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:
Nov. 15, 2011

Filed:

Apr. 19, 2007
Applicants:

Takeshi Takahashi, Osaka, JP;

Terumitsu Takahata, Osaka, JP;

Hidenori Nomura, Osaka, JP;

Gou Asai, Osaka, JP;

Yukihiro Shinohara, Aichi, JP;

Keiji Ooshima, Aichi, JP;

Toshiro Itatsu, Aichi, JP;

Inventors:

Takeshi Takahashi, Osaka, JP;

Terumitsu Takahata, Osaka, JP;

Hidenori Nomura, Osaka, JP;

Gou Asai, Osaka, JP;

Yukihiro Shinohara, Aichi, JP;

Keiji Ooshima, Aichi, JP;

Toshiro Itatsu, Aichi, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 7/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A cetane number detection device in which an angular velocity detection device () for detecting the rotation angular velocity of the crankshaft () of an engine (), and which detects a variation in the value of the amplitude of the angular velocity detected by the angular velocity detection device () as a variation in cetane number.


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