Patents by Inventor Tomohiro Kaniwa

Tomohiro Kaniwa 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).

  • Tray for carrying magnetoresistive head of magnetic disk
    Patent number: 6686009
    Abstract: A tray for carrying magnetoresistive heads of magnetic disks which is obtained by molding a resin composition comprising 100 parts by weight of a thermoplastic resin material and, incorporated therein, from 0.1 to 8 parts by weight of carbon fibrils having a fiber diameter of 100 nm or smaller and a fiber length/fiber diameter ratio of 5 or larger. The tray has a stable surface resistivity in the range of from 104 to 1012 &OHgr;/□, has an even surface state, and hardly generates particles upon scratching, wearing, or cleaning.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: February 3, 2004
    Assignee: Yukadenshi Co., Ltd.
    Inventors: Shigeru Tanaka, Koichi Sagisaka, Tomohiro Kaniwa, Mitsuo Sato, Michiaki Sakatoku
  • Tray for carrying magnetoresistive head of magnetic disk
    Publication number: 20020060314
    Abstract: A tray for carrying magnetoresistive heads of magnetic disks which is obtained by molding a resin composition comprising 100 parts by weight of a thermoplastic resin material and, incorporated therein, from 0.1 to 8 parts by weight of carbon fibrils having a fiber diameter of 100 nm or smaller and a fiber length/fiber diameter ratio of 5 or larger. The tray has a stable surface resistivity in the range of from 104 to 1012 &OHgr;/□, has an even surface state, and hardly generates particles upon scratching, wearing, or cleaning.
    Type: Application
    Filed: December 10, 2001
    Publication date: May 23, 2002
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Shigeru Tanaka, Koichi Sagisaka, Tomohiro Kaniwa, Mitsuo Sato, Michiaki Sakatoku