公开(公告)号：USD827703S1

公开(公告)日：2018-09-04

申请号：US29563011

申请日：2016-05-02

Applicant: YAMAMOTO KOGAKU CO., LTD.

Designer： Tomoyuki Ooba ,  Hiroki Hashimoto

公开(公告)号：USD745082S1

公开(公告)日：2015-12-08

申请号：US29485873

申请日：2014-03-24

Applicant: YAMAMOTO KOGAKU CO., LTD.

Designer： Tomoyuki Ooba ,  Hiroki Hashimoto

公开(公告)号：US11686640B2

公开(公告)日：2023-06-27

申请号：US16636808

申请日：2018-08-27

Applicant: YAMAMOTO KOGAKU CO., LTD.

Inventor： Hiroki Hashimoto ,  Kenichi Sakamoto

IPC: G01L19/08 ,  A41D13/11 ,  G01L9/06

CPC classification number: G01L19/086 ,  A41D13/11 ,  G01L9/06

Abstract: A mask fitting level determination device includes a mask inner pressure detection unit inserted between a mask covering a mouth, nose and a face surface of a person to measure a pressure inside the mask. A circuit control unit derives information of a pressure value measured by the mask inner pressure detection unit and generates display information for the person wearing the mask. A determination display unit shows the person the display information generated by the circuit control unit. A battery unit supplies electricity to the circuit control unit and the determination display unit. A power supply switch starts and stops the supply of the electricity to the circuit control unit and the determination display unit. A start switch starts the mask inner pressure detection operation.

公开(公告)号：US11471632B2

公开(公告)日：2022-10-18

申请号：US16599713

申请日：2019-10-11

Applicant: YAMAMOTO KOGAKU CO., LTD.

Inventor： Hiroki Hashimoto ,  Kenichi Sakamoto

IPC: A61M16/06 ,  A61M16/00

Abstract: Provided is a mask fitting level determination device that has a significantly simple component configuration, that can be driven by a battery, that can be reduced in size to a palm size, that is inexpensive, that is operated by a simple operation method, and that does not require proficiency for accurate measurement. The mask fitting level determination device includes: a mask inner pressure detection unit 2 that is inserted between a face surface F of a mask wearing person and a worn mask 1; and a circuit control unit that sets a predefined threshold value in accordance with strength of breathing of the mask wearing person and determines a fitting level on the basis of a reference pressure value and a mask inner pressure value measure by the mask inner pressure detection unit 2; and a display unit 3 that displays the fitting level determined by the circuit control unit to the mask wearing person.

公开(公告)号：USD745081S1

公开(公告)日：2015-12-08

申请号：US29503718

申请日：2014-09-29

Applicant: YAMAMOTO KOGAKU CO., LTD.

Designer： Tomoyuki Ooba ,  Hiroki Hashimoto