Patents by Inventor Masahiro Yasukawa

Masahiro Yasukawa 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).

  • Patent number: 10589232
    Abstract: A forward osmosis membrane characterized in that a thin membrane layer having the performance of a semi-permeable membrane is laminated on a polyketone support layer.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: March 17, 2020
    Assignees: ASAHI KASEI KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY
    Inventors: Toru Morita, Masayuki Kaneda, Masahiro Yasukawa, Hideto Matsuyama
  • Publication number: 20170225131
    Abstract: A forward osmosis membrane characterized in that a thin membrane layer having the performance of a semi-permeable membrane is laminated on a polyketone support layer.
    Type: Application
    Filed: August 10, 2015
    Publication date: August 10, 2017
    Inventors: Toru MORITA, Masayuki KANEDA, Masahiro YASUKAWA, Hideto MATSUYAMA
  • Patent number: 8896775
    Abstract: An electro-optical device includes a pixel electrode provided on a substrate, a transistor provided between the substrate and the pixel electrode, a first capacitor electrode provided between the pixel electrode and the transistor, and be electrically connected to the pixel electrode and the transistor, a second capacitor electrode provided between the pixel electrode and the first capacitor electrode, be located so as to be opposite the first capacitor electrode via a capacitor insulating film, and be supplied with a predetermined electric potential, and a light-shielding film provided between the pixel electrode and the second capacitor electrode, be located so as to be at least partially overlapped by the transistor, and be electrically connected to the second capacitor electrode via a contact hole formed in an insulating film disposed between the second capacitor electrode and the light-shielding film.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: November 25, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Minoru Moriwaki, Masahiro Yasukawa, Ken Wakita
  • Publication number: 20140267943
    Abstract: In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.
    Type: Application
    Filed: April 25, 2014
    Publication date: September 18, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masahiro YASUKAWA
  • Patent number: 8749748
    Abstract: In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: June 10, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Masahiro Yasukawa
  • Publication number: 20140111720
    Abstract: A substrate is provided having a pixel region including a pixel electrode and a switching element. A periphery region in the periphery of the pixel region includes a first light-shielding film, the first light-shielding film being formed from the same layer as the pixel electrode. A passivation film that covers the pixel electrode and the first light-shielding film is provided.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 24, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masahiro YASUKAWA
  • Patent number: 8634045
    Abstract: A reflective-electrode-side substrate of a reflective-type liquid crystal panel substrate has a pixel region including a pixel electrode, reflecting part, a light shielding film, and a switching element. A periphery region in the periphery of the pixel region outside of the pixel region includes a driving circuit that includes at least one switching element, and a wiring layer that is electrically connected to the at least one switching element. The switching elements may consist of transistors. This configuration can reduce the amount of light leaking through spaces between pixel electrodes and prevent adverse effects on image quality.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: January 21, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Masahiro Yasukawa
  • Publication number: 20130308070
    Abstract: In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.
    Type: Application
    Filed: July 29, 2013
    Publication date: November 21, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masahiro YASUKAWA
  • Publication number: 20130258263
    Abstract: A liquid crystal device includes a pixel electrode provided on an interlayer insulation film of a pixel substrate, a seal material, a plurality of connection terminals provided outside the seal material, a first dummy electrode which is provided on the same layer as the pixel electrode in a first dummy region crossing a peripheral region of the pixel region and a region on which the seal material is disposed, a plurality of second dummy electrodes which are provided on the same layer as the pixel electrode in a second dummy region between the region on which the seal material is disposed and the plurality of connection terminals, a insulation film covering the pixel electrode, the first dummy electrode and the plurality of second dummy electrodes.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 3, 2013
    Applicant: Seiko Epson Corporation
    Inventor: Masahiro Yasukawa
  • Patent number: 8525968
    Abstract: In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: September 3, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Masahiro Yasukawa
  • Patent number: 8441606
    Abstract: An electro-optical device comprises: a first data line extending in a first direction; a second data line extending in the first direction and arranged so as to be at least partially overlapped with the first data line; a first scanning line and a second scanning line extending in a second direction intersecting the first direction; a first transistor electrically connected to the first data line and electrically connected to the first scanning line; a first pixel electrode electrically connected to the first transistor; a second transistor electrically connected to the second data line and electrically connected to the second scanning line; and a second pixel electrode electrically connected to the second transistor.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: May 14, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Masashi Nakagawa, Masahiro Yasukawa, Takunori Iki
  • Patent number: 8358396
    Abstract: In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: January 22, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Masahiro Yasukawa
  • Publication number: 20120224112
    Abstract: A substrate is provided having a pixel region including a pixel electrode and a switching element. A periphery region in the periphery of the pixel region includes a first light-shielding film, the first light-shielding film being formed from the same layer as the pixel electrode. A passivation film that covers the pixel electrode and the first light-shielding film is provided.
