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:
Aug. 04, 1998
Filed:
Oct. 19, 1995
Takeaki Iryo, Suwa, JP;
Satoshi Kubota, Suwa, JP;
Kazunori Miyashita, Suwa, JP;
Katsuyoshi Takeshita, Suwa, JP;
Hirokazu Tanaka, Kitakyushu, JP;
Shuitsu Hiraoka, Kitakyushu, JP;
Masafumi Hirai, Kitakyushu, JP;
Tatsuhisa Uchino, Kitakyushu, JP;
Seiko Epson Corporation, Tokyo, JP;
Catalysts & Chemicals Industries Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a film-forming coating solution comprising a matrix and a fine particulate compound oxide composed of oxides of titanium, silicon and zirconium and/or aluminum. This film-forming coating solution can form a colorless and transparent film of high refractive index which is excellent in dyeing property and adhesion to the substrate. Also disclosed is a synthetic resin lens of high refractive index having a film (hard coat film) formed from the film-forming coating solution on the surface. This synthetic resin lens is free from interference fringe and has a reduced thickness.