Hiroyuki Ota

Person

Tsukuba-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device manufacturing method
- Patent number 8,367,560
- Issue date Feb 5, 2013
- Hitachi Kokusai Electric Inc.
- Arito Ogawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Semiconductor light-emitting device and fabrication method thereof
- Patent number 7,399,649
- Issue date Jul 15, 2008
- Pioneer Corporation
- Mamoru Miyachi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Variable optical element, a pickup apparatus having the variable op...
- Patent number 7,075,706
- Issue date Jul 11, 2006
- Pioneer Corporation
- Takanori Maeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Nitride semiconductor laser device and method for manufacturing the...
- Patent number 7,011,982
- Issue date Mar 14, 2006
- Pioneer Corporation
- Mamoru Miyachi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group III nitride compound semiconductor laser and manufacturing me...
- Patent number 6,795,471
- Issue date Sep 21, 2004
- Pioneer Corporation
- Atsushi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device providing laser light of two wavelengths...
- Patent number 6,748,001
- Issue date Jun 8, 2004
- Pioneer Corporation
- Mitsuru Nishitsuka
- G11 - INFORMATION STORAGE
Information Patent Grant
Nitride semiconductor laser and method of fabricating the same
- Patent number 6,711,192
- Issue date Mar 23, 2004
- Pioneer Corporation
- Kiyofumi Chikuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor device and method for manufacturing the same
- Patent number 6,693,303
- Issue date Feb 17, 2004
- Pioneer Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing a nitride semiconductor laser with a plated...
- Patent number 6,677,173
- Issue date Jan 13, 2004
- Pioneer Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor laser device and method for manufacturing the...
- Patent number 6,647,042
- Issue date Nov 11, 2003
- Pioneer Corporation
- Mamoru Miyachi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Variable optical element, a pickup apparatus having the variable op...
- Patent number 6,628,599
- Issue date Sep 30, 2003
- Pioneer Corporation
- Takanori Maeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for manufacturing a nitride semiconductor device and device...
- Patent number 6,555,846
- Issue date Apr 29, 2003
- Pioneer Corporation
- Atsushi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor light emitting device and manufacturing metho...
- Patent number 6,537,839
- Issue date Mar 25, 2003
- Pioneer Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride-based semiconductor light emitting device and manufacturing...
- Patent number 6,442,184
- Issue date Aug 27, 2002
- Pioneer Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor laser and method of fabricating the same
- Patent number 6,411,636
- Issue date Jun 25, 2002
- Pioneer Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gallium-nitride-based semiconductor light emitting device and fabri...
- Patent number 6,365,921
- Issue date Apr 2, 2002
- Pioneer Corporation
- Atsushi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for fabricating a group III nitride semiconductor device
- Patent number 6,335,218
- Issue date Jan 1, 2002
- Pioneer Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor light emitting device and manufacturing metho...
- Patent number 6,329,667
- Issue date Dec 11, 2001
- Pioneer Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group III nitride semiconductor light-emitting device having anticr...
- Patent number 6,259,122
- Issue date Jul 10, 2001
- Pioneer Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of fabricating nitride semiconductor laser
- Patent number 6,235,548
- Issue date May 22, 2001
- Pioneer Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing a semiconductor device
- Patent number 6,207,469
- Issue date Mar 27, 2001
- Pioneer Electronic Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing a semiconductor light emitting device
- Patent number 6,200,827
- Issue date Mar 13, 2001
- Pioneer Electronic Corporation
- Yoshinori Kimura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process for producing a luminous element of group III nitride semi-...
- Patent number 5,834,326
- Issue date Nov 10, 1998
- Pioneer Electronic Corporation
- Mamoru Miyachi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process for forming polarization inversion layer
- Patent number 5,382,334
- Issue date Jan 17, 1995
- Pioneer Electronic Corporation
- Satoshi Miyaguchi
- G02 - OPTICS
Information Patent Grant
Wavelength conversion element
- Patent number 5,337,399
- Issue date Aug 9, 1994
- Pioneer Electronic Corporation
- Hiroyuki Ota
- G02 - OPTICS
Information Patent Grant
Semiconductor light emitting element
- Patent number 5,274,251
- Issue date Dec 28, 1993
- Pioneer Electronic Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light emitting device
- Patent number 5,173,751
- Issue date Dec 22, 1992
- Pioneer Electronic Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Current transmitting mechanism in magnetic recording and reproducin...
- Patent number 5,151,839
- Issue date Sep 29, 1992
- Pioneer Electronic Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for producing a magnetic head
- Patent number 4,969,253
- Issue date Nov 13, 1990
- Pioneer Electronic Corporation
- Hiroyuki Ota
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head device
- Patent number 4,964,006
- Issue date Oct 16, 1990
- Pioneer Electronic Corporation
- Hiroyuki Ota
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor device manufacturing method and substrate processing...
- Publication number 20080318442
- Publication date Dec 25, 2008
- Hitachi Kokusai Electric Inc.
- Arito Ogawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Semiconductor light-emitting device and fabrication method thereof
- Publication number 20070059852
- Publication date Mar 15, 2007
- Mamoru Miyachi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Nitride semiconductor laser and method of fabricating the same
- Publication number 20040137655
- Publication date Jul 15, 2004
- PIONEER CORPORATION
- Kiyofumi Chikuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Nitride semiconductor laser device and method for manufacturing the...
- Publication number 20040121499
- Publication date Jun 24, 2004
- PIONEER CORPORATION
- Mamoru Miyachi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Variable optical element, a pickup apparatus having the variable op...
- Publication number 20040017758
- Publication date Jan 29, 2004
- PIONEER CORPORATION
- Takanori Maeda
- G02 - OPTICS
Information Patent Application
Semiconductor Laser and fabricating method therefor
- Publication number 20030021316
- Publication date Jan 30, 2003
- Yoshinori Kimura
- B82 - NANO-TECHNOLOGY
Information Patent Application
Nitride semiconductor device and method for manufacturing the same
- Publication number 20030001161
- Publication date Jan 2, 2003
- Pioneer Corporation
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Nitride semiconductor device
- Publication number 20020149026
- Publication date Oct 17, 2002
- Pioneer Cororation
- Hirokazu Takahashi
- B82 - NANO-TECHNOLOGY
Information Patent Application
Group III nitride compound semiconductor laser and manufacturing me...
- Publication number 20020150136
- Publication date Oct 17, 2002
- PIONEER CORPORATION
- Atsushi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Nitride semiconductor laser device and method for manufacturing the...
- Publication number 20020142503
- Publication date Oct 3, 2002
- PIONEER CORPORATION
- Mamoru Miyachi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Nitride semiconductor light emitting device and manufacturing metho...
- Publication number 20020084452
- Publication date Jul 4, 2002
- PIONEER CORPORATION
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Nitride semiconductor laser and method of manufacturing the same
- Publication number 20010055324
- Publication date Dec 27, 2001
- Hiroyuki Ota
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Variable optical element, a pickup apparatus having the variable op...
- Publication number 20010007549
- Publication date Jul 12, 2001
- Takanori Maeda
- G02 - OPTICS

Hiroyuki Ota

Person

Patents Grantslast 30 patents

Semiconductor device manufacturing method

Semiconductor light-emitting device and fabrication method thereof

Variable optical element, a pickup apparatus having the variable op...

Nitride semiconductor laser device and method for manufacturing the...

Group III nitride compound semiconductor laser and manufacturing me...

Semiconductor laser device providing laser light of two wavelengths...

Nitride semiconductor laser and method of fabricating the same

Nitride semiconductor device and method for manufacturing the same

Method of manufacturing a nitride semiconductor laser with a plated...

Nitride semiconductor laser device and method for manufacturing the...

Variable optical element, a pickup apparatus having the variable op...

Method for manufacturing a nitride semiconductor device and device...

Nitride semiconductor light emitting device and manufacturing metho...

Nitride-based semiconductor light emitting device and manufacturing...

Nitride semiconductor laser and method of fabricating the same

Gallium-nitride-based semiconductor light emitting device and fabri...

Method for fabricating a group III nitride semiconductor device

Nitride semiconductor light emitting device and manufacturing metho...

Group III nitride semiconductor light-emitting device having anticr...

Method of fabricating nitride semiconductor laser

Method for manufacturing a semiconductor device

Method for manufacturing a semiconductor light emitting device

Process for producing a luminous element of group III nitride semi-...

Process for forming polarization inversion layer

Wavelength conversion element

Semiconductor light emitting element

Semiconductor light emitting device

Current transmitting mechanism in magnetic recording and reproducin...

Method for producing a magnetic head

Magnetic head device

Patents Applicationslast 30 patents

Semiconductor device manufacturing method and substrate processing...

Semiconductor light-emitting device and fabrication method thereof

Nitride semiconductor laser and method of fabricating the same

Nitride semiconductor laser device and method for manufacturing the...

Variable optical element, a pickup apparatus having the variable op...

Semiconductor Laser and fabricating method therefor

Nitride semiconductor device and method for manufacturing the same

Nitride semiconductor device

Group III nitride compound semiconductor laser and manufacturing me...

Nitride semiconductor laser device and method for manufacturing the...

Nitride semiconductor light emitting device and manufacturing metho...

Nitride semiconductor laser and method of manufacturing the same

Variable optical element, a pickup apparatus having the variable op...