Patents by Inventor Issaku Sato

Issaku Sato 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).

  • Lead-free journal bearing
    Patent number: 6613453
    Abstract: A lead-free journal bearing includes a cylindrical ferrous backing and a bearing alloy layer comprising a bearing alloy powder consisting essentially of 7-13 mass percent of Sn, 0.7-2 mass percent of Ag, optionally at most 0.5 mass percent of molybdenum disulfide, optionally at most 2 mass percent of graphite, and a remainder of Cu sintered to an inner surface of the backing. The bearing is particularly suitable for use in construction equipment.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: September 2, 2003
    Assignee: Senju Metal Industry Co., Ltd.
    Inventors: Issaku Sato, Naoki Sato
  • Lead-free plain bearing and method for its manufacture
    Patent number: 6492033
    Abstract: A lead-free plain bearing is formed by dispersing an alloy powder formed from 7-13 mass percent of Sn, 0.1-5 mass percent of Ag, and Cu on a backing, such as a steel plate, and sintering. The alloy powder may further include one or more of 0.05-0.5 mass percent of molybdenum disulfide powder and 0.1-2 mass percent of graphite powder. The bearing surface may be rough finished by machining to a roughness of 0.3-1 &mgr;m Ra and then fine finished by polishing to a roughness of at most 0.1 &mgr;Ra.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: December 10, 2002
    Assignee: Senju Metal Industry Co., Ltd.
    Inventors: Issaku Sato, Naoki Sato
  • Lead-free journal bearing
    Publication number: 20020142186
    Abstract: A lead-free journal bearing includes a cylindrical ferrous backing and a bearing alloy layer comprising a bearing alloy powder consisting essentially of 7-13 mass percent of Sn, 0.7-2 mass percent of Ag, optionally at most 0.5 mass percent of molybdenum disulfide, optionally at most 2 mass percent of graphite, and a remainder of Cu sintered to an inner surface of the backing. The bearing is particularly suitable for use in construction equipment.
    Type: Application
    Filed: March 27, 2002
    Publication date: October 3, 2002
    Inventors: Issaku Sato, Naoki Sato
  • Lead-free plain bearing and method for its manufacture
    Publication number: 20010055695
    Abstract: A lead-free plain bearing is formed by dispersing an alloy powder formed from 7-13 mass percent of Sn, 0.1-5 mass percent of Ag, and Cu on a backing, such as a steel plate, and sintering. The alloy powder may further include one or more of 0.05-0.5 mass percent of molybdenum disulfide powder and 0.1-2 mass percent of graphite powder. The bearing surface may be rough finished by machining to a roughness of 0.3-1 &mgr;m Ra and then fine finished by polishing to a roughness of at most 0.1 &mgr;Ra.
    Type: Application
    Filed: March 19, 2001
    Publication date: December 27, 2001
    Inventors: Issaku Sato, Naoki Sato