N.P.W. Technical Laboratory Co.

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for re-using wires used once for mash seam welding
- Patent number 5,249,725
- Issue date Oct 5, 1993
- N.P.W. Technical Laboratory Co.
- Minoru Nakatsu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Seam welding apparatus with edge detection
- Patent number 4,879,445
- Issue date Nov 7, 1989
- N.P.W. Technical Laboratory Co.
- Hitoshi Kawano
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Seam welder with feedback control to compensate for varying welding...
- Patent number 4,868,364
- Issue date Sep 19, 1989
- Shinko Electric Co., Ltd.
- Hitoshi Kawano
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of lap welding eventual can blank consisting of metal sheet...
- Patent number 4,732,026
- Issue date Mar 22, 1988
- N.P.W. Technical Laboratory, Co.
- Kunikatsu Ban
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR