Masao Yoshikawa

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Gifu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyimides, process for the preparation thereof and polyimide resin...
- Patent number 5,380,805
- Issue date Jan 10, 1995
- Mitsui Toatsu Chemicals, Inc.
- Shoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimides, process for the preparation thereof and polyimide resin...
- Patent number 5,380,820
- Issue date Jan 10, 1995
- Mitsui Toatsu Chemicals, Inc.
- Masahiro Ohta
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimides, process for the preparation thereof and polyimide resin...
- Patent number 5,288,843
- Issue date Feb 22, 1994
- Mitsui Toatsu Chemicals, Inc.
- Shoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for producing a paper-releasing guide-claw of copying machine
- Patent number 5,098,627
- Issue date Mar 24, 1992
- NTN-Rulon Industries Company Ltd.
- Masao Yoshikawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
All-aromatic polyester resin composition
- Patent number 4,748,213
- Issue date May 31, 1988
- NTN-Rulon Industries Co., Ltd.
- Masao Yoshikawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...