Masahiro Ohta

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Fluorine-containing polyamide
- Patent number 6,103,860
- Issue date Aug 15, 2000
- Mitsui Chemicals, Inc.
- Wataru Yamashita
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Low-birefringent organic optical component and a spirobiindan polymer
- Patent number 6,080,833
- Issue date Jun 27, 2000
- Mitsui Chemicals, Inc.
- Atsuo Otsuji
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Organic optical component
- Patent number 5,990,261
- Issue date Nov 23, 1999
- Mitsui Chemicals, Inc.
- Wataru Yamashita
- 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
Preparation process of polyhydroxycarboxylic acid
- Patent number 5,770,683
- Issue date Jun 23, 1998
- Mitsui Toatsu Chemicals, Inc.
- Yasunori Yoshida
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Linear polyamic acid, linear polyimide and thermoset polyimide
- Patent number 5,708,128
- Issue date Jan 13, 1998
- Mitsui Toatsu Chemicals, Inc.
- Hideaki Oikawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Carbon fiber-reinforced polimide resin composition
- Patent number 5,650,463
- Issue date Jul 22, 1997
- Mitsui Toatsu Chemicals, Inc.
- Masahiro Ohta
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation process of polyhydroxycarboxylic acid
- Patent number 5,646,238
- Issue date Jul 8, 1997
- Mitsui Toatsu Chemicals, Inc.
- Kan Ikeda
- 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
Bisimide compounds, polyimide resin composition prepared therefrom,...
- Patent number 5,554,765
- Issue date Sep 10, 1996
- Mitsui Toatsu Chemicals, Inc.
- Masahiro Ohta
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Resin forming compositions
- Patent number 5,525,704
- Issue date Jun 11, 1996
- Mitsui Toatsu Chemicals, Inc.
- Shoji Tamai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyimide based resin composition comprising cured phenolic resins...
- Patent number 5,514,748
- Issue date May 7, 1996
- Mitsui Toatsu Chemicals, Inc.
- Toshihiko Isutsumi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Lactic acid containing hydroxycarboxylic acid for the preparation o...
- Patent number 5,512,653
- Issue date Apr 30, 1996
- 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 5,506,311
- Issue date Apr 9, 1996
- Mitsui Toatsu Chemicals, Inc.
- Shoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Bismaleimide compounds
- Patent number 5,484,948
- Issue date Jan 16, 1996
- Mitsui Toatsu Chemicals, Inc.
- Keizaburo Yamaguchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyimides, process for the preparation thereof and polyimide resin...
- Patent number 5,459,233
- Issue date Oct 17, 1995
- Mitsui Toatsu Chemicals, Incorporated
- Shoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Bisimide compounds, polyimide resin composition prepared therefrom,...
- Patent number 5,457,154
- Issue date Oct 10, 1995
- Mitsui Toatsu Chemicals, Inc.
- Masahiro Ohta
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation process of polyhydroxycarboxylic acid
- Patent number 5,444,143
- Issue date Aug 22, 1995
- Mitsui Toatsu Chemicals, Inc.
- Masahiro Ohta
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing polyhydroxycarboxylic acid
- Patent number 5,440,008
- Issue date Aug 8, 1995
- Mitsui Toatsu Chemicals, Inc.
- Fumiaki Ichikawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyhydroxycarboxylic acid and purification process thereof
- Patent number 5,386,004
- Issue date Jan 31, 1995
- Mitsui Toatsu Chemicals, Inc.
- Shoji Obuchi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimides, process for the preparation thereof and polyimide resin...
- Patent number 5,380,805
- 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
Formed polyimide article
- Patent number 5,374,708
- Issue date Dec 20, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Shoji Tamai
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Aromatic diamine compounds, bismalemide compounds, thermosetting re...
- Patent number 5,364,967
- Issue date Nov 15, 1994
- Mitsui Toatsu Chemicals, Inc.
- Keizaburo Yamaguchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Processes for producing aromatic polycarbonate oligomer and aromati...
- Patent number 5,359,117
- Issue date Oct 25, 1994
- Mitsui Toatsu Chemicals, Inc.
- Yoshiyuki Totani
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide based resin composition
- Patent number 5,312,866
- Issue date May 17, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Toshihiko Tsutsumi
- 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
Polyimide and high-temperature adhesive of polyimide
- Patent number 5,278,276
- Issue date Jan 11, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Masahiro Ohta
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Readily processable polyimide and preparation process of same
- Patent number 5,268,446
- Issue date Dec 7, 1993
- Mitsui Toatsu Chemicals, Incorporated
- Shoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Readily processable polyimide and preparation process of same
- Patent number 5,268,447
- Issue date Dec 7, 1993
- Mitsui Toatsu Chemicals, Inc.
- Shoji Tamai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Masahiro Ohta

Person

Patents Grantslast 30 patents

Fluorine-containing polyamide

Low-birefringent organic optical component and a spirobiindan polymer

Organic optical component

Liquid crystal polyamide-imide copolymer

Preparation process of polyhydroxycarboxylic acid

Linear polyamic acid, linear polyimide and thermoset polyimide

Carbon fiber-reinforced polimide resin composition

Preparation process of polyhydroxycarboxylic acid

Purification process of polyhydroxycarboxylic acid

Bisimide compounds, polyimide resin composition prepared therefrom,...

Resin forming compositions

Polyimide based resin composition comprising cured phenolic resins...

Lactic acid containing hydroxycarboxylic acid for the preparation o...

Polyimides, process for the preparation thereof and polyimide resin...

Bismaleimide compounds

Polyimides, process for the preparation thereof and polyimide resin...

Bisimide compounds, polyimide resin composition prepared therefrom,...

Preparation process of polyhydroxycarboxylic acid

Process for preparing polyhydroxycarboxylic acid

Polyhydroxycarboxylic acid and purification process thereof

Polyimides, process for the preparation thereof and polyimide resin...

Polyimides, process for the preparation thereof and polyimide resin...

Formed polyimide article

Aromatic diamine compounds, bismalemide compounds, thermosetting re...

Processes for producing aromatic polycarbonate oligomer and aromati...

Polyimide based resin composition

Polyimides, process for the preparation thereof and polyimide resin...

Polyimide and high-temperature adhesive of polyimide

Readily processable polyimide and preparation process of same

Readily processable polyimide and preparation process of same