Patents by Inventor Keisuke Yazawa

Keisuke Yazawa 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).

  • Solid-state imaging apparatus
    Patent number: 9871983
    Abstract: A solid-state imaging apparatus includes a pixel including: a photoelectric converter that generates a signal charge corresponding to incident light; a charge storage section that is connected to the photoelectric converter and accumulates signal charge; a reset transistor; an amplifying transistor; and a cutoff transistor, wherein the amplifying transistor and the cutoff transistor form a negative feedback amplifying circuit.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: January 16, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Keisuke Yazawa, Motonori Ishii, Yutaka Hirose, Yoshihisa Kato, Yoshiyuki Matsunaga
  • SOLID-STATE IMAGING APPARATUS
    Publication number: 20170094206
    Abstract: A solid-state imaging apparatus includes a pixel including: a photoelectric converter that generates a signal charge corresponding to incident light; a charge storage section that is connected to the photoelectric converter and accumulates signal charge; a reset transistor; an amplifying transistor; and a cutoff transistor, wherein the amplifying transistor and the cutoff transistor form a negative feedback amplifying circuit.
    Type: Application
    Filed: December 13, 2016
    Publication date: March 30, 2017
    Inventors: Keisuke YAZAWA, Motonori ISHII, Yutaka HIROSE, Yoshihisa KATO, Yoshiyuki MATSUNAGA
  • Solid-state imaging apparatus
    Patent number: 9554067
    Abstract: The present invention provides a solid-state imaging apparatus that can significantly reduce kTC noise by using a negative feedback amplifying circuit. A solid-state imaging apparatus includes a pixel unit including a plurality of pixels arranged on a semiconductor substrate in a matrix, the pixel unit including, for each column, a source line and a column signal line, each of the plurality of pixels including: a photoelectric conversion unit that generates a signal charge corresponding to incident light; a storage unit storing the signal charge; a reset transistor; an amplifying transistor; and a cutoff transistor, wherein the amplifying transistor and the cutoff transistor form a negative feedback amplifying circuit. With this configuration, kTC noise can significantly be reduced.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: January 24, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Keisuke Yazawa, Motonori Ishii, Yutaka Hirose, Yoshihisa Kato, Yoshiyuki Matsunaga
  • Piezoelectric material and devices using the same
    Patent number: 9082975
    Abstract: Provided is a Bi-based piezoelectric material having good piezoelectric properties. The piezoelectric material includes a perovskite-type metal oxide represented by the following general formula (1): Ax(ZnjTi(1-j))l(MgkTi(1-k))mMnO3??General formula (1) where: A represents a Bi element, or one or more kinds of elements selected from the group consisting of trivalent metal elements and containing at least a Bi element; M represents at least one kind of an element selected from the group consisting of Fe, Al, Sc, Mn, Y, Ga, and Yb; and 0.9?x?1.25, 0.4?j?0.6, 0.4?k?0.6, 0.09?l?0.49, 0.19?m?0.64, 0.13?n?0.48, and l+m+n=1 are satisfied.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: July 14, 2015
    Assignees: Canon Kabushiki Kaisha, Tokyo Institute of Technology, Sophia School Corporation
    Inventors: Makoto Kubota, Kaoru Miura, Hisato Yabuta, Takayuki Watanabe, Jumpei Hayashi, Hiroshi Funakubo, Tomoaki Yamada, Shintaro Yasui, Keisuke Yazawa, Hiroshi Uchida, Jun-ichi Nagata
  • Piezoelectric material
    Patent number: 8980117
    Abstract: Provided is a piezoelectric material having a high Curie temperature and satisfactory piezoelectric characteristics, the piezoelectric material being represented by the following general formula (1): A(ZnxTi(1-x))yM(1-y)O3??(1) where A represents a Bi element, M represents at least one element selected from Fe, Al, Sc, Mn, Y, Ga, and Yb; x represents a numerical value of 0.4?x?0.6; and y represents a numerical value of 0.17?y?0.60.
    Type: Grant
    Filed: January 1, 2010
    Date of Patent: March 17, 2015
    Assignees: Canon Kabushiki Kaisha, Tokyo Institute of Technology, Sophia University, National Institute of Advanced Industrial Science and Technology
    Inventors: Makoto Kubota, Toshihiro Ifuku, Hiroshi Funakubo, Keisuke Yazawa, Hiroshi Uchida, Takashi Iijima, Bong-yeon Lee
  • PIEZOELECTRIC MATERIAL AND DEVICES USING THE SAME
    Publication number: 20130127298
    Abstract: Provided is a Bi-based piezoelectric material having good piezoelectric properties. The piezoelectric material includes a perovskite-type metal oxide represented by the following general formula (1): Ax(ZnjTi(1-j))l(MgkTi(1-k))mMnO3??General formula (1) where: A represents a Bi element, or one or more kinds of elements selected from the group consisting of trivalent metal elements and containing at least a Bi element; M represents at least one kind of an element selected from the group consisting of Fe, Al, Sc, Mn, Y, Ga, and Yb; and 0.9?x?1.25, 0.4?j?0.6, 0.4?k?0.6, 0.09?l?0.49, 0.19?m?0.64, 0.13?n?0.48, and l+m+n=1 are satisfied.
    Type: Application
    Filed: February 28, 2011
    Publication date: May 23, 2013
    Applicants: CANON KABUSHIKI KAISHA, SOPHIA SCHOOL CORPORATION, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Makoto Kubota, Kaoru Miura, Hisato Yabuta, Takayuki Watanabe, Jumpei Hayashi, Hiroshi Funakubo, Tomoaki Yamada, Shintaro Yasui, Keisuke Yazawa, Hiroshi Uchida, Jun-ichi Nagata
  • PIEZOELECTRIC MATERIAL
    Publication number: 20110268965
    Abstract: Provided is a piezoelectric material having a high Curie temperature and satisfactory piezoelectric characteristics, the piezoelectric material being represented by the following general formula (1): A(ZnxTi(1-x))yM(1-y)O3??(1) where A represents a Bi element, M represents at least one element selected from Fe, Al, Sc, Mn, Y, Ga, and Yb; x represents a numerical value of 0.4?x?0.6; and y represents a numerical value of 0.17?y?0.60.
    Type: Application
    Filed: January 1, 2010
    Publication date: November 3, 2011
    Applicants: CANON KABUSHIKI KAISHA, SOPHIA UNIVERSITY, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Makoto Kubota, Toshihiro Ifuku, Hiroshi Funakubo, Keisuke Yazawa, Hiroshi Uchida, Takashi Iijima, Bong-yeon Lee