公开(公告)号：US20240319086A1

公开(公告)日：2024-09-26

申请号：US18602024

申请日：2024-03-12

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Yuta TAKAGI ,  Kenta FURUTA

IPC: G01N21/3504

CPC classification number: G01N21/3504

Abstract: An optical member (30) includes a reflective structure (32) including a metallic thin film or an optical thin film, a metal body electrically disconnected from the reflective structure (32), and a support (31) integrally sealing and supporting the reflective structure (32) and the metal body. The reflective structure (32) is exposed from a first surface of the support (31). The metal body is exposed from the support (31) on a second surface opposite the first surface from which the reflective structure (32) is exposed, and on at least one side different from the first surface and the second surface.

公开(公告)号：US20230349876A1

公开(公告)日：2023-11-02

申请号：US18186191

申请日：2023-03-20

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Masanori MASUDA ,  Yuta TAKAGI

IPC: G01N21/3504 ,  G01N33/00

CPC classification number: G01N33/0062 ,  G01N21/3504 ,  G01N2021/3181

Abstract: Provided are a gas concentration measurement system, gas concentration computation section, and gas concentration measurement method enabling high-accuracy gas concentration measurement. The gas concentration measurement system includes: a gas concentration measurement section (10a) including a light-emitting element (11) and a first sensor element; a light-emitting element drive section that drives the light-emitting element; a signal acquisition section (21) that acquires at least an output signal of the first sensor element, a first drive signal that is a first voltage value or first current value of the light-emitting element, and a second drive signal that is a second voltage value or second current value of the light-emitting element; and a computation section (22) that computes gas concentration based on signals acquired by the signal acquisition section. The computation section, based on the first and second drive signals, corrects the output signal of the first sensor element and computes the gas concentration.

公开(公告)号：US20150362365A1

公开(公告)日：2015-12-17

申请号：US14763890

申请日：2014-02-06

Applicant: ASAHI KASEI MICRODEVICES CORPORATION

Inventor： Toshiaki FUKUNAKA ,  Edson Gomes CAMARGO ,  Sosuke NISHIDA ,  Yuta TAKAGI

IPC: G01J3/12 ,  G02B3/00 ,  G01J3/28

CPC classification number: G01J3/12 ,  G01J1/0403 ,  G01J1/0407 ,  G01J1/0488 ,  G01J3/28 ,  G01J5/0205 ,  G01J5/04 ,  G01J5/045 ,  G01J5/046 ,  G01J5/0803 ,  G01J5/0862 ,  G01J2003/1213 ,  G01J2003/1282 ,  G02B3/0012 ,  H01L31/02325 ,  H01L31/09 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01L2924/00014

Abstract: An infrared-sensor filter member includes an optical filter disposed in an opening portion of a second member and a first member. The infrared-sensor filter member includes a recess portion formed from a light-incident surface of the optical filter and the first member. At least a part of a bottom surface of the recess portion is formed by the light-incident surface and side walls of the recess portion, which are formed by the first member.

Abstract translation: 红外线传感器过滤器构件包括设置在第二构件的开口部分中的滤光器和第一构件。 红外线传感器滤波器构件包括由滤光器的光入射表面和第一构件形成的凹部。 所述凹部的底面的至少一部分由所述凹部的光入射面和所述第一部件形成的侧壁形成。

公开(公告)号：US20240281840A1

公开(公告)日：2024-08-22

申请号：US18440969

申请日：2024-02-14

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Yuta TAKAGI ,  Soichi MEJIMA ,  Yuta MORIOKA

IPC: G06Q30/0208 ,  G01D18/00

CPC classification number: G06Q30/0208 ,  G01D18/00

Abstract: There is provided a sensor system including a reward transmission unit which transmits a reward for calibration by a calibration unit. The calibration unit calibrates an environmental measurement value of a measurement target that is measured by a second environmental sensor, based on first calibration information for calibrating an environmental measurement value of a measurement target that is measured by a first environmental sensor. The sensor system may further include: a first sensor device having a calibration information transmission unit which transmits the first calibration information; and a second sensor device having a receiving unit which receives the first calibration information that is transmitted by the calibration information transmission unit, and the calibration unit.

公开(公告)号：US20250035611A1

公开(公告)日：2025-01-30

申请号：US18780545

申请日：2024-07-23

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Yuta TAKAGI ,  Naoya UGOMORI ,  Tetsuro OGATA ,  Seiryu SASAKI ,  Takaaki FURUYA ,  Shota ISSHIKI

IPC: G01N33/497 ,  A61M16/00

Abstract: Provided is a breath sensor which senses a breath generated by breathing, including: a light emitting unit which emits light toward a path through which the breath passes; a first light receiving unit which receives at least a part of the light emitted from the light emitting unit and outputs a first light reception signal according to a light reception result; and an operating unit which performs an operation on the first light reception signal, wherein the operating unit calculates a baseline of a waveform of based on a frequency component of the first light reception signal lower than a first cut-off frequency that is set, and senses the breath based on a signal obtained by removing the baseline from the first light reception signal.

公开(公告)号：US20230137065A1

公开(公告)日：2023-05-04

申请号：US17974549

申请日：2022-10-27

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Yuta TAKAGI ,  Soichi MEJIMA

IPC: G01N33/00

Abstract: There is provided a gas sensor system including a first gas sensor apparatus including a transmission unit configured to transmit first calibration information and reliability information of the first gas sensor apparatus, and a second gas sensor apparatus including a reception unit configured to receive the first calibration information and the reliability information and a calibration unit configured to calibrate, based on the first calibration information, a gas concentration of a second gas sensor, in which when the calibration reliability of the first gas sensor apparatus is higher than a reference calibration reliability, the calibration unit is configured to calibrate, based on the first calibration information, the gas concentration of the second gas sensor.

公开(公告)号：US20190124738A1

公开(公告)日：2019-04-25

申请号：US16227316

申请日：2018-12-20

Applicant: ASAHI KASEI MICRODEVICES CORPORATION

Inventor： Yuta TAKAGI ,  Yuji GODA

IPC: H05B33/08 ,  H01L31/02 ,  H01L31/12

Abstract: A light-emitting/receiving device including: a diode-type light-emitting element formed on a semiconductor substrate; a diode-type light-receiving element formed on the semiconductor substrate; a light source driving unit configured to supply a first common voltage to an anode or a cathode of the light-emitting element to drive the light-emitting element; and a light signal processing unit configured to perform current/voltage conversion on an output current outputted from the light-receiving element, by referring to a second common voltage.

公开(公告)号：US20250035545A1

公开(公告)日：2025-01-30

申请号：US18780537

申请日：2024-07-23

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Yuta TAKAGI ,  Naoya UGOMORI

IPC: G01N21/3504 ,  G01N33/497

Abstract: Provided is a gas sensor that senses gas to be sensed, comprising a light emitting unit that radiates light; a first light receiving unit that receive at least a part of the light that passed through the gas to be sensed, and outputs a first light reception signal according to a light reception result; a second light receiving unit that receives at least a part of the light that did not pass through the gas to be sensed, and outputs a second light reception signal according to a light reception result; and an operating unit that senses that condensation has occurred in a light path from the light emitting unit to the first light receiving unit based on the first light reception signal and the second light reception signal.

公开(公告)号：US20240328927A1

公开(公告)日：2024-10-03

申请号：US18611692

申请日：2024-03-21

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Takaaki FURUYA ,  Yoshihiko KOIZUMI ,  Yuta TAKAGI ,  Naoya UGOMORI ,  Naoya IWATA

IPC: G01N21/17

CPC classification number: G01N21/1702 ,  G01N2021/1704

Abstract: A gas sensor (1) includes a gas measuring unit (40) including a light source (11) provided on a substrate, a detector (41) provided on the substrate and configured to detect a signal based on light emitted from the light source, and a gas detection space (42) provided with a hole for gas to pass through. The natural frequency of a resonance mode of the gas measuring unit is f, and the driving frequency of the light source is from 0.9f or more to 1.1f or less. A distribution of sound pressure is generated in the gas detection space by driving of the light source, and the light source and the detector are each arranged in a region that is 70% or more of the maximum absolute value of the sound pressure.

公开(公告)号：US20230324290A1

公开(公告)日：2023-10-12

申请号：US18186192

申请日：2023-03-20

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Yuta TAKAGI ,  Naoya UGOMORI

IPC: G01N1/24 ,  G01N33/497 ,  G01N21/3504 ,  G01N1/44

CPC classification number: G01N21/3504 ,  G01N1/24 ,  G01N1/44 ,  G01N33/4972 ,  G01N2001/2244

Abstract: Provided are a gas sensor system, a gas sensor control device, and a control method that enable high-accuracy measurement without causing a user to wait. The gas sensor system (1) includes: a gas sensor (10) that performs concentration measurement of a measurement target gas in air; a heater (17) that heats the gas sensor; an air intake port (11) and an air discharge port (12) that are connected to the gas sensor; and a control device (20) that performs heating control of operating the heater so as to heat the gas sensor. The control device acquires temperature information for the gas sensor and temperature information for a space from which the air intake port takes in air and performs the heating control based on the temperature information for the gas sensor and the temperature information for the space from which the air intake port takes in air.