公开(公告)号：US20140327321A1

公开(公告)日：2014-11-06

申请号：US14334310

申请日：2014-07-17

Applicant: Furukawa Electric Co., Ltd.

Inventor： Masahiro KUSUNOKI ,  Mitsuru MASUDA ,  Hiroyuki TAMAOKA ,  Yoichi ISO

IPC: H01F38/14

CPC classification number: H01F38/14 ,  H01F2038/146 ,  H02J7/025 ,  H02J17/00 ,  H02J50/05 ,  H02J50/50 ,  H04B5/0012 ,  H04B5/0037

Abstract: A wireless power transmission system that transmits alternating-current power includes a power-transmitting device including first and second electrodes spaced apart and having a total width of λ/2π or less, i.e., a near field range, and a first inductor between the first and second electrodes and a AC power-generating section, and a power-receiving device including third and fourth electrodes spaced apart and having a total width of λ/2π or less, and a second inductor between the third and fourth electrodes and a load. A coupler including the first and second electrodes and the first inductor forms one resonant circuit and a coupler including the third and fourth electrodes and the second inductor forms another resonant circuit. Resonance frequencies of the couplers are substantially equal. The first and second electrodes and the third and fourth electrodes are spaced apart by λ/2π or less.

Abstract translation: 发送交流电力的无线电力传输系统包括：电力传输装置，包括间隔开的第一和第二电极，总宽度为λ/ 2和pgr; 以及第一和第二电极之间的第一电感器和AC发电部分，以及包括间隔开并且总宽度为λ/ 2和pgr的第三和第四电极的电力接收装置 ; 或更小，以及在第三和第四电极之间的第二电感器和负载。 包括第一和第二电极和第一电感器的耦合器形成一个谐振电路，并且包括第三和第四电极和第二电感器的耦合器形成另一谐振电路。 耦合器的谐振频率基本相等。 第一和第二电极和第三和第四电极间隔开λ/ 2和pgr; 或更少。

公开(公告)号：US20240172969A1

公开(公告)日：2024-05-30

申请号：US18546372

申请日：2022-02-14

Applicant: ZEON CORPORATION ,  TOHOKU UNIVERSITY ,  FURUKAWA ELECTRIC CO., LTD.

Inventor： Koji KAWAJIRI ,  Rihito KURODA ,  Yasuyuki FUJIHARA ,  Shota NAKAYAMA ,  Hideaki HASEGAWA ,  Takayori ITO ,  Hiroyuki TAMAOKA

IPC: A61B5/145 ,  A61B5/1455

CPC classification number: A61B5/14532 ,  A61B5/1455 ,  A61B2562/0238

Abstract: A biological information measuring device includes a light source that irradiates light, a sensor having a plurality of pixels arranged in an array in a two-dimensional plane and a saturation charge number of 1,000,000 or more. The sensor receives irradiated light transmitted, reflected, or scattered from the light source in a living body and outputs information according to the light intensity of the received light. A specific location selection unit selects a measurement target location of the measurement target for the biological information and a reference location different from the measurement target location, based on the information obtained by the image sensor. A biological information acquisition unit acquires biological information from the information obtained by the sensor at the measurement target location, using the information obtained by the sensor at the reference location as a reference.

公开(公告)号：US20230393117A1

公开(公告)日：2023-12-07

申请号：US18450628

申请日：2023-08-16

Applicant: FURUKAWA ELECTRIC CO., LTD. ,  TOHOKU UNIVERSITY

Inventor： Hideaki HASEGAWA ,  Takayori ITO ,  Hiroyuki TAMAOKA ,  Koji KAWAJIRI ,  Rihito KURODA

IPC: G01N33/49 ,  B01L3/00 ,  G01N15/14 ,  G01N15/06

CPC classification number: G01N33/49 ,  B01L3/502715 ,  G01N15/1429 ,  G01N15/1463 ,  G01N15/06 ,  B01L2300/0654 ,  B01L2300/168 ,  G01N2015/1493 ,  G01N2015/0065

Abstract: A biological information measurement device includes: a scattering rate calculating unit configured to calculate a scattering rate of light at an interface between a medium present in a biological object or in a specimen and a particle included in the medium based on received-light intensity of light irradiated onto the biological object or onto the specimen and received via the biological object or via the specimen; and a concentration index calculating unit configured to calculate, based on a correlation between the scattering rate of the light at the interface and a concentration index corresponding to concentration of a target substance that is different from the particle included in the medium, the concentration index corresponding to the scattering rate of the light calculated by the scattering rate calculating unit.

