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.

Date of Patent:
Jul. 09, 2013

Filed:

Apr. 10, 2008
Applicants:

Harumichi Tokuyama, Odawara, JP;

Masahiko Mori, Tagata-Gun, JP;

Makoto Takami, Ito, JP;

Haruhiko Kikuchi, Numazu, JP;

Akira Yoshinaga, Numazu, JP;

Noriyuki Sasaki, Numazu, JP;

Shinya Itani, Mishima, JP;

Inventors:

Harumichi Tokuyama, Odawara, JP;

Masahiko Mori, Tagata-Gun, JP;

Makoto Takami, Ito, JP;

Haruhiko Kikuchi, Numazu, JP;

Akira Yoshinaga, Numazu, JP;

Noriyuki Sasaki, Numazu, JP;

Shinya Itani, Mishima, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01M 1/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A lubrication-condition detector detects a lubricant shortage of a target portion that repeats a predetermined operation at a predetermined cycle. The lubrication-condition detector includes: a physical-quantity measuring unit for continuously measuring a physical quantity related to the target portion; and a computer for determining a presence of a lubricant shortage based on the physical quantity. The computer includes: a cycle extractor for extracting a cycle datum per an operational cycle from continuous data including the physical quantity and its measuring time; a representative-value calculator for calculating a representative value for each of plural cycle data; and determining unit for determining a presence of a lubricant shortage based on the plural representative values.


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