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:
Sep. 19, 2000
Filed:
Jun. 28, 1999
Hiromitsu Takeda, Tokyo, JP;
Atsushi Kamata, Kanagawa-ken, JP;
Hiroki Inagaki, Kanagawa-ken, JP;
Seiichi Suenaga, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A composite material substrate comprises a matrix material and a skeleton structure of a fibrous material. The matrix material exclusively participates in the thermal expansion of the substrate and the fibrous material in the mechanical strength thereof. The fibrous material constituting the skeleton structure has no influence on the thermal expansion profile of the matrix material, and the skeleton structure is loosely bonded to the matrix material at their interface. The substrate is used for solar cells. Photoelectric transfer layers of semiconductors are formed on the substrate to fabricate large-sized solar cells.