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Masao Kawamura
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Akashi, JP
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Patents Grants
last 30 patents
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Patent Grant
Process of producing high purity bis(4-hydroxyphenyl)sulfides and h...
Patent number
5,175,372
Issue date
Dec 29, 1992
Seitetsu Kagaku Co., Ltd.
Akira Onoe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Heat-sensitive recording materials containing high purity bis(4-hyd...
Patent number
5,102,858
Issue date
Apr 7, 1992
Seitetsu Kagaku Co., Ltd.
Akira Onoe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Novel thiophene derivatives and methods for producing the same
Patent number
5,101,049
Issue date
Mar 31, 1992
Seitetsu Kagaku Co., Ltd.
Hiroshi Goda
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Salt of 5-acetyl-2-alkylbenzenesulfonic acid
Patent number
4,943,655
Issue date
Jul 24, 1990
Seitetsu Kagaku Co., Ltd.
Kunioki Kato
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing N,N-dialkylaniline salt of 5-acetyl-2-alkylbe...
Patent number
4,853,158
Issue date
Aug 1, 1989
Seitetsu Kagaku Co., Ltd.
Kunioki Kato
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of producing alkali metal benzenesulfinates
Patent number
4,849,138
Issue date
Jul 18, 1989
Seitetsu Kagaku Co., Ltd.
Akira Onoe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
4-tert.-butyl-1,2-benzenedithiol, complex compounds derived therefr...
Patent number
4,835,317
Issue date
May 30, 1989
Seitetsu Kagaku Co., Ltd.
Michio Suzuki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Thiophene derivatives and methods for producing the same
Patent number
4,792,612
Issue date
Dec 20, 1988
Seitetsu Kagaku Co., Ltd.
Hiroshi Goda
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing polythiobisphenols and process for producing...
Patent number
4,740,578
Issue date
Apr 26, 1988
Seitetsu Kagaku Co., Ltd.
Akira Onoe
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Anti-I sorbent
Patent number
4,722,917
Issue date
Feb 2, 1988
Seitetsu Kagaku Co., Ltd.
Taiko Seno
G01 - MEASURING TESTING
Information
Patent Grant
Process for preparing uridine diphosphate-N-acetylgalactosamine
Patent number
4,604,349
Issue date
Aug 5, 1986
Seitetsu Kagaku Co., Ltd.
Taiko Seno
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing uridine diphosphate-N-acetylgalactosamine
Patent number
4,569,909
Issue date
Feb 11, 1986
Seitetsu Kagaku Co., Ltd.
Taiko Seno
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing p-hydroxybenzaldehyde
Patent number
4,273,941
Issue date
Jun 16, 1981
Seitetsu Kagaku Co., Ltd.
Masao Kawamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing p-hydroxybenzaldehyde
Patent number
4,195,041
Issue date
Mar 25, 1980
Seitetsu Kagaku Co., Ltd.
Masao Kawamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing thioanisole
Patent number
4,124,646
Issue date
Nov 7, 1978
Seitetsu Kagaku Co., Ltd.
Masao Kawamura
C07 - ORGANIC CHEMISTRY