Patents by Inventor Shuji Furukawa

Shuji Furukawa 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).

  • Patent number: 8603611
    Abstract: The present invention provides a transparent planar body and a transparent touch switch that can improve visibility. Specifically, the transparent planar body (1) has a patterned transparent conductive film (12) on at least one surface of a transparent substrate (11). This transparent planar body (1) comprises a transmittance-adjusting layer for equalizing the transmission spectrum of light transmitted through a patterned region wherein the transparent conductive film (12) is provided via the transparent substrate (11) with that transmitted through a non-patterned region wherein the transparent conductive film (12) is not provided via the transparent substrate (11).
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: December 10, 2013
    Assignee: Gunze Limited
    Inventors: Naohiro Wakabayashi, Tsutomu Yamada, Kuniaki Sasaki, Shuji Furukawa, Keiji Tsukamoto
  • Publication number: 20090160819
    Abstract: The present invention is an inner touch panel in which a 1st and a 2nd planer member, each having an electrode disposed on one surface thereof, oppose each other with a fixed space therebetween. The electrodes face each other across the space, and a polarizing plate is stacked on the other surface of the 1st planer member. At least one of the 1st and the 2nd planer members is a film made of a siloxane crosslinking acrylic silicone resin. Here, in the case of having a thickness in the range of 0.1 mm and 0.4 mm, the film maintains, after heat treatment at 120° C. for 1000 hours, 96% or more of the visible light transmittance at a wavelength of 400 nm before the heat treatment.
    Type: Application
    Filed: September 7, 2005
    Publication date: June 25, 2009
    Inventors: Kuniaki Sasaki, Kunitomo Tsureyama, Shuji Furukawa, Hirotoshi Sato, Tsutomu Yamada, Keiji Tsukamoto, Masanori Yamamoto, Takumi Sakamoto, Hideaki Mizumoto
  • Publication number: 20080138589
    Abstract: The present invention provides a transparent planar body and a transparent touch switch that can improve visibility. Specifically, the transparent planar body (1) has a patterned transparent conductive film (12) on at least one surface of a transparent substrate (11). This transparent planar body (1) comprises a transmittance-adjusting layer for equalizing the transmission spectrum of light transmitted through a patterned region wherein the transparent conductive film (12) is provided via the transparent substrate (11) with that transmitted through a non-patterned region wherein the transparent conductive film (12) is not provided via the transparent substrate (11).
    Type: Application
    Filed: May 24, 2006
    Publication date: June 12, 2008
    Applicant: GUNZE LIMITED
    Inventors: Naohiro Wakabayashi, Tsutomu Yamada, Kuniaki Sasaki, Shuji Furukawa, Keiji Tsukamoto
  • Patent number: 6507337
    Abstract: The primary object of the present invention is to provide a touch panel which has an excellent contact level between a undercoat layer and a substrate on which the undercoat layer is formed. The secondary object of the present invention to provide a touch panel which is lightweight and provided with a wide operating temperature and impact resistance. The primary object is achieved by providing a metal layer between a conductive-layer forming member and an undercoat layer, the metal layer being formed from a single metal element or an alloy of metal elements. The secondary object of the present invention is achieved by using an amorphous polyolefine base resin sheet for forming conductive-layer forming members of the touch and display substrates and using a material for forming a supporting member so that a difference between linear expansion coefficients of the supporting member and each of the conductive-layer forming members is kept within 1×10−5/° C.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: January 14, 2003
    Assignee: Gunze Limited
    Inventors: Hirotoshi Sato, Kazuhiro Noda, Shuji Furukawa, Kohtaro Tanimura