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:
Dec. 28, 1999
Filed:
Nov. 29, 1996
Applicant:
Inventors:
Isamu Orita, Kokubunji, JP;
Akihiko Kougami, Kokubunji, JP;
Shigeo Mikoshiba, Tokyo, JP;
Takeaki Okabe, Tokyo, JP;
Kouzou Sakamoto, Tokyo, JP;
Masahiro Eto, Fujisawa, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H03K / ;
U.S. Cl.
CPC ...
327515 ; 327313 ; 327314 ; 327321 ;
Abstract
A switching circuit has switching elements for passing-through or cutting-off signals of a positive pulse, which is a rectangular pulse rising from a low level and falling after having kept a high level for a certain time as a high voltage input signal, and a negative pulse, which is a rectangular pulse falling from a high level and rising after having kept a low level for a certain time, the switching circuit being applied to a capacitive load driving device.