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:
May. 23, 2017
Filed:
Aug. 01, 2016
Seiko Epson Corporation, Tokyo, JP;
Akira Abe, Matsumoto, JP;
Hiroshi Sugita, Shiojiri, JP;
Seiko Epson Corporation, , JP;
Abstract
A liquid ejecting apparatus includes: a modulation circuit that generates a modulated signal obtained by performing pulse modulation on a source signal; a transistor that amplifies the modulated signal to generate an amplified modulated signal; a lowpass filer that smoothes the amplified modulated signal to generate a driving signal; a piezoelectric element that is displaced when the driving signal is applied; and a circuit substrate on which the modulation circuit, the transistor, and the lowpass filter are mounted. The transistor includes a die, a first electrode, a second electrode, a third electrode, a conductive die pad, a first lead which is electrically connected to the second electrode by a bonding wire, and a second lead which is electrically connected to the third electrode by a bonding wire. The die pad, the first lead, and the second lead are electrically connected to different wiring patterns of the circuit substrate.