Issued Patents All Time
Showing 51–75 of 110 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6912100 | Device and signal processing circuit for magnetic recording, magnetic recording apparatus | Hideki Sawaguchi, Yasutaka Nishida, Toru Matsushita | 2005-06-28 |
| 6906889 | Magnetic disk drive | Takehiko Hamaguchi, Futoshi Tomiyama, Toru Matsushita | 2005-06-14 |
| 6894874 | Disk drive having magnetic head conduction paths with arrangements to control impedance | Yohji Maruyama, Hiroshi Ikekame | 2005-05-17 |
| 6879460 | Magnetic recording disk drive | Futoshi Tomiyama, Takehiko Hamaguchi, Toru Matsushita, Hideki Zaitsu, Reijiro Tsuchiya | 2005-04-12 |
| 6839200 | Combination perpendicular magnetic head having shield material formed at both ends of an upper pole of a write element | Naoki Koyama, Hideo Tanabe, Eijin Moriwaki, Isamu Yuito, Kazuo Shiiki +5 more | 2005-01-04 |
| 6822818 | Magnetic hard disk drive | Takehiko Hamaguchi, Kyo Akagi, Takayuki Ichihara | 2004-11-23 |
| 6741412 | Data recording/reproducing signal processing circuit for magnetic recording, and perpendicular magnetic recording/reproducing apparatus using it | Hideki Sawaguchi, Yasutaka Nishida, Toru Matsushita | 2004-05-25 |
| 6717760 | Magnetic disk drive | Takehiko Hamaguchi, Futoshi Tomiyama, Hideki Zaitsu | 2004-04-06 |
| 6710973 | Single pole type recording head including tapered edges | Tomohiro Okada, Yoshiaki Kawato, Yasutaka Nishida, Yasuo Wakaki, Masafumi Mochizuki | 2004-03-23 |
| 6687099 | Magnetic head with conductors formed on endlayers of a multilayer film having magnetic layer coercive force difference | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Eijin Moriwaki +14 more | 2004-02-03 |
| 6665141 | Magnetic head having track width defined by trench portions filled with magnetic shield material | Naoki Koyama, Hideo Tanabe, Eijin Moriwaki, Isamu Yuito, Kazuo Shiiki +5 more | 2003-12-16 |
| 6661606 | Magnetic disk apparatus with magnetic head having upper and lower magnetic cores of an electroplated thin film | Masaaki Sano, Yoshiaki Kita, Shun-ichi Narumi, Takashi Kawabe, Moriaki Fuyama +2 more | 2003-12-09 |
| 6661613 | Magnetic disk drive | Yohji Maruyama, Hiroshi Ikekame | 2003-12-09 |
| 6657805 | Method of controlling read write operation of a magnetic disk apparatus | Yasutaka Nishida, Takehiko Hamaguchi, Hiroshi Ide, Hideki Sawaguchi, Futoshi Tomiyama | 2003-12-02 |
| 6657804 | Magnetic recording disk drive | Futoshi Tomiyama, Takehiko Hamaguchi, Toru Matsushita, Hideki Zaitsu, Reijiro Tsuchiya | 2003-12-02 |
| 6657813 | Perpendicular magnetic recording system | Yasutaka Nishida, Masafumi Mochizuki | 2003-12-02 |
| 6538844 | Method of fabricating a magnetic head by focused ion beam etching | Naoki Koyama, Hideo Tanabe, Eijin Moriwaki, Isamu Yuito, Kazuo Shiiki +5 more | 2003-03-25 |
| 6530141 | Method of forming thin film magnetic recording head with narrow track width performing high density recording at high driving frequency | Matahiro Komuro, Tomohiro Okada, Moriaki Fuyama, Tetsuo Ito, Hiroshi Fukui +2 more | 2003-03-11 |
| 6529348 | Magnetic disk apparatus having an electric conducting path with a defined characteristic impedance and which interconnects a write element and a read/write integrated circuit | Yohji Maruyama, Hiroshi Ikekame | 2003-03-04 |
| 6515817 | Magnetic disk drive | Takehiko Hamaguchi, Futoshi Tomiyama, Toru Matsushita | 2003-02-04 |
| 6490131 | Thin film magnetic head with electroplated Ni-Fe alloy thin film having small average crystal grain size range | Masaaki Sano, Yoshiaki Kita, Shun-ichi Narumi, Takashi Kawabe, Moriaki Fuyama +2 more | 2002-12-03 |
| 6483677 | Magnetic disk apparatus including magnetic head having multilayered reproducing element using tunneling effect | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Eijin Moriwaki +14 more | 2002-11-19 |
| 6473254 | Method and system for compensation of nonlinearity or fluctuation of head-position signal | Takehiko Hamaguchi, Futoshi Tomiyama, Hideki Zaitsu | 2002-10-29 |
| 6469873 | Magnetic head and magnetic storage apparatus using the same | Yoji Maruyama, Yoshio Suzuki, Ryoichi Nakatani | 2002-10-22 |
| 6452758 | Magnetic storage apparatus | Masahiro Kitada, Mikio Suzuki | 2002-09-17 |