公开(公告)号：US20210396617A1

公开(公告)日：2021-12-23

申请号：US17446876

申请日：2021-09-03

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hideaki HASEGAWA ,  Hiroyuki TAMAOKA ,  Takeshi YAGI ,  Shinichi ARAI

IPC: G01L11/02 ,  G02B6/255 ,  G02B6/02

Abstract: A pressure sensor includes: a light source that outputs signal light; a sensor optical fiber where the signal light is input and the signal light is propagated with a loss of 0.3 dB/m or more; and an optical receiver that receives the signal light propagated through the sensor optical fiber. Further, pressure applied to the sensor optical fiber is detected on a basis of intensity of the signal light received by the optical receiver.

公开(公告)号：US20240233982A1

公开(公告)日：2024-07-11

申请号：US18556118

申请日：2022-04-20

Applicant: FURUKAWA ELECTRIC CO., LTD. ,  JAPAN AEROSPACE EXPLORATION AGENCY

Inventor： Tomoya NOMURA ,  Yoichi ISO ,  Hiroyuki TAMAOKA ,  Shinatora CHO ,  Satoshi HOSODA

IPC: H01B7/29 ,  H01B3/12 ,  H01B7/02 ,  H01F5/06

CPC classification number: H01B7/292 ,  H01B3/12 ,  H01B7/0266 ,  H01F5/06

Abstract: The insulation covered conductive wire includes a conductive wire, a non-adherent, laterally wound insulation member and a non-adherent braided insulation member. The non-adherent, laterally wound insulation member covers an outer circumference of the conductive wire without adhering thereto and is formed by laterally winding a plurality of first ceramic fibers constituted from a plurality of first ceramic strands in an extending direction of the conductive wire. The first ceramic strands are not in contact with each other and do not adhere to each other. The non-adherent braided insulation member covers an outer circumference of the non-adherent, laterally wound insulation member without adhering thereto and is formed by braiding a plurality of second ceramic fibers constituted from a plurality of second ceramic strands. The second ceramic fibers are not in contact with each other and do not adhere to each other.

公开(公告)号：US20230204441A1

公开(公告)日：2023-06-29

申请号：US18177904

申请日：2023-03-03

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Takashi FUJIHATA ,  Hideaki HASEGAWA ,  Takayori ITO ,  Hiroyuki TAMAOKA

IPC: G01L1/24

CPC classification number: G01L1/243

Abstract: An object detection device includes: an optical fiber at least partially including a sensor optical fiber configured to transmit light with a loss of 0.3 dB/m or more; and a light receiving unit configured to receive, from the optical fiber, the light received by the sensor optical fiber, wherein the object detection device is configured to detect an object based on an intensity of the light received by the light receiving unit.

公开(公告)号：US20230200658A1

公开(公告)日：2023-06-29

申请号：US18178666

申请日：2023-03-06

Applicant: FURUKAWA ELECTRIC CO., LTD. ,  ZEON CORPORATION

Inventor： Hideaki HASEGAWA ,  Hiroyuki TAMAOKA ,  Takashi FUJIHATA

IPC: A61B5/00 ,  A61B5/0215

CPC classification number: A61B5/0084 ,  A61B5/0215 ,  A61B2562/0285

Abstract: An in vivo pressure measurement device includes: a light source configured to output test light; an optical fiber, to which the test light is input, at least partially including a sensor optical fiber configured to transmit the test light with a loss of 0.3 dB/m or more; and a light receiving unit configured to receive the test light transmitted through the sensor optical fiber. The in vivo pressure measurement device is configured to measure pressure in a living body acting on the sensor optical fiber based on intensity of the test light received at the light receiving unit.