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 |
20110176403 | OPTICAL HEAD DEVICE, OPTICAL INFORMATION PROCESSING DEVICE, AND SIGNAL DETECTION METHOD - An optical head device includes a light source ( | 07-21-2011 |
20110243787 | POWER OF TUNGSTEN ALLOY WITH TRANSITION METAL DISSOLVED THEREIN AS SOLID SOLUTION AND PROCESS FOR PRODUCING THE SAME - This invention is related to a powder of a tungsten alloy with a transition metal dissolved therein as a solid solution that is suitable as material for a cemented carbide represented by formula [1] and a material for a catalyst. The powder of tungsten alloy is characterized in that at least one transition metal element selected from the group consisting of cobalt, iron, manganese and nickel is dissolved as a solid solution in a tungsten grating and a peak derived from a bcc tungsten phase appears in an X-ray diffraction diagram. Formula [1]: M−W wherein M represents one or more elements selected from Co, Fe, Mn and Ni. The use of tungsten alloy powder can provide a tungsten carbide with a transition metal dissolved therein as a solid solution in which a solid solution phase comprising at least one transition metal element selected from the group consisting of cobalt, iron, manganese and nickel, tungsten and carbon is included in a tungsten carbide skeleton, and a tungsten carbide diffused cemented carbide. | 10-06-2011 |
20110257003 | TRANSITION METAL-INCLUDED TUNGSTEN CARBIDE, TUNGSTEN CARBIDE DIFFUSED CEMENTED CARBIDE, AND PROCESS FOR PRODUCING SAME - This invention is related to a powder of a transition metal dissolved tungsten alloy carbide which comprises a transition metal element forcibly dissolved as a solid solution which represented by Formula [1] of M-W—C wherein M is one or more of Co, Fe, Ni and Mn and its tungsten alloy carbide diffused cemented carbide. The diffused cemented carbide is compatible with the conventional tungsten carbide diffused cemented carbide and comprises a binder metal and a tungsten alloy carbide which is provided with a solid solution phase of at least one transition metal element selected from the group consisting of cobalt, iron, nickel and manganese, included in a tungsten carbide skeleton, which exhibits a peak derived from a bcc tungsten phase in an X-ray diffraction diagram. | 10-20-2011 |
20110262977 | PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE AMINE DERIVATIVE - Optically active amine derivatives are produced by acting on imine derivatives with a culture of microorganisms having the ability to stereoselectively reduce the compounds, microbial cells, or processed products thereof, followed by collecting the generated optically active amine derivatives. Optically active amine derivatives obtained in the present invention are useful as materials for pharmaceutical agents. The present invention enables, for example, production of an optically active compound represented by formula (IV): | 10-27-2011 |
20110287494 | PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE AMINE DERIVATIVE - Novel enzymes that stereoselectively reduce imine derivatives were isolated and purified, and polynucleotides encoding the enzymes were cloned. Optically active amine derivatives were produced by acting on imine derivatives with a culture of microorganisms having the ability to stereoselectively reduce the compounds, microbial cells or processed products thereof, and/or imine reductases thereof, followed by collecting the generated optically active amine derivatives. The present invention enables, for example, production of an optically active compound represented by formula (IV): | 11-24-2011 |
20120255461 | METHOD FOR PURIFYING ETHYL-2-CYANOACRYLATE ADHESIVE COMPOSITION AND ETHYL-2-CYANOACRYLOATE ADHESIVE COMPOSITION - The present invention provides an ethyl-2-cyanoacrylate adhesive composition obtained as a result of significant improvement on conventional problems, that is, irritating odor and whitening of conventional ethyl-2-cyanoacrylate adhesive compositions. According to a method of the present invention for purifying an ethyl-2-cyanoacrylate adhesive composition, a sum total of an acrylonitrile content and an ethanol content is arranged to be in a range of 1 ppm to 150 ppm, by carrying out deaeration at the same time as injection of an inactive gas at a reduced pressure in a range of 100 Pa to 10000 Pa at a temperature in a range of 5° C. to 50° C. Thereby, the method of the present invention allows improving irritating odor and whitening. | 10-11-2012 |