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Nishinomiya, JP
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Patents Grants
last 30 patents
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Patent Grant
Cyan dye-donor element used in thermal transfer and thermal transfe...
Patent number
5,077,264
Issue date
Dec 31, 1991
Sumitomo Chemical Company, Ltd.
Yoshiaki Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Magenta dye-donor element used in thermal transfer and thermal tran...
Patent number
5,013,712
Issue date
May 7, 1991
Sumitomo Chemical Company, Ltd.
Yoshiaki Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Process for producing dioxazine violet pigment
Patent number
4,804,417
Issue date
Feb 14, 1989
Sumitomo Chemical Company, Limited
Taira Fujita
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for producing copper phthalocyanine pigment
Patent number
4,785,091
Issue date
Nov 15, 1988
Sumitomo Chemical Company, Limited
Taira Fujita
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Production of dioxazine compound
Patent number
4,751,300
Issue date
Jun 14, 1988
Sumitomo Chemical Company, Limited
Taira Fujita
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for production of sulfuric acid semiesters
Patent number
4,450,114
Issue date
May 22, 1984
Sumitomo Chemical Company, Limited
Taira Fujita
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for the production of compounds having in the molecule at l...
Patent number
4,351,765
Issue date
Sep 28, 1982
Sumitomo Chemical Company, Limited
Taira Fujita
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...