Patents Assigned to Nippon Kagaku Togyo Co., Ltd.
  • Method for plastic working of ceramics
    Patent number: 4752427
    Abstract: A method for plastic working of ceramics comprising the steps of causing a sintered or pre-sintered body of polycrystalline ceramics containing at 20.degree. C. tetragonal-phase zirconia crystals to undergo plastic deformation at a temperature of about 1,000.degree. C. to about 1,600.degree. C. and then heating the ceramics body at a temperature of about 1,300.degree. C. to about 1,650.degree. C.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: June 21, 1988
    Assignees: Agency of Industrial Science and Technology, Nippon Kagaku Togyo Co., Ltd.
    Inventors: Fumihiro Wakai, Shuji Sakaguchi, Hiroshi Ohnishi, Hiroshi Tomatsu