Patents by Inventor MAKOTO KUROZAWA

MAKOTO KUROZAWA 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).

  • Speaker diaphragm, speaker, speaker diaphragm manufacturing method, electronic device, and mobile body apparatus
    Patent number: 11582557
    Abstract: A speaker diaphragm includes an edge formed from an elastomer, and a diaphragm body that is to be joined to the edge. A joint between the edge and the diaphragm body includes a melting portion between the edge and the diaphragm body.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: February 14, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tetsuya Koyanagi, Tetsushi Itano, Kazuaki Nishimura, Makoto Kurozawa, Ryouichi Uemoto, Hiroki Sano
  • SPEAKER DIAPHRAGM, SPEAKER, SPEAKER DIAPHRAGM MANUFACTURING METHOD, ELECTRONIC DEVICE, AND MOBILE BODY APPARATUS
    Publication number: 20210306755
    Abstract: A speaker diaphragm includes an edge formed from an elastomer, and a diaphragm body that is to be joined to the edge. A joint between the edge and the diaphragm body includes a melting portion between the edge and the diaphragm body.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tetsuya KOYANAGI, Tetsushi ITANO, Kazuaki NISHIMURA, Makoto KUROZAWA, Ryouichi UEMOTO, Hiroki SANO
  • Loudspeaker diaphragm, loudspeaker, and production method for loudspeaker diaphragm
    Patent number: 10484794
    Abstract: A loudspeaker diaphragm includes resin and hollow glass member particles contained in the resin. Further, a loudspeaker includes the above-described loudspeaker diaphragm, a magnetic circuit, a frame connected to the magnetic circuit, and a voice coil body having one end connected to the loudspeaker diaphragm and the other end disposed inside a magnetic gap in the magnetic circuit.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: November 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tetsushi Itano, Seiji Takagi, Kenji Endou, Kazuaki Nishimura, Makoto Kurozawa
  • LOUDSPEAKER DIAPHRAGM, LOUDSPEAKER, AND PRODUCTION METHOD FOR LOUDSPEAKER DIAPHRAGM
    Publication number: 20180324526
    Abstract: A loudspeaker diaphragm includes resin and hollow glass member particles contained in the resin. Further, a loudspeaker includes the above-described loudspeaker diaphragm, a magnetic circuit, a frame connected to the magnetic circuit, and a voice coil body having one end connected to the loudspeaker diaphragm and the other end disposed inside a magnetic gap in the magnetic circuit.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 8, 2018
    Inventors: TETSUSHI ITANO, SEIJI TAKAGI, KENJI ENDOU, KAZUAKI NISHIMURA, MAKOTO KUROZAWA