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:
Jun. 27, 2000
Filed:
Mar. 11, 1998
Applicant:
Inventor:
Hirofumi Sugikawa, Toyonaka, JP;
Assignee:
Katayama Special Industries, Ltd., Osaka-Fu, JP;
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419-2 ; 419-9 ;
Abstract
Metal powders are spread on a feeding belt or a supporting sheet which is continuously fed; the feeding belt or the supporting sheet on which the metal powders have been spread is passed through a sintering oven; and the metal powders are sintered, with adjacent uncompressed metal powders in contact with each other partly and gaps present therebetween. Consequently, contact portions of the metal powders are integrated with each other and the gaps are formed as fine pores.