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    Gas detection device
    2.
    发明授权
    Gas detection device 有权

    公开(公告)号：US11971381B2

    公开(公告)日：2024-04-30

    申请号：US17272967

    申请日：2018-09-05

    Applicant: Osaka Gas Co., Ltd.

    Inventor： Susumu Takami ,  Atsushi Nonaka ,  Hisao Onishi

    IPC: G01N27/14 ,  G01N27/406 ,  G01N27/407 ,  G01N33/00 ,  G01N27/22

    CPC classification number: G01N27/14 ,  G01N27/4067 ,  G01N27/4075 ,  G01N33/0009 ,  G01N2027/222

    Abstract: Provided is a gas detection device used in a humid environment such as a kitchen or a cooking room, which is excellent in moisture resistance and also excellent in sensitivity. In a gas detection device which includes a thin film type gas sensor including a heater portion, a gas detection portion, and a catalyst portion on a substrate, energizes the heater portion to heat the gas detection portion and the catalyst portion, and detects the detection target gas, the gas sensor configured by supporting a catalyst metal containing platinum as a main component on a support containing a transition metal oxide as a main component is adopted.

    Reactor
    8.
    发明公开
    Reactor 审中-公开

    公开(公告)号：US20230158463A1

    公开(公告)日：2023-05-25

    申请号：US17914561

    申请日：2021-03-23

    Applicant: Osaka Gas Co., Ltd.

    Inventor： Koichiro Ikeda ,  Sho Nakagami ,  Hinako Matsuo ,  Yukio Hiranaka ,  Satoshi Mori

    IPC: B01J8/06 ,  B01J8/00 ,  B01J8/02

    CPC classification number: B01J8/065 ,  B01J8/067 ,  B01J8/008 ,  B01J8/0214 ,  B01J8/0292 ,  B01J2208/00504 ,  B01J2208/00884

    Abstract: Provided is a reactor that is capable of suppressing deformation and damage of catalyst grains due to contraction of a reaction tube after thermal expansion thereof. A reactor includes: a reaction tube A aligned in an up-down direction and having, in a bottom section thereof, a catalyst supporter receiving packed catalyst grains and allowing a processed gas to flow therethrough; and a burning unit configured to heat an outer face of the reaction tube A. The reaction tube A has a cylindrical catalyst support face U that is in contact with the catalyst grains in the reaction tube A and that have, in the up-down direction, a plurality of engaging recesses each capable of receiving a portion of the catalyst grain in contact with the catalyst support face in such a manner that the portion of the catalyst grain is fitted into the engaging recess.

    Radiative cooling device
    10.
    发明授权
    Radiative cooling device 有权

    公开(公告)号：US11427500B2

    公开(公告)日：2022-08-30

    申请号：US17041059

    申请日：2019-07-17

    Applicant: Osaka Gas Co., Ltd.

    Inventor： Masahiro Suemitsu ,  Tadashi Saito

    IPC: B32B17/06 ,  C03C17/36 ,  F28F21/06

    Abstract: Provided is a radiative cooling device that provides coloration of the radiative surface while maximally avoiding reduction in its radiative cooling performance due to absorption of solar light. An infrared radiative layer for radiating infrared light from a radiative surface and a light reflective layer disposed on the side opposite to the presence side of the radiative surface of the infrared radiative layer are provided in a mutually stacked state. The light reflective layer is arranged such that a first metal layer made of silver or silver alloy and having a thickness equal to or greater than 10 nm and equal to or less than 100 nm, a transparent dielectric layer and a second metal layer reflecting light transmitted through the first metal layer and the transparent dielectric layer are stacked in this order on the side closer to the infrared radiative layer. The transparent dielectric layer has a thickness that causes a resonance wavelength of the light reflective layer to be a wavelength included in wavelengths equal to or greater than 400 nm and equal to or less than 800 nm.

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