Tadashi Sofue

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Kariya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Automatic assembling system of galvanized steel sheet by spot welding
- Patent number RE37799
- Issue date Jul 23, 2002
- Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
- Toichi Watanabe
- 219 - Electric heating
Information Patent Grant
Automatic assembling system of galvanized steel sheet by spot welding
- Patent number 5,793,011
- Issue date Aug 11, 1998
- Watanabe; Toichi
- Toichi Watanabe
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric resistant welding for zinc plated steel plate
- Patent number 5,075,531
- Issue date Dec 24, 1991
- Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
- Tadashi Sofue
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric resistance welding for zinc plated steel plate
- Patent number 4,922,075
- Issue date May 1, 1990
- Kabushi Kaisha Toyoda Jidoshokki Seisakusho
- Tadashi Sofue
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR