Issued Patents All Time
Showing 51–75 of 88 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816341 | Magnetic recording medium | Masatoshi Nakayama, Haruyuki Morita, Keiko Tsuchiya | 1989-03-28 |
| 4810524 | Inorganic powders with improved dispersibility | Masatoshi Nakayama, Haruyuki Morita | 1989-03-07 |
| 4794042 | Magnetic recording medium | Keiji Koga, Kazunori Tamazaki, Tsutomu Aoyama, Akio Watanabe | 1988-12-27 |
| 4772522 | Magnetic recording medium | Masaharu Nishimatsu, Kazunori Tamazaki, Keiji Koga, Toru Shimozawa | 1988-09-20 |
| 4759954 | Magnetic recording medium and preparation | Yasufumi Takasugi, Yousuke Hitomi, Tsunehiko Ikarashi, Fuminori Tokuda | 1988-07-26 |
| 4745031 | Magnetic recording medium | Masatoshi Nakayama, Haruyuki Morita, Keiko Tsuchiya | 1988-05-17 |
| 4741977 | Magnetic sheet | Keiji Koga, Keiko Tsuchiya, Kazunori Tamazaki, Tsutomu Aoyama | 1988-05-03 |
| 4734810 | Magnetic recording medium comprising protrusion on its surface and a plasma treated substrate and recording/reproducing method therefor | Masatoshi Nakayama, Kunihiro Ueda | 1988-03-29 |
| 4708909 | Radiation-curable, magnetic coating material and magnetic recording medium using the same | Akira Ohtsuki, Ryozo Konno, Nobumori Kanno, Makio Sugai, Takashi Mihoya +4 more | 1987-11-24 |
| 4699847 | Magnetic recording medium | Masatoshi Nakayama, Haruyuki Morita, Keiko Tsuchiya | 1987-10-13 |
| 4678708 | Magnetic recording medium | Shigeru Shimada, Masaharu Nishimatsu, Hiroyuki Arioka | 1987-07-07 |
| 4670340 | Magnetic recording medium and method | Yukihiro Isobe, Kazushi Tanaka, Masaharu Nishimatsu, Osamu Shinoura | 1987-06-02 |
| 4637963 | Magnetic recording medium and method for making | Masaharu Nishimatsu, Toshiaki Ide, Yoshiaki Saito | 1987-01-20 |
| 4632866 | Magnetic recording medium | Akio Watanabe | 1986-12-30 |
| 4628009 | Magnetic recording medium | Masaharu Nishimatsu, Toshiaki Ide, Yoshiaki Saito | 1986-12-09 |
| 4619861 | Magnetic powders with improved dispersibility | Masatoshi Nakayama, Haruyuki Morita | 1986-10-28 |
| 4618535 | Magnetic recording medium | Masaharu Nishimatsu, Toshiaki Ide, Hiroyuki Arioka | 1986-10-21 |
| 4614687 | Magnetic recording medium | Masaharu Nishimatsu, Toshiaki Ide, Yoshiaki Saito | 1986-09-30 |
| 4603081 | Magnetic recording medium | Shigeru Shimada, Masaharu Nishimatsu | 1986-07-29 |
| 4601947 | Magnetic recording medium | Shigeru Shimada, Masaharu Nishimatsu | 1986-07-22 |
| 4599266 | Magnetic recording medium | Masatoshi Nakayama, Haruyuki Morita, Yasumichi Tokuoka, Toshiaki Izumi, Kazumasa Fukuda | 1986-07-08 |
| 4596747 | Magnetic recording medium | Masaharu Nishimatsu, Toshiaki Ide, Yoshiaki Saito, Shigeru Shimada | 1986-06-24 |
| 4592942 | Magnetic recording medium | Masaharu Nishimatsu, Toshiaki Ide, Hiroyuki Arioka | 1986-06-03 |
| 4591528 | Magnetic recording medium | Masaharu Nishimatsu, Toshiaki Ide, Yoshiaki Saito, Hiroyuki Arioka | 1986-05-27 |
| 4587150 | Magnetic recording medium | Masaharu Nishimatsu, Toshiaki Ide, Hiroyuki Arioka | 1986-05-06 |