IP Library › Granted Patent US 10,900,888
Granted Patent B2
US 10,900,888 · App. 16/342,087 · Granted Jan 26, 2021

Method for evaluating tantalum carbide

Inventors: Shunsuke Noguchi (Hikone, JP); Nobuyuki Oya (Kariya, JP)
Assignees: SHOWA DENKO K.K.; DENSO CORPORATION
G01N21/251C30B23/06C30B29/36G01J3/50G01N21/27G01N21/293G01N2201/062
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Quick Facts
Patent No.
US 10,900,888
App. No.
16/342,087
Granted
Jan 26, 2021
Kind
B2
Abstract

In a method for evaluating tantalum carbide, a carbonization degree of tantalum carbide is evaluated by chromaticity.

Claims (10)

1. A method for evaluating tantalum carbide,

wherein a carbonization degree is evaluated by chromaticity.

2. The method for evaluating tantalum carbide according to claim 1 ,

wherein the chromaticity is measured by a L*a*b* color specification system.

3. The method for evaluating tantalum carbide according to claim 1 ,

wherein the chromaticity is obtained by a spectrophotometer or from an image photographed by a camera.

4. The method for evaluating tantalum carbide according to claim 1 ,

wherein the tantalum carbide is a member selected from a member formed of tantalum carbide and a member having a surface coated with tantalum carbide.

5. The method for evaluating tantalum carbide according to claim 4 ,

wherein the member is a member which is used for an equipment for SiC single crystal growth.

Assignments (3)
CHANGE OF ADDRESS Recorded Feb 14, 2024
From: RESONAC CORPORATION
To: RESONAC CORPORATION
Reel/Frame 066599/0037 →
CHANGE OF NAME Recorded Jun 23, 2023
From: SHOWA DENKO K.K.
To: RESONAC CORPORATION
Reel/Frame 064082/0513 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 15, 2019
From: NOGUCHI, SHUNSUKE; OYA, NOBUYUKI
To: SHOWA DENKO K.K.; DENSO CORPORATION
Reel/Frame 048886/0742 →