Ryuji Sakaguchi

Person

Chiba-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Burnishing method and burnishing apparatus
- Patent number 9,156,128
- Issue date Oct 13, 2015
- Showa Denko K.K.
- Ryuji Sakaguchi
- B24 - GRINDING POLISHING
Information Patent Grant
Lifting and drying device and method of manufacturing magnetic reco...
- Patent number 8,968,484
- Issue date Mar 3, 2015
- Showa Denko K.K.
- Ryuji Sakaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Abrasive tape, method for producing abrasive tape, and varnishing p...
- Patent number 8,512,100
- Issue date Aug 20, 2013
- Showa Denko K.K.
- Ryuji Sakaguchi
- B24 - GRINDING POLISHING
Information Patent Grant
Method for manufacturing perpendicular magnetic recording medium
- Patent number 8,398,870
- Issue date Mar 19, 2013
- Showa Denko K.K.
- Ryuji Sakaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, process for producing same, and magnetic...
- Patent number 8,012,613
- Issue date Sep 6, 2011
- Showa Denko K.K.
- Migaku Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, process for producing the same, and magn...
- Patent number 7,220,447
- Issue date May 22, 2007
- Showa Denko K.K.
- Masato Fukushima
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, production process thereof, magnetic rec...
- Patent number 6,844,046
- Issue date Jan 18, 2005
- Showa Denko Kabushiki Kaisha
- Akira Sakawaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, process for producing the same, and magn...
- Patent number 6,821,653
- Issue date Nov 23, 2004
- Showa Denko Kabushiki Kaisha
- Masato Fukushima
- G11 - INFORMATION STORAGE
Information Patent Grant
Process of producing a magnetic recording medium
- Patent number 6,582,758
- Issue date Jun 24, 2003
- Showa Denko Kabushiki Kaisha
- Akira Sakawaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing a magnetic recording medium
- Patent number 6,468,602
- Issue date Oct 22, 2002
- Showa Denko K.K.
- Ryuji Sakaguchi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Magnetic recording medium and method of producing the same
- Patent number 6,316,062
- Issue date Nov 13, 2001
- Showa Denko K.K.
- Ryuji Sakaguchi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Propylene block copolymer, process for producing the same, and resi...
- Patent number 5,684,099
- Issue date Nov 4, 1997
- Showa Denko K.K.
- Kazuyuki Watanabe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
BURNISHING METHOD AND BURNISHING APPARATUS
- Publication number 20130344776
- Publication date Dec 26, 2013
- SHOWA DENKO K.K.
- Ryuji SAKAGUCHI
- B24 - GRINDING POLISHING
Information Patent Application
FLOW-THROUGH WASHING METHOD AND FLOW-THROUGH WASHING APPARATUS
- Publication number 20120118322
- Publication date May 17, 2012
- Showa Denko K.K.
- Ryuji Sakaguchi
- B08 - CLEANING
Information Patent Application
LIFTING AND DRYING DEVICE AND METHOD OF MANUFACTURING MAGNETIC RECO...
- Publication number 20120042910
- Publication date Feb 23, 2012
- SHOWA DENKO K.K.
- Ryuji SAKAGUCHI
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING TH...
- Publication number 20100247961
- Publication date Sep 30, 2010
- Showa Denko K.K.
- Ryuji Sakaguchi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, PROCESS FOR PRODUCING SAME, AND MAGNETIC...
- Publication number 20100173175
- Publication date Jul 8, 2010
- Showa Denko K.K.
- Migaku Takahashi
- G11 - INFORMATION STORAGE
Information Patent Application
VERTICAL MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING REPRODUCI...
- Publication number 20100165510
- Publication date Jul 1, 2010
- TOHOKU UNIVERSITY
- Migaku Takahashi
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING TH...
- Publication number 20100136370
- Publication date Jun 3, 2010
- Ryuji Sakaguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Method for manufacturing perpendicular magnetic recording medium
- Publication number 20100084373
- Publication date Apr 8, 2010
- SHOWA DENKO K.K.
- Ryuji SAKAGUCHI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, PROCESS FOR PRODUCING SAME, AND MAGNETIC...
- Publication number 20100079911
- Publication date Apr 1, 2010
- Showa Denko K.K.
- Ryuji Sakaguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Burnishing tape and method of manufacturing the same, and method of...
- Publication number 20100003901
- Publication date Jan 7, 2010
- SHOWA DENKO K.K.
- Ryuji Sakaguchi
- B24 - GRINDING POLISHING
Information Patent Application
ABRASIVE TAPE, METHOD FOR PRODUCING ABRASIVE TAPE, AND VARNISHING P...
- Publication number 20100003900
- Publication date Jan 7, 2010
- SHOWA DENKO K.K.
- Ryuji Sakaguchi
- B24 - GRINDING POLISHING
Information Patent Application
MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING THE SAME, AND MA...
- Publication number 20090147401
- Publication date Jun 11, 2009
- Migaku Takahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, process for producing the same, and magn...
- Publication number 20050121839
- Publication date Jun 9, 2005
- Showa Denko K.K.
- Masato Fukushima
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM, PRODUCTION PROCESS THEREOF, MAGNETIC REC...
- Publication number 20040230049
- Publication date Nov 18, 2004
- Showa Denko K.K.
- Akira Sakawaki
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, production process thereof, magnetic rec...
- Publication number 20030199680
- Publication date Oct 23, 2003
- Showa Denko K.K.
- Akira Sakawaki
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, and manufacturing method for the same
- Publication number 20020064606
- Publication date May 30, 2002
- Showa Denko K.K.
- Ryuji Sakaguchi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Magnetic recording medium, process for producing the same, and magn...
- Publication number 20020055017
- Publication date May 9, 2002
- SHOWA A DENKO K.K.
- Masato Fukushima
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, production process thereof, magnetic rec...
- Publication number 20010031383
- Publication date Oct 18, 2001
- Akira Sakawaki
- G11 - INFORMATION STORAGE

