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:
May. 09, 2006
Filed:
Jun. 20, 2001
Hiroaki Oka, Hirakata, JP;
Tetsuo Yukimasa, Hirakata, JP;
Ryuta Ogawa, Moriguchi, JP;
Hirokazu Sugihara, Katano, JP;
Katsuyuki Tsuji, Hirakata, JP;
Yukifumi Yoshimoto, Amagasaki, JP;
Hiroaki Oka, Hirakata, JP;
Tetsuo Yukimasa, Hirakata, JP;
Ryuta Ogawa, Moriguchi, JP;
Hirokazu Sugihara, Katano, JP;
Katsuyuki Tsuji, Hirakata, JP;
Yukifumi Yoshimoto, Amagasaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A multiple electrode includes a plurality of micro-electrodes provided on a substrate, and a wiring portion for providing an electrical signal to the micro-electrodes or extracting an electrical signal from the micro-electrodes. Each micro-electrode has porous conductive material on its surface, and the impedance of the micro-electrode is 50 kΩ or less. Preferably, the porous conductive material is gold, and formed by the passage of current at a current density of 1.0 to 5.0 A/dmfor 10 to 360 sec. The multiple electrode may include micro-electrodes provided on a substrate in the form of a matrix, a lead line connected to the micro-electrodes, and an electrical junction connected to an end of the lead line.