Patents by Inventor Yasuhiro Kurihara

Yasuhiro Kurihara 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).

  • Waterproof sound-transmissive cover, waterproof sound-transmissive cover member and acoustic device
    Patent number: 10798474
    Abstract: The waterproof sound-transmissive cover is characterized by providing a frequency response curve with a difference between a maximum sound pressure level and a minimum sound pressure level of 13.0 dB or less in the range of frequencies from 3 kHz to 8 kHz, and an insertion loss at 1 kHz of less than 14.0 dB, and said cover comprising: a porous film having (1) a water pressure resistance measured according to JIS L1092 water penetration test method B (high pressure method) of 20 kPa or more, and air permeability measured according to JIS L1096 method A (Frazier type method) of 3.0 cc/cm2·sec or more, and (2) a tensile strength measured according to ASTM standards D412 of 5.5N or more.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: October 6, 2020
    Assignee: W. L. Gore & Associates, Co., Ltd.
    Inventors: Yasuhiro Kurihara, Ryan Kenaley, Nobuyuki Osugi, Takayuki Saeki, Ryosuke Nakamura, Takafumi Namba
  • WATERPROOF SOUND-TRANSMISSIVE COVER, WATERPROOF SOUND-TRANSMISSIVE COVER MEMBER AND ACOUSTIC DEVICE
    Publication number: 20190268679
    Abstract: The waterproof sound-transmissive cover is characterized by providing a frequency response curve with a difference between a maximum sound pressure level and a minimum sound pressure level of 13.0 dB or less in the range of frequencies from 3 kHz to 8 kHz, and an insertion loss at 1 kHz of less than 14.0 dB, and said cover comprising: a porous film having (1) a water pressure resistance measured according to JIS L1092 water penetration test method B (high pressure method) of 20 kPa or more, and air permeability measured according to JIS L1096 method A (Frazier type method) of 3.0 cc/cm2·sec or more, and (2) a tensile strength measured according to ASTM standards D412 of 5.5N or more.
    Type: Application
    Filed: July 7, 2017
    Publication date: August 29, 2019
    Inventors: Yasuhiro Kurihara, Ryan Kenaley, Nobuyuki Osugi, Takayuki Saeki, Ryosuke Nakamura, Takafumi Namba