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Kazuo Hisamatsu
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Electrostatic image developing toner
Patent number
6,395,843
Issue date
May 28, 2002
Mitsui Chemicals, Inc.
Hiroshi Maekawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Electrostatic image developing toner
Patent number
6,284,423
Issue date
Sep 4, 2001
Mitsui Chemicals, Inc.
Hiroshi Maekawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Toner composition for electrophotography
Patent number
5,427,883
Issue date
Jun 27, 1995
Mitsui Toatsu Chemicals, Incorporated
Akira Misawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Toner composition for electrophotography
Patent number
5,279,915
Issue date
Jan 18, 1994
Mitsui Toatsu Chemicals, Inc.
Kazuo Hagiwara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Toner composition for electrophotography
Patent number
5,202,212
Issue date
Apr 13, 1993
Mitsui Toatsu Chemicals, Inc.
Masaaki Shin
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Resins for toner of electrophotography and method for manufacturing...
Patent number
5,037,715
Issue date
Aug 6, 1991
Mitsui Toatsu Chemicals, Inc.
Kazuo Hagiwara
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Resins for toner of electrophotography and method for manufacturing...
Patent number
4,981,923
Issue date
Jan 1, 1991
Mitsui Toatsu Chemicals, Inc.
Kazuo Hagiwara
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Toner composition for the electrophotography
Patent number
4,833,057
Issue date
May 23, 1989
Mitsui Toatsu Chemicals, Inc.
Akira Misawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Electrostatic image developing toner
Publication number
20010051704
Publication date
Dec 13, 2001
Hiroshi Maekawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...