Hiromichi Isaka

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Tokyo-To, JP

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Patents Grantslast 30 patents

Information Patent Grant
METHOD FOR MANUFACTURING HIGH-PURITY POTASSIUM FLUORONIOBATE CRYSTA...
- Patent number 6,860,941
- Issue date Mar 1, 2005
- Mitsui Mining & Smelting Co., Ltd.
- Yoshio Sohama
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for producing fluorinated potassium tantalate crystal
- Patent number 6,764,669
- Issue date Jul 20, 2004
- Mitsui Mining & Smelting Co., Ltd.
- Hiromichi Isaka
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for producing metal or metal compound comprising process of...
- Patent number 6,641,641
- Issue date Nov 4, 2003
- Mitsui Mining & Smelting Co., Ltd.
- Yoshio Sohama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Method for producing high purity potassium fluorotantalate crystal...
- Publication number 20030136330
- Publication date Jul 24, 2003
- Yoshio Sohama
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method for producing fluorinated potassium tantalate crystal and fl...
- Publication number 20030068267
- Publication date Apr 10, 2003
- Hiromichi Isaka
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Method for producing metal or metal compound comprising process of...
- Publication number 20020174744
- Publication date Nov 28, 2002
- Yoshio Sohama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...