The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2002
Filed:
Apr. 07, 2000
Satoshi Kumamoto, Mishima, JP;
Masahiko Fukuta, Numazu, JP;
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Abstract
Metal powder is filled in a through-hole of a base member and a base porous body is formed by bonding the metal powder with each other and by bonding the metal powder to the base member so that an end surface on a bearing surface of the metal powder filled in the through hole is dented toward a compressed gas supply surface and at least a part of end surface on the compressed gas supply surface of the metal powder filled in the through-hole is dented toward the bearing surface. Subsequently, surface layer powder having smaller diameter than the metal powder is filled in the recess on the bearing surface to form a surface layer porous material layer by bonding the surface layer powder with each other and by bonding the surface layer powder to the base porous body and the base member . The bearing surface is finished by removing face layer of the surface porous material layer by machining.