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:
May. 14, 1991
Filed:
Jan. 25, 1989
Applicant:
Inventors:
Shoichi Iwaya, Yuri, JP;
Hitoshi Masumura, Yuri, JP;
Hiroki Takahashi, Honjou, JP;
Masaaki Ohkawara, Yokohama, JP;
Katsumi Kobayashi, Yokohama, JP;
Takashi Ito, Machida, JP;
Assignees:
TDK Corporation, Tokyo, JP;
Ohkawara Kakohki Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; F26B / ;
U.S. Cl.
CPC ...
159-42 ; 34 10 ; 34 5 / ; 159 481 ; 159D / ; 159D / ; 202236 ; 203 90 ;