Chih-Yeh CHAO

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Nei-Pu Industrial Zone Ping-Tung Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Golf club head and low density alloy thereof
- Patent number 9,750,990
- Issue date Sep 5, 2017
- O-Ta Precision Industry Co., Ltd.
- Chuan-Hsien Chang
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Iron-based alloy for a golf club head
- Patent number 8,287,403
- Issue date Oct 16, 2012
- O-Ta Precision Industry Co., Ltd.
- Chih-Yeh Chao
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
GOLF CLUB HEAD AND LOW DENSITY ALLOY THEREOF
- Publication number 20150080150
- Publication date Mar 19, 2015
- O-Ta Precision Industry Co., Ltd.
- Chuan-Hsien CHANG
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Application
Iron-based alloy for a golf club head
- Publication number 20110086726
- Publication date Apr 14, 2011
- O-TA Precision Industry Co., Ltd.
- Chih-Yeh Chao
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...