Katsumasa Yamamoto

Person

Hyogo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Epoxy resin composition
- Patent number 11,292,872
- Issue date Apr 5, 2022
- Sumitomo Seika Chemicals Co., Ltd.
- Ryota Harisaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Epoxy resin composition
- Patent number 11,111,382
- Issue date Sep 7, 2021
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki Fukuda
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Epoxy resin composition
- Patent number 11,091,627
- Issue date Aug 17, 2021
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki Fukuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Epoxy resin composition, process for producing same, and uses of sa...
- Patent number 11,066,510
- Issue date Jul 20, 2021
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki Fukuda
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Condensation-curable silicone resin composition, condensation-curab...
- Patent number 9,963,552
- Issue date May 8, 2018
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki Fukuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Addition-curable silicone resin composition, addition-curable silic...
- Patent number 9,783,717
- Issue date Oct 10, 2017
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki Fukuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Silicone resin composition, cured silicone resin, and sealed optica...
- Patent number 9,181,400
- Issue date Nov 10, 2015
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki Fukuda
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Composition for ultraviolet absorbent substance and ultraviolet abs...
- Patent number 8,540,904
- Issue date Sep 24, 2013
- Sumitomo Seika Chemicals Co., Ltd.
- Yusaku Masuhara
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Photoacid generator and photoreactive composition
- Patent number 8,216,768
- Issue date Jul 10, 2012
- Sumitomo Seika Chemicals Co., Ltd.
- Katsumasa Yamamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Novel sulfur-containing compound and method for preparing the same
- Patent number 5,834,621
- Issue date Nov 10, 1998
- Sumitomo Seika Chemicals Co., Ltd.
- Katsumasa Yamamoto
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
EPOXY RESIN COMPOSITION
- Publication number 20220243001
- Publication date Aug 4, 2022
- Sumitomo Seika Chemicals Co., Ltd.
- Ryota HARISAKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CURABLE RESIN COMPOSITION AND CURED PRODUCT THEREOF
- Publication number 20220106420
- Publication date Apr 7, 2022
- Sumitomo Seika Chemicals Co., Ltd.
- Yusaku MASUHARA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
EPOXY RESIN COMPOSITION
- Publication number 20200385565
- Publication date Dec 10, 2020
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki FUKUDA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
EPOXY RESIN COMPOSITION
- Publication number 20200385514
- Publication date Dec 10, 2020
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki FUKUDA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
EPOXY RESIN COMPOSITION, PROCESS FOR PRODUCING SAME, AND USES OF SA...
- Publication number 20200283566
- Publication date Sep 10, 2020
- Sumitomo Seika Chemicals Co., LTD
- Noriaki FUKUDA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EPOXY RESIN COMPOSITION, METHOD FOR PRODUCING SAME, AND USE OF COMP...
- Publication number 20200115554
- Publication date Apr 16, 2020
- Sumitomo Seika Chemicals Co., LTD
- Noriaki FUKUDA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
EPOXY RESIN COMPOSITION
- Publication number 20190359822
- Publication date Nov 28, 2019
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki FUKUDA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EPOXY RESIN COMPOSITION
- Publication number 20190352448
- Publication date Nov 21, 2019
- Sumitomo Seika Chemicals Co., Ltd.
- Ryota HARISAKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EPOXY RESIN COMPOSITION
- Publication number 20190322858
- Publication date Oct 24, 2019
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki FUKUDA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
EPOXY RESIN COMPOSITION, PROCESS FOR PRODUCING SAME, AND USES OF SA...
- Publication number 20190119434
- Publication date Apr 25, 2019
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki FUKUDA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
EPOXY RESIN COMPOSITION, METHOD FOR PRODUCING SAME, AND USE OF COMP...
- Publication number 20180327595
- Publication date Nov 15, 2018
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki FUKUDA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
ADDITION-CURABLE SILICONE RESIN COMPOSITION, ADDITION-CURABLE SILIC...
- Publication number 20160194537
- Publication date Jul 7, 2016
- Sumitomo Seika Chemicals Co., Ltd.
- Noriaki Fukuda
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CONDENSATION-CURABLE SILICONE RESIN COMPOSITION, CONDENSATION-CURAB...
- Publication number 20160194454
- Publication date Jul 7, 2016
- SUMITOMO SEIKA CHEMICALS CO., LTD.
- Noriaki FUKUDA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SILICONE RESIN COMPOSITION, CURED SILICONE RESIN, AND SEALED OPTICA...
- Publication number 20150284515
- Publication date Oct 8, 2015
- SUMITOMO SEIKA CHEMICALS CO., LTD.
- Noriaki Fukuda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPOSITION FOR ULTRAVIOLET ABSORBENT SUBSTANCE AND ULTRAVIOLET ABS...
- Publication number 20120313058
- Publication date Dec 13, 2012
- Sumitomo Seika Chemicals Co., Ltd.
- Yusaku Masuhara
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
PHOTOACID GENERATOR AND PHOTOREACTIVE COMPOSITION
- Publication number 20100233621
- Publication date Sep 16, 2010
- Sumitomo Seika Chemicals Co., Ltd.
- Katsumasa Yamamoto
- C07 - ORGANIC CHEMISTRY

Katsumasa Yamamoto

Person

Patents Grantslast 30 patents

Epoxy resin composition

Epoxy resin composition

Epoxy resin composition

Epoxy resin composition, process for producing same, and uses of sa...

Condensation-curable silicone resin composition, condensation-curab...

Addition-curable silicone resin composition, addition-curable silic...

Silicone resin composition, cured silicone resin, and sealed optica...

Composition for ultraviolet absorbent substance and ultraviolet abs...

Photoacid generator and photoreactive composition

Novel sulfur-containing compound and method for preparing the same

Patents Applicationslast 30 patents

EPOXY RESIN COMPOSITION

CURABLE RESIN COMPOSITION AND CURED PRODUCT THEREOF

EPOXY RESIN COMPOSITION

EPOXY RESIN COMPOSITION

EPOXY RESIN COMPOSITION, PROCESS FOR PRODUCING SAME, AND USES OF SA...

EPOXY RESIN COMPOSITION, METHOD FOR PRODUCING SAME, AND USE OF COMP...

EPOXY RESIN COMPOSITION

EPOXY RESIN COMPOSITION

EPOXY RESIN COMPOSITION

EPOXY RESIN COMPOSITION, PROCESS FOR PRODUCING SAME, AND USES OF SA...

EPOXY RESIN COMPOSITION, METHOD FOR PRODUCING SAME, AND USE OF COMP...

ADDITION-CURABLE SILICONE RESIN COMPOSITION, ADDITION-CURABLE SILIC...

CONDENSATION-CURABLE SILICONE RESIN COMPOSITION, CONDENSATION-CURAB...

SILICONE RESIN COMPOSITION, CURED SILICONE RESIN, AND SEALED OPTICA...

COMPOSITION FOR ULTRAVIOLET ABSORBENT SUBSTANCE AND ULTRAVIOLET ABS...

PHOTOACID GENERATOR AND PHOTOREACTIVE COMPOSITION