    Type: Application
    Filed: May 11, 2012
    Publication date: September 6, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masahiro YASUKAWA
  • Patent number: 8253909
    Abstract: An electro-optical device substrate includes a substrate, a plurality of data lines and a plurality of scanning lines crossing each other on the substrate, and a plurality of pixels defined by the plurality of data lines and the plurality of scanning lines so as to correspond to intersections thereof. Each pixel includes a pixel electrode, a conducting layer formed in a non-opening region separating an opening region of the pixel from that of another pixel, the conducting layer having a protruding portion protruding into the opening region from a part of one of a plurality of region edges defining the opening region, and a first contact portion electrically connecting the pixel electrode and the protruding portion.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: August 28, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Tatsuya Ishii, Masahiro Yasukawa, Minoru Moriwaki
  • Patent number: 8208101
    Abstract: A substrate is provided having a pixel region including a pixel electrode and a switching element. A periphery region in the periphery of the pixel region includes a first light-shielding film, the first light-shielding film being formed from the same layer as the pixel electrode. A passivation film that covers the pixel electrode and the first light-shielding film is provided.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: June 26, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Masahiro Yasukawa
  • Publication number: 20120092570
    Abstract: In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.
    Type: Application
    Filed: December 22, 2011
    Publication date: April 19, 2012
    Applicant: Seiko Epson Corporation
    Inventor: Masahiro YASUKAWA
  • Patent number: 8107049
    Abstract: In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: January 31, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Masahiro Yasukawa
  • Publication number: 20110222008
    Abstract: An electro-optical device includes a pixel electrode provided on a substrate, a transistor provided between the substrate and the pixel electrode, a first capacitor electrode provided between the pixel electrode and the transistor, and be electrically connected to the pixel electrode and the transistor, a second capacitor electrode provided between the pixel electrode and the first capacitor electrode, be located so as to be opposite the first capacitor electrode via a capacitor insulating film, and be supplied with a predetermined electric potential, and a light-shielding film provided between the pixel electrode and the second capacitor electrode, be located so as to be at least partially overlapped by the transistor, and be electrically connected to the second capacitor electrode via a contact hole formed in an insulating film disposed between the second capacitor electrode and the light-shielding film.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 15, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Minoru MORIWAKI, Masahiro YASUKAWA, Ken WAKITA
  • Publication number: 20110170025
    Abstract: The present invention is a liquid crystal panel substrate that comprises: pixel units each having a pixel electrode, to be used as a reflective electrode and arranged in a matrix pattern on a substrate, and a switching element controlling a voltage applied to the pixel electrode; wherein between the pixel electrode and a conductive layer forming a terminal electrode of the switching element, a contact hole is provided for connecting the pixel electrode and the terminal electrode. A light-shielding layer, having an opening surrounding the portion in which the contact hole is formed, and having no opening in regions between a plurality of adjacent pixel electrodes, is formed between the pixel electrode and the conductive layer. Harmful effects due to light leaking through a space between the pixel electrodes can thereby be prevented.
    Type: Application
    Filed: March 17, 2011
    Publication date: July 14, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masahiro YASUKAWA
  • Patent number: 7932974
    Abstract: The present invention is a liquid crystal panel substrate that comprises: pixel units each having a pixel electrode, to be used as a reflective electrode and arranged in a matrix pattern on a substrate, and a switching element controlling a voltage applied to the pixel electrode; wherein between the pixel electrode and a conductive layer forming a terminal electrode of the switching element, a contact hole is provided for connecting the pixel electrode and the terminal electrode. A light-shielding layer, having an opening surrounding the portion in which the contact hole is formed, and having no opening in regions between a plurality of adjacent pixel electrodes, is formed between the pixel electrode and the conductive layer. Harmful effects due to light leaking through a space between the pixel electrodes can thereby be prevented.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: April 26, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Masahiro Yasukawa