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Hiroji Shibazaki
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Takarazuka, JP
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last 30 patents
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Patent Grant
Calcium carbonate particles and processes for preparing same
Patent number
4,244,933
Issue date
Jan 13, 1981
Shiraishi Kogyo Kaisha, Ltd.
Hiroji Shibazaki
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Filled paper
Patent number
4,240,870
Issue date
Dec 23, 1980
Shiraishi Kogyo Kaisha, Ltd.
Hiroji Shibazaki
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for improving calcium carbonate
Patent number
4,219,590
Issue date
Aug 26, 1980
Shiraishi Kogyo Kaisha, Ltd.
Hiroji Shibazaki
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Dispersant for calcium carbonate
Patent number
4,175,066
Issue date
Nov 20, 1979
Kao Soap Co., Ltd.
Hiroji Shibazaki
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Calcium carbonate powders
Patent number
4,159,312
Issue date
Jun 26, 1979
Shiraishi Kogyo Kaisha, Ltd.
Hiroji Shibazaki
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for preparing precipitated calcium carbonate
Patent number
4,133,894
Issue date
Jan 9, 1979
Shiraishi Kogyo Kaisha, Ltd.
Hiroji Shibazaki
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing cubic crystals of calcium carbonate
Patent number
4,124,688
Issue date
Nov 7, 1978
Shiraishi Kogyo Kaisha, Ltd.
Hiroji Shibazaki
C01 - INORGANIC CHEMISTRY