Hiroki YAMAMOTO

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Iwakura-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Laser welding method, method for manufacturing welded body, method...
- Patent number 10,201,876
- Issue date Feb 12, 2019
- NGK Spark Plug Co., Ltd.
- Hiroki Yamamoto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for manufacturing spark plug using a jig having a varied sha...
- Patent number 10,122,154
- Issue date Nov 6, 2018
- NGK Spark Plug Co. Ltd.
- Hiroki Yamamoto
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MANUFACTURING SPARK PLUG
- Publication number 20180323585
- Publication date Nov 8, 2018
- NGK Spark Plug Co., Ltd.
- Hiroki YAMAMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LASER WELDING METHOD, METHOD FOR MANUFACTURING WELDED BODY, METHOD...
- Publication number 20170259380
- Publication date Sep 14, 2017
- NGK SPARK PLUG CO., LTD.
- Hiroki YAMAMOTO
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR