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:
May. 09, 1989
Filed:
May. 05, 1987
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; C23C / ; C23F / ;
U.S. Cl.
CPC ...
427 531 ; 156345 ; 156643 ; 156646 ; 156662 ; 118 501 ; 118722 ; 118624 ;
Abstract
A surface treatment method, wherein gas particles are applied to a solid surface of a substrate to treat the same surface, comprising the step of applying to the gas particles the narrow line width laser light capable of exciting or decomposing only such gas particles that have velocities in a predetermined range.