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. 10, 2007
Filed:
Jun. 24, 2004
Tamiji Nagai, Kanagawa, JP;
Kazuo Yamazaki, Kanagawa, JP;
Kenji Enomoto, Saitama, JP;
Takayuki Aita, Fukushima, JP;
Tamiji Nagai, Kanagawa, JP;
Kazuo Yamazaki, Kanagawa, JP;
Kenji Enomoto, Saitama, JP;
Takayuki Aita, Fukushima, JP;
Sony Corporation, , JP;
Abstract
A driving circuit is disclosed. The driving circuit comprises a secondary battery cell having a positive electrode and a negative electrode, first and second N-type field effect transistors each having a gate, a drain, and a source, first and second switching devices, connected between the gates of the first and second N-type field effect transistors and the negative electrode side of the secondary battery cell, for turning on and off the first and second N-type field effect transistors, driving means for controlling the first and second switching devices, first and second output terminals, and a diode having an anode and a cathode.