Issued Patents All Time
Showing 1–25 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9885675 | Ionizing radiation detection apparatus | Ikuo Watanabe | 2018-02-06 |
| 7855939 | Optical disc apparatus employing an objective lens having a high numerical aperture | — | 2010-12-21 |
| 7839730 | Optical pickup and optical disk drive apparatus | — | 2010-11-23 |
| 7804745 | Optical pickup and optical disk device | Yoshikazu Asai | 2010-09-28 |
| 7796313 | Holographic information recording-reproducing process and apparatus therefor | Haruhiko Horiguchi | 2010-09-14 |
| 7729213 | Optical disk apparatus employing an objective lens having a high numerical aperture | — | 2010-06-01 |
| 7570546 | Optical pick-up and optical disk device | — | 2009-08-04 |
| 7515356 | Optical disk apparatus with protection member for objective lens | — | 2009-04-07 |
| 7333402 | Magneto-optical head support structures | Kazunori Suzuki | 2008-02-19 |
| 6909673 | Magneto-optical recording apparatus having a magnetic head with a regulating member | Shinnosuke Torii | 2005-06-21 |
| 6805901 | Magnetic domain wall displacement type magneto-optical medium and method for manufacturing the same | — | 2004-10-19 |
| 6773374 | Brake negative pressure control apparatus and method, and engine control unit for internal combustion engine | Ken Ogawa, Choichi Sugawara | 2004-08-10 |
| 6614731 | Method and apparatus for recording magnetic domain having an arc shape convex in a forward scanning direction of a magneto-optical recording medium | — | 2003-09-02 |
| 6584045 | High speed magnetic coil for magneto-optical head | Kozo Yoshida | 2003-06-24 |
| 6529448 | High speed magnetic coil for magneto-optical head | Kozo Yoshida | 2003-03-04 |
| 6477119 | Magnetic head drive circuit including paired auxiliary coils, paired switching elements, and switch element control circuit, and magneto-optical recording device using the same | — | 2002-11-05 |
| 6466523 | Displacement of magnetic head and optical head in magneto-optical recording apparatus | — | 2002-10-15 |
| 6314060 | Magnetic head for magneto-optic recording, and magneto-optic recording apparatus | — | 2001-11-06 |
| 6298015 | Magneto-optical reproducing method using a magnified magnetic domain | Masakuni Yamamoto, Koichiro Nishikawa | 2001-10-02 |
| 6041024 | Signal reproducing apparatus utilizing displacement of magnetic wall | — | 2000-03-21 |
| 5991242 | Magnetic head drive device, and magneto-optical recording apparatus using the same | — | 1999-11-23 |
| 5986976 | Magnetooptical recording head for a recording apparatus including a laminated core having a plurality of magnetic thin films sandwiching insulating films therebetween | — | 1999-11-16 |
| 5703839 | Magnetic head for magnetooptical recording apparatus | — | 1997-12-30 |
| 5689478 | Magnetic head for magneto-optical recording and magneto-optical recording apparatus in which a magnetic core mounted to a slider has particular dimensions and properties | Shinichi Tachibana | 1997-11-18 |
| 5687141 | Method and apparatus for recording information on magnetooptical recording medium while canceling external stray magnetic field | — | 1997-11-11 |