Patents by Inventor Tatuya Isomura

Tatuya Isomura 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).

  • Flash discharge tube and method for producing the same
    Patent number: 6604973
    Abstract: In an anode-side assembling process, a first end of a glass tube is fused to a rearward end of an electrode bar secured to an anode-side lead to produce a primary sealed product. In a cathode-side assembling process, a ring-shaped cathode is secured by caulking to a forward end portion of an electrode bar secured to a forward end of a cathode-side lead to produce a cathode member. In an assembling process, a second end of the glass tube of the primary sealed product is fused to a rearward end of the electrode bar secured to the cathode-side lead of the cathode member to produce a xenon discharge tube. A trigger electrode, which is composed of a transparent conductive film, is formed on a surface of the glass tube so that the light-transmissive sealed tube-coating ratio specified by the transparent conductive film is within a range of 5 to 30%.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: August 12, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shouji Nishida, Hideaki Takeuchi, Tsutomu Tobita, Tatuya Isomura
  • Flash discharge tube and method for producing the same
    Publication number: 20010041491
    Abstract: In an anode-side assembling process, a first end of a glass tube is fused to a rearward end of an electrode bar secured to an anode-side lead to produce a primary sealed product. In a cathode-side assembling process, a ring-shaped cathode is secured by caulking to a forward end portion of an electrode bar secured to a forward end of a cathode-side lead to produce a cathode member. In an assembling process, a second end of the glass tube of the primary sealed product is fused to a rearward end of the electrode bar secured to the cathode-side lead of the cathode member to produce a xenon discharge tube. A trigger electrode, which is composed of a transparent conductive film, is formed on a surface of the glass tube so that the light-transmissive sealed tube-coating ratio specified by the transparent conductive film is within a range of 5 to 30%.
    Type: Application
    Filed: May 2, 2001
    Publication date: November 15, 2001
    Inventors: Shouji Nishida, Hideaki Takeuchi, Tsutomu Tobita, Tatuya Isomura
  • Flash discharge tube having exterior trigger electrode
    Patent number: 6268697
    Abstract: In an anode-side assembling process, a first end of a glass tube is fused to a rearward end of an electrode bar secured to an anode-side lead to produce a primary sealed product. In a cathode-side assembling process, a ring-shaped cathode is secured by caulking to a forward end portion of an electrode bar secured to a forward end of a cathode-side lead to produce a cathode member. In an assembling process, a second end of the glass tube of the primary sealed product is fused to a rearward end of the electrode bar secured to the cathode-side lead of the cathode member to produce a xenon discharge tube. A trigger electrode, which is composed of a transparent conductive film, is formed on a surface of the glass tube so that the light-transmissive sealed tube-coating ratio specified by the transparent conductive film is within a range of 5 to 30%.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: July 31, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shouji Nishida, Hideaki Takeuchi, Tsutomu Tobita, Tatuya Isomura