Koei Matsukawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Elevator apparatus with sheave rotational speed difference determin...
- Patent number 7,637,357
- Issue date Dec 29, 2009
- Mitsubishi Electric Corporation
- Hiroyuki Nakagawa
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
Elevator Apparatus
- Publication number 20070227826
- Publication date Oct 4, 2007
- Mitsubishi Electric Corporation
- Hiroyuki Nakagawa
- B66 - HOISTING LIFTING HAULING