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:
Feb. 13, 2007
Filed:
Dec. 17, 2004
Takuo Ito, Miyagi-Ken, JP;
Yasuichi Ono, Miyagi-ken, JP;
Toshiaki Konno, Miyagi-ken, JP;
Yoshio Nuiya, Saitama-ken, JP;
Takuo Ito, Miyagi-Ken, JP;
Yasuichi Ono, Miyagi-ken, JP;
Toshiaki Konno, Miyagi-ken, JP;
Yoshio Nuiya, Saitama-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A hydrogen sensor includes a hydrogen-absorbing material, a thermoelectric element, an electrical circuit for driving the thermoelectric element, a thermometer for the hydrogen-absorbing material, a temperature control circuit for maintaining the hydrogen-absorbing material at a constant temperature using the thermoelectric element, a unit for calculating the exothermic value of the hydrogen-absorbing material based on the electrical current flowing from the drive circuit, and a unit for calculating the hydrogen uptake of the hydrogen-absorbing material based on the exothermic value.