Hiroki Hashimoto

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Mask adhesion determination device
- Patent number 11,686,640
- Issue date Jun 27, 2023
- YAMAMOTO KOGAKU CO., LTD.
- Hiroki Hashimoto
- A41 - WEARING APPAREL
Information Patent Grant
Mask fitting level determination device
- Patent number 11,471,632
- Issue date Oct 18, 2022
- Yamamoto Kogaku Co., Ltd.
- Hiroki Hashimoto
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
PROTECTIVE EQUIPMENT FOR RESPIRATION, PROTECTIVE SYSTEM FOR RESPIRA...
- Publication number 20230128743
- Publication date Apr 27, 2023
- YAMAMOTO KOGAKU CO., LTD.
- Hiroki Hashimoto
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
MASK ADHESION DETERMINATION DEVICE
- Publication number 20200370984
- Publication date Nov 26, 2020
- YAMAMOTO KOGAKU CO., LTD.
- Hiroki HASHIMOTO
- G01 - MEASURING TESTING
Information Patent Application
MASK FITTING LEVEL DETERMINATION DEVICE
- Publication number 20200114106
- Publication date Apr 16, 2020
- YAMAMOTO KOGAKU CO., LTD.
- Hiroki Hashimoto
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE