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Hisamichi Murakami
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Yokohama, JP
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last 30 patents
Information
Patent Grant
Heat sensitive recording sheet
Patent number
4,407,892
Issue date
Oct 4, 1983
Mitsui Toatsu Chemicals, Incorporated
Akihiro Yamaguchi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Color-developer for pressure-sensitive recording sheets
Patent number
4,400,492
Issue date
Aug 23, 1983
Mitsui Toatsu Chemicals, Inc.
Makoto Asano
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Process for the preparation of 2,2'-bis(4-substituted phenol)sulfides
Patent number
4,380,671
Issue date
Apr 19, 1983
Mitsui Toatsu Chemicals, Incorporated
Akihiro Yamaguchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Color-developer for pressure-sensitive sheets
Patent number
4,379,897
Issue date
Apr 12, 1983
Mitsui Toatsu Chemicals, Inc.
Makoto Asano
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Oxidation-reduction reagents for a wet desulfurization process and...
Patent number
4,342,700
Issue date
Aug 3, 1982
Mitsui Toatsu Chemicals, Inc.
Katsuya Sakai
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Alpha-halogeno-beta-aminopropionitriles or the mineral acid salts t...
Patent number
4,338,259
Issue date
Jul 6, 1982
Mitsui Toatsu Chemicals, Inc.
Ryuichi Mita
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Heat sensitive recording sheet
Patent number
4,312,522
Issue date
Jan 26, 1982
Mitsui Toatsu Chemicals, Inc.
Akihiro Yamaguchi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Process for preparing bisphenol sulfone derivatives
Patent number
4,287,366
Issue date
Sep 1, 1981
Mitsui Toatsu Chemicals, Inc.
Akihiro Yamaguchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Oxidation-reduction reagents for a wet desulfurization process and...
Patent number
4,276,187
Issue date
Jun 30, 1981
Mitsui Toatsu Chemicals Incorporated
Katsuya Sakai
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2,2'-bisphenol sulfoxides
Patent number
4,275,240
Issue date
Jun 23, 1981
Mitsui Toatsu Chemicals, Inc.
Akihiro Yamaguchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Color-developing sheet for pressure-sensitive recording sheets
Patent number
4,262,938
Issue date
Apr 21, 1981
Mitsui Toatsu Chemicals, Incorporated
Akihiro Yamaguchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Color-developing sheet for pressure-sensitive recording sheets
Patent number
4,260,179
Issue date
Apr 7, 1981
Mitsui Toatsu Chemicals Inc.
Akihiro Yamaguchi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of 2,2'-bis[4-(1,1,3,3-tetramethylbutyl...
Patent number
4,248,804
Issue date
Feb 3, 1981
Mitsui Toatsu Chemicals, Incorporated
Akihiro Yamaguchi
C07 - ORGANIC CHEMISTRY