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:
Apr. 30, 1991
Filed:
Sep. 18, 1989
Applicant:
Inventors:
Senri Ikeda, Sendai-shi, Miyagi-ken, JP;
Sakae Saito, Sendai-shi, Miyagi-ken, JP;
Shuji Hanada, Sendai, JP;
Hironobu Hoshi, Tokyo, JP;
Assignees:
Nippon Stainless Steel Co., Ltd., Tokyo, JP;
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; C22B / ;
U.S. Cl.
CPC ...
148 / ; 29599 ; 148 / ; 148133 ; 428930 ;
Abstract
A method for manufacturing a hard-to-work alloy article comprises the steps of: preparing a laminate member comprising a plurality of layers of different metals in a stoichiometric ratio for the intended alloy composition; dividing the laminate member into pieces; combining the pieces to a body for plastic deformation; subjecting the body to plastic deformation under pressure to form an article having a given shape and dimensions; and applying a thermal diffusion treatment to the article.