Tatsu
Eriko Tatsu, Kokubunji JP
Patent application number | Description | Published |
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20110013502 | OPTICAL PICK-UP AND OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS - An optical pick-up which permits the relative position of a diffracting optical element and a photodetector to be adjusted by feedback control with signals which are generated when more than one kind of diffracted light differing in order is received, the diffracted light occurring as the reflected light from the optical disc is divided and diffracted by the diffracting optical element having multiple regions. The photodetector which detects the light beam passing through the central region of the diffracting optical element and generates RF signals is juxtaposed with sub-photodetectors, so that they receive reflected stray light from out-of-focus layers and perform computation to calculate the reflected stray light component which the RF signal detector receives, thereby detecting only the component of signals of the reflected light from a target layer. | 01-20-2011 |
20120087220 | OPTICAL PICKUP AND OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS - An optical pickup includes a light source, an optical system for irradiating a recording medium including a plurality of recording layers with light from the light source, a diffraction optical element that divides light reflected from the recording medium into a plurality of optical fluxes and diffracts the fluxes, and an optical detector receiving the optical flux diffracted by the diffraction optical element. The optical detector includes a light receiving element detecting a focus error signal, wherein a longitudinal direction of the light receiving element is arranged to coincide with a circumferential direction of the recording medium, or arranged to be inclined to a circumferential or radial direction. | 04-12-2012 |
Haruyoshi Tatsu, Ibaraki JP
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20090036706 | Polyfluoroalkyl Alcohol, Or (METH)Acrylic Acid Derivative Thereof, And Process For Producing The Same - A polyfluoroalkyl alcohol, or a (meth)acrylic acid derivative thereof, represented by the following general formula: | 02-05-2009 |
20090286931 | Process for preparing aqueous dispersion - An aqueous dispersion is prepared by subjecting (meth)acrylate containing a polyfluoroalkyl group and a polymerizable monomer containing no fluorine atom to an emulsification treatment in the presence of a surfactant and a polypropyleneglycol-based compound having a molecular weight of 250 to 5,000, followed by copolymerization reaction in the presence of a polymerization initiator. The resulting aqueous dispersion, even if prepared from (meth)acrylate copolymer containing mixed perfluoroalkyl groups including perfluoroalkyl groups having 12 or more carbon atoms as polyfluoroalkyl groups, has a distinguished emulsion stability and thus can be effectively used as a water and oil repellent, etc. | 11-19-2009 |
20110040043 | NOVEL DIURETHANE COMPOUND, PROCESS FOR PRODUCING THE SAME, AND ACRYLIC RUBBER COMPOSITION CONTAINING THE SAME - Disclosed is a diurethane compound R | 02-17-2011 |
Jintaro Tatsu, Ibaraki JP
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20140299666 | CARD AND CARD MANUFACTURING METHOD - Provided are a card and card manufacturing method that enable clear visual recognition of a display in a display portion even if the card surface has been provided with a matte finish, and enable an improvement in texture related to position drift between a display device and a window portion, as well as an improvement in workability during manufacture. The card ( | 10-09-2014 |
Jintaro Tatsu, Ushiku-Shi, Ibaraki JP
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20140016286 | CARD WITH BUILT-IN ELECTRONIC COMPONENT - Provided is a card with a built-in electronic component, which has a superior button click sensation. A card of the present invention into which is built-in a module substrate upon which an electronic component has been disposed is provided with: a front cover sheet stacked upon a side above the module substrate; an adhesion layer adhering between the module substrate and the front cover sheet; and a dome switch which is disposed upon the module substrate, and by way of the card upper surface being pressed, the switch's movable portion deforms to the module substrate side so that the electrical contact comes into tactile contact with the module substrate in order to operate the card; wherein the switch's movable portion is such that the upper surface does not adhere to the adhesion layer and the deformation to the module substrate side is unrestrained with respect to the adhesion layer. | 01-16-2014 |
Kunihiko Tatsu, Kadoma-Shi JP
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20090065228 | POWER IMPACT TOOL - A power impact tool includes a main body accommodating a chuck at a front end portion thereof; a clutch handle for setting a torque applied to the chuck; a grip including a base portion; a free end portion; and a reinforcing connecting portion connected to the front end portion of the main body at the back of the clutch handle and to the free end portion of the grip. The reinforcing connecting portion is disposed in front of the grip; and a part protruded most forward among the reinforcing connecting portion is located directly in front of the trigger switch disposed at the base portion of the grip. A part of the reinforcing connecting portion disposed behind the clutch handle retreats backward toward the free end portion of the grip. | 03-12-2009 |
Kunihiko Tatsu, Osaka JP
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20090229845 | HAMMER DRILL - A hammer drill includes a motor; a spindle rotatingly driven by the motor and holding an output bit; a motion conversion member for converting rotational movement of the motor to reciprocating movement; a striker reciprocatingly driven by the motion conversion member for applying an axial striking force to the output bit; a striking-motion-releasing mechanism for releasing the striking force applying action exercised by the striker; and a tightening-torque adjusting clutch for interrupting the transfer of the rotational force to the output bit by increasing a load torque. | 09-17-2009 |
Yoshiro Tatsu, Ikeda-Shi JP
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20120288885 | METHOD AND KIT FOR MEASURING ENZYMATIC ACTIVITIES OF VARIOUS CYTOCHROME P450 MOLECULE SPECIES COMPREHENSIVELY AND WITH HIGH EFFICIENCY - The present invention relates to a method, and a kit, for measuring the enzymatic activity of cytochrome P450 comprehensively and with high efficiency and accuracy, wherein an oxygen sensing layer and a cytochrome P450-supporting layer are vertically integrated on a chip, and cytochrome P450 is supported in a hydrophilic polymer matrix in the cytochrome P450-supporting layer, | 11-15-2012 |