Yoichi Hiraga

Follow

Person

Shin-nanyo, JA

People

Patents Grantslast 30 patents

Information Patent Grant
Process for removing sulfate ions from extracted phosphoric acid wi...
- Patent number 4,070,443
- Issue date Jan 24, 1978
- Toyo Soda Manufacturing Co., Ltd.
- Mitsuo Kikuchi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for removing organic material from wet process phosphoric acid
- Patent number 4,044,108
- Issue date Aug 23, 1977
- Toyo Soda Manufacturing Co., Ltd.
- Mitsuo Kikuchi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for removing sulfate ions from extracted phosphoric acid em...
- Patent number 4,041,134
- Issue date Aug 9, 1977
- Toyo Soda Manufacturing Co., Ltd.
- Mitsuo Kikuchi
- C01 - INORGANIC CHEMISTRY