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. 17, 2005
Filed:
Jul. 12, 2001
Tetsuo Yukimasa, Hirakata, JP;
Hiroaki Oka, Hirakata, JP;
Ryuta Ogawa, Moriguchi, JP;
Hirokazu Sugihara, Katano, JP;
Tetsuo Yukimasa, Hirakata, JP;
Hiroaki Oka, Hirakata, JP;
Ryuta Ogawa, Moriguchi, JP;
Hirokazu Sugihara, Katano, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A multiple electrode for measuring electro-physiological characteristics of a biological specimen includes a plurality of micro-electrode provided on a first region on a substrate, and a reference electrode provided in a second region on the substrate. The reference electrode includes at least one stimulus reference electrode for applying an electrical signal to the plurality of micro-electrodes. Preferably, the reference electrode includes at least one measurement reference electrode for detecting an electrical signal from the plurality of micro-electrodes, and the stimulus reference electrode is electrically insulated from the measurement reference electrode. Preferably, the second region is placed at a distance from an outer edge of the first region, and surrounds the first region.