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:
Jun. 13, 1989
Filed:
Feb. 09, 1988
Applicant:
Inventors:
Hajime Kitamura, Chiba, JP;
Tamaki Iida, Tokyo, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 38 ; 427377 ;
Abstract
A microtome blade made of, for example, sapphire is imparted with greatly improved cutting power as well as durability and anti-corrosion resistance by providing a coating layer of diamond thereon. Such a coating layer can be formed by subjecting a base blade to a treatment of plasma-induced chemical vapor deposition of diamond in an atmosphere of a gaseous mixture of a hydrocarbon compound and hydrogen followed by a heat treatment at 700.degree.-1300.degree. C. to expel any adsorbed impurities in the diamond layer.