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. 19, 1999
Filed:
May. 22, 1997
Applicant:
Inventors:
Motokazu Yuasa, Nara, JP;
Takuya Yara, Mishima-gun, JP;
Assignee:
Sekisui Chemical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912141 ; 21912143 ; 21912154 ; 1187 / ; 20419212 ;
Abstract
In a glow-discharge plasma treatment, a substrate is disposed between two opposing electrodes, at least one electrode being covered by a solid dielectric at an opposing surface. An electric field is imposed between the electrodes in an atmospheric pressure. The electric field is pulse modulated such that an onset time, prefeably an offset time as well, of a pulse is less than 100 .mu.s, and field intensity is 1 to 100 kV/cm. Thus, a stable and evenly dispersed discharge-plasma is obtained, which can treat an outer to surface of the substrate.