Patents by Inventor Mitsuaki Hakamata

Mitsuaki Hakamata 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: 20110052112
    Abstract: The present invention aims to provide a highly heat-resistant sliding member for thrust bearing which can be manufactured at a low cost through formation of an intermediate layer by a conversion treating method for cost reduction, includes a chemical conversion coating formed on an iron-base member and a resin film containing a thermosetting resin and a solid lubricant which is formed on the chemical conversion coating, and can resist to high temperatures of 200° C. or higher. And the invention is concerned with the sliding member for thrust bearing, characterized by including an iron-base member performed shot blast treatment on which the chemical conversion coating of zinc calcium phosphate is formed and a resin film containing a thermosetting resin requiring baking at temperatures of 200° C. or higher and the solid lubricant is further formed.
    Type: Application
    Filed: December 17, 2008
    Publication date: March 3, 2011
    Applicant: Taiho Kogyo Co., Ltd.
    Inventors: Kyouhei Yamane, Mitsuaki Hakamata, Norihiro Sakamoto
  • Publication number: 20100261625
    Abstract: An object of the invention is to provide a composition for a sliding member capable of forming a lubricating film which does not occur large cracks in the lubricating film formed even if the formed lubricating film is pressed and slid, large peeling off of the lubricating film is restrained from occurring, and improved in abrasion resistance. The invention provides the composition for the sliding member containing a base resin and nano metal particles softer than the counterpart material of sliding, wherein the content of the soft nano metal particles is 5 vol % or less.
    Type: Application
    Filed: September 26, 2008
    Publication date: October 14, 2010
    Applicant: TAIHO KOGYO CO., LTD.
    Inventor: Mitsuaki Hakamata
  • Patent number: 6921205
    Abstract: A slide member which is excellent in the initial running-in property and can provide an excellent sliding property even under a strict sliding condition and, in particular, a slide member with a solid lubrication coating film which is excellent not only in the friction property but also in the wear resistance under the fluid lubrication, boundary lubrication and dry lubrication conditions. The slide member includes a solid lubrication coating film on a flat-plate-shaped base member, characterized in that, in the surface of the slide member, there are formed a plurality of concentrical grooves extending in the peripheral direction of the slide member surface, and, between the mutually adjoining ones of the grooves, there are formed ridge portions respectively.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: July 26, 2005
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Hiroshi Kanayama, Mitsuaki Hakamata, Yoshio Kumada
  • Publication number: 20050139064
    Abstract: The sliding properties of a sliding material which comprises fluorine-plastic and binder resin are improved, such that it withstands high speed and high load and varying sliding conditions from the lubricating-oil free condition to the lubricating-oil condition and vice versa. A novel sliding material comprises fluorine-plastic particles having a flat ratio of from 1.5 to 10 in terms of an average aspect ratio and binder resin.
    Type: Application
    Filed: December 22, 2004
    Publication date: June 30, 2005
    Inventors: Mitsuaki Hakamata, Yasunori Kabeya, Hiroshi Kanayama
  • Publication number: 20030111511
    Abstract: It is an object of the invention to provide a slide member which is excellent in the initial running-in property and can provide an excellent sliding property even under a strict sliding condition and, in particular, a slide member with a solid lubrication coating film which is excellent not only in the friction property but also in the wear resistance under the fluid lubrication, boundary lubrication and dry lubrication conditions.
    Type: Application
    Filed: November 14, 2002
    Publication date: June 19, 2003
    Inventors: Hiroshi Kanayama, Mitsuaki Hakamata, Yoshio Kumada