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. 02, 1997
Filed:
Apr. 01, 1996
Tetsuo Aoyama, Niigata, JP;
Toshio Kondoh, Niigata, JP;
Toshihiko Kobayashi, Tokorozawa, JP;
Kaoru Tsuyuki, Tokorozawa, JP;
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Abstract
A flux washing agent which comprises an aqueous solution containing a quaternary ammonium salt and hydrazine is disclosed. The flux washing agent is used in the production of printed circuit boards and the like. The flux washing agent has a washing ability, and a property to suppress etching of solder which are comparable with those of Flon 113 and trichloroethylene heretofore used as flux washing agents. Furthermore, the flux washing agent is safe, does not cause environmental pollution and has an excellent rinsing property.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile