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:
Dec. 06, 1994
Filed:
Jun. 07, 1993
Akinori Iwata, Osaka, JP;
Makoto Moriyama, Osaka, JP;
Kouichi Kuwano, Osaka, JP;
Kensuke Akutsu, Osaka, JP;
Koji Ueki, Osaka, JP;
Ikuo Tochizawa, Hyogo, JP;
Hirohiko Koge, Hiroshima, JP;
Takanori Hara, Hiroshima, JP;
Yuji Tanaka, Hiroshima, JP;
Masatoshi Fujii, Hiroshima, JP;
Nippon Paint Co., Ltd., Osaka, JP;
Mazda Motor Corporation, Aki, JP;
Abstract
In a method of corona discharge processing of resin formings surface, excellent corona discharge processing is possible, even if there is a distance between the resin formings and the discharge electrode, by generating a high voltage pulse having a pulse width of 1 .mu.s or more, an average electric field strength of 4 to 20 kv/cm denoted by applied voltage (wave height) versus interelectrode distance, and a pulse frequency of 10 pps or more. This processing is performed by the apparatus which comprises arranging a transfer conveyor to transfer the resin formings, a counter-electrode placed in a down side of the transfer conveyor, a dielectric to cover a surface of the counter-electrode, and a number of discharge electrodes which are arranged in a definite distance above the resin formings along the transfer route.