Mitsumasa Umemoto

Person

Fukuoka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Production of p-acetylaminophenol from p-aminophenyl acetate
- Patent number 5,221,769
- Issue date Jun 22, 1993
- Mitsui Toatsu Chemicals Inc.
- Hideyuki Akieda
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing allyl bromides
- Patent number 5,208,400
- Issue date May 4, 1993
- Mitsui Toatsu Chemicals, Inc.
- Ryuichi Mita
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing p-hydroxyneophyl m-phenoxybenzyl ether
- Patent number 5,144,083
- Issue date Sep 1, 1992
- Mitsui Toatsu Chemicals, Incorporated
- Hideyuki Akieda
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of a difluorohalomethoxybenzene
- Patent number 5,105,021
- Issue date Apr 14, 1992
- Mitsui Toatsu Chemicals, Incorporated
- Hideyuki Akieda
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for purifying pentachloronitrobenzene by solid base treatment
- Patent number 5,104,491
- Issue date Apr 14, 1992
- Mitsui Toatsu Chemicals, Inc.
- Mitsumasa Umemoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-met...
- Patent number 4,873,373
- Issue date Oct 10, 1989
- Mitsui Toatsu Chemicals, Inc.
- Mitsumasa Umemoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpr...
- Patent number 4,542,243
- Issue date Sep 17, 1985
- Mitsui Toatsu Chemicals, Inc.
- Mitsumasa Umemoto
- C07 - ORGANIC CHEMISTRY

Mitsumasa Umemoto

Person

Patents Grantslast 30 patents

Production of p-acetylaminophenol from p-aminophenyl acetate

Process for producing allyl bromides

Process for producing p-hydroxyneophyl m-phenoxybenzyl ether

Preparation of a difluorohalomethoxybenzene

Method for purifying pentachloronitrobenzene by solid base treatment

Process for preparation of 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-met...

Process for producing 3-phenoxybenzyl 2-(4-alkoxyphenyl)-2-methylpr...