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. 13, 1986
Filed:
Jun. 06, 1984
Applicant:
Inventors:
Osao Sumita, Hitachi, JP;
Masayuki Saito, Mito, JP;
Hisao Itou, Hitachi, JP;
Masahito Kobayashi, Hitachi, JP;
Yasumasa Furutani, Katsuta, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Engineering Co., Ltd., Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25F / ;
U.S. Cl.
CPC ...
2041 / ;
Abstract
An object to-be-washed bearing an oxide on the surface of a parent material metal is immersed in a liquid containing a complexing agent, electrons having energy levels on the base side with respect to the Fermi level of the oxide are generated outside the parent material metal by supplying external energy, and the electrons are injected into the oxide of the object to-be-washed immersed in the liquid.