US 12,313,579 B2
Odor sensor, odor measurement system, and method for producing odor sensor
Kenichi Hashizume, Tokyo (JP); Masahiro Kishida, Fukuoka (JP); Erika Terada, Tokyo (JP); and Kenichi Maeno, Tokyo (JP)
Assigned to AROMA BIT, INC., Tokyo (JP)
Appl. No. 17/789,482
Filed by AROMA BIT, Inc., Tokyo (JP)
PCT Filed Dec. 25, 2020, PCT No. PCT/JP2020/048945
§ 371(c)(1), (2) Date Jun. 27, 2022,
PCT Pub. No. WO2021/132639, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 2019-237839 (JP), filed on Dec. 27, 2019.
Prior Publication US 2023/0031936 A1, Feb. 2, 2023
Int. Cl. G01N 27/12 (2006.01); G01N 5/02 (2006.01); G01N 33/00 (2006.01)
CPC G01N 27/125 (2013.01) [G01N 5/02 (2013.01); G01N 33/0027 (2013.01); G01N 33/0031 (2013.01); G01N 33/0036 (2013.01); G01N 2291/0215 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An odor sensor comprising:
a plurality of sensor elements comprising:
a substance absorption film configured to adsorb an odor substance; and
a plurality of detection units configured to detect adsorption of the odor substance with respect to the substance absorption film,
wherein the substance absorption film is a porous particle film that contains particles containing a compound having silicon and oxygen as a skeleton, and a surface modifier for modifying surfaces of the particles,
wherein the plurality of sensor elements are arranged such that the plurality of detection units are adjacent to each other, and
wherein the substance absorption film covers the plurality of adjacent detection units.