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:
Oct. 23, 2007
Filed:
Sep. 22, 2005
Hirokazu Makihara, Takatsuki, JP;
Kazuki Tateoka, Takatsuki, JP;
Katsuhiko Kawashima, Nishinomiya, JP;
Shingo Matsuda, Nagaokakyo, JP;
Hirokazu Makihara, Takatsuki, JP;
Kazuki Tateoka, Takatsuki, JP;
Katsuhiko Kawashima, Nishinomiya, JP;
Shingo Matsuda, Nagaokakyo, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The transistor circuitincludes a plurality of transistor cellseach having a transistor, a base ballast resistor, a capacitor, and an inductor. The transistorshave the respective collectors commonly connected to a collector terminalof the transistor circuitand the respective emitters commonly connected to an emitter terminalthereof. Each base ballast resistoris connected to bases of the transistorat one end and to a base terminalof the transistor circuitat the other end. The capacitoris serially connected to the inductor, thus to form a serial resonant circuit, which is connected in parallel with the base ballast resistorand provided between the bases of the transistorand the base terminalof the transistor circuitand connected thereto.