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Hiroyuki Akahori
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Yokosuka, JP
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last 30 patents
Information
Patent Grant
Hydrazones and electrophotographic photoreceptors comprising them
Patent number
5,235,104
Issue date
Aug 10, 1993
Mitsui Toatsu Chemicals, Incorporated
Yasuyuki Yamada
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Hydrozones and electrophotographic photoreceptors comprising them
Patent number
5,132,190
Issue date
Jul 21, 1992
Mitsui Toatsu Chemicals Incorporated
Yasuyuki Yamada
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Aqueous suspension and preparation method thereof
Patent number
4,997,874
Issue date
Mar 5, 1991
Mitsui Toatsu Chemicals, Incorporated
Makoto Asano
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Temperature history indicator and its manufacturing method
Patent number
4,931,420
Issue date
Jun 5, 1990
Mitsui Toatsu Chemicals, Inc.
Makoto Asano
G01 - MEASURING TESTING
Information
Patent Grant
Novel benzoquinone derivatives and production process thereof as we...
Patent number
4,735,744
Issue date
Apr 5, 1988
Mitsui Toatsu Chemicals, Incorporated
Michihiro Tsujimoto
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the preparation of triarylmethane compounds
Patent number
4,632,987
Issue date
Dec 30, 1986
Mitsui Toatsu Chemicals Incorporated
Michihiro Tsujimoto
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Heat-sensitive recording unit
Patent number
4,561,000
Issue date
Dec 24, 1985
Mitsui Toatsu Chemicals, Inc.
Michihiro Tsujimoto
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Dyestuff-containing microscopic capsule suspension for record mater...
Patent number
4,480,002
Issue date
Oct 30, 1984
Mitsui Toatsu Chemicals, Incorporated
Makoto Asano
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Pressure sensitive recording unit
Patent number
4,398,753
Issue date
Aug 16, 1983
Mitsui Toatsu Chemicals, Incorporated
Makoto Asano
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Dyestuff-containing microscopic capsule dispersion for record mater...
Patent number
4,384,871
Issue date
May 24, 1983
Mitsui Toatsu Chemicals, Inc.
Makoto Asano
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS