Patents by Inventor Shiro Miura

Shiro Miura 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).

  • Grinding stone, process for its production and grinding method employing it
    Patent number: 6478832
    Abstract: A grinding stone using a metal material as the main material of a bonding material, which comprises: (A) abrasive grains of at least one member selected from the group consisting of diamond, cubic boron nitride, silicon carbide and aluminum oxide, (B) a bonding material made of at least one metal member selected from the group consisting of cobalt, nickel and copper, or a bonding material made of an alloy comprising at least one member selected from the group consisting of cobalt, nickel and copper, and at least one member selected from the group consisting of iron, silver, tin, zinc and tungsten, and (C) amorphous carbon as an adjuvant, wherein the abrasive grains (A) and the amorphous carbon (C) are distributed in the bonding material (B) in a sea-island structure.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: November 12, 2002
    Assignee: Fujimi Incorporated
    Inventors: Shiro Miura, Tsuyoshi Itsukaichi
  • Grinding stone, process for its production and grinding method employing it
    Publication number: 20010005664
    Abstract: A grinding stone using a metal material as the main material of a bonding material, which comprises:
    Type: Application
    Filed: December 28, 2000
    Publication date: June 28, 2001
    Applicant: FUJIMI INCORPORATED
    Inventors: Shiro Miura, Tsuyoshi Itsukaichi
  • Polishing method of goods and abrasive pad therefor
    Patent number: 5104421
    Abstract: A polishing method and abrasive pads used to polish of abrade, for example, lenses. The pad is manufactured with an abrasives such as grains of the mean diameter: 0.5-10 .mu.m of alumina, zirconium oxide, tin oxide, and cerium oxide, a kind of water-soluble cellulose ether selected from the group of hydroxypropylmethyl and the like, and a kind of insolubilizing agent such as glyoxal, citric acid, and the like. The substances above are blended and coated on a sheet-like substrate. In polishing process, only water is poured between the rotating abrasives pad and goods to be polished.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: April 14, 1992
    Assignee: Fujimi Abrasives Co., Ltd.
    Inventors: Gisaburo Takizawa, Tetsushi Senda, Shiro Miura