Takeshi Kawashima

Person

Miyagi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Reflector, surface-emitting laser, light source, projection device,...
- Patent number 12,107,394
- Issue date Oct 1, 2024
- Ricoh Company, Ltd.
- Takeshi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride semiconductor multilayer structure, light emitting element,...
- Patent number 11,444,434
- Issue date Sep 13, 2022
- Ricoh Company, Ltd.
- Takeshi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Reflector, surface emitting laser, method for manufacturing reflect...
- Patent number 11,245,249
- Issue date Feb 8, 2022
- Ricoh Company, Ltd.
- Takeshi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting device and method of manufacturing light emitting de...
- Patent number 10,797,470
- Issue date Oct 6, 2020
- Ricoh Company, Ltd.
- Takeshi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
NITRIDE SEMICONDUCTOR STRUCTURE, LIGHT EMITTING ELEMENT, LIGHT SOUR...
- Publication number 20240322079
- Publication date Sep 26, 2024
- Takeshi KAWASHIMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT EMITTING ELEMENT, LIGHT SOURCE DEVICE, DISPLAY DEVICE, HEAD-M...
- Publication number 20230299561
- Publication date Sep 21, 2023
- Takeshi KAWASHIMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
REFLECTING MIRROR, VERTICAL CAVITY SURFACE EMITTING LASER, VERTICAL...
- Publication number 20230065551
- Publication date Mar 2, 2023
- Morimasa KAMINISHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
REFLECTOR, SURFACE-EMITTING LASER, LIGHT SOURCE, PROJECTION DEVICE,...
- Publication number 20210336421
- Publication date Oct 28, 2021
- RICOH COMPANY, LTD.
- Takeshi Kawashima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NITRIDE SEMICONDUCTOR MULTILAYER STRUCTURE, LIGHT EMITTING ELEMENT,...
- Publication number 20200244043
- Publication date Jul 30, 2020
- RICOH COMPANY, LTD.
- Takeshi KAWASHIMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING LIGHT EMITTING DE...
- Publication number 20200044416
- Publication date Feb 6, 2020
- RICOH COMPANY, LTD.
- TAKESHI KAWASHIMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
REFLECTOR, SURFACE EMITTING LASER, METHOD FOR MANUFACTURING REFLECT...
- Publication number 20190273360
- Publication date Sep 5, 2019
- Takeshi Kawashima
- F21 - LIGHTING

Takeshi Kawashima

Person

Patents Grantslast 30 patents

Reflector, surface-emitting laser, light source, projection device,...

Nitride semiconductor multilayer structure, light emitting element,...

Reflector, surface emitting laser, method for manufacturing reflect...

Light emitting device and method of manufacturing light emitting de...

Patents Applicationslast 30 patents

NITRIDE SEMICONDUCTOR STRUCTURE, LIGHT EMITTING ELEMENT, LIGHT SOUR...

LIGHT EMITTING ELEMENT, LIGHT SOURCE DEVICE, DISPLAY DEVICE, HEAD-M...

REFLECTING MIRROR, VERTICAL CAVITY SURFACE EMITTING LASER, VERTICAL...

REFLECTOR, SURFACE-EMITTING LASER, LIGHT SOURCE, PROJECTION DEVICE,...

NITRIDE SEMICONDUCTOR MULTILAYER STRUCTURE, LIGHT EMITTING ELEMENT,...

LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING LIGHT EMITTING DE...

REFLECTOR, SURFACE EMITTING LASER, METHOD FOR MANUFACTURING REFLECT...