Patents by Inventor Hiroko Muramatsu

Hiroko Muramatsu 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: 8624885
    Abstract: An electro-optical device includes an electro-optical panel, a display area of the electro-optical panel being surrounded by a peripheral member. The electro-optical device also includes the following elements. A light-receiving sensor receives external light. A light-shielded sensor is connected to the light-receiving sensor and is shielded from the external light received by the light-receiving sensor. The light-shielded sensor is located at a position at which it is overlapped with the peripheral member.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: January 7, 2014
    Assignee: Japan Display West Inc.
    Inventors: Shin Koide, Shin Fujita, Hiroko Muramatsu
  • Patent number: 8194205
    Abstract: An electro-optical device includes a transparent substrate, a PIN type diode formed in the transparent substrate and receiving light introduced through a light receiving side surface of the transparent substrate, and a reflecting portion provided on a surface side opposite to the light receiving side surface of the transparent substrate and for reflecting light passed through the transparent substrate to the PIN type diode.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: June 5, 2012
    Assignee: Sony Corporation
    Inventors: Shin Koide, Hiroko Muramatsu, Shin Fujita
  • Patent number: 7759757
    Abstract: An electro-optical device includes an insulating substrate, a switching element, at least one PIN diode, and at least one reflector. The switching element includes a first polysilicon semiconductor layer formed on the insulating substrate, and a gate electrode formed between the insulating substrate and the first semiconductor layer. Each of the at least one PIN diode includes a second polysilicon semiconductor layer formed on the insulating substrate. The at least one reflector is formed in the same layer as the gate electrode and opposite the second semiconductor layer or layers of the at least one PIN diode.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: July 20, 2010
    Assignee: Sony Corporation
    Inventors: Shin Koide, Hiroko Muramatsu, Shin Fujita
  • Publication number: 20090135325
    Abstract: An electro-optical device includes an insulating substrate, a switching element, at least one PIN diode, and at least one reflector. The switching element includes a first polysilicon semiconductor layer formed on the insulating substrate, and a gate electrode formed between the insulating substrate and the first semiconductor layer. Each of the at least one PIN diode includes a second polysilicon semiconductor layer formed on the insulating substrate. The at least one reflector is formed in the same layer as the gate electrode and opposite the second semiconductor layer or layers of the at least one PIN diode.
    Type: Application
    Filed: December 15, 2008
    Publication date: May 28, 2009
    Applicant: EPSON IMAGES DEVICES CORPORATION
    Inventors: Shin Koide, Hiroko Muramatsu, Shin Fujita
  • Patent number: 7498649
    Abstract: An electro-optical device includes an insulating substrate, a switching element, at least one PIN diode, and at least one reflector. The switching element includes a first polysilicon semiconductor layer formed on the insulating substrate, and a gate electrode formed between the insulating substrate and the first semiconductor layer. Each of the at least one PIN diode includes a second polysilicon semiconductor layer formed on the insulating substrate. The at least one reflector is formed in the same layer as the gate electrode and opposite the second semiconductor layer or layers of the at least one PIN diode.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: March 3, 2009
    Assignee: Epson Imaging Devices Corporation
    Inventors: Shin Koide, Hiroko Muramatsu, Shin Fujita
  • Publication number: 20080001912
    Abstract: An electro-optical device includes an electro-optical panel, a display area of the electro-optical panel being surrounded by a peripheral member. The electro-optical device also includes the following elements. A light-receiving sensor receives external light. A light-shielded sensor is connected to the light-receiving sensor and is shielded from the external light received by the light-receiving sensor. The light-shielded sensor is located at a position at which it is overlapped with the peripheral member.
    Type: Application
    Filed: June 19, 2007
    Publication date: January 3, 2008
    Applicant: EPSON IMAGING DEVICES CORPORATION
    Inventors: Shin Koide, Shin Fujita, Hiroko Muramatsu
  • Publication number: 20070229484
    Abstract: An electro-optical device includes a substrate having a plurality of scanning lines, a plurality of data lines, and a plurality of pixels each including a pixel electrode and a switching element, the pixels disposed at positions corresponding to intersecting portions of the scanning lines and the data lines; a photoelectric transducer that converts light into electrical signals disposed on the substrate; and a reflecting layer that reflects incident light toward the photoelectric transducer and light-shielding layers that oppose the switching elements, the layers being disposed on the substrate. The reflecting layer is composed of the same film as the light-shielding layers.
    Type: Application
    Filed: February 26, 2007
    Publication date: October 4, 2007
    Applicant: EPSON IMAGING DEVICES CORPORATION
    Inventors: Shin Fujita, Shin Koide, Hiroko Muramatsu
  • Publication number: 20070215969
    Abstract: An electro-optical device includes an insulating substrate, a switching element, at least one PIN diode, and at least one reflector. The switching element includes a first polysilicon semiconductor layer formed on the insulating substrate, and a gate electrode formed between the insulating substrate and the first semiconductor layer. Each of the at least one PIN diode includes a second polysilicon semiconductor layer formed on the insulating substrate. The at least one reflector is formed in the same layer as the gate electrode and opposite the second semiconductor layer or layers of the at least one PIN diode.
    Type: Application
    Filed: February 21, 2007
    Publication date: September 20, 2007
    Applicant: EPSON IMAGING DEVICES CORPORATION
    Inventors: Shin Koide, Hiroko Muramatsu, Shin Fujita
  • Publication number: 20070200971
    Abstract: An electro-optical device includes a transparent substrate, a PIN type diode formed in the transparent substrate and receiving light introduced through a light receiving side surface of the transparent substrate, and a reflecting portion provided on a surface side opposite to the light receiving side surface of the transparent substrate and for reflecting light passed through the transparent substrate to the PIN type diode.
    Type: Application
    Filed: February 9, 2007
    Publication date: August 30, 2007
    Applicant: EPSON IMAGING DEVICES CORPORATION
    Inventors: Shin Koide, Hiroko Muramatsu, Shin Fujita