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:
Jan. 18, 1977
Filed:
Jun. 11, 1975
Junichi Kurata, Tokorozawa, JA;
Pioneer Electronic Corporation, Tokyo, JA;
Abstract
A pick-up cartridge includes an armature being attached with a cantilever having a sound needle at an end composed of two pieces of high magnetic permeable material, each constituting a separate magnetic path, and a piece of magnetically high resistance material interposed between the two pieces of high magnetic material, a magnet provided in a relation opposing to an end of the armature, and an E-shaped yoke provided in opposition to another end of the armature with a detecting coil wound thereon, so that magnetic fluxes created by the magnet are firstly passed through one of the two pieces of the high magnetic permeable material, and on their return, passed through the other piece of the material.