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:
Jun. 16, 2015
Filed:
Dec. 18, 2009
Tamayo Ohata, Tokyo, JP;
Tatsushi Sato, Tokyo, JP;
Hironori Kuriki, Tokyo, JP;
Hisakatsu Kawarai, Tokyo, JP;
Jyunji Tanimura, Tokyo, JP;
Takashi Yuzawa, Tokyo, JP;
Tamayo Ohata, Tokyo, JP;
Tatsushi Sato, Tokyo, JP;
Hironori Kuriki, Tokyo, JP;
Hisakatsu Kawarai, Tokyo, JP;
Jyunji Tanimura, Tokyo, JP;
Takashi Yuzawa, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
RYODEN KOKI ENGINEERING CO., LTD., Aichi, JP;
Abstract
The liquid-quality adjusting apparatus of the present invention includes: a water purifying part that deionizes a machining liquid; an anticorrosive part that exchanges ions in the machining liquid with anticorrosive ions; a conductivity measuring part that measures a measured value of conductivity of the machining liquid; a storage part that stores in advance a first reference value and a second reference value which are an upper limit value and a lower limit value of conductivity applicable to machining, respectively, and a third reference value which is between the first reference value and the second reference value; and a control part that performs control on the basis of the reference values stored in the storage part and the measured value of the conductivity of the machining liquid measured by the conductivity measuring part.