Patents by Inventor Tatsuya Ichikawa

Tatsuya Ichikawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150237343
    Abstract: A method of measuring a shutter time lag of a camera includes: a first step of switching a display pattern of a display unit including i (i is a natural number greater than 2) display elements to a different display pattern at every time TP, and in the first step, the number of j (j is a natural number, and 1<j<i) display elements to be brought into a first display state among i display elements is switched at every time TP; a second step of capturing an image of the display unit in response to a shutter operation of the camera performed in synchronization with the switching operation; and a third step of deducing a shutter time lag taken from the shutter operation to the imaging of the display unit from the image captured by the camera.
    Type: Application
    Filed: October 8, 2013
    Publication date: August 20, 2015
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Ryuichi Shiohara, Tatsuya Ichikawa
  • Publication number: 20150229857
    Abstract: Provided is a signal processing apparatus, including: an A/D conversion unit configured to perform A/D conversion of a first signal, A/D conversion of a second signal, A/D conversion of a third signal, and A/D conversion of a fourth signal; and a correlated double sampling processing unit configured to generate a first output signal by performing correlated double sampling using a first digital data item obtained through the A/D conversion of the first signal, and a second digital data item obtained through the A/D conversion of the second signal, a second output signal by performing correlated double sampling using a third digital data item obtained through the A/D conversion of the third signal, and a fourth digital data item obtained through the A/D conversion of the fourth signal, and a third output signal by performing correlated double sampling using the first output signal and the second output signal.
    Type: Application
    Filed: February 5, 2015
    Publication date: August 13, 2015
    Inventors: Tatsuya Ichikawa, Nobutaka Shimamura, Atsushi Suzuki, Yusuke Oike, Katsumi Honda, Masahiro Nakamura
  • Publication number: 20150214498
    Abstract: There is provided an organic EL element including a light emitting unit including at least a plurality of light emitting layers each containing an organic compound and emitting light when a predetermined potential difference is supplied and an intermediate layer that is arranged between the light emitting layers to inject electric charge into the light emitting layers, an anode and a cathode between which the light emitting unit is interposed in a stacking direction and which supply the predetermined potential difference to the light emitting unit, and a potential control mechanism configured to control potential of the intermediate layer in a manner that the potential is set to potential between potential of the anode and potential of the cathode.
    Type: Application
    Filed: January 16, 2015
    Publication date: July 30, 2015
    Inventors: Tatsuya Ichikawa, Taizo Tanaka
  • Patent number: 8921872
    Abstract: A display unit includes: a plurality of light-emitting devices; and a separation section disposed between any adjacent two of the plurality of light-emitting devices and including a photoexcited material. A light-emitting device includes: an excitation light source; a wavelength conversion layer converting excitation light emitted from the excitation light source into light of a wavelength different from a wavelength of the excitation light; and a wavelength selection film disposed on a surface farther from the excitation light source of the wavelength conversion layer.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: December 30, 2014
    Assignee: Sony Corporation
    Inventors: Tatsuya Ichikawa, Tadashi Ishibashi, Taichi Natori
  • Patent number: 8670660
    Abstract: An image display device includes a display unit that is installed inside a finder window provided in a housing and displays images, an obtaining unit that obtains brightness of a space inside the finder window, and a control unit that when the brightness obtained by the obtaining unit is a first brightness, sets the brightness of the display unit to a second brightness, and when the brightness obtained by the obtaining unit is a third brightness brighter than the first brightness, sets the brightness of the display unit to a fourth brightness brighter than the second brightness.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: March 11, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Tatsuya Ichikawa
  • Publication number: 20130341750
    Abstract: There is provided a solid-state imaging device including a plurality of pixels which are arranged in a two-dimensional array form and in each of which color separation is performed in a substrate depth direction. The solid-state imaging device includes a pixel addition section which performs addition, when pixel signals of the plurality of pixels are added up to be outputted, by setting addition regions of pixel signals of a first color component to be shifted from addition regions of pixel signals of a second color component at regular intervals.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 26, 2013
    Inventors: Tatsuya Ichikawa, Hayato Wakabayashi, Hisashi Kurebayashi
  • Patent number: 8501392
    Abstract: A photosensitive element comprises a support, a photosensitive layer and a protective film laminated in that order, wherein the photosensitive layer is composed of a photosensitive resin composition containing a binder polymer, a photopolymerizing compound, a photopolymerization initiator and a compound with a maximum absorption wavelength of 370-420 nm, and the protective film is composed mainly of polypropylene.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: August 6, 2013
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Manabu Saitou, Junichi Iso, Tatsuya Ichikawa, Takeshi Ohashi, Hanako Yori, Masahiro Miyasaka, Takashi Kumaki
  • Publication number: 20130020251
    Abstract: Disclosed is a separation membrane comprising—an elongated substrate having fluid permeability and a separation layer formed at the surface of said substrate—wherein the aforementioned separation layer comprises a predetermined thickness section having a predetermined thickness and thin sections each positioned on the outside of both edges in the widthwise direction of said predetermined thickness portion and having a thinner thickness than the aforementioned predetermined thickness, and there is a separation-layer-lacking section, at which only the aforementioned substrate is present and the aforementioned separation layer is absent, between the outside edges in the widthwise direction of each of said thin sections and the outer edges in the widthwise direction of the aforementioned substrate. The separation membrane can be produced by using coating bar having a protrusion on both the left and right ends of the surface that contacts a macromolecule solution for forming the separation layer.
    Type: Application
    Filed: March 17, 2011
    Publication date: January 24, 2013
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Tatsuya Ichikawa, Sadajiro Hatano
  • Patent number: 8315515
    Abstract: An image display device includes a display unit that is installed inside a finder window provided in a housing and displays images, an illumination unit that illuminates a space inside the finder window, an obtaining unit that obtains brightness of an outside of the housing, and a control unit that when the brightness obtained by the obtaining unit is a first brightness, sets the brightness of the illumination unit to a second brightness, and when the brightness obtained by the obtaining unit is a third brightness brighter than the first brightness, sets the brightness of the illumination unit to a fourth brightness brighter than the second brightness.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: November 20, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tatsuya Ichikawa
  • Patent number: 8306413
    Abstract: An image display device includes a display unit that is installed inside a finder window provided in a housing and displays images, an illumination unit that illuminates a space inside the finder window, and a control unit that when brightness of the display unit is a first brightness, sets the brightness of the illumination unit to a second brightness, and when the brightness of the display unit is a third brightness brighter than the first brightness, sets the brightness of the illumination unit to a fourth brightness brighter than the second brightness.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: November 6, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tatsuya Ichikawa
  • Patent number: 8094990
    Abstract: An information processing apparatus includes a timing specifying unit that allows a user to specify a timing to execute video printing of a video file at least including first image data based on which a video frame is generated and second image data based on which a video frame is generated by additionally referring to image data of another video frame; a reference frame selecting unit that selects, on the basis of the timing specified by the timing specifying unit, the video frame generated from the first image data as a reference frame; an additional frame selecting unit that selects, on the basis of the reference frame selected by the reference frame selecting unit, one or a plurality of video frames generated from the first image data as additional frames; and an extracted image displaying unit that generates a plurality of extracted images on the basis of the first image data of the reference frame and the first image data of the additional frames and displays a group of the generated extracted images o
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: January 10, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tatsuya Ichikawa
  • Publication number: 20110199527
    Abstract: An image display device includes a display unit that is installed inside a finder window provided in a housing and displays images, an obtaining unit that obtains brightness of an outside of the housing, and a control unit that, when the brightness obtained by the obtaining unit is a first brightness, sets the brightness of the display unit to a second brightness, and when the brightness obtained by the obtaining unit is a third brightness brighter than the first brightness, sets the brightness of the display unit to a fourth brightness brighter than the second brightness.
    Type: Application
    Filed: February 15, 2011
    Publication date: August 18, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tatsuya Ichikawa
  • Publication number: 20110200317
    Abstract: An image display device includes a display unit that is installed inside a finder window provided in a housing and displays images, an illumination unit that illuminates a space inside the finder window, and a control unit that when brightness of the display unit is a first brightness, sets the brightness of the illumination unit to a second brightness, and when the brightness of the display unit is a third brightness brighter than the first brightness, sets the brightness of the illumination unit to a fourth brightness brighter than the second brightness.
    Type: Application
    Filed: February 15, 2011
    Publication date: August 18, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tatsuya Ichikawa
  • Publication number: 20110200318
    Abstract: An image display device includes a display unit that is installed inside a finder window provided in a housing and displays images, an illumination unit that illuminates a space inside the finder window, an obtaining unit that obtains brightness of an outside of the housing, and a control unit that when the brightness obtained by the obtaining unit is a first brightness, sets the brightness of the illumination unit to a second brightness, and when the brightness obtained by the obtaining unit is a third brightness brighter than the first brightness, sets the brightness of the illumination unit to a fourth brightness brighter than the second brightness.
