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. 07, 2002
Filed:
Aug. 26, 1999
Tomoaki Ito, Tokyo, JP;
Masami Tanaka, Tokyo, JP;
Tadashi Kubota, Tokyo, JP;
Yasuhiro Masuzaki, Tokyo, JP;
Osamu Uchiyama, Tokyo, JP;
Hirose Electric Co., Ltd., Tokyo, JP;
Abstract
A pulse signal generator comprising a magnetic element ( ) able to cause a large Barkhausen jump; a detection member ( ) for detecting a magnetic change in the magnetic element ( ) to generate a pulse signal; and a pair of magnets ( ) provided on both sides of the magnetic element ( ) such that their poles are opposed to each other; a magnetic circuit formation adjusting member ( ) attached to at least one of the magnets ( ) so that when an object ( A) passes a pair of poles ( A, A) on one end of the magnets ( ), a magnetic field applied to the magnetic element changes to cause a large Barkhausen jump in the magnetic element ( ), thus causing the detection member ( ) to generate a pulse signal.