Katsuji Watanabe

Person

Omuta, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Polyimide and circuit substrate comprising the same
- Patent number 6,734,276
- Issue date May 11, 2004
- Mitsui Chemicals, Inc.
- Wataru Yamashita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyamic acid, polyimide, process for producing these, and film of...
- Patent number 6,710,160
- Issue date Mar 23, 2004
- Mitsui Chemicals, Inc.
- Wataru Yamashita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing polycondensation polymer compound
- Patent number 5,719,256
- Issue date Feb 17, 1998
- Mitsu Toatsu Chemicals, Inc.
- Shoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Purification process of polyhydroxycarboxylic acid
- Patent number 5,616,783
- Issue date Apr 1, 1997
- Mitsui Toatsu Chemicals, Inc.
- Yasunori Yoshida
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing high-purity aniline
- Patent number 5,616,806
- Issue date Apr 1, 1997
- Mitsui Toatsu Chemicals, Inc.
- Teruyuki Nagata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing high-purity aniline
- Patent number 5,283,365
- Issue date Feb 1, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Teruyuki Nagata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyrazoloisoquinoline derivatives, plant growth regulating compositi...
- Patent number 4,751,226
- Issue date Jun 14, 1988
- Fujisawa Pharmaceutical Co., Ltd.
- Yasuo Kamuro
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Novel polyimide and circuit substrate comprising the same
- Publication number 20030013838
- Publication date Jan 16, 2003
- Wataru Yamashita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Polyamic acid, polyimide, process for producing these, and film of...
- Publication number 20020188090
- Publication date Dec 12, 2002
- Wataru Yamashita
- G01 - MEASURING TESTING

Katsuji Watanabe

Person

Patents Grantslast 30 patents

Polyimide and circuit substrate comprising the same

Polyamic acid, polyimide, process for producing these, and film of...

Process for preparing polycondensation polymer compound

Purification process of polyhydroxycarboxylic acid

Process for preparing high-purity aniline

Process for preparing high-purity aniline

Pyrazoloisoquinoline derivatives, plant growth regulating compositi...

Patents Applicationslast 30 patents

Novel polyimide and circuit substrate comprising the same

Polyamic acid, polyimide, process for producing these, and film of...