Haruo Tanaka

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Hirakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Paper coating composition
- Patent number 5,158,611
- Issue date Oct 27, 1992
- Sumitomo Chemical Co., Ltd.
- Shigeru Ura
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper coating composition
- Patent number 5,131,951
- Issue date Jul 21, 1992
- Sumitomo Chemical Co., Ltd.
- Yoshifumi Yoshida
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for producing resin for paper coating
- Patent number 5,114,758
- Issue date May 19, 1992
- Sumitomo Chemical Co., Ltd.
- Shigeru Ura
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for producing resin for paper coating
- Patent number 5,034,501
- Issue date Jul 23, 1991
- Sumitomo Chemical Co., Ltd.
- Shigeru Ura
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Paper coating composition
- Patent number 4,657,821
- Issue date Apr 14, 1987
- Sumitomo Chemical Co., Ltd.
- Shigeru Ura
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for producing aqueous solution of polyureapolyamide thermos...
- Patent number 4,246,153
- Issue date Jan 20, 1981
- Sumitomo Chemical Company, Limited
- Hisao Takagishi
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE