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Patent applications and USPTO patent grants for Ogasawara; Takaaki.The latest application filed is for "pulse arc welding apparatus".
Patent | Date |
---|---|
Pulse arc welding apparatus Grant 6,051,807 - Ogasawara , et al. April 18, 2 | 2000-04-18 |
Consumable electrode type AC pulse arc welding apparatus Grant 5,990,445 - Ogasawara , et al. November 23, 1 | 1999-11-23 |
Output control of short circuit welding power source Grant 4,546,234 - Ogasawara , et al. October 8, 1 | 1985-10-08 |
Automatic welding apparatus for upward welding of curved joint Grant 4,260,870 - Sekino , et al. April 7, 1 | 1981-04-07 |
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