Iwao Kurokawa

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Yokohama, JP

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Patents Grantslast 30 patents

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Plasma arc welding method and apparatus in which a swirling flow is...
- Patent number 5,734,144
- Issue date Mar 31, 1998
- Kabushiki Kaisha Komatsu Seisakusho
- Yoshihiro Yamaguchi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Plasma arc welding apparatus and welding method using the same
- Patent number 5,728,991
- Issue date Mar 17, 1998
- Kabushiki Kaisha Komatsu Seisakusho
- Hiroshi Takada
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Plasma torch with swirling gas flow in a shielding gas passage
- Patent number 5,726,414
- Issue date Mar 10, 1998
- Komatsu Ltd.
- Masamitsu Kitahashi
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Stand-off control apparatus for plasma processing machines
- Patent number 5,521,350
- Issue date May 28, 1996
- Kabushiki Kaisha Komatsu Seisakusho
- Yozo Nishi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Stopping a plasma arc cutter upon completion of cutting
- Patent number 5,225,658
- Issue date Jul 6, 1993
- Kabushiki Kaisha Komatsu Seisakusho
- Yoshihiro Yamaguchi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR