Seiji Otake

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Patents Grantslast 30 patents

Information Patent Grant
Carbon commutator and process for producing the same
- Patent number 7,799,430
- Issue date Sep 21, 2010
- Mitsuba Corporation
- Hiroaki Tanaka
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Carbon Commutator and Process for Producing the Same
- Publication number 20090011242
- Publication date Jan 8, 2009
- Mitsuba Corporation
- Hiroaki Tanaka
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES