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:
Oct. 20, 2026
Filed:
Sep. 26, 2023
Tokai Optical Co. Ltd., Okazaki, JP;
Ryosuke Suzuki, Okazaki, JP;
Hirotoshi Takahashi, Okazaki, JP;
TOKAI OPTICAL CO. LTD., Okazaki, JP;
Abstract
Provided is a plastic lens, for spectacles, which inhibits occurrence of abnormal outer appearance and has antibacterial property. A plastic lensfor spectacles includes: a plastic base; and a dielectric multilayer filmformed on a film formation surface M of the base. The dielectric multilayer filmincludes one or more low refractive index dielectric layers, one or more high refractive index dielectric layers, and an antibacterial layer. The antibacterial layeris a dielectric layer containing metal ion-carrying zeolite, and is disposed closer to an air side than all of the low refractive index dielectric layersand all of the high refractive index dielectric layersare. A physical film thickness of the antibacterial layeris less than 50 nm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile