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:
May. 26, 2026

Filed:

Mar. 04, 2021
Applicant:

Tocalo Co., Ltd., Kobe, JP;

Inventors:

Kazuo Hamashima, Kobe, JP;

Masashi Morisasa, Kobe, JP;

Shinsuke Anai, Kobe, JP;

Assignee:

TOCALO CO., LTD., Kobe, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 4/06 (2016.01); C22C 27/04 (2006.01); H01J 37/32 (2006.01); C23C 4/134 (2016.01);
U.S. Cl.
CPC ...
C23C 4/06 (2013.01); C22C 27/04 (2013.01); H01J 37/32495 (2013.01); C23C 4/134 (2016.01); H01J 2237/334 (2013.01);
Abstract

To provide a new tungsten-based thermal spray coating suitable as e.g. a component for plasma etching device using halogen gas, and a material for thermal spraying for obtaining the thermal spray coating. A thermal spray coating characterized by containing tungsten as a matrix phase and oxides containing silicon and boron as a dispersed phase, and a component for plasma etching device having such a thermal spray coating. A material for thermal spraying characterized by containing from 1 to 7 wt % of silicon, from 0.5 to 3 wt % of boron and the reminder being tungsten and unavoidable impurities, and a method for producing a thermal spray coating by thermally spraying the material for thermal spraying.


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