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:
Jun. 16, 1992
Filed:
Mar. 22, 1991
Applicant:
Inventors:
Teruo Watanabe, Aichi, JP;
Yasuaki Kasai, Nagoya, JP;
Hiyoshi Yamada, Iwakura, JP;
Norio Yoshikawa, Nagoya, JP;
Yutaka Yoshida, Tokai, JP;
Assignee:
Daido Tokushuko K.K., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264109 ; 148105 ; 264D / ; 419 66 ;
Abstract
A method of forming a cylindrical compact for a cylindrical magnet is improved by moving a core pin and a die of a mold at the same time of pressing magnet materials with a pressing punch in the same direction as that of the pressing punch at travelling speed Vc and Vd indicated by following equation: