NK

Nagatugu Koiso

HI Hitachi: 10 patents #4,206 of 28,497Top 15%
HG HGST: 1 patents #253 of 483Top 55%
📍 Tama, JP: #68 of 402 inventorsTop 20%
Overall (All Time): #470,455 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
7050253 Magnetic recording media and magnetic storage apparatus using the same Tetsuya Kanbe, Ichiro Tamai, Yuzuru Hosoe, Kiwamu Tanahashi, Yoshio Takahashi +2 more 2006-05-23
6574060 Magnetic storage apparatus Tetsuya Kanbe, Ichiro Tamai, Yuzuru Hosoe, Kiwamu Tanahashi, Yoshio Takahashi +2 more 2003-06-03
6221508 Magnetic recording media Tetsuya Kanbe, Ichiro Tamai, Yuzuru Hosoe, Kiwamu Tanahashi, Yoshio Takahashi +2 more 2001-04-24
6033792 Soft magnetic thin film, and magnetic head and magnetic recording device using the same Fumiyoshi Kirino, Shigekazu Otomo, Noriyuki Kumasaka, Takeshi Miura 2000-03-07
5962153 Soft magnetic thin film, and magnetic head and magnetic recording apparatus using the film Fumiyoshi Kirino 1999-10-05
5873955 Soft magnetic thin film, and magnetic head and magnetic recording device using the same Fumiyoshi Kirino, Shigekazu Otomo, Noriyuki Kumasaka, Takeshi Miura 1999-02-23
5858548 Soft magnetic thin film, and magnetic head and magnetic recording device using the same Fumiyoshi Kirino, Shigeharu Otomo, Noriyuki Kumasaka, Takeshi Miura 1999-01-12
5290629 Magnetic film having a magnetic phase with crystallites of 200 A or less and an oxide phase present at the grain boundaries Toshio Kobayashi, Ryoichi Nakatani, Hitoshi Nakamura 1994-03-01
4460412 Method of making magnetic bubble memory device by implanting hydrogen ions and annealing Ryo Imura, Tadashi Ikeda, Ryo Suzuki, Teruaki Takeuchi, Hiroshi Umezaki +1 more 1984-07-17
4288283 Method of forming a microscopic pattern Hiroshi Umezaki, Hideki Nishida, Norikazu Tsumita, Hirozi Yamada, Katsuhiro Kaneko 1981-09-08
4262054 Magnetic bubble memory device Hiroshi Umezaki, Hideki Nishida, Hirozi Yamada, Yutaka Sugita, Katsuhiro Kaneko +1 more 1981-04-14