Yoshitaka Hayakawa

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Aichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Laser beam cutting machine and laser beam reflector therefor
- Patent number 5,132,509
- Issue date Jul 21, 1992
- Mitsubishi Denki K.K.
- Yoshitaka Hayakawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Automatic welding machine correcting for a varible groove width
- Patent number 4,728,774
- Issue date Mar 1, 1988
- Mitsubishi Denki Kabushiki Kaisha
- Yoshitaka Hayakawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Automatic circumferential welding apparatus
- Patent number 4,645,902
- Issue date Feb 24, 1987
- Mitsubishi Denki Kabushiki Kaisha
- Yoshitaka Hayakawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for performing automatic circumferential welding
- Patent number 4,559,430
- Issue date Dec 17, 1985
- Mitsubishi Denki Kabushiki Kaisha
- Yoshitaka Hayakawa
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR