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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.:

US 10138558 B1

PDFFull Text
Date of Patent:
Nov. 27, 2018

Filed:

Jan. 25, 2016

Pretreatment agent for electroless plating, and pretreatment and production of printed wiring board using same

Applicant:

C. Uyemura & Co., Ltd., Osaka, JP;

Inventors:

Yoshikazu Saijo, Osaka, JP;

Hisamitsu Yamamoto, Osaka, JP;

Tetsuji Ishida, Osaka, JP;

Takuya Komeda, Osaka, JP;

Masayuki Utsumi, Osaka, JP;

Assignee:

C. UYEMURA & CO., LTD., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Helene Klemanski

Int. Cl.
CPC ...
C23C 18/20 (2006.01); H05K 3/18 (2006.01); H05K 3/38 (2006.01); C23C 18/22 (2006.01); C23C 18/38 (2006.01);
U.S. Cl.
CPC ...
C23C 18/2066 (2013.01); C23C 18/2086 (2013.01); H05K 3/18 (2013.01); H05K 3/381 (2013.01); C23C 18/22 (2013.01); C23C 18/38 (2013.01); H05K 3/181 (2013.01); H05K 2203/0776 (2013.01); H05K 2203/0793 (2013.01);
Abstract

The ampholytic surfactants show the nature of anionic surfactants in an alkaline region and the nature of cationic surfactants in an acidic region. As described below, the pretreatment solution of the present invention may preferably indicate alkalinity of pH 8.5 or higher, and therefore, it exhibits the nature of cationic surfactants by the use of ampholytic surfactants. As the ampholytic surfactants, those disclosed in JP 2011-228517 A can be used.

Find Patent Forward Citations

Saijo, Yoshikazu. (2018). Pretreatment agent for electroless plating, and pretreatment and production of printed wiring board using same (U.S. Patent No. 10138558). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10138558

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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