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Ishiwata, Kanagawa

Hiromasa Ishiwata, Kanagawa JP

Patent application numberDescriptionPublished
20110242952SIGNAL CONVERSION CIRCUIT AND SAMPLING METHOD THEREFOR - A digital disk device is provided in which the quality of a digital signal is improved without causing the development cost for and power consumption by the digital disk device to increase. An ADC included in a signal conversion circuit samples an analog signal which represents the intensity of a laser beam reflected, after being emitted from a laser source driven by a current superimposed with a high-frequency signal, from an optical disk using a clock signal whose frequency is substantially the same as that of the high-frequency signal and converts the sampled analog signal into a digital signal. An LPF provided in a stage preceding the ADC passes a component, not exceeding a predetermined frequency, of the analog signal with the frequency of the clock signal set to be higher than the predetermined frequency.10-06-2011

Hisashi Ishiwata, Kanagawa JP

Patent application numberDescriptionPublished
20110134273IMAGING APPARATUS, CONTROL METHOD OF IMAGING APPARATUS, AND COMPUTER PROGRAM - An imaging apparatus includes a face detecting unit detecting a face region from an input image input to the imaging apparatus and a control unit calculating a distance to a subject on the basis of the face size detected by the face detection unit and displaying distance identification information indicating a distance corresponding to the calculated distance in a display unit.06-09-2011

Kensuke Ishiwata, Kanagawa JP

Patent application numberDescriptionPublished
20090300907Method for manufacturing magnetic disk unit - Embodiments of the present invention provide a method for manufacturing a magnetic disk unit, the method permitting easy and efficient introduction of a low-density gas into the enclosure. According to one embodiment, an enclosure of the magnetic disk unit has a gas inlet and a gas outlet, each of which is provided with a filter. When the enclosure is filled with helium, the mass flow rate of helium being supplied to the gas inlet is detected and the mass flow rate of helium being supplied to the gas inlet is controlled according to the thus detected mass flow rate of helium.12-10-2009

Koji Ishiwata, Kanagawa JP

Patent application numberDescriptionPublished
20100150189LASER CONTROL METHOD AND LASER CONTROL CIRCUIT - A laser control method includes the steps of: using a laser control circuit which includes a constant current circuit that maintains a constant current flowing through a semiconductor laser element, and which includes an adder and a multiplier connected to a stage preceding the constant current circuit, and using detection means for calibration for detecting an applied laser output; calculating, on the basis of a detection signal output from the detection means, a reference bias value and a reference gain value for obtaining a specified laser output with respect to a specified input to the multiplier; inputting the reference bias value and the reference gain value to the adder and the multiplier, respectively; and controlling the applied laser output from the semiconductor laser element by performing calibration.06-17-2010
20100265554HOLOGRAM REPRODUCING AND IMAGING APPARATUS, AND HOLOGRAM REPRODUCING AND IMAGING METHOD - A hologram reproducing and imaging apparatus includes a reference light source configured to be arranged near a hologram recording material on which a hologram is recorded and has an arrangement of a plurality of light sources, a reference light source drive section configured to drive the plurality of light sources in a time-division manner, an imaging sensor configured to capture an image of a reproduction area irradiated with reference light from the reference light source and photoelectrically convert the image, and an image processing section configured to process an imaging signal from the imaging sensor. Partial captured images are obtained by enabling the imaging signal of the area irradiated when the plurality of light sources are turned on, and the partial captured images are combined to be a reproduction image by the image processing section.10-21-2010

Mika Ishiwata, Kanagawa JP

Patent application numberDescriptionPublished
20090197012PLASMA CVD APPARATUS - In a plasma CVD apparatus, unnecessary discharge such as arc discharge is prevented, the amount of particles due to peeling of films attached to a reaction chamber is reduced, and the percentage of a time contributing to production in hours of operation of the apparatus is increased while enlargement of the apparatus and easy workability are maintained. The plasma CVD apparatus is configured such that in a conductive reaction chamber 08-06-2009

Nobuyoshi Ishiwata, Kanagawa JP

Patent application numberDescriptionPublished
20120001048STAND DEVICE FOR PORTABLE ELECTRONIC DEVICE - To provide a stand device capable of improving workability in removing a portable electronic device. A stand device has a pedestal and a lever mechanism. The pedestal is supported movable between a support portion for supporting an electronic device mounted on the support surface and a removal position at which the pedestal is arranged through a movement thereof in which the pressing portion descends. The lever mechanism includes a pressed arm and a projection. The pressed arm is pressed by the pressing portion to thus move downward when the pedestal moves from the support position to the removal position. The projection moves upward along with the rotation of the fulcrum portion caused by the downward movement of the pressed arm to thus project from the support surface of the pedestal.01-05-2012

Tomoko Ishiwata, Kanagawa JP

Patent application numberDescriptionPublished
20100194291ILLUMINATION APPARATUS - An illumination apparatus includes an image sensor 08-05-2010

Yasuhiro Ishiwata, Kanagawa JP

Patent application numberDescriptionPublished
20090049622HAIR DYE COMPOSITION - Provided is a hair dye composition containing a dissociative direct dye (1):02-26-2009
20090056038HAIR DYE COMPOSITION - A hair dye composition containing an azo dye (1) or a salt thereof,03-05-2009
20100146716HAIR DYE COMPOSITION - A hair dye composition containing an azo dye represented by any one of the formulas (1) to (5): [wherein R06-17-2010

Patent applications by Yasuhiro Ishiwata, Kanagawa JP