Atsuyuki Watada

Person

Shizuoka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Surface-emission laser diode operable in the wavelength band of 1.1...
- Patent number 7,590,159
- Issue date Sep 15, 2009
- Ricoh Company, Ltd.
- Naoto Jikutani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Write-once-read-many optical recording media and process for record...
- Patent number 7,413,788
- Issue date Aug 19, 2008
- Ricoh Company, Ltd.
- Noboru Sasa
- G11 - INFORMATION STORAGE
Information Patent Grant
Surface-emission laser diode operable in the wavelength band of 1.1...
- Patent number 7,245,647
- Issue date Jul 17, 2007
- Ricoh Company, Ltd.
- Naoto Jikutani
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Surface-emission laser diode operable in the wavelength band of 1.1...
- Patent number 6,975,663
- Issue date Dec 13, 2005
- Ricoh Company, Ltd.
- Takuro Sekiya
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Write-once-read-many optical recording media and process for record...
- Patent number 6,933,032
- Issue date Aug 23, 2005
- Ricoh Company, Ltd.
- Noboru Sasa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium and recording method using the same
- Patent number 5,736,265
- Issue date Apr 7, 1998
- Ricoh Company, Ltd.
- Motoharu Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium having two magnetic layers with th...
- Patent number 5,487,046
- Issue date Jan 23, 1996
- Ricoh Company, Ltd.
- Atsuyuki Watada
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording method
- Patent number 5,459,701
- Issue date Oct 17, 1995
- Ricoh Company, Ltd.
- Toshiaki Tokita
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium
- Patent number 5,430,696
- Issue date Jul 4, 1995
- Ricoh Company, Ltd.
- Toshiaki Tokita
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium having first and second magnetic l...
- Patent number 5,420,833
- Issue date May 30, 1995
- Ricoh Company, Ltd.
- Motoharu Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording method and magneto-optical recording medium
- Patent number 5,369,629
- Issue date Nov 29, 1994
- Ricoh Company, Ltd.
- Atsuyuki Watada
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording method and recording medium for use in th...
- Patent number 5,337,293
- Issue date Aug 9, 1994
- Ricoh Company, Ltd.
- Toshiaki Tokita
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording method with switching and maintaining per...
- Patent number 5,323,366
- Issue date Jun 21, 1994
- Ricoh Company, Ltd.
- Atsuyuki Watada
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording material
- Patent number 4,797,331
- Issue date Jan 10, 1989
- Ricoh Company, Ltd.
- Atsuyuki Watada
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Metal oxide magnetic substance and a magnetic film consisting there...
- Patent number 4,788,095
- Issue date Nov 29, 1988
- Ricoh Company, Ltd.
- Hazime Machida
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Magneto optical recording medium
- Patent number 4,690,861
- Issue date Sep 1, 1987
- Ricoh Co., Ltd.
- Hitoshi Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Metal oxide magnetic substance and a magnetic film consisting there...
- Patent number 4,670,322
- Issue date Jun 2, 1987
- Ricoh Company, Ltd.
- Hitoshi Nakamura
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Magneto-optic recording medium having a metal oxide recording layer
- Patent number 4,670,323
- Issue date Jun 2, 1987
- Ricoh Company, Ltd.
- Hitoshi Nakamura
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
SURFACE-EMISSION LASER DIODE OPERABLE IN THE WAVELENGTH BAND OF 1.1...
- Publication number 20080043796
- Publication date Feb 21, 2008
- Naoto JIKUTANI
- G02 - OPTICS
Information Patent Application
Surface-emission laser diode operable in the wavelength band of 1.1...
- Publication number 20060093010
- Publication date May 4, 2006
- Takuro Sekiya
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Write-once-read-many optical recording media and process for record...
- Publication number 20060003136
- Publication date Jan 5, 2006
- Noboru Sasa
- G11 - INFORMATION STORAGE
Information Patent Application
Write-once-read-many optical recording media and process for record...
- Publication number 20040265532
- Publication date Dec 30, 2004
- Noboru Sasa
- G11 - INFORMATION STORAGE
Information Patent Application
Surface-emission laser diode operable in the wavelength band of 1.1...
- Publication number 20030053501
- Publication date Mar 20, 2003
- Takuro Sekiya
- H01 - BASIC ELECTRIC ELEMENTS

Atsuyuki Watada

Person

Patents Grantslast 30 patents

Surface-emission laser diode operable in the wavelength band of 1.1...

Write-once-read-many optical recording media and process for record...

Surface-emission laser diode operable in the wavelength band of 1.1...

Surface-emission laser diode operable in the wavelength band of 1.1...

Write-once-read-many optical recording media and process for record...

Magneto-optical recording medium and recording method using the same

Magneto-optical recording medium having two magnetic layers with th...

Magneto-optical recording method

Magneto-optical recording medium

Magneto-optical recording medium having first and second magnetic l...

Magneto-optical recording method and magneto-optical recording medium

Magneto-optical recording method and recording medium for use in th...

Magneto-optical recording method with switching and maintaining per...

Magneto-optical recording material

Metal oxide magnetic substance and a magnetic film consisting there...

Magneto optical recording medium

Metal oxide magnetic substance and a magnetic film consisting there...

Magneto-optic recording medium having a metal oxide recording layer

Patents Applicationslast 30 patents

SURFACE-EMISSION LASER DIODE OPERABLE IN THE WAVELENGTH BAND OF 1.1...

Surface-emission laser diode operable in the wavelength band of 1.1...

Write-once-read-many optical recording media and process for record...

Write-once-read-many optical recording media and process for record...

Surface-emission laser diode operable in the wavelength band of 1.1...