Patents by Inventor Ryoichi Yamanaka

Ryoichi Yamanaka 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).

  • STRUCTURE FOR STRAIN DETECTION
    Publication number: 20170363487
    Abstract: A structure for strain detection is provided with a ceramic main body which is attached to a detection target, in which strain is to be detected, and a stress concentrated section which is formed in the main body and which is fractured at a predetermined strain or greater. Assuming the dimension of the entire main body in one direction is represented by Lm and the dimension of the stress concentrated section in the one direction is represented by Lc, then it holds that Lc<Lm. The stress concentrated section is constituted by a thin-walled portion in the one direction.
    Type: Application
    Filed: August 22, 2017
    Publication date: December 21, 2017
    Applicant: NGK Insulators, Ltd.
    Inventors: Kenichi KURIBAYASHI, Toshiyuki Konishi, Masaki Sue, Atsuo Kondo, Keiichiro Watanabe, Shingo Iwasaki, Ryoichi Yamanaka, Yoshinobu Watanabe
  • Process for removing water from water soluble polymer
    Patent number: 4105510
    Abstract: The invention relates to an improved process for removing water, under elevated temperature, from aqueous gel of water soluble polymer, such as polymer or copolymer of acrylamide and/or quaternary ammonium salts of dialkylaminoamlkylmethacrylate, to prevent from the deterioration of polymer properties. The process is accomplished by addition of polyhydric phenols, benzoquinones or derivatives thereof prior to removal of water.
    Type: Grant
    Filed: November 24, 1976
    Date of Patent: August 8, 1978
    Assignees: Kyoritsu Yuki Co., Ltd., Mitsubishi Chemical Industries Ltd.
    Inventors: Atsuo Tago, Ryoichi Yamanaka, Susumu Matsumoto