Tsugio Matsubara

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Patents Grantslast 30 patents

Information Patent Grant
Polymer and applications thereof
- Patent number 6,255,400
- Issue date Jul 3, 2001
- Mitsui Chemicals, Inc.
- Hiroshi Itoh
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Acrylamide polymers and use thereof
- Patent number 5,942,573
- Issue date Aug 24, 1999
- Mitsui Chemicals, Inc.
- Hirotoshi Doki
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Acrylamide polymers and use thereof
- Patent number 5,627,249
- Issue date May 6, 1997
- Mitsui Toatsu Chemicals, Incorporated
- Hirotoshi Doki
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Water-resistant surface coating formulations and paper coated there...
- Patent number 5,587,246
- Issue date Dec 24, 1996
- Mitsui Toatsu Chemicals, Inc.
- Haruki Tsutsumi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Admixture for hydraulic cement
- Patent number 5,489,626
- Issue date Feb 6, 1996
- Mitsui Toatsu Chemicals, Inc.
- Toshihiko Takaki
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Water-resistant surface coating formulations and paper coated there...
- Patent number 5,470,918
- Issue date Nov 28, 1995
- Mitsui Toatsu Chemicals, Inc.
- Haruki Tsutumi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...