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Patents Grants
last 30 patents
Information
Patent Grant
Balancing arm for a medical lamp
Patent number
D337173
Issue date
Jul 6, 1993
Yamada Iryo Shomei Kabushiki Kaisha
Reijiro Yamada
D26 - Lighting
Information
Patent Grant
Shadowless lamp for medical use
Patent number
D336146
Issue date
Jun 1, 1993
Yamada Iryo Shomei Kabushiki Kaisha
Reijiro Yamada
D26 - Lighting
Information
Patent Grant
Shadowless lamp for medical use
Patent number
D335360
Issue date
May 4, 1993
Yamada Iryo Shomei Kabushiki Kaisha
Reijiro Yamada
D26 - Lighting
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
Information
Patent Grant
Photographic flash device for use with a shadowless lamp for surgic...
Patent number
4,384,315
Issue date
May 17, 1983
Yamada Iryo Shomei Kabushiki Kaisha
Yoshito Hayakawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Lighting fixture for use in medical operations and therapeutic trea...
Patent number
4,316,237
Issue date
Feb 16, 1982
Yamada Iryo Shomei Kabushiki Kaisha
Isao Yamada
F21 - LIGHTING
Information
Patent Grant
Lamp-moving device
Patent number
4,130,858
Issue date
Dec 19, 1978
Yamada Iryo Shomei Kabushiki Kaisha
Yoshito Hayakawa
F21 - LIGHTING
Information
Patent Grant
Focusing device for sealed type multi-lamp for obtaining shadowless...
Patent number
4,025,778
Issue date
May 24, 1977
Yamada Iryo Shomei Kabushiki Kaisha
Yoshito Hayakawa
F21 - LIGHTING
Information
Patent Grant
Clinical illumination apparatus
Patent number
4,025,777
Issue date
May 24, 1977
Yamada Iryo Shomei Kabushiki Kaisha
Yoshito Hayakawa
F21 - LIGHTING
Patents Applications
last 30 patents
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