Masafumi Okawa

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Tomisato-shi, JP

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Patents Applicationslast 30 patents

Information Patent Application
ELEVATOR CAR POWER SUPPLY SYSTEM
- Publication number 20190002241
- Publication date Jan 3, 2019
- Otis Elevator Company
- Masafumi Okawa
- B66 - HOISTING LIFTING HAULING
Information Patent Application
SERVICE CONTROLLER FOR DETERMINING CROWDING IN AN ELEVATOR CAR
- Publication number 20100116596
- Publication date May 13, 2010
- Otis Elevator Company
- Kato Mitsuru
- B66 - HOISTING LIFTING HAULING