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. 14, 2008
Filed:
Dec. 12, 2003
Tamiji Nagai, Kanagawa, JP;
Kazuo Yamazaki, Kanagawa, JP;
Hitoshi Akiho, Miyagi, JP;
Takayuki Aita, Fukushima, JP;
Kenji Enomoto, Saitama, JP;
Tamiji Nagai, Kanagawa, JP;
Kazuo Yamazaki, Kanagawa, JP;
Hitoshi Akiho, Miyagi, JP;
Takayuki Aita, Fukushima, JP;
Kenji Enomoto, Saitama, JP;
Sony Corporation, , JP;
Abstract
A solenoid type switch has at least two driving coils. The driving coils turn off a switch with a current for example an overcurrent that flows in the switch. The driving coils are magnetized or demagnetized by a driving circuit so as to turn on or off the switch. The driving circuit magnetizes or demagnetizes the driving coils in accordance with a control signal supplied from a controlling circuit. Thus, the switch can be turned off with the current that flows in the driving coils.