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:
Feb. 16, 1988
Filed:
Feb. 19, 1986
Applicant:
Inventors:
Shiro Minayoshi, Akashi, JP;
Naofumi Saitoh, Akashi, JP;
Minoru Hanazaki, Kobe, JP;
Hiroyuki Hisakuni, Kobe, JP;
Noritsugu Ebisuya, Akashi, JP;
Assignee:
Maruo Calcium Company, Limited, Hyogo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106306 ; 1621811 ; 1621812 ;
Abstract
The present invention provides a filler for paper-making containing 0.1 weight part or more of a particle composition meeting the requirements (A), (B) and (C) below per 100 weight parts of heavy calcium carbonate and a neutral paper-making process by the use thereof: