Osaka
Japan
4
2025-07-17
The entities that hold a legal rights for patent applications filed by inventor DOI Toshimitsu:
Toshimitsu DOI from Osaka, JP has applied for patents for these inventions. The list has both pending applications and granted patents:
WELDING POWER SUPPLY
#2 | 2015-12-31Welding system and communication method for welding system
#3 | 2011-09-15Power supply apparatus including fan for air cooling
#4 | 2005-09-01Soft-switching half-bridge inverter power supply system
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