Tamai | 1988-10-25 |
| 4743487 | Magnetic recording medium | Shinji Saito, Chiaki Mizuno, Hiroshi Ogawa, Yasuo Tamai | 1988-05-10 |
| 4673590 | Process for preparing a magnetic recording medium | Hiroshi Hashimoto, Tsutomu Okita | 1987-06-16 |
| 4663209 | Magnetic recording medium | Masashi Aonuma, Masaaki Suzuki, Satoshi Sakakibara, Koh Kamada | 1987-05-05 |
| 4661377 | Process for producing a magnetic recording medium having an improved dimensional stability | Kazuhiko Morita, Shigeo Komine, Akira Kasuga | 1987-04-28 |
| 4650720 | Magnetic recording medium | Nobutaka Yamaguchi, Takahito Miyoshi, Toshimitu Okutu, Eiichi Tadokoro, Masaaki Fujiyama | 1987-03-17 |
| 4619856 | Magnetic recording medium | Koh Kamada, Hiroshi Hashimoto, Tsutomu Okita | 1986-10-28 |
| 4496626 | Magnetic recording medium | Akira Kasuga, Hajime Miyatsuka | 1985-01-29 |
| 4481231 | Method for production of magnetic recording media | Hiroshi Hashimoto, Tsutomu Okita | 1984-11-06 |
| 4474832 | Magnetic recording media | Ryuji Shirahata, Masaru Sekine | 1984-10-02 |
| 4411958 | Magnetic recording medium | Masami Sato, Yasutoshi Okuzawa | 1983-10-25 |
| 4388368 | Magnetic recording media | Goro Akashi | 1983-06-14 |
| 4215030 | Photographic polyester film support | Tsutomu Okita, Masami Satou, Kazunobu Katoh, Hiroshi Sawaguchi | 1980-07-29 |
| 4191679 | Photographic polyester film support | Tsutomu Okita, Masami Satou, Kazunobu Katoh, Masatoshi Sugiyama | 1980-03-04 |