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:
Jan. 22, 1991
Filed:
May. 04, 1989
Applicant:
Inventors:
Masakatu Sakamoto, Hachiohji, JP;
Youichi Yaguchi, Tokyo, JP;
Hiroaki Toshima, Ibaragi, JP;
Toshiroh Kotaki, Tokyo, JP;
Assignees:
Kabushiki Kaisha Kenwood, Tokyo, JP;
Namiki Precision Jewel Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; C23C / ;
U.S. Cl.
CPC ...
427 34 ; 427249 ; 264 81 ;
Abstract
A crystalline diamond film is formed on a thin substrate. Energy is applied by a thermal plasma torch to a gas mixture to deposit carbon particles onto the substrate. The substrate is positioned on a pedestal with a cooling facility in which an intermediate layer of thermally conductive powder is interposed between the substrate and the pedestal.