Kohei Yamamoto

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Circuit system for railroad vehicle
- Patent number 11,097,620
- Issue date Aug 24, 2021
- Kabushiki Kaisha Toshiba
- Kohei Yamamoto
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Lactic acid polymer and process for producing the same
- Patent number 8,092,830
- Issue date Jan 10, 2012
- Wako Pure Chemical Industries, Ltd.
- Kohei Yamamoto
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Lactic acid polymer and process for producing the same
- Patent number 7,019,106
- Issue date Mar 28, 2006
- Wako Pure Chemical Industries, Ltd.
- Kohei Yamamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
CIRCUIT SYSTEM FOR RAILROAD VEHICLE
- Publication number 20190299789
- Publication date Oct 3, 2019
- KABUSHIKI KAISHA TOSHIBA
- Kohei Yamamoto
- B60 - VEHICLES IN GENERAL
Information Patent Application
Lactic acid polymer and process for producing the same
- Publication number 20070259036
- Publication date Nov 8, 2007
- Kohei Yamamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Lactic acid polymer and process for producing the same
- Publication number 20060128938
- Publication date Jun 15, 2006
- Kohei Yamamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Lactic acid polymer and process for producing the same
- Publication number 20030153724
- Publication date Aug 14, 2003
- Kohei Yamamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...