Hiroaki OHYA

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Fukuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Elevator control device with carrier frequency switch circuit
- Patent number 8,348,020
- Issue date Jan 8, 2013
- Kabushiki Kaisha Yaskawa Denki
- Hiroaki Ohya
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
ELEVATOR CONTROL DEVICE
- Publication number 20110056771
- Publication date Mar 10, 2011
- KABUSHIKI KAISHA YASKAWA DENKI
- Hiroaki OHYA
- B66 - HOISTING LIFTING HAULING