Yuichi Okawa

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for purifying polymer and polymer
- Patent number 8,450,440
- Issue date May 28, 2013
- Mitsui Chemicals, Inc.
- Tadahiro Sunaga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polymer, polymer preparation method, resist composition and pattern...
- Patent number 8,216,766
- Issue date Jul 10, 2012
- Shin-Etsu Chemical Co., Ltd.
- Takeru Watanabe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ring-opening metathesis polymer, hydrogenated product thereof, meth...
- Patent number 8,211,984
- Issue date Jul 3, 2012
- Mitsui Chemicals, Inc.
- Tadahiro Sunaga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing organic transition metal complex compound, me...
- Patent number 8,143,429
- Issue date Mar 27, 2012
- Mitsui Chemicals, Inc.
- Takashi Ochiai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydrogenated ring-opening metathesis polymer, resist composition an...
- Patent number 7,807,331
- Issue date Oct 5, 2010
- Shin-Etsu Chemical Co., Ltd.
- Tomohiro Kobayashi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrogenated ring-opening metathesis polymer, resist composition co...
- Patent number 7,794,915
- Issue date Sep 14, 2010
- Mitsui Chemicals, Inc.
- Tadahiro Sunaga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Crosslinkable aromatic resin having protonic acid group, and ion co...
- Patent number 7,345,135
- Issue date Mar 18, 2008
- Mitsui Chemicals, Inc.
- Junichi Ishikawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrogenated ring-opening metathesis polymer and process for produc...
- Patent number 7,081,501
- Issue date Jul 25, 2006
- Mitsui Chemicals, Inc.
- Yuichi Okawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide containing crosslinkable group and process for producing...
- Patent number 6,531,568
- Issue date Mar 11, 2003
- Mitsui Chemicals, Inc.
- Atsushi Shibuya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Crystalline polyimide for melt molding with satisfactory thermal st...
- Patent number 6,458,912
- Issue date Oct 1, 2002
- Mitsui Chemicals, Inc.
- Takashi Kuroki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid crystal polyamide-imide copolymer
- Patent number 5,821,319
- Issue date Oct 13, 1998
- Mitsui Chemicals, Inc.
- Atsushi Shibuya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide
- Patent number 5,508,377
- Issue date Apr 16, 1996
- Mitsui Toatsu Chemicals, Inc.
- Wataru Yamashita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide resin composition having excellent fatigue resistance and...
- Patent number 5,506,291
- Issue date Apr 9, 1996
- Mitsui Toatsu Chemicals, Inc.
- Yuichi Okawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide resin composition
- Patent number 5,494,996
- Issue date Feb 27, 1996
- Mitsui Toatsu Chemicals Inc.
- Shoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide
- Patent number 5,484,880
- Issue date Jan 16, 1996
- Mitsui Toatsu Chemicals, Inc.
- Wataru Yamashita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Readily soluble, amorphous polyimide, and preparation process of same
- Patent number 5,480,965
- Issue date Jan 2, 1996
- Mitsui Toatsu Chemicals, Inc.
- Wataru Yamashita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide
- Patent number 5,470,943
- Issue date Nov 28, 1995
- Mitsui Toatsu Chemicals, Inc.
- Yoshihiro Sakata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Aromatic diamine intermediates useful in the preparation of polyimides
- Patent number 5,354,890
- Issue date Oct 11, 1994
- Mitsui Toatsu Chemicals, Inc.
- Shoji Tamai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyimide and preparation process of same
- Patent number 5,354,839
- Issue date Oct 11, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Wataru Yamashita
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyimide composition
- Patent number 5,321,096
- Issue date Jun 14, 1994
- Mitsui Toatsu Chemical, Incorporated
- Yuichi Okawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Favorably processable polyimide and process for preparing polyimide
- Patent number 5,276,133
- Issue date Jan 4, 1994
- Mitsui Toatsu Chemicals, Inc.
- Yuichi Okawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide and process for the preparation thereof
- Patent number 5,260,388
- Issue date Nov 9, 1993
- Mitsui Toatsu Chemicals, Incorporated
- Shoji Tamai
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PURIFYING POLYMER AND POLYMER
- Publication number 20120208976
- Publication date Aug 16, 2012
- MITSUI CHEMICALS, INC.
- Tadahiro Sunaga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYMER, POLYMER PREPARATION METHOD, RESIST COMPOSITION AND PATTERN...
- Publication number 20090246686
- Publication date Oct 1, 2009
- Takeru WATANABE
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
RING-OPENING METATHESIS POLYMER, HYDROGENATED PRODUCT THEREOF, METH...
- Publication number 20090215974
- Publication date Aug 27, 2009
- Mitsui Chemicals Inc.
- Tadahiro Sunaga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
HYDROGENATED RING-OPENING METATHESIS POLYMER, RESIST COMPOSITION AN...
- Publication number 20090186307
- Publication date Jul 23, 2009
- Tomohiro KOBAYASHI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESS FOR PRODUCING ORGANIC TRANSITION METAL COMPLEX COMPOUND, ME...
- Publication number 20090124772
- Publication date May 14, 2009
- Mitsui Chemicals, Inc.
- Takashi Ochiai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Hydrogenated ring-opening metathesis polymer, resist composition co...
- Publication number 20080085470
- Publication date Apr 10, 2008
- MITSUI CHEMICALS, INC.
- Tadahiro Sunaga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Hydrogenated ring-opening metathesis polymer and process for produc...
- Publication number 20050119412
- Publication date Jun 2, 2005
- Mitsui Chemicals, Inc.
- Yuichi Okawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Crosslinkable aromatic resin having protonic acid group, and ion co...
- Publication number 20040191602
- Publication date Sep 30, 2004
- MITSUI CHEMICALS, INC.
- Junichi Ishikawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Optical members made of polymide resins
- Publication number 20030064235
- Publication date Apr 3, 2003
- Yuichi Okawa
- G02 - OPTICS

Yuichi Okawa

Person

Patents Grantslast 30 patents

Method for purifying polymer and polymer

Polymer, polymer preparation method, resist composition and pattern...

Ring-opening metathesis polymer, hydrogenated product thereof, meth...

Process for producing organic transition metal complex compound, me...

Hydrogenated ring-opening metathesis polymer, resist composition an...

Hydrogenated ring-opening metathesis polymer, resist composition co...

Crosslinkable aromatic resin having protonic acid group, and ion co...

Hydrogenated ring-opening metathesis polymer and process for produc...

Polyimide containing crosslinkable group and process for producing...

Crystalline polyimide for melt molding with satisfactory thermal st...

Liquid crystal polyamide-imide copolymer

Polyimide

Polyimide resin composition having excellent fatigue resistance and...

Polyimide resin composition

Polyimide

Readily soluble, amorphous polyimide, and preparation process of same

Polyimide

Aromatic diamine intermediates useful in the preparation of polyimides

Polyimide and preparation process of same

Polyimide composition

Favorably processable polyimide and process for preparing polyimide

Polyimide and process for the preparation thereof

Patents Applicationslast 30 patents

METHOD FOR PURIFYING POLYMER AND POLYMER

POLYMER, POLYMER PREPARATION METHOD, RESIST COMPOSITION AND PATTERN...

RING-OPENING METATHESIS POLYMER, HYDROGENATED PRODUCT THEREOF, METH...

HYDROGENATED RING-OPENING METATHESIS POLYMER, RESIST COMPOSITION AN...

PROCESS FOR PRODUCING ORGANIC TRANSITION METAL COMPLEX COMPOUND, ME...

Hydrogenated ring-opening metathesis polymer, resist composition co...

Hydrogenated ring-opening metathesis polymer and process for produc...

Crosslinkable aromatic resin having protonic acid group, and ion co...

Optical members made of polymide resins