Koji Tsukuma

Person

Shinnanyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Composite plate and production method therefor
- Patent number 10,696,022
- Issue date Jun 30, 2020
- Tosoh Corporation
- Isao Yamashita
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Composite plate and method for producing same
- Patent number 10,682,831
- Issue date Jun 16, 2020
- Tosoh Corporation
- Isao Yamashita
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Red light transmitting zirconia sintered body, method for producing...
- Patent number 9,249,057
- Issue date Feb 2, 2016
- Tosoh Corporation
- Koji Tsukuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
High-strength transparent zirconia sintered body, process for produ...
- Patent number 9,249,058
- Issue date Feb 2, 2016
- Tosoh Corporation
- Isao Yamashita
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Colored translucent zirconia sintered body, its production process...
- Patent number 9,174,877
- Issue date Nov 3, 2015
- Tosoh Corporation
- Shoichi Yamauchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Transparent zirconia sintered body, method for producing same, and...
- Patent number 8,815,760
- Issue date Aug 26, 2014
- Tosoh Corporation
- Masahiro Watanabe
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Zirconia sintered bodies with high total light transmission and hig...
- Patent number 8,785,008
- Issue date Jul 22, 2014
- Tosoh Corporation
- Isao Yamashita
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
High-strength transparent zirconia sintered body, process for produ...
- Patent number 8,722,555
- Issue date May 13, 2014
- Tosoh Corporation
- Isao Yamashita
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Colored alumina sintered body of high toughness and high translucen...
- Patent number 8,481,439
- Issue date Jul 9, 2013
- Tosoh Corporation
- Isao Yamashita
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for producing an orthodontic bracket
- Patent number 8,215,019
- Issue date Jul 10, 2012
- Tosoh Corporation
- Koji Tsukuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Orthodontic bracket and process for producing the same
- Patent number 8,133,051
- Issue date Mar 13, 2012
- Tosoh Corporation
- Koji Tsukuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
High toughness translucent alumina sintered body, method for produc...
- Patent number 7,888,279
- Issue date Feb 15, 2011
- Tosoh Corporation
- Koji Tsukuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Transparent zirconia sintered body
- Patent number 7,538,055
- Issue date May 26, 2009
- Tosoh Corporation
- Koji Tsukuma
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Lithium-manganese composite oxide granular secondary particle, meth...
- Patent number 7,217,406
- Issue date May 15, 2007
- Tosoh Corporation
- Koji Tsukuma
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Opaque silica glass article having transparent portion and process...
- Patent number 6,405,563
- Issue date Jun 18, 2002
- Tosoh Corporation
- Hiroya Nagata
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Opaque silica glass article having transparent portion and process...
- Patent number 6,312,775
- Issue date Nov 6, 2001
- Tosoh Quartz Corporation
- Hiroya Nagata
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
High purity transparent silica glass
- Patent number 6,133,178
- Issue date Oct 17, 2000
- Tosoh Corporation
- Nobusuke Yamada
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Opaque quartz glass and process for production thereof
- Patent number 5,972,488
- Issue date Oct 26, 1999
- Tosoh Corporation
- Hiroya Nagata
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for production of pure transparent quartz
- Patent number 5,665,133
- Issue date Sep 9, 1997
- Tosoh Corporation
- Koichi Orii
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
High-purity, opaque quartz glass, method for producing same and use...
- Patent number 5,585,173
- Issue date Dec 17, 1996
- Tosoh Corporation
- Kenji Kamo
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of producing oxynitride glass
- Patent number 5,229,336
- Issue date Jul 20, 1993
- Tosoh Corporation
- Tomoyuki Akiyama
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Achromatic lens for ultraviolet rays
- Patent number 5,028,967
- Issue date Jul 2, 1991
- Tosoh Corporation
- Nobusuke Yamada
- G02 - OPTICS
Information Patent Grant
Method of producing uniform silica glass block
- Patent number 4,938,788
- Issue date Jul 3, 1990
- Tosoh Corporation
- Hideaki Segawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Ceramic orthodontic bracket
- Patent number 4,915,625
- Issue date Apr 10, 1990
- Tosoh Corporation
- Koji Tsukuma
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
High-strength zirconia type sintered body and process for preparati...
- Patent number 4,774,041
- Issue date Sep 27, 1988
- Toyo Soda Manufacturing Co. Ltd.
- Koji Tsukuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Zirconia sintered body of improved light transmittance
- Patent number 4,758,541
- Issue date Jul 19, 1988
- Toyo Soda Manufacturing Co., Ltd.
- Koji Tsukuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Sintered product of zirconia and method of producing the same
- Patent number 4,690,910
- Issue date Sep 1, 1987
- Toyo Soda Manufacturing Co., Ltd.
- Koji Tsukuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
High-strength metal working tool made of a zirconia-type sintered m...
- Patent number 4,666,467
- Issue date May 19, 1987
- Toyo Soda Manufacturing Co., Ltd.
- Yoshihiro Matsumoto
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
High-strength zirconia type sintered body
- Patent number 4,587,225
- Issue date May 6, 1986
- Toyo Soda Manufacturing Co., Ltd.
- Koji Tsukuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
COMPOSITE PLATE AND METHOD FOR PRODUCING SAME
- Publication number 20150283791
- Publication date Oct 8, 2015
- TOSOH CORPORATION
- Isao Yamashita
- B32 - LAYERED PRODUCTS
Information Patent Application
COMPOSITE PLATE AND PRODUCTION METHOD THEREFOR
- Publication number 20150174863
- Publication date Jun 25, 2015
- TOSOH CORPORATION
- Isao Yamashita
- B32 - LAYERED PRODUCTS
Information Patent Application
HIGH-STRENGTH TRANSPARENT ZIRCONIA SINTERED BODY, PROCESS FOR PRODU...
- Publication number 20140145125
- Publication date May 29, 2014
- TOSOH CORPORATION
- Isao Yamashita
- B82 - NANO-TECHNOLOGY
Information Patent Application
COLORED TRANSLUCENT ZIRCONIA SINTERED BODY, ITS PRODUCTION PROCESS...
- Publication number 20130217562
- Publication date Aug 22, 2013
- TOSOH CORPORATION
- Shoichi Yamauchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
RED LIGHT TRANSMITTING ZIRCONIA SINTERED BODY, METHOD FOR PRODUCING...
- Publication number 20130037763
- Publication date Feb 14, 2013
- TOSOH CORPORATION
- Koji Tsukuma
- B82 - NANO-TECHNOLOGY
Information Patent Application
TRANSPARENT ZIRCONIA SINTERED BODY, METHOD FOR PRODUCING SAME, AND...
- Publication number 20120094823
- Publication date Apr 19, 2012
- TOSOH CORPORATION
- Masahiro Watanabe
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
HIGH-STRENGTH TRANSPARENT ZIRCONIA SINTERED BODY, PROCESS FOR PRODU...
- Publication number 20120058883
- Publication date Mar 8, 2012
- TOSOH CORPORATION
- Isao Yamashita
- G02 - OPTICS
Information Patent Application
COLORED ALUMINA SINTERED BODY OF HIGH TOUGHNESS AND HIGH TRANSLUCEN...
- Publication number 20110189622
- Publication date Aug 4, 2011
- TOSOH CORPORATION
- Isao Yamashita
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
ZIRCONIA SINTERED BODIES WITH HIGH TOTAL LIGHT TRANSMISSION AND HIG...
- Publication number 20100003630
- Publication date Jan 7, 2010
- TOSOH CORPORATION
- Isao Yamashita
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
High toughness translucent alumina sintered body, method for produc...
- Publication number 20090111067
- Publication date Apr 30, 2009
- TOSOH CORPORATION
- Koji Tsukuma
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
ORTHODONTIC BRACKET AND PROCESS FOR PRODUCING THE SAME
- Publication number 20090104578
- Publication date Apr 23, 2009
- TOSOH CORPORATION
- Koji Tsukuma
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Orthodontic Bracket and Process for Producing the Same
- Publication number 20070259303
- Publication date Nov 8, 2007
- TOSOH CORPORATION
- Koji Tsukuma
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Transparent zirconia sintered body
- Publication number 20070197368
- Publication date Aug 23, 2007
- TOSOH CORPORATION
- Koji Tsukuma
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Lithium-manganese composite oxide granular secondary particle, meth...
- Publication number 20050123832
- Publication date Jun 9, 2005
- Tosoh Corporation
- Koji Tsukuma
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
OPAQUE SILICA GLASS ARTICLE HAVING TRANSPARENT PORTION AND PROCESS...
- Publication number 20020078709
- Publication date Jun 27, 2002
- TOSOH CORPORATION
- Hiroya Nagata
- C03 - GLASS MINERAL OR SLAG WOOL

