Patents Assigned to Japan as represented by the Director General of the Agency of Industrial Science and Technology
  • Method for jointing ceramic elements
    Patent number: 4724020
    Abstract: A method for jointing ceramic elements is disclosed. Ceramic elements to be joined are arranged between a pair of torces each having a nozzle for spouting combustion gas.The joint line of ceramic elements is first heated by flames of combustion gas spouted from each nozzle and, then, a high voltage is applied between said pair of torches. Ceramic elements are joined by said heating and applying a high voltage between torches.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: February 9, 1988
    Assignee: Japan as represented by Director General, Agency of Industrial Science and Technology
    Inventors: Yoshihiro Ebata, Masanori Kohyama, Nobuyuki Tamari, Makoto Kinoshita, Ryozo Hayami, Susumu Mori, Masahiko Nozawa, Tokuzo Nishi
  • Manufacturing method of super-heat-resisting alloy material
    Patent number: 4710345
    Abstract: A manufacturing method of super-heat-resisting alloy material characterized in comprising the steps of: (1) filling and sealing the powder of Ni-based super-heat-resisting alloy in a rubber mold; (2) subjecting the powder in the rubber mold to cold isostatic pressing; (3) sintering the compact in vacuum or in gas atmosphere at a temperature of 1000.degree. C. or more so that the sintered density increases to 95% or more than the theoretical density; and (4) next, subjecting the sintered compact to hot isostatic pressing.
    Type: Grant
    Filed: April 22, 1986
    Date of Patent: December 1, 1987
    Assignee: Japan as represented by Director-General, Agency of Industrial Science & Technology
    Inventors: Yoshihiko Doi, Nobuhito Kuroishi, Shigeki Ochi, Noboru Uenishi