| Patent application number | Description | Published |
|---|
| 20090168626 | OPTICAL PICKUP DEVICE AND PHOTODETECTOR - An optical pickup device includes: a first light-receiving element for receiving a main beam of a first light beam; second and third light-receiving elements for receiving sub-beams of the first light beam; a fourth light-receiving element for receiving a main beam of a second light beam; and fifth and sixth light-receiving elements for receiving sub-beams of the second light beam. The first through third light-receiving elements are located on a first line with the first light-receiving element sandwiched between the second and third light-receiving elements. The fourth through sixth light-receiving elements are located on a second line with the fourth light-receiving element sandwiched between the fifth and sixth light-receiving elements. The first line and the second line are parallel to each other. | 07-02-2009 |
| 20090203096 | Process for Production of Optically Active Alcohol - The present invention provides methods for producing (S)-1,1,1-trifluoro-2-propanol, which include the step of reacting an enzyme of any one of alcohol dehydrogenase CpSADH, alcohol dehydrogenase ReSADH, carbonyl reductase ScoPAR, (2S,3S)-butanediol dehydrogenase ZraSBDH, carbonyl reductase ScGCY1, tropinone reductase HnTR1, tropinone reductase DsTR1, or alcohol dehydrogenase BstADHT, a microorganism or a transformant strain that functionally expresses the enzyme, or a processed material thereof, with 1,1,1-trifluoroacetone. The present invention also provides methods for producing (R)-1,1,1-trifluoro-2-propanol, which include the step of reacting alcohol dehydrogenase PfODH, a microorganism or a transformant strain that functionally expresses the enzyme, or a processed material thereof, with 1,1,1-trifluoroacetone. | 08-13-2009 |
| 20100014411 | OPTICAL PICKUP DEVICE - A pickup device includes a diffraction grating | 01-21-2010 |
| 20100157778 | OPTICAL PICKUP DEVICE - An optical pickup device includes a diffraction grating | 06-24-2010 |
| 20100177618 | OPTICAL PICKUP DEVICE - An optical pickup device includes a diffraction grating | 07-15-2010 |
| 20100238780 | OPTICAL PICKUP DEVICE - A pickup device includes a diffraction grating | 09-23-2010 |
| 20110069597 | OPTICAL HEAD APPARATUS, HOLOGRAPHIC OPTICAL DEVICE, OPTICAL INTEGRATED DEVICE, OPTICAL INFORMATION PROCESSING APPARATUS, AND SIGNAL DETECTION METHOD - An optical head apparatus including a holographic optical device which diffracts a light beam and includes a first diffraction region and a second diffraction region facing each other across a region dividing line passing through an optical axis of a light-collection optical system and extending in a radial direction of an optical disc, the first diffraction region having a grating pattern for generating diffracted light having a first wavefront and entering a first photoreception region and a second photoreception region, the second diffraction region having a grating pattern for generating diffracted light having a second wavefront and entering a third photoreception region and a fourth photoreception region, the first and second wavefronts having first and second coma aberrations in the radial direction of the optical disc, respectively, and the first and second coma aberrations having axes located off the optical axis. | 03-24-2011 |
| 20110090776 | OPTICAL HEAD DEVICE, OPTICAL INFORMATION PROCESSING APPARATUS, AND SIGNAL DETECTING METHOD - An optical head device includes a light source configured to emit a light beam, a light collecting optical system configured to converge the light beam onto an information recording medium, a hologram element configured to diffract the light beam reflected from the information recording medium, and a photodetector having a plurality of detection regions configured to receive the light beam diffracted by the hologram element. The hologram element has a plurality of diffraction regions separated from each other by a straight line extending in a track direction of the information recording medium. At least one of the plurality of diffraction regions has a pattern which introduces coma aberration in the track direction to the diffracted light. | 04-21-2011 |
| 20110090780 | INFORMATION RECORDING MEDIUM AND METHOD FOR PRODUCING THE SAME, RECORDING OR REPRODUCING METHOD, AND OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE - An information recording medium is provided that includes a recording portion ( | 04-21-2011 |
