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:
Jan. 07, 1992
Filed:
Oct. 13, 1988
Akihiko Mochizuki, Tokyo, JP;
Hideyo Iida, Tokyo, JP;
Taiyo Yuden Co., Ltd., , JP;
Abstract
A chemical sensor includes a field effect-type transistor. An extended gate electrode is connected to a gate electrode of the transistor. A sensitive membrane is provided on at least a part of the extended gate electrode. The sensor also includes a reference electrode. Both the extended gate and reference electrodes are formed on a substrate different from the substrate on which the transistor is formed. Divided parts for the chemical sensor wherein the parts of the sensor except for the reference electrode are made independent are also disclosed and claimed. Sensors for simultaneously sensing a number of different chemical substances in a single sample are also disclosed and claimed.