    Type: Application
    Filed: February 15, 2011
    Publication date: August 18, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tatsuya Ichikawa
  • Publication number: 20110199006
    Abstract: An image display device includes a display unit that is installed inside a finder window provided in a housing and displays images, an obtaining unit that obtains brightness of a space inside the finder window, and a control unit that when the brightness obtained by the obtaining unit is a first brightness, sets the brightness of the display unit to a second brightness, and when the brightness obtained by the obtaining unit is a third brightness brighter than the first brightness, sets the brightness of the display unit to a fourth brightness brighter than the second brightness.
    Type: Application
    Filed: February 15, 2011
    Publication date: August 18, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Tatsuya Ichikawa
  • Patent number: 7805296
    Abstract: An audio data processing device including: a first processor; and a second processor which is connected to the first processor wherein the first processor includes: an audio data acquisition which acquires audio data of digital data; an omitting section which omits a bit corresponding to low volume which is hard to be heard by human ears from the audio data; and a transmitter which transmits the audio data in which the bit corresponding to the low volume is omitted by the omitting section from the first processor to the second processor; wherein the second processor includes: a receiver which receives the audio data transmitted from the first processor; and a reproduction data generator which generates audio reproduction data necessary to reproduce the audio data based on the received audio data.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: September 28, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuya Ichikawa, Mahesh Inamdar, Anand Kumar, Aditya S. Chikodi, Kazuto Mogami
  • Publication number: 20100129752
    Abstract: The photosensitive resin composition of the present invention is a photosensitive resin composition comprising: (A) a binder polymer; (B) a photopolymerizable compound with at least one polymerizable ethylenic unsaturated group in the molecule; and (C) a photopolymerization initiator, wherein component (A) contains a polymer that contains a compound represented by the following general formula (I) as a polymerization component: CH2?C(L1)-COOL2??(I) (wherein L1 represents a hydrogen atom or methyl group and L2 represents a C2-20 alkyl group group) and component (B) contains a compound represented by the following general formula (II): (wherein R1 represents a hydrogen atom or methyl group, R2 represents a C3-20 alkyl group that has at least 2 tertiary or higher carbon atoms, X represents a C2-6 alkylene group, and n is an integer from 1 to 20).
    Type: Application
    Filed: May 15, 2006
    Publication date: May 27, 2010
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Yoshiki Ajioka, Tatsuya Ichikawa, Mitsuo Matsuda, Takahiro Inatsugi
  • Publication number: 20090297982
    Abstract: A photosensitive element comprises a support, a photosensitive layer and a protective film laminated in that order, wherein the photosensitive layer is composed of a photosensitive resin composition containing a binder polymer, a photopolymerizing compound, a photopolymerization initiator and a compound with a maximum absorption wavelength of 370-420 nm, and the protective film is composed mainly of polypropylene.
    Type: Application
    Filed: April 13, 2007
    Publication date: December 3, 2009
    Inventors: Manabu Saitou, Junichi Iso, Tatsuya Ichikawa, Takeshi Ohashi, Hanako Yori, Masahiro Miyasaka, Takashi Kumaki
  • Patent number: 7592124
    Abstract: There are disclosed a photosensitive element comprising a support film which comprises a biaxially oriented polyester film and a photosensitive resin composition layer formed on one surface of the polyester film; wherein a resin layer containing fine particles is formed on the opposite surface of the support film to which the photosensitive resin composition layer is formed, and said photosensitive resin composition comprises (A) a binder polymer having a carboxyl group, (B) a photopolymerizable compound having at least one polymerizable ethylenically unsaturated group in the molecule, and (C) a photopolymerization initiator, a photosensitive element roll, a process for the preparation of a resist pattern using the same, the resist pattern, a resist pattern-laminated substrate, a process for the preparation of a wiring pattern and the wiring pattern.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: September 22, 2009
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Tasuo Chiba, Tatsuya Ichikawa
  • Publication number: 20070285573
    Abstract: An information processing apparatus includes a timing specifying unit that allows a user to specify a timing to execute video printing of a video file at least including first image data based on which a video frame is generated and second image data based on which a video frame is generated by additionally referring to image data of another video frame; a reference frame selecting unit that selects, on the basis of the timing specified by the timing specifying unit, the video frame generated from the first image data as a reference frame; an additional frame selecting unit that selects, on the basis of the reference frame selected by the reference frame selecting unit, one or a plurality of video frames generated from the first image data as additional frames; and an extracted image displaying unit that generates a plurality of extracted images on the basis of the first image data of the reference frame and the first image data of the additional frames and displays a group of the generated extracted images o
    Type: Application
    Filed: March 28, 2007
    Publication date: December 13, 2007
    Applicant: Seiko Epson Corporation
    Inventor: Tatsuya Ichikawa