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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 11220985 B1

PDFFull Text
Date of Patent:
Jan. 11, 2022

Filed:

Jun. 09, 2016

Hollow composite magnetic member, process for producing same, and fuel ejection valve

Applicant:

Hitachi Automotive Systems, Ltd., Hitachinaka, JP;

Inventors:

Shinya Okamoto, Tokyo, JP;

Xudong Zhang, Tokyo, JP;

Nobuaki Kobayashi, Hitachinaka, JP;

Takahiro Saito, Hitachinaka, JP;

Akihiro Yamazaki, Hitachinaka, JP;

Assignee:

Hitachi Astemo, Ltd., Hitachinaka, JP;

Attorney:

Crowell & Moring LLP

Primary Examiner:

Xiaowei Su

Int. Cl.
CPC ...
H01F 1/147 (2006.01); F02M 51/06 (2006.01); B23K 26/12 (2014.01); B23K 26/34 (2014.01); B23K 26/00 (2014.01); B23K 26/211 (2014.01); B23K 26/08 (2014.01); B23K 26/342 (2014.01); B23K 15/00 (2006.01); B23K 101/00 (2006.01); B23K 103/04 (2006.01); B23K 101/06 (2006.01);
U.S. Cl.
CPC ...
F02M 51/0625 (2013.01); B23K 15/0086 (2013.01); B23K 26/0006 (2013.01); B23K 26/0823 (2013.01); B23K 26/123 (2013.01); B23K 26/127 (2013.01); B23K 26/211 (2015.10); B23K 26/34 (2013.01); B23K 26/342 (2015.10); F02M 51/06 (2013.01); H01F 1/14708 (2013.01); B23K 2101/006 (2018.08); B23K 2101/06 (2018.08); B23K 2103/05 (2018.08); F02M 2200/08 (2013.01); F02M 2200/8084 (2013.01); F02M 2200/9061 (2013.01); F02M 2200/9069 (2013.01);
Abstract

There is provided a hollow composite magnetic member obtained by partially reforming a hollow member which is formed of a ferromagnetic material containing Cr of 15 mass % or more and 18 mass % or less, in which the reformed portion includes an alloy containing Cr of 8 mass % or more and 18 mass % and Ni of 6.5 mass % or more and 50 mass % or less. Accordingly, a hollow composite magnetic member having a small width of the nonmagnetic portion and a fuel injection valve having the same can be provided.

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