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:
Oct. 01, 1996
Filed:
Mar. 05, 1993
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 82 ; 451 89 ; 451 78 ;
Abstract
A fine grain milling method which mixes powder into a high-pressure fluid, and injects the mixture to a workpiece covered with a mask or pattern to process the workpiece to a desired shape. Another high-pressure fluid is injected to remove the powder adhering to the workpiece thereby enabling an accurate transfer of the mask or pattern to the workpiece.