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:
Sep. 09, 1980
Filed:
Aug. 10, 1978
Isamu Ikeda, Tokyo, JP;
Fidelity-Research, Inc., Tokyo, JP;
Abstract
A moving iron type cartridge comprising a mounting base, a pair of permanent magnets for right and left channels secured to said mounting base, yokes for the right channel secured on the pole sides of said permanent magnet for the right channel and partially to the mounting base and having a coil wound thereon, yokes for the left channel secured on the pole sides of said permanent magnet for the left channel and partially to the mounting base and having a coil wound thereon, a damper case positioned at the end portions of said yokes and secured to the mounting base, a damper housed in said damper case, and a cantilever secured to said damper and having a stylus fixed to the tip thereof, whereby the stylus replacing operation can be easily performed and the outputs of a high level can be obtained.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile