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:
Feb. 07, 2006
Filed:
May. 30, 2003
Applicant:
Tadao Katsuragawa, Kanagawa-ken, JP;
Inventor:
Tadao Katsuragawa, Kanagawa-ken, JP;
Assignee:
Ricoh Company, LTD, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); E04C 2/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light control window that includes at least a transparent window substrate and an optical element. The optical element includes at least an optical element main body configured to change the light transmittance through the window upon application of a magnetic field. The optical element main body includes at least a micro-magnetic head array configured to apply the magnetic field to the optical element main body.
Katsuragawa, Tadao. (2006). Light control window (U.S. Patent No. 6993872). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6993872
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile