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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.:

US 9637804 B1

PDFFull Text
Date of Patent:
May. 02, 2017

Filed:

Mar. 14, 2013

Heat treating oil composition

Applicant:

Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;

Inventors:

Kenro Noguchi, Ichihara, JP;

Masayuki Kato, Ichihara, JP;

Katsumi Ichitani, Ichihara, JP;

Masahiro Kobessho, Chiyoda-ku, JP;

Masahiro Yamada, Toyota, JP;

Norihiro Takasaki, Toyota, JP;

Assignee:

IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Weiping Zhu

Int. Cl.
CPC ...
C21D 1/58 (2006.01); C10M 169/04 (2006.01); C10M 111/02 (2006.01); C10M 107/04 (2006.01); C21D 9/32 (2006.01);
U.S. Cl.
CPC ...
C21D 1/58 (2013.01); C10M 107/04 (2013.01); C10M 111/02 (2013.01); C10M 169/041 (2013.01); C10M 2203/1025 (2013.01); C10M 2205/022 (2013.01); C10M 2205/028 (2013.01); C10M 2205/0225 (2013.01); C10M 2205/0285 (2013.01); C10N 2220/022 (2013.01); C10N 2240/40 (2013.01); C21D 9/32 (2013.01);
Abstract

A heat-treatment oil composition contains (A) a first base oil with a kinematic viscosity at 40 degrees C. in a range of 5 mm/s to 60 mm/s in an amount of 50 mass % to 95 mass % of a total amount of the composition, (B) a second base oil with a kinematic viscosity at 40 degrees C. of 300 mm/s or more in an amount of 5 mass % to 50 mass %, and (C) an alpha-olefin copolymer. The heat-treatment oil composition according to the invention can reduce distortion unevenness and hardness unevenness accompanying mass-quenching.

Find Patent Forward Citations

Noguchi, Kenro. (2017). Heat treating oil composition (U.S. Patent No. 9637804). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9637804

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