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.

Date of Patent:
Jun. 30, 2009

Filed:

Jul. 21, 2005
Applicants:

Masahiro Komachiya, Hitachinaka, JP;

Hiroshi Yamauchi, Hitachi, JP;

Inventors:

Masahiro Komachiya, Hitachinaka, JP;

Hiroshi Yamauchi, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01); H01M 8/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fuel cell device including a fuel cell stack unit, a fuel reform unit, a material feed unit, a cooling water supply unit, and a control unit further includes a memory section, constructed of a rewritable memory, for storing information necessary for maintenance or inspection of the fuel cell device. The memory section is partitioned into a use environment information memory area for storing use environment conditions, a material feed information memory area for storing attribute information of the material feed unit, a fuel reform information memory area for storing attribute information of the fuel reform unit, a cell stack information memory area for storing attribute information of the fuel cell stack unit and a cooling water supply information memory area for storing attribute information of the cooling water supply unit.


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