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:
Jul. 19, 1994
Filed:
Jul. 19, 1993
Applicant:
Inventors:
Machio Chihara, Nara, JP;
Jiro Mizuya, Osaka, JP;
Tatsuya Okumura, Osaka, JP;
Takashi Tanaka, Osaka, JP;
Assignee:
Arakawa Chemical Industries, Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23G / ;
U.S. Cl.
CPC ...
134 40 ; 252162 ; 252170 ; 25217421 ;
Abstract
A cleaning method for removing a rosin-base solder flux, the method including bringing a cleaning agent into contact with the flux on a printed wiring board, the cleaning agent including a mixture of