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. 14, 2006
Filed:
Mar. 03, 2003
Kohei Ito, Izumi, JP;
Koji Ueda, Minoo, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In a high frequency heating apparatus, a microcomputer inputs the phase signal of a commercial AC power supply and determines whether a timer switch in a mechanical timer apparatus is in ON-state to determine whether the high frequency heating apparatus is in a heating-time set state. If so, the microcomputer turns on a switch that controls the conduction between the commercial AC power supply and a high voltage transformer at such a timing that minimizes the rush current in accordance with the phase of the commercial AC power supply, thereby suppressing the rush current, allowing the user to visually confirm the remaining heating time, and realizing a cost reduction.