Shigeo Iiri

Follow

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of processing organic quaternary ammonium hydroxide-containi...
- Patent number 5,545,309
- Issue date Aug 13, 1996
- Tama Chemicals Co., Ltd.
- Shumpei Shimizu
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of processing organic quaternary ammonium hydroxide-containi...
- Patent number 5,439,564
- Issue date Aug 8, 1995
- Tama Chemicals Co. Ltd.
- Shumpei Shimizu
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE