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.

Date of Patent:
Mar. 13, 1984

Filed:

Jun. 04, 1981
Applicant:
Inventors:

Kazuo Nishikawa, Saitama, JP;

Kiyoshi Sato, Saitama, JP;

Hiroyuki Ichino, Saitama, JP;

Keniti Okura, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
369172 ; 369135 ;
Abstract

A moving coil type phono pickup cartridge in which a stylus unit is very accurately positioned in three dimensions with respect to a cartridge body to thereby closely align a moving coil unit in the stylus unit with a corresponding magnetic unit in the cartridge body. The stylus unit is formed with first through third resilient plates which project from a side of the stylus unit. The cartridge body is formed with corresponding first through third polished positioning surfaces having engagement recesses at the base portions thereof in which are engaged engagement projections formed at ends of the resilient plates. A tab formed on the stylus unit abuts an upper polished surface of the cartridge body.


Find Patent Forward Citations

Nishikawa, Kazuo. (1984). Phono pickup cartridge (U.S. Patent No. 4437179). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4437179

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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