Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5247415 | Magnetic head having main and auxiliary magnetic paths | Takeo Yamashita, Toshio Kobayashi, Ryoichi Nakatani, Shigekazu Otomo | 1993-09-21 |
| 5159505 | Rotating drum having a center of gravity in registry with an axis of rotation | Yasuaki Horiuchi, Kuninori Imai, Takeshi Tajima, Takeo Yamashita, Shigekazu Otomo | 1992-10-27 |
| 5157569 | Thin film magnetic head | Kenkichi Inada, Ikuo Shinta, Sigeo Imai, Souzou Sasajima | 1992-10-20 |
| 5147732 | Longitudinal magnetic recording media and magnetic memory units | Yoshihiro Shiroishi, Takeo Yamashita, Sadao Hishiyama, Yoshibumi Matsuda, Hiroyuki Suzuki +4 more | 1992-09-15 |
| 4972285 | Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head made from the same | Shigekazu Otomo, Hideo Fujiwara, Shinji Takayama, Takeo Yamashita, Noritoshi Saito +1 more | 1990-11-20 |
| 4943879 | Thin film magnetic head including magnetic layers having high saturation magnetic flux density and metal film for avoiding deterioration during manufacturing | Hisashi Takano, Yoshihiro Hamakawa, Kazuo Shiiki, Shigekazu Otomo | 1990-07-24 |
| 4935311 | Magnetic multilayered film and magnetic head using the same | Ryoichi Nakatani, Toshio Kobayashi, Shigekazu Otomo, Noritoshi Saito | 1990-06-19 |
| 4935314 | Ferromagnetic film and magnetic head using the same | Toshio Kobayashi, Ryoichi Nakatani, Shigekazu Otomo | 1990-06-19 |
| 4920013 | Magnetic Multilayer structure | Toshio Kobayashi, Shigekazu Otomo, Ryoichi Nakatani | 1990-04-24 |
| 4894098 | Process for preparing magnetic layer and magnetic head prepared using the same | Shigekazu Otomo, Ryo Imura, Ryo Suzuki, Yutaka Sugita | 1990-01-16 |
| 4891278 | Ferrromagnetic thin film and magnetic head using it | Shigekazu Otomo, Ryoichi Nakatani, Noritoshi Saito, Toshio Kobayashi, Masahiko Fujishiro | 1990-01-02 |
| 4858049 | Magnetic film and magnetic head using the same | Toshio Kobayashi, Shigekazu Otomo, Ryoichi Nakatani | 1989-08-15 |
| 4847715 | Magnetic head having short distance between gaps for recording reproducing and erasing | Shigekazu Otomo, Takeo Yamashita, Noritoshi Saito | 1989-07-11 |
| 4814921 | Multilayered magnetic films and thin-film magnetic heads using the same as a pole | Yoshihiro Hamakawa, Kazuo Shiiki, Yoshihiro Shiroishi, Isamu Yuitoo, Hitoshi Numasaka +2 more | 1989-03-21 |
| 4803338 | Magnetic head having improved track width narrowing grooves | Shigekazu Otomo, Takeo Yamashita, Hideo Zama, Juichi Morikawa | 1989-02-07 |
| 4774616 | Magnetic head having an integrated recording and playback head and an erasure head | Hideo Fujiwara, Shigekazu Otomo, Takeo Yamashita, Noritoshi Saito, Mitsuhiro Kudo | 1988-09-27 |
| 4772976 | Process for preparing magnetic layer and magnetic head prepared using the same | Shigekazu Otomo, Ryo Imura, Ryo Suzuki, Yutaka Sugita | 1988-09-20 |
| 4769729 | Magnetic head having ferromagnetic amorphous alloy multi-layered film | Shigekazu Otomo, Takeo Yamashita, Noritoshi Saito | 1988-09-06 |
| 4766039 | Magnetic head made from amorphous magnetic film | Shigekazu Otomo, Noritoshi Saito, Takeo Yamashita, Kazuo Shiiki, Yoshihiro Hamakawa | 1988-08-23 |
| 4762755 | Ferromagnetic material and a magnetic head using the same material | Kazuo Shiiki, Yoshihiro Shiroishi, Hitoshi Nakamura, Yoshihiro Hamakawa, Noritoshi Saito +3 more | 1988-08-09 |
| 4748089 | Multilayered ferromagnetic amorphous alloy film and magnetic head employing the same | Kazuo Shiiki, Shigekazu Otomo, Yoshihiro Shiroishi, Takeo Yamashita, Noritoshi Saito +2 more | 1988-05-31 |
| 4745507 | Composite type magnetic head with non-magnetic member in coil mounting portion | Shigekazu Otomo, Takeo Yamashita, Juichi Morikawa, Hideo Fujiwara, Osamu Inagoya +2 more | 1988-05-17 |
| 4731683 | Magnetic recording and reproducing system with composite magnetic head | Shigekazu Otomo, Takeo Yamashita, Juichi Morikawa, Takayuki Kobayashi, Mitsuhiro Kudo | 1988-03-15 |
| 4701819 | Magnetic head to effect high density magnetic recording | Osamu Inagoya, Hideo Fujiwara, Takeshi Tottori, Minoru Yamano, Shigekazu Otomo +5 more | 1987-10-20 |
| 4656547 | Composite type magnetic head for recording and reproducing high frequency signals | Hideo Fujiwara, Shigekazu Otomo, Takeo Yamashita, Shinji Takayama, Noritoshi Saito +1 more | 1987-04-07 |