Mitsuhiro Koyama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Head-mounted type lighting device
- Patent number 10,401,004
- Issue date Sep 3, 2019
- TAIYO CORPORATION
- Mitsuhiro Koyama
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Automatic focus position adjusting unit for use in shadowless light...
- Patent number 5,068,767
- Issue date Nov 26, 1991
- Yamada Iryo Shomei Kabushiki Kaisha
- Mitsuhiro Koyama
- G01 - MEASURING TESTING
Information Patent Grant
Shadowless lighting equipment for medical use
- Patent number 4,639,838
- Issue date Jan 27, 1987
- Yamada Iryo Shomei Kabushiki Kaisha
- Yasuhiro Kato
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL UNIT
- Publication number 20220280039
- Publication date Sep 8, 2022
- SYNQROA CO., LTD.
- Mitsuhiro KOYAMA
- G01 - MEASURING TESTING
Information Patent Application
HEAD-MOUNTED LIGHTING DEVICE
- Publication number 20190277481
- Publication date Sep 12, 2019
- SYNQROA CO., LTD.
- Mitsuhiro KOYAMA
- A42 - HEADWEAR
Information Patent Application
HEAD-MOUNTED TYPE LIGHTING DEVICE
- Publication number 20180306418
- Publication date Oct 25, 2018
- TAIYO CORPORATION
- Mitsuhiro KOYAMA
- F21 - LIGHTING
Information Patent Application
LIGHTING DEVICE
- Publication number 20170266395
- Publication date Sep 21, 2017
- SYNQROA CO., LTD.
- Mitsuhiro KOYAMA
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE