Patents Assigned to Koya-Sha Co., Ltd.
  • Super abrasive grinding tool element and grinding tool
    Patent number: 4949511
    Abstract: This invention relates to a super abrasive grinding tool element and grinding tools having the element, the element being formed by bonding, with a resin system adhesive, super abrasive grains of diamond or the like to a mesh base so that the openings of the mesh base are kept open. In the element, there is sufficient cutting edge projection, a sufficient amount of coolant can be supplied, clogging is unlikely to occur, and high cutting efficiency can be maintained for a long time.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: August 21, 1990
    Assignees: Toshiba Tungaloy Co., Ltd., Koya-Sha Co., Ltd., Science and Creative Co., Ltd.
    Inventors: Yukio Endo, Kazuyuki Mitani, Tadashi Matsuoka, Masayoshi Ueki, Norio Otake