Patents by Inventor Kimikazu Kawahara

Kimikazu Kawahara 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).

  • Button structure for a timepiece and a timepiece having this button structure
    Patent number: 7335841
    Abstract: A timepiece button structure has a base having a first cavity, a first button member, a second button member having a second cavity part, first and second urging members, and first and second movement-limiting members. The second button member is disposed to protrude from and recede into the first cavity part with the second urging member urging the second button member in the direction protruding from the first cavity part and the second movement-limiting member limiting movement in the protrusion direction. The first button member is disposed to protrude from and recede into the second cavity part with the first urging member urging the first button member in the direction protruding from the second cavity part and the first movement-limiting member limiting movement in the protrusion direction.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: February 26, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Noriaki Ozawa, Kimikazu Kawahara
  • Button structure for a timepiece and a timepiece having this button structure
    Publication number: 20070215442
    Abstract: A timepiece button structure has a base having a first cavity, a first button member, a second button member having a second cavity part, first and second urging members, and first and second movement-limiting members. The second button member is disposed to protrude from and recede into the first cavity part with the second urging member urging the second button member in the direction protruding from the first cavity part and the second movement-limiting member limiting movement in the protrusion direction. The first button member is disposed to protrude from and recede into the second cavity part with the first urging member urging the first button member in the direction protruding from the second cavity part and the first movement-limiting member limiting movement in the protrusion direction.
    Type: Application
    Filed: February 28, 2007
    Publication date: September 20, 2007
    Applicant: Seiko Epson Corporation
    Inventors: Noriaki Ozawa, Kimikazu Kawahara