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. 27, 1989
Filed:
Mar. 31, 1987
Applicant:
Inventors:
Yoshiyuki Tsuru, Shimodate, JP;
Toshiro Okamura, Shimodate, JP;
Tetsuya Okishima, Katsuta, JP;
Masayoshi Ikeda, Katsuta, JP;
Masahiro Kawamura, Shimodate, JP;
Assignee:
Hitachi Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; C23C / ;
U.S. Cl.
CPC ...
427309 ; 427305 ; 156651 ;
Abstract
A metallic film can be formed on a ceramic surface with high adhesive strength by roughening the ceramic surface by (a) dissolving and removing a vitreous substance and (b) roughening a substance constituting mainly a first surface layer, followed by conventional electroless plating.