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Mask
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Patent number 11,504,025
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Issue date Nov 22, 2022
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Nihon Kohden Corporation
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Yuya Baba
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Mask size gauge
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Patent number 11,497,415
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Issue date Nov 15, 2022
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Nihon Kohden Corporation
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Risa Osawa
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Mask
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Patent number 11,471,633
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Issue date Oct 18, 2022
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Nihon Kohden Corporation
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Yuya Baba
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Gas measurement adapter
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Patent number 10,912,912
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Issue date Feb 9, 2021
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Nihon Kohden Corporation
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Yuya Baba
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G01 - MEASURING TESTING