Osaka
Japan
4
2023-12-14
The entities that hold a legal rights for patent applications filed by inventor MARUYAMA Ken:
Ken MARUYAMA from Osaka, JP has applied for patents for these inventions. The list has both pending applications and granted patents:
CELL STACK MANAGEMENT SYSTEM
#2 | 2020-04-30SOLENOID VALVE DRIVE CONTROL CIRCUIT, SOLENOID VALVE DRIVE DEVICE, AND FUEL INJECTION APPARATUS
#3 | 2009-03-12Switching control system and motor driving system
#4 | 2005-11-29PWM controlled motor drive
2715434 ⎘