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:
Jan. 11, 2005
Filed:
Sep. 13, 2001
Jun Takamura, Mishima, JP;
Noboru Nitta, Shizuoka-ken, JP;
Shunichi Ono, Shizuoka-ken, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
A method and apparatus for driving a capacitive element are provided wherein: (i) when charging the capacitive element by driving and controlling both electrodes of the capacitive element, the capacitive element is charged by setting one of the driving circuits for varying one of the electrode potentials first at a high impedance and then at a low impedance; and (ii) when discharging the capacitive element by driving and controlling both electrodes of the capacitive element, the capacitive element is discharged by setting one of the driving circuits for varying one of the electrode potentials first at a high impedance and then at a low impedance.