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Naofumi EZAKI
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Oil-based inkjet ink, method for producing oil-based inkjet ink and...
Patent number
11,542,402
Issue date
Jan 3, 2023
Riso Kagaku Corporation
Naofumi Ezaki
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Oil-based magnetic ink
Patent number
11,021,624
Issue date
Jun 1, 2021
Riso Kagaku Corporation
Kenji Yamada
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Oil-based inkjet ink and method for producing oil-based inkjet ink
Patent number
10,920,096
Issue date
Feb 16, 2021
Riso Kagaku Corporation
Shinsuke Ozawa
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Oil-based inkjet ink and method for producing oil-based inkjet ink
Patent number
10,907,062
Issue date
Feb 2, 2021
Riso Kagaku Corporation
Tomohiro Matsuzawa
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Method for forming silicone-based cured film on ink discharge surfa...
Patent number
9,643,417
Issue date
May 9, 2017
Riso Kagaku Corporation
Naofumi Ezaki
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Non-aqueous pigment ink
Patent number
9,593,251
Issue date
Mar 14, 2017
Riso Kagaku Corporation
Tetsuo Hosoya
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Non-aqueous pigment ink
Patent number
9,365,736
Issue date
Jun 14, 2016
Riso Kagaku Corporation
Tetsuo Hosoya
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
W/O emulsion ink for inkjet
Patent number
8,999,049
Issue date
Apr 7, 2015
Riso Kagaku Corporation
Naofumi Ezaki
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
W/O emulsion ink for inkjet
Patent number
8,795,421
Issue date
Aug 5, 2014
Riso Kagaku Corporation
Kazuyuki Ando
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
W/O emulsion ink for inkjet
Patent number
8,778,068
Issue date
Jul 15, 2014
Riso Kagaku Corporation
Naofumi Ezaki
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Non-aqueous inkjet ink
Patent number
8,394,185
Issue date
Mar 12, 2013
Riso Kagaku Corporation
Naofumi Ezaki
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Inkjet ink
Patent number
8,232,329
Issue date
Jul 31, 2012
Tokyo University of Science Educational Foundation Administrative Organization
Hidenori Otsuka
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
OIL-BASED INKJET INK, METHOD FOR PRODUCING OIL-BASED INKJET INK AND...
Publication number
20200239719
Publication date
Jul 30, 2020
Riso Kagaku Corporation
Naofumi EZAKI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
OIL-BASED INKJET INK AND METHOD FOR PRODUCING OIL-BASED INKJET INK
Publication number
20200002557
Publication date
Jan 2, 2020
Riso Kagaku Corporation
Tomohiro MATSUZAWA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
OIL-BASED INKJET INK AND METHOD FOR PRODUCING OIL-BASED INKJET INK
Publication number
20190300737
Publication date
Oct 3, 2019
Riso Kagaku Corporation
Shinsuke OZAWA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
OIL-BASED MAGNETIC INK
Publication number
20190031901
Publication date
Jan 31, 2019
Riso Kagaku Corporation
Kenji YAMADA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
NON-AQUEOUS PIGMENT INK
Publication number
20160264806
Publication date
Sep 15, 2016
Riso Kagaku Corporation
Tetsuo HOSOYA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
METHOD FOR FORMING SILICONE-BASED CURED FILM ON INK DISCHARGE SURFA...
Publication number
20150174904
Publication date
Jun 25, 2015
Riso Kagaku Corporation
Naofumi Ezaki
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
NON-AQUEOUS PIGMENT INK
Publication number
20140011942
Publication date
Jan 9, 2014
Tetsuo HOSOYA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
W/O EMULSION INK FOR INKJET
Publication number
20130074727
Publication date
Mar 28, 2013
Riso Kagaku Corporation
Kazuyuki Ando
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
W/O EMULSION INK FOR INKJET
Publication number
20130025496
Publication date
Jan 31, 2013
Riso Kagaku Corporation
Naofumi EZAKI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
W/O EMULSION INK FOR INKJET
Publication number
20120125227
Publication date
May 24, 2012
Riso Kagaku Corporation
Naofumi EZAKI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Non-aqueous inkjet ink
Publication number
20100180795
Publication date
Jul 22, 2010
Riso Kagaku Corporation
Naofumi Ezaki
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Inkjet ink
Publication number
20100159212
Publication date
Jun 24, 2010
TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION
Hidenori Otsuka
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...