Kazuaki Sakai

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Fujisawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for recovering chemicals in a process of producing pulp by k...
- Patent number 6,585,880
- Issue date Jul 1, 2003
- Nippon Paper Industries Co., Ltd.
- Keigo Watanabe
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for removing anthraquinone type scale
- Patent number 4,561,935
- Issue date Dec 31, 1985
- Kawasaki Kasei Chemicals Ltd.
- Kazuaki Sakai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for removing anthraquinone type scale
- Patent number 4,481,073
- Issue date Nov 6, 1984
- Kawasaki Kasei Chemicals Ltd.
- Kazuaki Sakai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Purification of naphthoquinone
- Patent number 4,257,851
- Issue date Mar 24, 1981
- Kawasaki Kasei Chemicals Ltd.
- Ryo Matsuura
- C07 - ORGANIC CHEMISTRY