Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881144 | Thin film magnetic head | Isamu Yuito, Eijin Moriwaki, Yoshihiro Hamakawa, Hisashi Takano | 1989-11-14 |
| RE33022 | Ferromagnetic amorphous alloy | Shinji Takayama, Yasuo Tsukuda, Shigekazu Otomo, Mitsuhiro Kudo, Yasunobu Ogata +1 more | 1989-08-15 |
| 4814921 | Multilayered magnetic films and thin-film magnetic heads using the same as a pole | Yoshihiro Hamakawa, Yoshihiro Shiroishi, Isamu Yuitoo, Hitoshi Numasaka, Noriyuki Kumasaka +2 more | 1989-03-21 |
| 4766039 | Magnetic head made from amorphous magnetic film | Shigekazu Otomo, Noriyuki Kumasaka, Noritoshi Saito, Takeo Yamashita, Yoshihiro Hamakawa | 1988-08-23 |
| 4762755 | Ferromagnetic material and a magnetic head using the same material | Noriyuki Kumasaka, Yoshihiro Shiroishi, Hitoshi Nakamura, Yoshihiro Hamakawa, Noritoshi Saito +3 more | 1988-08-09 |
| 4760481 | Thin film magnetic head having an improved coil | Isamu Yuito, Eijin Moriwaki, Keiko Shiokawa, Yoshihiro Hamakawa, Saburo Suzuki +1 more | 1988-07-26 |
| 4748089 | Multilayered ferromagnetic amorphous alloy film and magnetic head employing the same | Noriyuki Kumasaka, Shigekazu Otomo, Yoshihiro Shiroishi, Takeo Yamashita, Noritoshi Saito +2 more | 1988-05-31 |
| 4743491 | Perpendicular magnetic recording medium and fabrication method therefor | Seiichi Asada, Hiroyuki Suzuki, Toshio Niihara, Kazuetsu Yoshida, Masaaki Futamoto +2 more | 1988-05-10 |
| 4651248 | Thin-film magnetic head | Yoshihiro Shiroishi, Isamu Yuito, Kiminari Shinagawa, Hideo Fujiwara | 1987-03-17 |
| 4631612 | Magnetic recording and reproducing system | Yoshihiro Shiroishi, Isamu Yuito, Kiminari Shinagawa, Yasutaro Uesaka, Hideo Fujiwara +1 more | 1986-12-23 |
| 4621030 | Perpendicular magnetic recording medium and manufacturing method thereof | Yasutaro Uesaka, Hideo Fujiwara, Sadao Hishiyama | 1986-11-04 |
| 4576876 | Magnetic recording medium | Yoshihiro Shiroishi, Osamu Kitakami, Yasutaro Uesaka | 1986-03-18 |
| 4539616 | Thin film magnetic head and fabricating method thereof | Isamu Yuito, Atsushi Saiki, Yoshio Homma, Noriyuki Kumasaka, Yoshihiro Shiroishi +1 more | 1985-09-03 |
| 4420348 | Amorphous alloy for magnetic head core | Shigekazu Otomo, Mitsuhiro Kudo, Mitsuo Abe | 1983-12-13 |
| 4411716 | Amorphous alloys for magnetic head core and video magnetic head using same | Shigekazu Otomo, Mitsuhiro Kudo, Takeshi Kimura, Noriyuki Kumasaka, Hideo Fujiwara | 1983-10-25 |
| 4306908 | Ferromagnetic amorphous alloy | Shinji Takayama, Yasuo Tsukuda, Shigekazu Otomo, Mitsuhiro Kudo, Yasunobu Ogata +1 more | 1981-12-22 |