Patents by Inventor Morinobu Kawamura

Morinobu Kawamura 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).

  • Low friction sleeve bearing
    Publication number: 20030179963
    Abstract: A sleeve bearing for use in water, the sleeve bearing having a shaft and a sleeve. The sleeve or the shaft is made of a synthetic resin composition obtained by uniformly dispersing fine powder of RBC or CRBC in a resin. The sleeve bearing having a low coefficient of friction in water.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 25, 2003
    Applicant: Minebea Co., Ltd.
    Inventors: Kazuo Hokkirigawa, Motoharu Akiyama, Morinobu Kawamura
  • CRB or CRBC fine powder dispersing foam-molded synthetic resin material, method for preparing same and uses thereof
    Publication number: 20030134104
    Abstract: A foam-molded synthetic resin material in which a RBC or CRBC fine powder and bubbles are homogeneously dispersed. There is provided an electrically conductive molded resin material of sufficient porosity by using a fine powder of RB ceramics (RBC) or CRB ceramics (CRBC), in which a surface thereof is not covered with a skin layer while an electrically conductive material is directly bared on the surface, and a method for preparing same and uses thereof.
    Type: Application
    Filed: December 12, 2002
    Publication date: July 17, 2003
    Inventors: Kazuo Hokkirigawa, Motoharu Akiyama, Morinobu Kawamura