Patents by Inventor Kazushige Kawashita

Kazushige Kawashita 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: 8999493
    Abstract: A necessary and sufficient adhesive force of an adhesive agent layer is certainly kept while the dot diameter of the adhesive agent is made smaller and the thickness of the adhesive agent layer is made smaller. For the purpose, in an adhesive product, comprising an adhesive agent layer in which dots of a dot-form adhesive agent 12 are intermittently arranged, and a base material 11 which supports the adhesive agent layer, the dot diameter of the adhesive agent 12 is made into a very small value of less than 1.5 mm, and the thickness of the adhesive agent layer is set to less than 25 ?m while the area ratio that is the proportion of an area where the adhesive agent 12 occupies per unit area of the base material 11 is set to 0.7 or more.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: April 7, 2015
    Assignee: Kokuyo Co., Ltd.
    Inventors: Hiroyuki Kasahara, Kazushige Kawashita, Hideomi Yamamoto, Junichi Ohashi
  • Publication number: 20110250408
    Abstract: A necessary and sufficient adhesive force of an adhesive agent layer is certainly kept while the dot diameter of the adhesive agent is made smaller and the thickness of the adhesive agent layer is made smaller. For the purpose, in an adhesive product, comprising an adhesive agent layer in which dots of a dot-form adhesive agent 12 are intermittently arranged, and a base material 11 which supports the adhesive agent layer, the dot diameter of the adhesive agent 12 is made into a very small value of less than 1.5 mm, and the thickness of the adhesive agent layer is set to less than 25 ?m while the area ratio that is the proportion of an area where the adhesive agent 12 occupies per unit area of the base material 11 is set to 0.7 or more.
    Type: Application
    Filed: December 14, 2009
    Publication date: October 13, 2011
    Inventors: Hiroyuki Kasahara, Kazushige Kawashita, Hideomi Yamamoto, Junichi Ohashi
  • Publication number: 20100260979
    Abstract: The adhesive sheet according to the present invention includes a sheet body, and a geometry adhesive portion forming geometry of a letter or a figure by aggregating and arranging adhesive dots different in dot diameter, which are intermittently applied onto the sheet body. Moreover, the adhesive sheet includes a background adhesive portion made of the adhesive dots intermittently arranged around the geometry adhesive portion.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 14, 2010
    Applicant: KOKUYO CO., LTD.
    Inventors: Keiji Kai, Kazushige Kawashita, Hiroyuki Kasahara
  • Patent number: 7713606
    Abstract: An adhesive product which has excellent glue cutting performance and provides an excellent finish to the pasted portion while effectively maintaining security is provided. An adhesive layer 10 is formed through pattern application, where an adhesive 100 is intermittently placed on the surface of a film 12, so that a broken paper phenomenon, such that the surface layer portion of a flap F1 or the vicinity of opening F2 adheres to the surface of the adhesive layer 10, and a white envelope F is ripped in the direction of the thickness, can be caused when a peeling movement for peeling the flap F1 from a state where the white envelope F is sealed via the adhesive layer 10.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: May 11, 2010
    Assignee: Kokuyo S&T Co., Ltd.
    Inventors: Hiroyuki Kasahara, Kazushige Kawashita, Yoshiaki Urahama
  • Publication number: 20100092773
    Abstract: A pressure-sensitive adhesive is constituted at least by one or two kinds or more of a polymer and a tackifier, the polymer is selected from the polymer obtained by polymerizing olefin unsaturated-group containing polymerizable monomer by an ordinary method, a copolymer obtained by copolymerizing a monomer mixture containing two or more types of olefin unsaturated-group containing polymerizable monomer by an ordinary method, and natural rubber, wherein the pressure-sensitive adhesive for available affixation has substantially no initial tack value and exerts adhesion by pressurization processing.
    Type: Application
    Filed: September 28, 2006
    Publication date: April 15, 2010
    Inventors: Hiroyuki Kasahara, Kazushige Kawashita, Koji Kishimoto, Yoshiaki Urahama
  • Publication number: 20090202818
    Abstract: In order to provide an adhesive product capable of effectively maintaining security, the present invention is a pressure sensitive transfer tape (1) in which an acrylic adhesive is adopted as an adhesive (100) in which diblock copolymer 101: 100 parts by weight and triblock copolymer 102: 100 parts by weight consisting of methylmethacrylate polymer block (M) and butylacrylate polymer block (A), acrylic oligomer-based tackifier 103: 40 to 60 parts by weight, and rosin ester-based tackifier 104: 200 parts by weight are mixed.
    Type: Application
    Filed: January 6, 2006
    Publication date: August 13, 2009
    Applicants: KOKUYO S&T CO., LTD., KURARAY CO., LTD.
    Inventors: Hiroyuki Kasahara, Kazushige Kawashita, Toyoaki Kurihara, Tetsuya Kunimune, Kenichi Hamada
  • Publication number: 20090025866
    Abstract: A transfer-type adhesive material A is obtained by applying a adhesive 1 composed of a adhesive composition 10 (not shown) containing an acrylic polymer or a styrene-based polymer onto a release substrate in an intermittent pattern. The present invention includes pressing a nut N and a washer W as hard articles against the above-mentioned transfer-type adhesive material A, transferring a plurality of dots 1d of the adhesive 1 onto pressed surfaces Na and Wa of the nut N and the washer W, and applying onto a target surface C1b the plurality of dots 1d of the adhesive 1 transferred onto the pressed surfaces Na and Wa.
    Type: Application
    Filed: February 6, 2007
    Publication date: January 29, 2009
    Inventors: Hiroyuki Kasahara, Kazushige Kawashita, Akiko Ide, Yoshihiro Morishita, Toyoaki Kurihara
  • Publication number: 20060165936
    Abstract: An adhesive product which has excellent glue cutting performance and provides an excellent finish to the pasted portion while effectively maintaining security is provided. An adhesive layer 10 is formed through pattern application, where an adhesive 100 is intermittently placed on the surface of a film 12, so that a broken paper phenomenon, such that the surface layer portion of a flap F1 or the vicinity of opening F2 adheres to the surface of the adhesive layer 10, and a white envelope F is ripped in the direction of the thickness, can be caused when a peeling movement for peeling the flap F1 from a state where the white envelope F is sealed via the adhesive layer 10.
    Type: Application
    Filed: December 20, 2005
    Publication date: July 27, 2006
    Applicant: Kokuyo S&T Co., Ltd.
    Inventors: Hiroyuki Kasahara, Kazushige Kawashita, Yoshiaki Urahama