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. 28, 2021
Filed:
Dec. 02, 2016
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Mika Okada, Isa, JP;
Kenji Adachi, Ichikawa, JP;
SUMITOMO METAL MINING CO., LTD., Tokyo, JP;
Abstract
Heat ray shielding fine particles, heat ray shielding fine particle dispersion liquid, heat ray shielding film, heat ray shielding glass, heat ray shielding dispersion body, and heat ray shielding laminated transparent substrate that exhibit heat ray shielding properties and suppress scorching sensation on skin when employed in window materials and the like, also enable usage of communication devices, imaging devices, sensors, etc. that employ near-infrared light across these structures. The particles are composite tungsten oxide fine particles having a heat ray shielding function; and when a visible light transmittance is 85% when computed for light absorption by the particles alone, the average value of transmittance in the wavelength region from 800 nm to 900 nm is 30%-60%, and the average value of transmittance in the wavelength region from 1200 nm to 1500 nm is 20% or lower, and the transmittance at a wavelength of 2100 nm is 22% or lower.