Hongjun Tong

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
AC pulse arc welding method
- Patent number 7,235,760
- Issue date Jun 26, 2007
- Diahen Corporation
- Hongjun Tong
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Pulse arc welding output control method and arc length variation pu...
- Patent number 7,145,101
- Issue date Dec 5, 2006
- Daihen Corporation
- Hongjun Tong
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and apparatus for controlling AC pulse arc welding and weldi...
- Patent number 6,600,135
- Issue date Jul 29, 2003
- Daihen Corporation
- Hongjun Tong
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
AC pulse arc welding method
- Publication number 20050284854
- Publication date Dec 29, 2005
- DAIHEN CORPORATION
- Hongjun Tong
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Pulse arc welding output control method and arc length variation pu...
- Publication number 20050056630
- Publication date Mar 17, 2005
- DAIHEN CORPORATION
- Hongjun Tong
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method and apparatus for controlling AC pulse arc welding and weldi...
- Publication number 20020030043
- Publication date Mar 14, 2002
- DAIHEN Corporation
- Hongjun Tong
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR