Patents by Inventor Hideto Kamimura

Hideto Kamimura 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).

  • Publication number: 20060199747
    Abstract: The present invention provides a conductive lubricant composition, characterized in that the composition contains a lubricating base oil (A) other than a silicone oil, and a non-metallic antistatic agent (B), and exhibits a kinematic viscosity of 25 mm2/s or less at 40° C., a viscosity index of 100 or higher, a flash point of 150° C. or higher, and a volume resistivity of 1×1010 ?·cm or less at 25° C. The invention also provides a bearing oil formed from the lubricant composition.
    Type: Application
    Filed: April 2, 2004
    Publication date: September 7, 2006
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Hideto Kamimura, Tatsuya Egawa
  • Patent number: 6815402
    Abstract: A lubricating oil composition which comprises at least one compound selected from specific cyclic organic phosphorus compounds is disclosed. The lubricating oil composition exhibits excellent extreme pressure property, seizure resistance and wear resistance and is advantageously used as bearing oil, gear oil, hydraulic oil and refrigerator oil.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: November 9, 2004
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toshinori Tazaki, Hideto Kamimura, Shuichi Sakanoue
  • Publication number: 20030125219
    Abstract: A lubricating oil composition which comprises at least one compound selected from specific cyclic organic phosphorus compounds is disclosed.
    Type: Application
    Filed: June 27, 2002
    Publication date: July 3, 2003
    Inventors: Toshinori Tazaki, Hideto Kamimura, Shuichi Sakanoue
  • Patent number: 6465400
    Abstract: The present invention relates to a lubricant composition for a high temperature of which the amount evaporated in a thin film at a high temperature is controlled and of which the fluidity is maintained for a long period of time, and it is a lubricant composition for a high temperature which is obtained by mixing a base oil composition comprising (a) 20 to 100% by weight of a specific aromatic ester and (b) 0 to 80% by weight of another base oil with (c) 0.1 to 10% by weight, based on the total amount of the lubricant composition, of an antioxidant.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: October 15, 2002
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Hideto Kamimura, Hiroshi Nagakawa