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. 31, 2021
Filed:
Mar. 17, 2019
Noboru Sasa, Kanagawa, JP;
Keiichiroh Yutani, Kanagawa, JP;
Tohru Yashiro, Kanagawa, JP;
Tomoo Fukuda, Tokyo, JP;
Masato Shinoda, Kanagawa, JP;
Fuminari Kaneko, Kanagawa, JP;
Noboru Sasa, Kanagawa, JP;
Keiichiroh Yutani, Kanagawa, JP;
Tohru Yashiro, Kanagawa, JP;
Tomoo Fukuda, Tokyo, JP;
Masato Shinoda, Kanagawa, JP;
Fuminari Kaneko, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An electrochromic device reversibly and controllably colored and decolored by electricity is provided. The electrochromic device is configured to control at least one of the following functions f1 and f2 based on at least one of an operating environment temperature of the electrochromic device, a continuous elapsed time of a colored state or a decolored state, and an illuminance around the electrochromic device: