Keiichi Seki

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Phosphor, method for producing phosphor, phosphor-containing compos...
- Patent number 8,828,272
- Issue date Sep 9, 2014
- Mitsubishi Chemical Corporation
- Takatoshi Seto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Europium- and strontium-based phosphor
- Patent number 8,801,970
- Issue date Aug 12, 2014
- MITSUBISHI CHEMICAL CORPORATION
- Hiromu Watanabe
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Nitrogen-containing alloy and method for producing phosphor using same
- Patent number 8,636,920
- Issue date Jan 28, 2014
- Mitsubishi Chemical Corporation
- Naoto Kijima
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Phosphor, method for producing phosphor, phosphor-containing compos...
- Patent number 8,574,459
- Issue date Nov 5, 2013
- Mitsubishi Chemical Corporation
- Takatoshi Seto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Alloy powder for raw material of inorganic functional material and...
- Patent number 8,460,580
- Issue date Jun 11, 2013
- Mitsubishi Chemical Corporation
- Hiromu Watanabe
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Phosphor and light-emitting device using same
- Patent number 8,277,687
- Issue date Oct 2, 2012
- Mitsubishi Chemical Corporation
- Tomoko Takahashi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Nitrogen-containing alloy and method for producing phosphor using same
- Patent number 8,123,980
- Issue date Feb 28, 2012
- Mitsubishi Chemical Corporation
- Naoto Kijima
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Encapsulation resins
- Patent number 7,943,719
- Issue date May 17, 2011
- The Regents of the University of California
- Craig J. Hawker
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Alloy powder for material of inorganic functional material precurso...
- Patent number 7,824,573
- Issue date Nov 2, 2010
- Mitsubishi Chemical Corporation
- Hiromu Watanabe
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of producing encapsulation resins
- Patent number 7,732,553
- Issue date Jun 8, 2010
- The Regents of the University of California
- Craig J. Hawker
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrochemical cell having a controlled electrode surface
- Patent number 6,790,555
- Issue date Sep 14, 2004
- Mitsubishi Chemical Corporation
- Eric S. Kolb
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Magnetic recording medium
- Patent number 6,033,759
- Issue date Mar 7, 2000
- Verbatim Corporation
- Keiichi Seki
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
CARBON MATERIAL COMPOSITION AND PRODUCTION METHOD THEREOF, AND NEGA...
- Publication number 20250011176
- Publication date Jan 9, 2025
- MITSUBISHI CHEMICAL CORPORATION
- Keiichi SEKI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
COATED CARBON MATERIAL, NEGATIVE ELECTRODE, AND SECONDARY BATTERY
- Publication number 20240258505
- Publication date Aug 1, 2024
- MITSUBISHI CHEMICAL CORPORATION
- Keiichi SEKI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
COATED CARBON MATERIAL, NEGATIVE ELECTRODE AND SECONDARY BATTERY
- Publication number 20240021802
- Publication date Jan 18, 2024
- MITSUBISHI CHEMICAL CORPORATION
- Tatsuya HASEGAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHOSPHOR, METHOD FOR PRODUCING PHOSPHOR, PHOSPHOR-CONTAINING COMPOS...
- Publication number 20140042898
- Publication date Feb 13, 2014
- MITSUBISHI CHEMICAL CORPORATION
- Takatoshi Seto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
ALLOY POWDER FOR AW MATERIAL OF INORGANIC FUNCTIONAL MATERIAL AND P...
- Publication number 20130214675
- Publication date Aug 22, 2013
- MITSUBISHI CHEMICAL CORPORATION
- Hiromu Watanabe
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
NITROGEN-CONTAINING ALLOY AND METHOD FOR PRODUCING PHOSPHOR USING SAME
- Publication number 20120171360
- Publication date Jul 5, 2012
- MITSUBISHI CHEMICAL CORPORATION
- Naoto Kijima
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
ALLOY POWDER FOR AW MATERIAL OF INORGANIC FUNCTIONAL MATERIAL AND P...
- Publication number 20100052515
- Publication date Mar 4, 2010
- MITSUBISHI CHEMICAL CORPORATION
- Hiromu WATANABE
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Encapsulation resins
- Publication number 20090221783
- Publication date Sep 3, 2009
- Craig J. Hawker
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
NITROGEN-CONTAINING ALLOY AND METHOD FOR PRODUCING PHOSPHOR USING T...
- Publication number 20090140205
- Publication date Jun 4, 2009
- MITSUBISHI CHEMICAL CORPORATION
- Naoto Kijima
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
ALLOY POWDER FOR AW MATERIAL OF INORGANIC FUNCTIONAL MATERIAL AND P...
- Publication number 20090134775
- Publication date May 28, 2009
- MITSUBISHI CHEMICAL CORPORATION
- Hiromu Watanabe
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
PHOSPHOR AND LIGHT-EMITTING DEVICE USING SAME
- Publication number 20090072255
- Publication date Mar 19, 2009
- MITSUBISHI CHEMICAL CORPORATION
- Tomoko Takahashi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Lithium secondary cell
- Publication number 20040110068
- Publication date Jun 10, 2004
- MITSUBISHI CHEMICAL CORPORATION
- Keiichi Seki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Electrochemical cell having a controlled electrode surface
- Publication number 20020106560
- Publication date Aug 8, 2002
- Eric S. Kolb
- H01 - BASIC ELECTRIC ELEMENTS

Keiichi Seki

Person

Patents Grantslast 30 patents

Phosphor, method for producing phosphor, phosphor-containing compos...

Europium- and strontium-based phosphor

Nitrogen-containing alloy and method for producing phosphor using same

Phosphor, method for producing phosphor, phosphor-containing compos...

Alloy powder for raw material of inorganic functional material and...

Phosphor and light-emitting device using same

Nitrogen-containing alloy and method for producing phosphor using same

Encapsulation resins

Alloy powder for material of inorganic functional material precurso...

Method of producing encapsulation resins

Electrochemical cell having a controlled electrode surface

Magnetic recording medium

Patents Applicationslast 30 patents

CARBON MATERIAL COMPOSITION AND PRODUCTION METHOD THEREOF, AND NEGA...

COATED CARBON MATERIAL, NEGATIVE ELECTRODE, AND SECONDARY BATTERY

COATED CARBON MATERIAL, NEGATIVE ELECTRODE AND SECONDARY BATTERY

PHOSPHOR, METHOD FOR PRODUCING PHOSPHOR, PHOSPHOR-CONTAINING COMPOS...

ALLOY POWDER FOR AW MATERIAL OF INORGANIC FUNCTIONAL MATERIAL AND P...

NITROGEN-CONTAINING ALLOY AND METHOD FOR PRODUCING PHOSPHOR USING SAME

ALLOY POWDER FOR AW MATERIAL OF INORGANIC FUNCTIONAL MATERIAL AND P...

Encapsulation resins

NITROGEN-CONTAINING ALLOY AND METHOD FOR PRODUCING PHOSPHOR USING T...

ALLOY POWDER FOR AW MATERIAL OF INORGANIC FUNCTIONAL MATERIAL AND P...

PHOSPHOR AND LIGHT-EMITTING DEVICE USING SAME

Lithium secondary cell

Electrochemical cell having a controlled electrode surface