Takafumi Oka

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Static charge eliminator and static charge elimination method
- Patent number 11,139,638
- Issue date Oct 5, 2021
- Mitsubishi Electric Corporation
- Kyohei Yamakawa
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Method for manufacturing semiconductor light emitting device
- Patent number 7,897,418
- Issue date Mar 1, 2011
- Mitsubishi Electric Corporation
- Takafumi Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing semiconductor light-emitting element
- Patent number 7,879,684
- Issue date Feb 1, 2011
- Mitsubishi Electric Corporation
- Takafumi Oka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for manufacturing semiconductor optical device
- Patent number 7,751,456
- Issue date Jul 6, 2010
- Mitsubishi Electric Corporation
- Kazushige Kawasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing semiconductor optical element
- Patent number 7,611,916
- Issue date Nov 3, 2009
- Mitsubishi Electric Corporation
- Masatsugu Kusunoki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing semiconductor optical device
- Patent number 7,585,688
- Issue date Sep 8, 2009
- Mitsubishi Electric Corporation
- Takafumi Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing semiconductor optical device
- Patent number 7,456,039
- Issue date Nov 25, 2008
- Mitsubishi Electric Corporation
- Kazushige Kawasaki
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Static Charge Eliminator and Static Charge Elimination Method
- Publication number 20190356115
- Publication date Nov 21, 2019
- MITSUBISHI ELECTRIC CORPORATION
- Kyohei Yamakawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD FOR MANUFACTURING T...
- Publication number 20110193126
- Publication date Aug 11, 2011
- Mitsubishi Electric Corporation
- Takafumi Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING THE...
- Publication number 20100244074
- Publication date Sep 30, 2010
- Mitsubishi Electric Corporation
- Takafumi Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD FOR MANUFACTURING T...
- Publication number 20100219438
- Publication date Sep 2, 2010
- Mitsubishi Electric Corporation
- Takafumi Oka
- B82 - NANO-TECHNOLOGY
Information Patent Application
METHOD OF MANUFACTURING SEMICONDUCTOR OPTICAL ELEMENT
- Publication number 20090227055
- Publication date Sep 10, 2009
- Mitsubishi Electric Corporation
- Masatsugu Kusunoki
- B82 - NANO-TECHNOLOGY
Information Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND MANUFACTURING METHOD THEREFOR
- Publication number 20090184336
- Publication date Jul 23, 2009
- Mitsubishi Electric Corporation
- Takafumi Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MANUFACTURING SEMICONDUCTOR LIGHT EMITTING DEVICE
- Publication number 20090170225
- Publication date Jul 2, 2009
- Mitsubishi Electric Corporation
- Takafumi Oka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE
- Publication number 20080311694
- Publication date Dec 18, 2008
- Mitsubishi Electric Corporation
- Kazushige Kawasaki
- B82 - NANO-TECHNOLOGY
Information Patent Application
METHOD FOR MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE
- Publication number 20080293176
- Publication date Nov 27, 2008
- Mitsubishi Electric Corporation
- Takafumi Oka
- B82 - NANO-TECHNOLOGY
Information Patent Application
METHOD FOR MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE
- Publication number 20080280386
- Publication date Nov 13, 2008
- Mitsubishi Electric Corporation
- Kazushige Kawasaki
- B82 - NANO-TECHNOLOGY

Takafumi Oka

Person

Patents Grantslast 30 patents

Static charge eliminator and static charge elimination method

Method for manufacturing semiconductor light emitting device

Method for manufacturing semiconductor light-emitting element

Method for manufacturing semiconductor optical device

Method of manufacturing semiconductor optical element

Method for manufacturing semiconductor optical device

Method for manufacturing semiconductor optical device

Patents Applicationslast 30 patents

Static Charge Eliminator and Static Charge Elimination Method

SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD FOR MANUFACTURING T...

SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING THE...

SEMICONDUCTOR LIGHT-EMITTING ELEMENT AND METHOD FOR MANUFACTURING T...

METHOD OF MANUFACTURING SEMICONDUCTOR OPTICAL ELEMENT

SEMICONDUCTOR LIGHT EMITTING DEVICE AND MANUFACTURING METHOD THEREFOR

METHOD FOR MANUFACTURING SEMICONDUCTOR LIGHT EMITTING DEVICE

METHOD FOR MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE

METHOD FOR MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE

METHOD FOR MANUFACTURING SEMICONDUCTOR OPTICAL DEVICE