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:
Mar. 26, 2013
Filed:
Jan. 25, 2011
Naoki Takahashi, Miyagi, JP;
Tomoki Nobuta, Miyagi, JP;
Yasuhisa Sugawara, Miyagi, JP;
Yuji Yoshida, Miyagi, JP;
Satoshi Suzuki, Miyagi, JP;
Yasuhiro Tomioka, Miyagi, JP;
Naoki Takahashi, Miyagi, JP;
Tomoki Nobuta, Miyagi, JP;
Yasuhisa Sugawara, Miyagi, JP;
Yuji Yoshida, Miyagi, JP;
Satoshi Suzuki, Miyagi, JP;
Yasuhiro Tomioka, Miyagi, JP;
NEC Tokin Corporation, Miyagi, JP;
Abstract
The present invention provides a conductive polymer suspension for providing a conductive polymer material having high conductivity and a method for producing the same, and particularly provides a solid electrolytic capacitor having low ESR and a method for producing the same. In an emulsion comprising a dopant of a low molecular organic acid or a salt thereof, obtained by emulsifying a monomer providing a conductive polymer, using a nonionic surfactant, in a water, the monomer is subjected to chemical oxidative polymerization, using an oxidant, to synthesize a conductive polymer. The obtained conductive polymer is purified, and then, the purified conductive polymer and an oxidant are mixed in an aqueous solvent containing a polyacid component to produce a conductive polymer suspension.