Hirozo Segawa

Person

Niigata, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Purification process of methacrylic acid
- Patent number 5,196,578
- Issue date Mar 23, 1993
- Mitsui Toatsu Chemicals, Incorporated
- Morimasa Kuragano
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing chlorosulfonyl isocyanate
- Patent number 5,118,487
- Issue date Jun 2, 1992
- Kuraray Co., Ltd.
- Akira Nakamura
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Purification and preparation processes for methyl methacrylate
- Patent number 5,028,735
- Issue date Jul 2, 1991
- Mitsui Toatsu Chemicals, Inc.
- Hirozo Segawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Quenching process of reaction product gas containing methacrylic ac...
- Patent number 4,987,252
- Issue date Jan 22, 1991
- Mitsui Toatsu Chemicals, Incorporated
- Morimasa Kuragano
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for the prevention of post oxidation of methacrolein
- Patent number 4,968,846
- Issue date Nov 6, 1990
- Mitsui Toatsu Chemicals, Incorporated
- Morimasa Kuragano
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2,3-Dicyano 6 phenyl pyrazine herbicides
- Patent number 4,460,403
- Issue date Jul 17, 1984
- Kyowa Gas Chemical Industry Co., Ltd.
- Tetsuo Takematsu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Neutron shielding polymer composition and a process for producing t...
- Patent number 4,275,174
- Issue date Jun 23, 1981
- Kyowa Gas Chemical Industry Co., Ltd.
- Shin-ichi Tadokoro
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
2,3-Dicyanopyrazines
- Patent number 4,259,489
- Issue date Mar 31, 1981
- Kyowa Gas Chemical Industry Co. Ltd.
- Tetsuo Takematsu
- C07 - ORGANIC CHEMISTRY

Hirozo Segawa

Person

Patents Grantslast 30 patents

Purification process of methacrylic acid

Process for producing chlorosulfonyl isocyanate

Purification and preparation processes for methyl methacrylate

Quenching process of reaction product gas containing methacrylic ac...

Method for the prevention of post oxidation of methacrolein

2,3-Dicyano 6 phenyl pyrazine herbicides

Neutron shielding polymer composition and a process for producing t...

2,3-Dicyanopyrazines