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:
Sep. 07, 1993
Filed:
Oct. 21, 1992
Applicant:
Inventors:
Eiji Sugiyama, Toyota, JP;
Motoshi Hayashi, Toyota, JP;
Assignee:
Taiho Kogyo Co., Ltd., Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; B22F / ;
U.S. Cl.
CPC ...
428213 ; 148279 ; 148330 ; 148D / ; 428212 ; 4283073 ; 4283105 ; 4283157 ; 4283191 ; 428457 ; 428469 ;
Abstract
In the boronizing of a ferrous sintered material, the porosity of the surface to be boronized is reduced, while the interior of the ferrous sintered material is kept essentiall as sintered. The boron phase is selectively on the surface having a low porosity, resistance are attained.