Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7227818 | Magneto-optical data recording/reproducing method | Tsuyoshi Toda, Takeshi Maeda, Hiroshi Ide, Hiroyuki Tsuchinaga, Fumiyoshi Kirino +2 more | 2007-06-05 |
| 7159303 | Method for manufacturing magnetic head device | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Hisashi Takano +14 more | 2007-01-09 |
| 7054120 | Magnetic apparatus with perpendicular recording medium and head having multilayered reproducing element using tunneling effect | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Hisashi Takano +14 more | 2006-05-30 |
| 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, Hisashi Takano +14 more | 2004-02-03 |
| 6490123 | Disc drive having 3.5 inch form factor housing and 2.5 inch form factor disk media | Nobuyuki Okunaga, Masao Iwakura, Kazuo Nakagoshi, Takuji Ogawa, Chuma Akira +5 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, Hisashi Takano +14 more | 2002-11-19 |
| 6278593 | Magnetoresistance effect elements and magnetic heads using the tunneling magnetoresistive effect | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Hisashi Takano +14 more | 2001-08-21 |
| 6011674 | Magnetoresistance effect multilayer film with ferromagnetic film sublayers of different ferromagnetic material compositions | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Hisashi Takano +14 more | 2000-01-04 |
| 5848045 | Method for recording and reading an optical disk | Fumiyoshi Kirino, Tsuyoshi Toda, Hiroshi Ide, Hisataka Sugiyama, Atsushi Saito +6 more | 1998-12-08 |
| 5766718 | Longitudinal magnetic recording medium and apparatus | Yoshibumi Matsuda, Masaaki Futamoto, Yoshinori Miyamura, Takeshi Nakano, Hisashi Takano +3 more | 1998-06-16 |
| 5736235 | Magnetic recording medium having at least two magnetic layers with easy axes oriented in the same direction | Yoshibumi Matsuda, Masaaki Futamoto, Yoshinori Miyamura, Tokuho Takagaki, Hisashi Takano +5 more | 1998-04-07 |
| 5726837 | Multilayer magnetoresistance effect-type magnetic head | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Hisashi Takano +14 more | 1998-03-10 |
| 5703855 | Optical disk apparatus and recording and reading method for an optical disk using the same | Fumiyoshi Kirino, Tsuyoshi Toda, Horishi Ide, Hisataka Sugiyama, Atsushi Saito +6 more | 1997-12-30 |
| 5568331 | Method of head positioning and magnetic recording disk drive using the same | Kyo Akagi, Masaaki Futamoto, Yoshinori Miyamura, Hisashi Takano, Yoshibumi Matsuda +8 more | 1996-10-22 |
| 5513165 | Method for controlling the farm of a magnetic domain of a magneto-optical disk using pre-write testing | Hiroshi Ide, Fumiyoshi Kirino, Tsuyashi Toda, Takeshi Maeda, Hiroyuki Tsuchinaga +4 more | 1996-04-30 |
| 5463600 | Magneto-optical recording system using recording waveform having a plurality of power levels providing high recording density | Fumiyoshi Kirino, Atsushi Saito, Tsuyoshi Toda, Hiroshi Ide, Hiroyuki Tsuchinaga +1 more | 1995-10-31 |
| 5420846 | Recording medium having a plurality of nonlinear transmission characteristics | Hisataka Sugiyama, Akira Arimoto, Motoyasu Terao, Norio Murase, Kimio Tatsuno +2 more | 1995-05-30 |
| 5390061 | Multilayer magnetoresistance effect-type magnetic head | Ryoichi Nakatani, Masahiro Kitada, Naoki Koyama, Isamu Yuito, Hisashi Takano +14 more | 1995-02-14 |
| 5325244 | Magnetic recording data storage system | Hisashi Takano, Kyo Akagi, Mikio Suzuki, Yoshibumi Matsuda, Takeshi Nakao +8 more | 1994-06-28 |
| 5093822 | High-density magnetic recording and optical reproducing apparatus | Mikio Suzuki, Kyo Akagi, Takeshi Nakao, Masaaki Futamoto, Yoshinori Miyamura +2 more | 1992-03-03 |
| 5083226 | Magnetic disk drive | Kazuo Shiiki, Yoshihiro Shiroishi, Norio Ohta, Toshiaki Tsuyoshi, Hisashi Takano | 1992-01-21 |
| 4777553 | Magnetic head | Hajime Aoi, Takashi Tamura | 1988-10-11 |
| 4755891 | Circuit for processing waveform of reproduced signal in magnetic reproducing apparatus | Yasuhiro Katoh, Hajime Aoi | 1988-07-05 |