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Patents Grants
last 30 patents
Information
Patent Grant
Ink composition for PTP package, and ink
Patent number
11,326,066
Issue date
May 10, 2022
Yamamoto Chemicals, Inc.
Takamichi Amako
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Naphthalocyanine compound, method for producing same, and use thereof
Patent number
11,174,274
Issue date
Nov 16, 2021
Yamamoto Chemicals, Inc.
Kenichi Kato
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Phthalocyanine-based compound and uses of same
Patent number
11,015,061
Issue date
May 25, 2021
Yamamoto Chemicals, Inc.
Akihiro Kohsaka
G02 - OPTICS
Information
Patent Grant
Compound and intermediate thereof
Patent number
10,640,456
Issue date
May 5, 2020
Dai Nippon Printing Co., Ltd.
Masato Okada
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optical material and use thereof
Patent number
10,627,650
Issue date
Apr 21, 2020
Mitsui Chemicals, Inc.
Naoyuki Kakinuma
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical material and use thereof
Patent number
9,857,503
Issue date
Jan 2, 2018
Mitsui Chemicals, Inc.
Kouya Kojima
G02 - OPTICS
Information
Patent Grant
Coloring material and method for producing the same
Patent number
9,708,244
Issue date
Jul 18, 2017
Dai Nippon Printing Co., Ltd.
Masato Okada
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Color material and method for producing the same
Patent number
9,266,905
Issue date
Feb 23, 2016
Dai Nippon Printing Co., Ltd.
Masato Okada
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Heat-sensitive color-developing composition and heat-sensitive reco...
Patent number
8,888,906
Issue date
Nov 18, 2014
Yamamoto Chemicals, Inc.
Ryoji Yamaguchi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Organic transistor
Patent number
8,294,144
Issue date
Oct 23, 2012
Yamamoto Chemicals, Inc.
Takahiro Fujiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymethine ether compounds
Patent number
7,709,660
Issue date
May 4, 2010
Yamamoto Chemicals, Inc.
Nobuaki Sasaki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Nonsolvate-form crystal of polymethine compound and process for pro...
Patent number
7,485,404
Issue date
Feb 3, 2009
Yamamoto Chemicals, Inc.
Keiki Chichiishi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymethine ethers
Patent number
7,446,212
Issue date
Nov 4, 2008
Yamamoto Chemicals, Inc.
Nobuaki Sasaki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymethine compounds, method of producing same, and use thereof
Patent number
RE39105
Issue date
May 23, 2006
Yamamoto Chemicals, Inc.
Shigeo Fujita
430 - Radiation imagery chemistry: process, composition, or product thereof
Information
Patent Grant
Optical recording medium and novel azaporphyrin compounds
Patent number
6,969,764
Issue date
Nov 29, 2005
Mitsui Chemicals, Inc.
Akira Ogiso
G11 - INFORMATION STORAGE
Information
Patent Grant
Polymethine compound and near-infrared absorbing material comprisin...
Patent number
6,716,993
Issue date
Apr 6, 2004
Yamamoto Chemicals, Inc.
Nobuaki Sasaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium and porphycene compound
Patent number
6,627,288
Issue date
Sep 30, 2003
Mitsui Chemicals, Inc.
Akira Ogiso
G11 - INFORMATION STORAGE
Information
Patent Grant
Dipyrromethene-metal chelate compound and optical recording medium...
Patent number
6,479,123
Issue date
Nov 12, 2002
Mitsui Chemicals, Inc.
Taizo Nishimoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Phthalocyanine compounds, process for producing the same, and near...
Patent number
6,468,713
Issue date
Oct 22, 2002
Yamamoto Chemicals, Inc.
Hiroshi Terao
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Optical recording medium and dipyrromethene metal chelate compound...
Patent number
6,355,327
Issue date
Mar 12, 2002
Mitsui Chemicals, Inc.
Tsutami Misawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Polymethine compounds, method of producing same, and use thereof
Patent number
6,342,335
Issue date
Jan 29, 2002
Yamamoto Chemicals, Inc.
Shigeo Fujita
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Polymethine compounds, method of producing same, and use thereof
Patent number
6,261,737
Issue date
Jul 17, 2001
Yamamoto Chemicals, Inc.
Shigeo Fujita
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Color former composition and microcapsules containing the composition
Patent number
6,217,643
Issue date
Apr 17, 2001
ESCO Company
Francis R. Kearney
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Optical recording medium and dipyrromethene metal chelate compound...
Patent number
6,162,520
Issue date
Dec 19, 2000
Mitsui Chemicals, Inc.
Tsutami Misawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Diiminoisoindoline compound and the process for producing the compo...
Patent number
6,093,832
Issue date
Jul 25, 2000
Yamamoto Chemicals, Inc.
Yojiro Kumagae
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photothermal conversion material
Patent number
6,066,729
Issue date
May 23, 2000
Yamamoto Chemicals, Inc.
Shigeo Fujita
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Dipyrromethene metal chelate compounds
Patent number
6,060,606
Issue date
May 9, 2000
Mitsui Chemicals, Inc.
Tsutami Misawa
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing arylsulfonylureide compounds
Patent number
5,990,353
Issue date
Nov 23, 1999
Yamamoto Chemicals, Inc.
Nobuaki Sasaki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Preparation process of phthalide compound
Patent number
5,973,168
Issue date
Oct 26, 1999
Mitsui Chemicals, Inc.
Takeshi Nishimura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Phthalocyanine compound, its intermediate, process for producing th...
Patent number
5,973,140
Issue date
Oct 26, 1999
Yamamoto Chemicals, Inc.
Yojiro Kumagae
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
PRINTED MATERIAL
Publication number
20240101849
Publication date
Mar 28, 2024
YAMAMOTO CHEMICALS, INC.
Takamichi AMAKO
B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information
Patent Application
BENZOTRIAZOLE COMPOUND, LIGHT ABSORBER, AND RESIN COMPOSITION
Publication number
20220363650
Publication date
Nov 17, 2022
Mitsui Chemicals, Inc.
Masaru KAWAGUCHI
C07 - ORGANIC CHEMISTRY
Information
Patent Application
INK COMPOSITION FOR PTP PACKAGE, AND INK
Publication number
20210332253
Publication date
Oct 28, 2021
YAMAMOTO CHEMICALS, INC.
Takamichi AMAKO
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
NAPHTHALOCYANINE COMPOUND, METHOD FOR PRODUCING SAME, AND USE THEREOF
Publication number
20210107924
Publication date
Apr 15, 2021
YAMAMOTO CHEMICALS, INC.
Kenichi KATO
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PHTHALOCYANINE-BASED COMPOUND AND USES OF SAME
Publication number
20200032066
Publication date
Jan 30, 2020
YAMAMOTO CHEMICALS, INC.
Akihiro KOHSAKA
G02 - OPTICS
Information
Patent Application
COMPOUND AND INTERMEDIATE THEREOF
Publication number
20190308931
Publication date
Oct 10, 2019
DAI NIPPON PRINTING CO., LTD.
Masato OKADA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
OPTICAL MATERIAL AND USE THEREOF
Publication number
20160223839
Publication date
Aug 4, 2016
Mitsui Chemicals, Inc.
Naoyuki KAKINUMA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
OPTICAL MATERIAL AND USE THEREOF
Publication number
20160216407
Publication date
Jul 28, 2016
Mitsui Chemicals, Inc.
Kouya KOJIMA
G02 - OPTICS
Information
Patent Application
COLORING MATERIAL AND METHOD FOR PRODUCING THE SAME
Publication number
20150353472
Publication date
Dec 10, 2015
Dai Nippon Printing Co., Ltd.
Masato OKADA
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COLOR MATERIAL AND METHOD FOR PRODUCING THE SAME
Publication number
20140039201
Publication date
Feb 6, 2014
YAMAMOTO CHEMICALS, INC.
Masato Okada
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
HEAT-SENSITIVE COLOR-DEVELOPING COMPOSITION AND HEAT-SENSITIVE RECO...
Publication number
20130180430
Publication date
Jul 18, 2013
YAMAMOTO CHEMICALS, INC.
Ryoji Yamaguchi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
ORGANIC TRANSISTOR
Publication number
20110012098
Publication date
Jan 20, 2011
YAMAMOTO CHEMICALS, INC.
Takahiro Fujiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Nonsolvate-Form Crystal of Polymethine Compound, Process for Produc...
Publication number
20080091033
Publication date
Apr 17, 2008
YAMAMOTO CHEMICALS, INC.
Shigeo Fujita
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Optical recording media and dipyrrpomethene-metal chelate compounds
Publication number
20050142322
Publication date
Jun 30, 2005
MITSUI CHEMICALS, INC.
Taizo Nishimoto
C07 - ORGANIC CHEMISTRY
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last 30 trademarks