Patents by Inventor KATSUHIKO KOTSUGI

KATSUHIKO KOTSUGI 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).

  • Electroacoustic transducer and display apparatus
    Patent number: 10674275
    Abstract: An electroacoustic transducer includes: a diaphragm; a frame that is disposed around the diaphragm so as to surround the diaphragm; an edge that closes a space between the diaphragm and the frame in a manner of forming a membrane so as to connect the diaphragm and the frame; a base body that supports the frame and has a through sound output hole in front of the diaphragm; a magnet that is attached to the frame; and a voice coil body that is attached to the diaphragm. The frame has an annular first fitting portion that is disposed around the diaphragm so as to surround the diaphragm. The base body has a second fitting portion that fits with the first fitting portion. The electroacoustic transducer further includes a sealing member that is made of a thermoplastic substance and seals a space between the first fitting portion and the second fitting portion fitted with each other.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: June 2, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Senri Nakamoto, Yukiharu Wakiguchi, Katsuhiko Kotsugi, Kazutaka Goto
  • Electroacoustic transducer and display apparatus
    Patent number: 10492006
    Abstract: An electroacoustic transducer includes: a diaphragm; a frame that is disposed around the diaphragm so as to surround the diaphragm; an edge that closes a space between the diaphragm and the frame in a manner of forming a membrane so as to connect the diaphragm and the frame; a base body that supports the frame and has a through sound output hole in front of the diaphragm; a magnet that is attached to the frame; and a voice coil body that is attached to the diaphragm. The frame has an annular first fitting portion that is disposed around the diaphragm so as to surround the diaphragm. The base body has a second fitting portion that fits with the first fitting portion. The electroacoustic transducer further includes a sealing member that is made of a thermoplastic substance and seals a space between the first fitting portion and the second fitting portion fitted with each other.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: November 26, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Senri Nakamoto, Yukiharu Wakiguchi, Katsuhiko Kotsugi, Kazutaka Goto
  • ELECTROACOUSTIC TRANSDUCER AND DISPLAY APPARATUS
    Publication number: 20190289402
    Abstract: An electroacoustic transducer includes: a diaphragm; a frame that is disposed around the diaphragm so as to surround the diaphragm; an edge that closes a space between the diaphragm and the frame in a manner of forming a membrane so as to connect the diaphragm and the frame; a base body that supports the frame and has a through sound output hole in front of the diaphragm; a magnet that is attached to the frame; and a voice coil body that is attached to the diaphragm. The frame has an annular first fitting portion that is disposed around the diaphragm so as to surround the diaphragm. The base body has a second fitting portion that fits with the first fitting portion. The electroacoustic transducer further includes a sealing member that is made of a thermoplastic substance and seals a space between the first fitting portion and the second fitting portion fitted with each other.
    Type: Application
    Filed: June 6, 2019
    Publication date: September 19, 2019
    Inventors: Senri NAKAMOTO, Yukiharu WAKIGUCHI, Katsuhiko KOTSUGI, Kazutaka GOTO
  • ELECTROACOUSTIC TRANSDUCER AND DISPLAY APPARATUS
    Publication number: 20190020955
    Abstract: An electroacoustic transducer includes: a diaphragm; a frame that is disposed around the diaphragm so as to surround the diaphragm; an edge that closes a space between the diaphragm and the frame in a manner of forming a membrane so as to connect the diaphragm and the frame; a base body that supports the frame and has a through sound output hole in front of the diaphragm; a magnet that is attached to the frame; and a voice coil body that is attached to the diaphragm. The frame has an annular first fitting portion that is disposed around the diaphragm so as to surround the diaphragm. The base body has a second fitting portion that fits with the first fitting portion. The electroacoustic transducer further includes a sealing member that is made of a thermoplastic substance and seals a space between the first fitting portion and the second fitting portion fitted with each other.
    Type: Application
    Filed: December 27, 2016
    Publication date: January 17, 2019
    Inventors: SENRI NAKAMOTO, YUKIHARU WAKIGUCHI, KATSUHIKO KOTSUGI, KAZUTAKA GOTO