Patents by Inventor Masatoshi Hirohashi

Masatoshi Hirohashi 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).

  • Discharge lamp and method of making same
    Patent number: 7595592
    Abstract: A discharge lamp can be configured to include a glass tube bulb; a pair of discharge electrodes arranged within the glass tube bulb; and metal foils enclosed within sealing portions at both axial ends of the glass tube bulb so as to connect the discharge electrodes and externally extending lead wires. The metal foils can be provided with cuts and/or holes of various shapes and sizes acting as a stress alleviating portion for alleviating stress due to temperature variations.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: September 29, 2009
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Masaaki Muto, Masatoshi Hirohashi, Toshiyuki Nagahara
  • Discharge lamp and method of making same
    Publication number: 20050200279
    Abstract: A discharge lamp can be configured to include a glass tube bulb; a pair of discharge electrodes arranged within the glass tube bulb; and metal foils enclosed within sealing portions at both axial ends of the glass tube bulb so as to connect the discharge electrodes and externally extending lead wires. The metal foils can be provided with cuts and/or holes of various shapes and sizes acting as a stress alleviating portion for alleviating stress due to temperature variations.
    Type: Application
    Filed: November 5, 2004
    Publication date: September 15, 2005
    Inventors: Masaaki Muto, Masatoshi Hirohashi, Toshiyuki Nagahara