Katsuhiko Yamaguchi

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Crystallized glass and crystallized glass substrate for information...
- Patent number 9,236,075
- Issue date Jan 12, 2016
- Ohara Inc.
- Kiyoyuki Momono
- G11 - INFORMATION STORAGE
Information Patent Grant
Holding member for information storage disk and information storage...
- Patent number 6,819,526
- Issue date Nov 16, 2004
- Kabushiki Kaisha Ohara
- Mariko Kataoka
- G11 - INFORMATION STORAGE
Information Patent Grant
High rigidity glass-ceramic substrate
- Patent number 6,503,857
- Issue date Jan 7, 2003
- Kabushiki Kaisha Ohara
- Kousuke Nakajima
- G11 - INFORMATION STORAGE
Information Patent Grant
High rigidity glass-ceramic substrate
- Patent number 6,429,160
- Issue date Aug 6, 2002
- Kabushiki Kaisha Ohara
- Kousuke Nakajima
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass-ceramic substrate for a magnetic information storage medium
- Patent number 6,395,368
- Issue date May 28, 2002
- Kabushiki Kaisha Ohara
- Katsuhiko Yamaguchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Magnetic head having a slider made of a glass-ceramic
- Patent number 6,201,663
- Issue date Mar 13, 2001
- Kabushiki Kaisha Ohara
- Katsuhiko Yamaguchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass-ceramic substrate for a magnetic disk
- Patent number 6,191,058
- Issue date Feb 20, 2001
- Kabushiki Kaisha Ohara
- Katsuhiko Yamaguchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass-ceramic substrate for a magnetic head and a method for manufa...
- Patent number 6,034,011
- Issue date Mar 7, 2000
- Kabushiki Kaisha Ohara
- Katsuhiko Yamaguchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass-ceramic substrate for a magnetic disk
- Patent number 5,985,777
- Issue date Nov 16, 1999
- Kabushiki Kaisha Ohara
- Katsuhiko Yamaguchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Crystallized glass and method for manufacturing the same
- Patent number 5,895,767
- Issue date Apr 20, 1999
- Kabushiki Kaisha Ohara
- Katsuhiko Yamaguchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass-ceramic substrate for a magnetic disk
- Patent number 5,866,489
- Issue date Feb 2, 1999
- Kabushiki Kaisha Ohara
- Katsuhiko Yamaguchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Magnetic disk substrate and method for manufacturing the same
- Patent number 5,626,935
- Issue date May 6, 1997
- Kabushiki Kaisya Ohara
- Naoyuki Goto
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for detecting a defect in a glass-ceramic for magnetic disks
- Patent number 5,580,363
- Issue date Dec 3, 1996
- Kabushiki Kaisya Ohara
- Naoyuki Goto
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for manufacturing a crystalized glass magnetic disk substrate
- Patent number 5,567,217
- Issue date Oct 22, 1996
- Kabushiki Kaisya Ohara
- Naoyuki Goto
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass-ceramic for magnetic disks and method for manufacturing the same
- Patent number 5,391,522
- Issue date Feb 21, 1995
- Kabushiki Kaisya Ohara
- Naoyuki Goto
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
High dispersion optical glass
- Patent number 5,332,700
- Issue date Jul 26, 1994
- Kabushiki Kaisha Ohara
- Katsuhiko Yamaguchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical glass
- Patent number 5,320,987
- Issue date Jun 14, 1994
- Kabushiki Kaisha Ohara
- Tatsuya Senoo
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical glass
- Patent number 5,300,467
- Issue date Apr 5, 1994
- Kabushiki Kaisha Ohara
- Futoshi Ishizaki
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
CRYSTALLIZED GLASS AND CRYSTALLIZED GLASS SUBSTRATE FOR INFORMATION...
- Publication number 20140141285
- Publication date May 22, 2014
- OHARA INC.
- Kiyoyuki Momono
- G11 - INFORMATION STORAGE
Information Patent Application
Holding member for information storage disk and information storge...
- Publication number 20030099062
- Publication date May 29, 2003
- Mariko Kataoka
- G11 - INFORMATION STORAGE
Information Patent Application
High rigidity glass-ceramic substrate
- Publication number 20020032113
- Publication date Mar 14, 2002
- Kousuke Nakajima
- C03 - GLASS MINERAL OR SLAG WOOL

Katsuhiko Yamaguchi

Person

Patents Grantslast 30 patents

Crystallized glass and crystallized glass substrate for information...

Holding member for information storage disk and information storage...

High rigidity glass-ceramic substrate

High rigidity glass-ceramic substrate

Glass-ceramic substrate for a magnetic information storage medium

Magnetic head having a slider made of a glass-ceramic

Glass-ceramic substrate for a magnetic disk

Glass-ceramic substrate for a magnetic head and a method for manufa...

Glass-ceramic substrate for a magnetic disk

Crystallized glass and method for manufacturing the same

Glass-ceramic substrate for a magnetic disk

Magnetic disk substrate and method for manufacturing the same

Method for detecting a defect in a glass-ceramic for magnetic disks

Method for manufacturing a crystalized glass magnetic disk substrate

Glass-ceramic for magnetic disks and method for manufacturing the same

High dispersion optical glass

Optical glass

Optical glass

Patents Applicationslast 30 patents

CRYSTALLIZED GLASS AND CRYSTALLIZED GLASS SUBSTRATE FOR INFORMATION...

Holding member for information storage disk and information storge...

High rigidity glass-ceramic substrate