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Sadakatsu Kumoi
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Hikari-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for recovering hydrogen chloride from chlorine based waste a...
Patent number
6,896,865
Issue date
May 24, 2005
Tosoh Corporation
Sadakatsu Kumoi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Ion-exchanger, process for production thereof, and process for remo...
Patent number
5,948,265
Issue date
Sep 7, 1999
Tosoh Corporation
Hidetoshi Wakamatsu
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method of producing high-quality polyethylenepolyamines
Patent number
5,861,537
Issue date
Jan 19, 1999
Tosoh Corporation
Shunya Shinohara
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for removing chlorate salt from aqueous alkali chloride sol...
Patent number
5,279,717
Issue date
Jan 18, 1994
Tosoh Corporation
Kengo Okajima
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Method for treating an amine-containing waste water
Patent number
5,039,424
Issue date
Aug 13, 1991
Tosoh Corporation
Keiji Mitarai
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Process for preparation of alkyleneamines
Patent number
4,906,782
Issue date
Mar 6, 1990
Toyo Soda Manufacturing Co., Ltd.
Yasushi Hara
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing polyamines
Patent number
4,845,297
Issue date
Jul 4, 1989
Toyo Soda Manufacturing Co., Ltd.
Sadakatsu Kumoi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing bis [.beta.(N,N-dimethylamino)ethyl]ether
Patent number
4,625,064
Issue date
Nov 25, 1986
Toyo Soda Manufacturing Co., Ltd.
Sadakatsu Kumoi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing bis[.beta.-(N,N-dimethylamino)alkyl]-ether
Patent number
4,492,803
Issue date
Jan 8, 1985
Toyo Soda Manufacturing Co., Ltd.
Sadakatsu Kumoi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing bis[.beta.-(N,N-dimethylamino)ethyl]ether
Patent number
4,490,556
Issue date
Dec 25, 1984
Toyo Soda Manufacturing Co., Ltd.
Sadakatsu Kumoi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for reaction in catalyst suspension system
Patent number
4,182,919
Issue date
Jan 8, 1980
Toyo Soda Manufacturing Co., Ltd.
Shunsuke Mabuchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for hydrogenation of organic peroxide
Patent number
4,123,616
Issue date
Oct 31, 1978
Toyo Soda Manufacturing Co., Ltd.
Shunsuke Mabuchi
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
Method for recovering hydrogen chloride from chlorine based waste a...
Publication number
20010038818
Publication date
Nov 8, 2001
Sadakatsu Kumoi
C01 - INORGANIC CHEMISTRY