Kazuya Koyama

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Tsukuba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing silicon
- Patent number 8,303,796
- Issue date Nov 6, 2012
- Sumitomo Chemical Company, Limited
- Kunio Saegusa
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Electrolytic process for the production of metallic copper and appa...
- Patent number 6,869,519
- Issue date Mar 22, 2005
- National Institute of Advanced Industrial Science and Technology
- Kazuya Koyama
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR PRODUCING REFINED METAL OR METALLOID
- Publication number 20120132034
- Publication date May 31, 2012
- Sumitomo Chemical Company, Limited
- Kunio Saegusa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
Method for producing indium-containing aqueous solution
- Publication number 20050155870
- Publication date Jul 21, 2005
- Sumitomo Chemical Company, Limited
- Kazuya Koyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Electrolytic process for the production of metallic copper and appa...
- Publication number 20030057104
- Publication date Mar 27, 2003
- NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
- Kazuya Koyama
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR