Patents by Inventor Yoshiyuki Asahara

Yoshiyuki Asahara 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).

  • Heat absorbing sealing method for laser glass
    Patent number: 3966447
    Abstract: A sealing method for a laser glass which provides a high bonding strength comprising applying a powder mixture of (1) a low melting glass containing an infrared absorbing component and (2) a low expansion high melting glass containing an infrared absorbing component to a laser glass and welding the powder mixture to the laser glass by heating.
    Type: Grant
    Filed: August 20, 1974
    Date of Patent: June 29, 1976
    Assignee: Hoya Glass Works, Ltd.
    Inventors: Yoshiyuki Asahara, Tetsuro Izumitani