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:
Apr. 05, 2005
Filed:
Feb. 19, 2003
Masakazu Ichikawa, Souka, JP;
Isao Kitazawa, Tokyo, JP;
Masao Sakuyama, Tokorozawa, JP;
Tomio Okigami, Higashimurayama, JP;
Masakazu Ichikawa, Souka, JP;
Isao Kitazawa, Tokyo, JP;
Masao Sakuyama, Tokorozawa, JP;
Tomio Okigami, Higashimurayama, JP;
Citizen Watch Co., Ltd., Tokyo, JP;
Abstract
A first voltage detector detects whether the voltage of a secondary cell has reached to 1.2V and a first timer counts a time duration for which the voltage is equal to or above 1.2V. If the time counted by the first timer reaches one hour, a second timer starts counting time for one hour. An amount of charge accumulated in the secondary cell is displays after counting of the one hour by the second timer is over. As a result, an accurate display of the amount of charge accumulated in the secondary cell can be achieved.