Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8274755 | Magnetic disk unit | Yuuji Ishima, Kazuyoshi Hanada, Takashi Matsuki | 2012-09-25 |
| 8248724 | Disk drive and method of re-injecting low density gas in a hermetically sealed disk enclosure of a disk drive | Takako Hayakawa, Yoshiyuki Hirono, Hideaki Maeda, Kouki Uefune | 2012-08-21 |
| 8196284 | Manufacturing method of base and manufacturing method of disk drive device | Kouki Uefune, Takako Hayakawa, Yoshiyuki Hirono | 2012-06-12 |
| 7894158 | Magnetic disk apparatus | Kazuyoshi Hanada, Takashi Matsuki, Yuuji Ishima | 2011-02-22 |
| 7545601 | Magnetic disk drive with line contact | Kazuyoshi Hanada, Kenji Tomida, Yuji Ishima | 2009-06-09 |
| 7441959 | Bearing mechanism for spindle motor in magnetic disk drive | Kazuyoshi Hanada, Yuji Ishima | 2008-10-28 |
| 6771460 | Spindle motor and magnetic disc device using thereof having radial and thrust bearings | Katsutoshi Nii, Shozo Saegusa, Tsuyoshi Takahashi, Kenji Tomida, Takashi Matsuki +5 more | 2004-08-03 |
| 6680814 | Spindle motor and magnetic disc device with hydrodynamic bearings | Katsutoshi Nii, Shozo Saegusa, Tsuyoshi Takahashi, Kenji Tomida, Takashi Matsuki +5 more | 2004-01-20 |
| 6487330 | Optical switch, method of manufacturing same, and optical communication equipment using same | Masaya Horino, Kazutaka Sato, Teruhisa Akashi, Norifumi Komatsu, Dai Kobayashi +1 more | 2002-11-26 |
| 6469866 | Spindle motor and magnetic disc device with hydrodynamic bearing | Katsutoshi Nii, Shozo Saegusa, Tsuyoshi Takahashi, Kenji Tomida, Takashi Matsuki +5 more | 2002-10-22 |
| 6369981 | Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit | Katsutoshi Nii, Kenji Tomida, Hiroshi Nishida, Kouki Uefune, Yuuichi Yanagase +4 more | 2002-04-09 |
| 6369980 | Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit | Katsutoshi Nii, Kenji Tomida, Hiroshi Nishida, Kouki Uefune, Yuuichi Yanagase +4 more | 2002-04-09 |
| 6356408 | Magnetic disk apparatus, including spindle motor having air flow passage in hub for pressure balance | Katsutoshi Nii, Kenji Tomida, Kouki Uefune, Shozo Saegusa, Yuuichi Yanagase | 2002-03-12 |
| 6304527 | Near-field optical head and manufacturing method thereof and optical recording/readout system using near-field optical head | Kenchi Ito, Sumio Hosaka, Kimio Nakamura | 2001-10-16 |
| 6243230 | Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit | Katsutoshi Nii, Kenji Tomida, Hiroshi Nishida, Kouki Uefune, Yuuichi Yanagase +4 more | 2001-06-05 |
| 6219472 | Optical switch, method of manufacturing same, and optical communication equipment using the same | Masaya Horino, Kazutaka Sato, Teruhisa Akashi, Norifumi Komatsu, Dai Kobayashi +1 more | 2001-04-17 |
| 5781576 | Semiconductor laser device and optical disk drive | Katsuhiko Kimura, Shozo Saegusa | 1998-07-14 |
| 5508805 | Interferometer, optical scanning type tunneling microscope and optical probe | Hidehiko Kando, Mamoru Kainuma, Katsuhiko Kimura, Shozo Saegusa, Katsuyuki Tanaka | 1996-04-16 |
| 5481515 | Optical information storage medium control apparatus | Hidehiko Kando, Mamoru Kainuma, Katsuhiko Kimura | 1996-01-02 |
| 5448536 | Magneto-optical recording device having an optical head capable of generating a circularly polarized light beam | Hidehiko Kando, Mamoru Kainuma, Katsuhiko Kimura | 1995-09-05 |
| 5404009 | Integrated optical information detector for an optical information processing apparatus with a plurality of photo detecting strips and a common bonding pad | Hidehiko Kando, Mamoru Kainuma, Katsuhiko Kimura | 1995-04-04 |