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. 08, 1977
Filed:
Jan. 03, 1975
Munetaka Tamaru, Tokyo, JA;
Kazunari Kume, Tokorozawa, JA;
Minoru Watanabe, Tokorozawa, JA;
Hideshi Ohno, Sayama, JA;
Citizen Watch Co., Ltd., Tokyo, JA;
Abstract
An electronic timepiece with a digital display device employing electrochromic materials, such as titanate and niobate, as an electro-optical element. An electrochromic material produces different states of coloration depending upon the polarity of voltage applied thereto for a remarkably long period, and with a minimum of power consumption, whereby the timepiece enjoys a minimization in its size, a long life for its battery, and a variable design in the display.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile