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:
Nov. 16, 1982

Filed:

Oct. 21, 1980
Applicant:
Inventors:

Masami Nakagawa, Kadoma, JP;

Wataru Shimotsuma, Ibaraki, JP;

Yoshio Kishimoto, Hirakata, JP;

Yoichi Sekine, Hirakata, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
3461 / ; 346 742 ;
Abstract

A recording apparatus which uses magneto-fluidic material comprising a magnetic multi-stylus head arranged in parallel to oppose a recording plane, a magnet fixed to the multi-stylus head near a tip end thereof, apparatus for supplying magneto-fluidic material to at least one point of the magnet and apparatus for causing the magneto-fluidic material on the multi-stylus to selectively be flung, wherein a plurality of areas of concentration of lines of magnetic force are formed on at least one of outer surfaces of the magnet in order to stabilize the supply of the magneto-fluidic material for the comsumption of the magneto-fluidic material on the multi-stylus head due to the flying of the magneto-fluidic material.


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