公开(公告)号：US20220163474A1

公开(公告)日：2022-05-26

申请号：US17432973

申请日：2020-03-17

Applicant: Figaro Engineering Inc. ,  University of Fukui

Inventor： Masakazu SAI ,  Kenichi YOSHIOKA ,  Kuniyuki IZAWA ,  Toshikazu SAKAGUCHI

IPC: G01N27/12 ,  B01D53/22 ,  B01D71/44 ,  B01D69/10 ,  B01D69/02 ,  G01N33/00

Abstract: A gas sensor comprises a gas separation membrane comprising substituted polyacetylene where a substituent group is combined to a double-bonded carbon atom in the backbone chain of the substituted polyacetylene and a sensing element configured to detect gas permeated through the gas separation membrane.

公开(公告)号：US20210310906A1

公开(公告)日：2021-10-07

申请号：US17264868

申请日：2020-05-01

Applicant: Figaro Engineering Inc. ,  New Cosmos Electric Co., Ltd. ,  University Public Corporation Osaka

Inventor： Masato TAKEUCHI ,  Junpei FURUNO ,  Kenta FUKUI ,  Kenichi YOSHIOKA ,  Tatsuya TANIHIRA ,  Masakazu SAI ,  Takafumi TANIGUCHI ,  Hirokazu MITSUHASHI

IPC: G01N1/22 ,  G01N27/16 ,  B01D53/04 ,  B01J20/28 ,  B01J20/22

Abstract: Siloxane compounds are removed from the atmospheres by silica supporting an organic sulfonic acid compound. The silica with the organic sulfonic acid compound has a specific surface area down to 500 m2/g and up to 750 m2/g and a pore volume down to 0.8 m3/g and up to 1.2 m3/g, both measured by nitrogen gas adsorption method and has a pore diameter down to 4 nm and up to 8 nm, at the peak of differential pore volume measured by nitrogen gas adsorption method. The durability of gas sensing element against siloxanes is improved.

公开(公告)号：US20210262967A1

公开(公告)日：2021-08-26

申请号：US16972754

申请日：2019-02-22

Applicant: OMRON Corporation ,  Figaro Engineering Inc.

Inventor： Yoshitaka TATARA ,  Masahito HONDA ,  Hiroaki NAGAI ,  Yoshiki ASHIHARA ,  Kuniyuki IZAWA ,  Masakazu SAI ,  Kenichi YOSHIOKA

IPC: G01N27/12 ,  G01N33/00 ,  H05B3/20

Abstract: A micro-hotplate comprises a Si substrate having a cavity and a support layer over the cavity; at least an electrode; and a heater, both provided on the support layer. The electrode surrounds the heater and the heater is disposed inside the electrode. The power efficiency of the micro-hotplate is improved.