Patents by Inventor Kazuyuki HAMATANI

Kazuyuki HAMATANI 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).

  • Acoustic wave device and communication apparatus
    Patent number: 11539342
    Abstract: The multiplexer includes a plurality of IDT electrodes on a substrate, an insulating cover located on the substrate so as to configure one or more spaces above the plurality of IDT electrodes, an antenna terminal, transmission terminal, and reception terminal which are all located on the substrate and pass through the cover, and a reinforcing layer which is located on the cover and is made of metal. By the plurality of IDT electrodes, a transmission filter located in a signal path connecting the antenna terminal and the transmission terminal and a receiving filter located in a signal path connecting the antenna terminal and the reception terminal. The reinforcing layer includes a first area part facing the transmission filter and a second area part which faces the receiving filter and is separated from the first area part.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: December 27, 2022
    Assignee: KYOCERA Corporation
    Inventors: Kazuyuki Hamatani, Hiroyuki Tanaka
  • ACOUSTIC WAVE DEVICE AND COMMUNICATION APPARATUS
    Publication number: 20190267968
    Abstract: The multiplexer includes a plurality of IDT electrodes on a substrate, an insulating cover located on the substrate so as to configure one or more spaces above the plurality of IDT electrodes, an antenna terminal, transmission terminal, and reception terminal which are all located on the substrate and pass through the cover, and a reinforcing layer which is located on the cover and is made of metal. By the plurality of IDT electrodes, a transmission filter located in a signal path connecting the antenna terminal and the transmission terminal and a receiving filter located in a signal path connecting the antenna terminal and the reception terminal. The reinforcing layer includes a first area part facing the transmission filter and a second area part which faces the receiving filter and is separated from the first area part.
    Type: Application
    Filed: July 24, 2017
    Publication date: August 29, 2019
    Inventors: Kazuyuki HAMATANI, Hiroyuki TANAKA