Ryuji Sakaguchi

Person

Patents Grantslast 30 patents

Burnishing method and burnishing apparatus

Lifting and drying device and method of manufacturing magnetic reco...

Abrasive tape, method for producing abrasive tape, and varnishing p...

Method for manufacturing perpendicular magnetic recording medium

Magnetic recording medium, process for producing same, and magnetic...

Magnetic recording medium, process for producing the same, and magn...

Magnetic recording medium, production process thereof, magnetic rec...

Magnetic recording medium, process for producing the same, and magn...

Process of producing a magnetic recording medium

Method of manufacturing a magnetic recording medium

Magnetic recording medium and method of producing the same

Propylene block copolymer, process for producing the same, and resi...

Patents Applicationslast 30 patents

BURNISHING METHOD AND BURNISHING APPARATUS

FLOW-THROUGH WASHING METHOD AND FLOW-THROUGH WASHING APPARATUS

LIFTING AND DRYING DEVICE AND METHOD OF MANUFACTURING MAGNETIC RECO...

PERPENDICULAR MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING TH...

MAGNETIC RECORDING MEDIUM, PROCESS FOR PRODUCING SAME, AND MAGNETIC...

VERTICAL MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING REPRODUCI...

PERPENDICULAR MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING TH...

Method for manufacturing perpendicular magnetic recording medium

MAGNETIC RECORDING MEDIUM, PROCESS FOR PRODUCING SAME, AND MAGNETIC...

Burnishing tape and method of manufacturing the same, and method of...

ABRASIVE TAPE, METHOD FOR PRODUCING ABRASIVE TAPE, AND VARNISHING P...

MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING THE SAME, AND MA...

Magnetic recording medium, process for producing the same, and magn...

MAGNETIC RECORDING MEDIUM, PRODUCTION PROCESS THEREOF, MAGNETIC REC...

Magnetic recording medium, production process thereof, magnetic rec...

Magnetic recording medium, and manufacturing method for the same

Magnetic recording medium, process for producing the same, and magn...

Magnetic recording medium, production process thereof, magnetic rec...