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Naito; Kiwamu
Chita-gun, JP
No. of patents:

Patent Number Title Of Patent Date Issued
6859039 Device and method for detecting oil deterioration February 22, 2005
A method and a device for detecting a deterioration of vehicle oil are disclosed in which the end point of the oil service life can be detected with higher accuracy, while at the same time detecting the progress of the oil condition in the vicinity of the end point of the oil service lif
6791334 Oil condition sensor and method for making the same September 14, 2004
An oil condition sensor detects a condition of oil in response to the potential difference between electrodes. The electrodes include at least a first and second electrodes coaxially arranged. The electrodes have projections being arranged to face each other in an opposed manner. The
6549015 Pair of electrodes for detecting acidity or basicity of oil April 15, 2003
In a pair of electrodes where a potential difference is changed in accordance with acidity or basicity of oil, a reference electrode is made of cobalt or a cobalt alloy, and a sensitive electrode is made of tungsten or a tungsten alloy. The sensitive electrode is used in combination with

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