Hisao Kawai

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording medium
- Patent number 7,169,487
- Issue date Jan 30, 2007
- Hoya Corporation
- Hisao Kawai
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of producing a substrate for an information recording medium...
- Patent number 6,428,396
- Issue date Aug 6, 2002
- Hoya Corporation
- Hideki Isono
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing magnetic recording medium
- Patent number 5,954,927
- Issue date Sep 21, 1999
- Hoya Corporation
- Masato Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media, methods for producing the same and magnet...
- Patent number 5,900,324
- Issue date May 4, 1999
- Hoya Corporation
- Keiji Moroishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and method for manufacturing the same
- Patent number 5,766,727
- Issue date Jun 16, 1998
- Hoya Corporation
- Keiji Moroishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing magnetic recording medium
- Patent number 5,746,893
- Issue date May 5, 1998
- Hoya Corporation
- Masato Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for surface roughness detection - using a magn...
- Patent number 5,640,089
- Issue date Jun 17, 1997
- Hoya Corporation
- Junichi Horikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing magnetic recording medium capable of record...
- Patent number 5,087,482
- Issue date Feb 11, 1992
- Hoya Corporation
- Hisao Kawai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium capable of recording information at a hig...
- Patent number 5,029,317
- Issue date Jul 2, 1991
- Hoya Corporation
- Hisao Kawai
- G11 - INFORMATION STORAGE
Information Patent Grant
Electroluminescent panel having a light absorption layer of germani...
- Patent number 4,634,639
- Issue date Jan 6, 1987
- Hoya Corporation
- Hisao Kawai
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Thin film EL element
- Patent number 4,590,128
- Issue date May 20, 1986
- Hoya Corporation
- Hisao Kawai
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Solar cell comprising an undulated transparent conductive layer
- Patent number 4,568,791
- Issue date Feb 4, 1986
- 501 Hoya Corporation
- Hisao Kawai
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
PLASTIC LENS COMPRISING MULTILAYER ANTIREFLECTIVE FILM AND METHOD F...
- Publication number 20090141357
- Publication date Jun 4, 2009
- HOYA CORPORATION
- Hitoshi KAMURA
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Magnetic recording medium
- Publication number 20030152810
- Publication date Aug 14, 2003
- HOYA CORPORATION, HOYA MAGNETICS SINGAPORE PTE. LTD.
- Hisao Kawai
- G11 - INFORMATION STORAGE
Information Patent Application
Method of producing a substrate for an information recording medium...
- Publication number 20020016132
- Publication date Feb 7, 2002
- Hoya Corporation
- Hideki Isono
- G11 - INFORMATION STORAGE

Hisao Kawai

Person

Patents Grantslast 30 patents

Magnetic recording medium

Method of producing a substrate for an information recording medium...

Method of manufacturing magnetic recording medium

Magnetic recording media, methods for producing the same and magnet...

Magnetic recording medium and method for manufacturing the same

Method of manufacturing magnetic recording medium

Method and apparatus for surface roughness detection - using a magn...

Method of manufacturing magnetic recording medium capable of record...

Magnetic recording medium capable of recording information at a hig...

Electroluminescent panel having a light absorption layer of germani...

Thin film EL element

Solar cell comprising an undulated transparent conductive layer

Patents Applicationslast 30 patents

PLASTIC LENS COMPRISING MULTILAYER ANTIREFLECTIVE FILM AND METHOD F...

Magnetic recording medium

Method of producing a substrate for an information recording medium...