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:
Jul. 13, 1993
Filed:
Mar. 07, 1991
Applicant:
Inventors:
Masahiro Watanabe, Yokohama, JP;
Mitsuyoshi Otake, Yokohama, JP;
Megumi Hamano, Yokohama, JP;
Yoshiharu Takizawa, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ; B08B / ;
U.S. Cl.
CPC ...
134-7 ; 134 19 ; 134 35 ; 134105 ; 134184 ; 134187 ; 134193 ; 51317 ;
Abstract
A method for cleaning a solid surface which is effective for a substance to be cleaned having a complicated structure and which uses no solvent such as CFC or the like which is harmful to the environment of the earth. A cleaning liquid is obtained by mixing insoluble particles in a liquid and brought into an eddy-flow state so that a surface to be cleaned can be uniformly cleaned.