Humihide Nakamura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for treating cyanide waste liquid
- Patent number 7,253,332
- Issue date Aug 7, 2007
- Nihon Parkerizing Co., Ltd.
- Ryuji Kojima
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Nitriding of iron and steel parts in salt bath having improved corr...
- Patent number 7,238,244
- Issue date Jul 3, 2007
- Parker Netsushori Kogyo K.K.
- Tokuo Sato
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
Method for treating cyanide waste liquid
- Publication number 20050070752
- Publication date Mar 31, 2005
- Ryuji Kojima
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Method of salt bath nitriding for producing iron member having impr...
- Publication number 20040025971
- Publication date Feb 12, 2004
- Tokuo Sato
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...