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:
Jul. 30, 1991
Filed:
Aug. 14, 1990
Akira Ishikawa, Kokubunji, JP;
Yukio Ito, Sayama, JP;
Hiroshi Okamoto, Oume, JP;
Tetsuichi Kudo, Tokyo, JP;
Katsuki Miyauchi, Hino, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A material for an optical component comprising polytungstic acid having peroxo groups, and an optical component, at least part of which is constituted of a thin film of the above-mentioned material. By using this material, a thin film of an inorganic material having an excellent stability is formed by the inexpensive wet painting method. An optical component using the above-mentioned thin film can be formed on an arbitrary substrate with high accuracy at a low temperature of about 100.degree. C. or below. The polytungstic acid may contain carbon as a heteroatom and/or may have Nb, Ti, V, Ta and/or Mo substituted for part of W.