Patents by Inventor Kazuya Kumazawa

Kazuya Kumazawa 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: 11777267
    Abstract: Provided is a connector assembly capable of suppressing temperature rise in a bus bar during energization. The connector assembly of the present invention includes a connector portion having an insertion port, and a bus bar portion having a bus bar, and the bus bar includes a first connection part, a second connection part extending in an opposite direction from the first connection part along the first direction, and a joint portion joining the first connection part and the second connection part. The width of the joint portion is larger than that of each of the first connection part and the second connection part in a range from one end to another end of the joint portion, and a distance from the one end to the another end of the joint portion is larger than the width of each of the first connection part and the second connection part.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: October 3, 2023
    Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventor: Kazuya Kumazawa
  • Publication number: 20220285897
    Abstract: Provided is a connector assembly capable of suppressing temperature rise in a bus bar during energization. The connector assembly of the present invention includes a connector portion having an insertion port, and a bus bar portion having a bus bar, and the bus bar includes a first connection part, a second connection part extending in an opposite direction from the first connection part along the first direction, and a joint portion joining the first connection part and the second connection part. The width of the joint portion is larger than that of each of the first connection part and the second connection part in a range from one end to another end of the joint portion, and a distance from the one end to the another end of the joint portion is larger than the width of each of the first connection part and the second connection part.
    Type: Application
    Filed: January 5, 2022
    Publication date: September 8, 2022
    Inventor: Kazuya KUMAZAWA
  • Patent number: 9001198
    Abstract: There is provided an image display viewing system including an image display device including a signal control portion that receives input of an image signal and outputs a signal that causes each of multiple different images to be displayed at least twice consecutively, and a display panel to which the signal output from the signal control portion is input and which alternately displays each of the multiple different images at least twice consecutively, and an optical modulator including a liquid crystal layer on which an image having a predetermined polarization direction output from the image display device and external light having random polarization are incident, and which periodically changes the polarization direction of the incident light, and a polarizing plate on which light emitted from the liquid crystal layer is incident and which has a polarization axis in a predetermined direction.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: April 7, 2015
    Assignee: Sony Corporation
    Inventors: Atsushi Ito, Kyoichiro Oda, Toyokazu Ogasawara, Kazuya Kumazawa
  • Publication number: 20110074939
    Abstract: There is provided an image display viewing system including an image display device including a signal control portion that receives input of an image signal and outputs a signal that causes each of multiple different images to be displayed at least twice consecutively, and a display panel to which the signal output from the signal control portion is input and which alternately displays each of the multiple different images at least twice consecutively, and an optical modulator including a liquid crystal layer on which an image having a predetermined polarization direction output from the image display device and external light having random polarization are incident, and which periodically changes the polarization direction of the incident light, and a polarizing plate on which light emitted from the liquid crystal layer is incident and which has a polarization axis in a predetermined direction.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 31, 2011
    Inventors: Atsushi ITO, Kyoichiro Oda, Toyokazu Ogasawara, Kazuya Kumazawa
  • Patent number: 7447522
    Abstract: There is provided a card holding structure that holds a SIM card in a housing without covering with a chargeable battery case to hold the SIM card. A card connector is fixed on a board of a portable terminal. The card is held by card holding portions provided at a front part of the card in a sliding direction of the card connector. A slope 4 provides a stopper, which slope is formed by a rectangular elastic piece, one end of which is fixed to a housing.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: November 4, 2008
    Assignee: NEC Corporation
    Inventors: Kazuya Kumazawa, Kazuo Oosawa
  • Publication number: 20080151145
    Abstract: Provided is a method of manufacturing a liquid crystal display element which improve aperture ratio of a panel while maintaining good response characteristics against voltage in VA mode using liquid crystal having negative dielectric constant anisotropy. The method of manufacturing a liquid crystal display element includes steps of: sealing, between a couple of substrates facing each other with electrodes formed thereon, a liquid crystal layer containing liquid crystal molecules having a negative dielectric constant anisotropy and a curing material; applying a magnetic field to the liquid crystal layer sealed between the couple of substrates, in a direction to form a predetermined angle with respect to a line normal to the substrates; and curing the curing material after applying the magnetic field.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 26, 2008
    Applicant: SONY CORPORATION
    Inventors: Kazuya Kumazawa, Tsuyoshi Kamada
  • Publication number: 20080153379
    Abstract: Provided is a method of manufacturing a liquid crystal display in which the aperture ratio of a panel is improved while maintaining good response characteristics against voltage, in a display mode using liquid crystal having negative dielectric constant anisotropy. The method of manufacturing a liquid crystal display comprising steps of: forming vertical alignment films on facing surfaces of a couple of substrates facing each other, respectively; subjecting the vertical alignment films to a rubbing process at least along one direction within planes of the substrates; sealing, between the couple of substrates with the vertical alignment films formed, a liquid crystal layer having a negative dielectric constant anisotropy and containing a curing material; and curing the curing material of the liquid crystal layer, under a voltage applied between the couple of substrates.
    Type: Application
    Filed: December 10, 2007
    Publication date: June 26, 2008
    Applicant: SONY CORPORATION
    Inventors: Kazuya Kumazawa, Tsuyoshi Kamada
  • Publication number: 20040063462
    Abstract: There is provided a card holding structure that holds a SIM card in a housing without covering with a chargeable battery case to hold the SIM card.
    Type: Application
    Filed: September 29, 2003
    Publication date: April 1, 2004
    Applicant: NEC CORPORATION
    Inventors: Kazuya Kumazawa, Kazuo Oosawa
  • Patent number: D476635
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: July 1, 2003
    Assignee: NEC Corporation
    Inventors: Michio Nagai, Atsushi Ohta, Masaki Shimamura, Katsuya Sakaguchi, Kazuya Kumazawa, Kazuo Oosawa, Jin Kuramoto, Mitsuaki Kanada, Kazuhiko Yamaoka
  • Patent number: D814450
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: April 3, 2018
    Assignee: NEC CORPORATION
    Inventors: Kazuya Kumazawa, Toshiaki Mizushima