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:
Aug. 21, 2018
Filed:
Jun. 24, 2015
Shinichirou Muto, Kanuma, JP;
Masaru Ishijima, Kanuma, JP;
Keita Yokochi, Kanuma, JP;
Hayato Matsushita, Kanuma, JP;
Yukihiro Ueki, Kanuma, JP;
Shinichirou Muto, Kanuma, JP;
Masaru Ishijima, Kanuma, JP;
Keita Yokochi, Kanuma, JP;
Hayato Matsushita, Kanuma, JP;
Yukihiro Ueki, Kanuma, JP;
Nakanishi Inc., Kanuma-shi, JP;
Abstract
A method for maintenance checking of a dental handpiece is disclosed. The method comprises measuring in advance no-load current values of a drive motor, with a handpiece known as being in usable condition and a handpiece known as insufficiently maintained respectively connected thereto and operated in no-load condition, storing as reference data the no-load current values of the drive motor together with associated data relating to degree of maintenance, measuring a no-load current value of the drive motor with a dental handpiece to be checked connected thereto and operated in no-load condition, and determining whether the handpiece checked is usable, requires maintenance, or is unusable, by comparing the measured no-load current value with the reference data.