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. 10, 2009
Filed:
Feb. 24, 2006
Hiroyuki Kotani, Osaka, JP;
Hirotaka Takei, Osaka, JP;
Ryohei Tanaka, Osaka, JP;
Hiroshi Matoba, Osaka, JP;
Hiroyuki Kotani, Osaka, JP;
Hirotaka Takei, Osaka, JP;
Ryohei Tanaka, Osaka, JP;
Hiroshi Matoba, Osaka, JP;
Daihen Corporation, Osaka, JP;
Abstract
A high-frequency power device including: an oscillator; a high-frequency power supplier; a reflection coefficient calculator; a discharge signal output unit; and a frequency controller, wherein the frequency controller: instructs the oscillator to oscillate the oscillation signal at a first oscillation frequency for the period of time while a discharge signal is not in a state showing that the discharge has been commenced or in a state where the discharge is regarded as having been commenced; then instructs the oscillator to change the first oscillation frequency to a second oscillation frequency immediately after the discharge signal changes into the states; and then controls the oscillation frequency so that the absolute value is made small.