Patents by Inventor Toru Aruga

Toru Aruga 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).

  • Method for manufacturing airtight vessel and image-forming apparatus using airtight vessel
    Patent number: 6860779
    Abstract: A method for manufacturing an airtight vessel seals an evacuation tube after evacuating the inside of the vessel using the evacuation tube. A getter previously disposed in the vessel is activated followed by fusing a part of the evacuation tube to seal the vessel while heating the vessel.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: March 1, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidehiko Fujimura, Toru Aruga, Masaaki Ogura
  • METHOD FOR MANUFACTURING AIRTIGHT VESSEL AND IMAGE-FORMING APPARATUS USING AIRTIGHT VESSEL
    Publication number: 20020042240
    Abstract: A method for manufacturing an airtight vessel seals an evacuation tube after evacuating the inside of the vessel using the evacuation tube. A getter previously disposed in the vessel is activated followed by fusing a part of the evacuation tube to seal the vessel while heating the vessel.
    Type: Application
    Filed: May 11, 1999
    Publication date: April 11, 2002
    Inventors: HIDEHIKO FUJIMURA, TORU ARUGA, MASAAKI OGURA
  • Apparatus for producing optical element
    Patent number: 4756737
    Abstract: There is disclosed an apparatus for producing optical elements, provided with a conveyor for transporting carriers for materials of optical elements into an evacuatable process chamber, and with a heating system for the material supported by the carrier, a forming system for the material supported by the carrier while the material is heated by the heating system, and a system for depositing a thin film to the material formed by the forming system and supported by the carrier.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: July 12, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Fumitaka Yoshimura, Masaaki Yokota, Kiyoshi Yamamoto, Toru Aruga, Isamu Shigyo