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:
Nov. 24, 2020
Filed:
Feb. 08, 2018
National University Corporation Toyohashi University of Technology, Toyohashi, JP;
Hamamatsu Photonics K.k., Hamamatsu, JP;
Kazuaki Sawada, Toyohashi, JP;
Hiroo Yamamoto, Hamamatsu, JP;
Seiichiro Mizuno, Hamamatsu, JP;
Toshiki Wakamori, Hamamatsu, JP;
NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY, Toyohashi, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
An ion concentration distribution measurement device includes a unit detection element for outputting charges of an amount according to an ion concentration, and an integration circuit for outputting a signal value according to the amount of charges which are output from the unit detection element. The unit detection element includes a MOS transistor, an ion sensitive portion, a first capacitive portion, and a transfer switch. The integration circuit includes an amplifier, a second capacitive portion, and a reset switch.