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:
Apr. 13, 2010
Filed:
Apr. 24, 2007
Norikazu Nakamura, Nagano, JP;
Masao Nakazawa, Nagano, JP;
Hidekazu Miyamoto, Nagano, JP;
Kenji Miyazawa, Nagano, JP;
Manabu Saito, Nagano, JP;
Norikazu Nakamura, Nagano, JP;
Masao Nakazawa, Nagano, JP;
Hidekazu Miyamoto, Nagano, JP;
Kenji Miyazawa, Nagano, JP;
Manabu Saito, Nagano, JP;
Shinko Electric Industries Co., Ltd., Nagano-shi, JP;
Abstract
In a reaction chamber (), a used alkaline permanganate etching solution () is accommodated and an alkaline earth hydroxide () such as calcium hydroxide is added in the reaction chamber, a liquid inside of the reaction chamber is agitated, the liquid is exhausted from a side portion or a top portion of the reaction chamber through a filter (), a precipitate () adhered to the filter is scraped off, and a precipitate containing a hardly soluble or insoluble matter incapable of passing through the filter and accumulated on a bottom portion of the reaction chamber is exhausted from the reaction chamber.