Patents by Inventor Tomohito Yuasa

Tomohito Yuasa 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).

  • Adhesive sheet and method for manufacturing adhesive sheets
    Patent number: 9011624
    Abstract: A method for manufacturing an adhesive sheet according to the present invention is a method for manufacturing an adhesive sheet including a long peeling base material 1 and an adhesive layer 2 provided on the peeling base material 1 in the form of an island, the method including a peeling step of, after laminating a long adhesive layer 2 on the peeling base material 1, peeling off an unnecessary portion 6 of the adhesive layer 2 so that a predetermined portion of the adhesive layer is left on the peeling base material 1 in the form of an island, wherein, in the peeling step, the width W of a narrow portion 8, which is the narrowest in width in a short direction of the unnecessary portion 6 of the adhesive layer 2, is adjusted so that the breaking strength in the narrow portion 8 is 200 g or more.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: April 21, 2015
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Ryoji Furutani, Takahiro Tokuyasu, Shinya Katou, Rie Katou, Tomohito Yuasa, Kouji Komorida, Tatsuya Sakuta
  • ADHESIVE SHEET AND METHOD FOR MANUFACTURING ADHESIVE SHEETS
    Publication number: 20120171475
    Abstract: A method for manufacturing an adhesive sheet according to the present invention is a method for manufacturing an adhesive sheet including a long peeling base material 1 and an adhesive layer 2 provided on the peeling base material 1 in the form of an island, the method including a peeling step of, after laminating a long adhesive layer 2 on the peeling base material 1, peeling off an unnecessary portion 6 of the adhesive layer 2 so that a predetermined portion of the adhesive layer is left on the peeling base material 1 in the form of an island, wherein, in the peeling step, the width W of a narrow portion 8, which is the narrowest in width in a short direction of the unnecessary portion 6 of the adhesive layer 2, is adjusted so that the breaking strength in the narrow portion 8 is 200 g or more.
    Type: Application
    Filed: July 9, 2010
    Publication date: July 5, 2012
    Inventors: Ryoji Furutani, Takahiro Tokuyasu, Shinya Katou, Rie Katou, Tomohito Yuasa, Kouji Komorida, Tatsuya Sakuta