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, 1999
Filed:
Nov. 21, 1995
Applicant:
Inventors:
Hirotaka Imayama, Kawasaki, JP;
Katsuya Fukasawa, Yokohama, JP;
Masayasu Fujisawa, Naka-gun, JP;
Yoshiki Hagiwara, Hadano, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24C / ;
U.S. Cl.
CPC ...
451-2 ; 451 78 ; 451 38 ;
Abstract
A fine grain milling method mixes powder into a high-pressure fluid, and injects the mixture to a work material covered with a mask to form the work material to a desired shape. In addition, the method injects anther high-pressure fluid to the powder adhered to the work material to remove the powder. The method can accurately transfer the mask pattern to the work material.