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:
Dec. 01, 1992
Filed:
Apr. 22, 1991
Applicant:
Inventors:
Assignee:
Matsushita Electrical Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257 64 ; 62-32 ; 62-36 ; 62-33 ; 252 70 ; 136203 ; 136205 ; 257467 ; 257468 ;
Abstract
A thermoelectric semiconductor device having a porous structure and an air-tight sealing structure maintaining it in a deaerated state is disclosed. A refrigeration panel comprising a plurality of p-type and n-type semiconductor elements each having a structure mentioned above, in which the elements are arranged alternatively and electrically connected in series is also disclosed.