Yujiro Kojima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
LED illumination device having light reflecting and transmitting me...
- Patent number 11,221,112
- Issue date Jan 11, 2022
- ABRAM CORPORATION
- Hidetoshi Mitsuzuka
- F21 - LIGHTING
Information Patent Grant
Light-emitting diode-type illumination device
- Patent number 11,156,329
- Issue date Oct 26, 2021
- ABRAM CORPORATION
- Hidetoshi Mitsuzuka
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
LIGHT-EMITTING DIODE-TYPE ILLUMINATION DEVICE
- Publication number 20200217462
- Publication date Jul 9, 2020
- ABRAM Corporation
- Hidetoshi Mitsuzuka
- F21 - LIGHTING
Information Patent Application
LIGHT-EMITTING DIODE-TYPE ILLUMINATION DEVICE
- Publication number 20200141544
- Publication date May 7, 2020
- ABRAM Corporation
- Hidetoshi Mitsuzuka
- F21 - LIGHTING