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：US20230204842A1

公开(公告)日：2023-06-29

申请号：US18060640

申请日：2022-12-01

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Keisuke TAKE ,  Hideaki HASEGAWA ,  Shun-ichi MATSUSHITA

IPC: F21V8/00

CPC classification number: G02B6/0008 ,  A61N5/067

Abstract: Provided is a light diffusion device capable of irradiating laser light onto a plurality of locations in a human body in a state in which a distal end portion of an optical transmission cable is placed in the human body. The light diffusion device includes an optical transmission cable including a plurality of cores, and a light refracting portion configured to refract the light emitted from each of the plurality of cores so that irradiation directions thereof are different from each other. With such a configuration, it is possible to irradiate the laser light in a plurality of directions when the distal end of the optical transmission cable is placed in the human body. Therefore, it is possible to change the location where the laser light is irradiated without extracting or re-inserting the optical transmission cable from or into the human body, thereby shortening the time required for photoimmunotherapy.

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：US20150103853A1

公开(公告)日：2015-04-16

申请号：US14552097

申请日：2014-11-24

Applicant: Furukawa Electric Co., Ltd.

Inventor： Tatsuro KUROBE ,  Tatsuya KIMOTO ,  Hideaki HASEGAWA

IPC: H01S5/024

CPC classification number: H01S5/024 ,  H01S3/1317 ,  H01S3/137 ,  H01S5/0085 ,  H01S5/02284 ,  H01S5/02407 ,  H01S5/02415 ,  H01S5/0612 ,  H01S5/06258 ,  H01S5/06837 ,  H01S5/0687 ,  H01S5/1014 ,  H01S5/12 ,  H01S5/2206 ,  H01S5/2222 ,  H01S5/227 ,  H01S5/4012 ,  H01S5/4031 ,  H01S5/50

Abstract: A semiconductor laser module includes: a semiconductor laser element having at least one semiconductor laser; a first support member on which the semiconductor laser element is mounted; a first temperature-adjusting element adjusting a temperature of the first support member; a semiconductor optical element having a semiconductor optical amplifier amplifying a laser light outputted from the semiconductor laser element; and a second support member on which the semiconductor optical element is mounted.

Abstract translation: 半导体激光器模块包括：具有至少一个半导体激光器的半导体激光元件; 安装半导体激光元件的第一支撑构件; 调节第一支撑构件的温度的第一温度调节元件; 半导体光学元件，具有放大从半导体激光元件输出的激光的半导体光放大器; 以及安装半导体光学元件的第二支撑构件。