Koji Tsukuma

Person

Patents Grantslast 30 patents

Composite plate and production method therefor

Composite plate and method for producing same

Red light transmitting zirconia sintered body, method for producing...

High-strength transparent zirconia sintered body, process for produ...

Colored translucent zirconia sintered body, its production process...

Transparent zirconia sintered body, method for producing same, and...

Zirconia sintered bodies with high total light transmission and hig...

High-strength transparent zirconia sintered body, process for produ...

Colored alumina sintered body of high toughness and high translucen...

Process for producing an orthodontic bracket

Orthodontic bracket and process for producing the same

High toughness translucent alumina sintered body, method for produc...

Transparent zirconia sintered body

Lithium-manganese composite oxide granular secondary particle, meth...

Opaque silica glass article having transparent portion and process...

Opaque silica glass article having transparent portion and process...

High purity transparent silica glass

Opaque quartz glass and process for production thereof

Process for production of pure transparent quartz

High-purity, opaque quartz glass, method for producing same and use...

Method of producing oxynitride glass

Achromatic lens for ultraviolet rays

Method of producing uniform silica glass block

Ceramic orthodontic bracket

High-strength zirconia type sintered body and process for preparati...

Zirconia sintered body of improved light transmittance

Sintered product of zirconia and method of producing the same

High-strength metal working tool made of a zirconia-type sintered m...

High-strength zirconia type sintered body

Patents Applicationslast 30 patents

COMPOSITE PLATE AND METHOD FOR PRODUCING SAME

COMPOSITE PLATE AND PRODUCTION METHOD THEREFOR

HIGH-STRENGTH TRANSPARENT ZIRCONIA SINTERED BODY, PROCESS FOR PRODU...

COLORED TRANSLUCENT ZIRCONIA SINTERED BODY, ITS PRODUCTION PROCESS...

RED LIGHT TRANSMITTING ZIRCONIA SINTERED BODY, METHOD FOR PRODUCING...

TRANSPARENT ZIRCONIA SINTERED BODY, METHOD FOR PRODUCING SAME, AND...

HIGH-STRENGTH TRANSPARENT ZIRCONIA SINTERED BODY, PROCESS FOR PRODU...

COLORED ALUMINA SINTERED BODY OF HIGH TOUGHNESS AND HIGH TRANSLUCEN...

ZIRCONIA SINTERED BODIES WITH HIGH TOTAL LIGHT TRANSMISSION AND HIG...

High toughness translucent alumina sintered body, method for produc...

ORTHODONTIC BRACKET AND PROCESS FOR PRODUCING THE SAME

Orthodontic Bracket and Process for Producing the Same

Transparent zirconia sintered body

Lithium-manganese composite oxide granular secondary particle, meth...

OPAQUE SILICA GLASS ARTICLE HAVING TRANSPARENT PORTION AND PROCESS...