Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6579642 | Battery device | Tetsuya Yamane, Katsumi Hisano, Kei Matsuoka, Hideo Iwasaki | 2003-06-17 |
| 6562493 | Battery, lead member for battery connection, and battery pack using the same | Masazumi Tsukada, Reiji Nishikawa, Hideaki Kitazume, Noriyuki Shimizu, Kayo Tanaka +1 more | 2003-05-13 |
| 6558835 | Battery module of parallel electric cell rod bodies | Norihito Kurisu, Koji Ishiwa | 2003-05-06 |
| 6335116 | Battery device having a turbulence accelerator for disordering a coolant flow | Tetsuya Yamane, Katsumi Hisano, Kei Matsuoka, Hideo Iwasaki | 2002-01-01 |
| 6278674 | Phase change optical disk initializing apparatus | Shigeru Araki, Yuki Fujimura | 2001-08-21 |
| 6157596 | Method for erasing rewritable optical disk using two laser beams | — | 2000-12-05 |
| 6094406 | Astigmatic difference correcting method for optical head and apparatus therefor | — | 2000-07-25 |
| 5978345 | Astigmatic difference correcting method for optical head and apparatus therefor | — | 1999-11-02 |
| 5959961 | Optical recording medium having multiple recording layers and method for recording and reproducing thereof | — | 1999-09-28 |
| 5909416 | Land/groove detecting method and apparatus for an optical disk | — | 1999-06-01 |
| 5901120 | Optical disc apparatus with sensing circuitry to judge a movement direction of a beam spot | — | 1999-05-04 |
| 5886978 | Optical head apparatus | — | 1999-03-23 |
| 5852595 | Device for initializing an optical disc | — | 1998-12-22 |
| 5812515 | Apparatus and method for playing back optical recording having high linear density | — | 1998-09-22 |
| 5787064 | Optical head with a plurality of optical sensors to receive reflected light beams for reproducing focusing, tracking and RF signals | — | 1998-07-28 |
| 5784353 | Optical disk initializing apparatus | — | 1998-07-21 |
| 5777961 | Astigmatic difference correcting method for optical head and apparatus therefor | — | 1998-07-07 |
| 5757746 | Method and apparatus for controlling track kick for optical disk drive | — | 1998-05-26 |
| 5751681 | Tracking signal detection with a photodetector receiving one of a .-+.1st-order polarized light | — | 1998-05-12 |
| 5748580 | Objective lens actuator for optical head | — | 1998-05-05 |
| 5734638 | Objective lens actuator and method for manufacturing the same | — | 1998-03-31 |
| 5663840 | Objective lens actuator for optical head and used for high speed access | — | 1997-09-02 |
| 5623372 | Thin type optical head | — | 1997-04-22 |
| 5621707 | Method for erasing rewritable optical disk using two laser beams and an erasingspacehead therefor | — | 1997-04-15 |
| 5612936 | Method and apparatus for detecting tracking error signal for optical disk using pairs of photosensors | — | 1997-03-18 |