Fiber engineering

Measurement engineering, Measurement and instrument

Measurement of Pulsation Strain at the Fingertip Using a Plastic FBG Sensor
Shouhei Koyama, Yuki Haseda, Hiroaki Ishizawa, Futa Okazaki, Julien Bonefacino, Hwa-Yaw Tam
IEEE Sensors Journal, 21(19), 21537-21545, 2021

Photocatalytic self-cleaning coatings to remove oleic acid, an organic pollutant, from cotton fabrics
Chunhong Zhu, Ayuna Mochizuki, Jian Shi, Minori Ishimori, Shouhei Koyama, Hiroaki Ishizawa, Jun Yan, Hideaki Morikawa
Cellulose, 28(12), 8139-8152, 2021

Classification of Pulse Wave Signal Measured by FBG Sensor for Vascular Age and Arteriosclerosis Estimation
Kyoko Katayama, Shun Chino, Shintaro Kurasawa, Shouhei Koyama, Hiroaki Ishizawa, Keisaku Fujimoto
IEEE Sensors Journal, 20(5), 2485-2491, 2020

Verification of Blood Pressure Monitoring System Using Optical Fiber Sensor -Tracing Sudden Blood Pressure Changes-
Kyoko Katayama, Shun Chino, Shouhei Koyama, Hiroaki Ishizawa, Keisaku Fujimoto
JOURNAL OF FIBER SCIENCE AND TECHNOLOGY, 76(2), 79-87, 2020

Development of Smart Textiles for Self-Monitoring Blood Glucose by Using Optical Fiber Sensor
Shintaro Kurasawa, Hiroaki Ishizawa, Keisaku Fujimoto, Shun Chino, Shouhei Koyama
JOURNAL OF FIBER SCIENCE AND TECHNOLOGY, 76(3), 104-112, 2020

THz spectra of drawn and undrawn fibers measured on fiber shape samples
Shouhei Koyama, Toru Kurabayashi, Riko Tamura, Itsuki Okada
JOURNAL OF THE TEXTILE INSTITUTE, 112(10), 1538-1544, 2020

Verification of the Propagation Range of Respiratory Strain Using Signal Waveform Measured by FBG Sensors
Shouhei Koyama, Atsushi Fujimoto, Yuma Yasuda, Yuuki Satou
MDPI-Sensors, 20(24), 7076, 2020

Wireless, Portable Fiber Bragg Grating Interrogation System Employing Optical Edge Filter
Ken Ogawa, Shouhei Koyama, Yuuki Haseda, Keiichi Fujita, Hiroaki Ishizawa, Keisaku Fujimoto
MDPI-Sensors, 19(14), 3222, 2019

Influence on Measurement Signal by Pressure and Viscosity Changes of Fluid and Installation Condition of FBG Sensor Using Blood Flow Simulation Model
Shouhei Koyama, Toshiyuki Hayase, Suguru Miyauchi, Atsushi Shirai, Shun Chino, Yuuki Haseda, Hiroaki Ishizawa
IEEE Sensors Journal, 19(24), 11948-11954, 2019

Measurement of Pulse Wave Signals and Blood Pressure by a Plastic Optical Fiber FBG Sensor
Yuki Haseda, Julien Bonefacino, Hwa-Yaw Tam, Shun Chino, Shouhei Koyama and Hiroaki Ishizawa
MDPI-Sensors, 19(23), 5088, 2019

Influence of Individual Differences on the Calculation Method for FBG-Type Blood Pressure Sensors.
Shouhei Koyama, Hiroaki Ishizawa, Keisaku Fujimoto, Shun Chino, Yuka Kobayashi
MDPI-Sensors, 17(1), 48-59, 2017

Influence on calculated blood pressure of measurement posture for the development of wearable vital sign sensors
Shouhei Koyama, Hiroaki Ishizawa, Akio Sakaguchi, Satoshi Hosoya, Takashi Kawamura
Hindawi-Journal of Sensors, 2017, 8916596, 2017

Vital sign measurement using covered FBG sensor embedded into knitted fabric for smart textile
Shouhei Koyama, Akio Sakaguchi, Hiroaki Ishizawa, Kurumi Yasue, Hiroki Oshiro, Hirokazu Kimura
JOURNAL OF FIBER SCIENCE AND TECHNOLOGY, 73(11), 300-308, 2017

Stress Loading Detection Method Using the FBG Sensor for Smart Textile
Shouhei Koyama, Hiroaki Ishizawa, Satoshi Hosoya, Takashi Kawamura, Shun Chino
JOURNAL OF FIBER SCIENCE AND TECHNOLOGY, 73(11), 276-283, 2017

Verification of non-invasive blood glucose measurement method based on pulse wave signal detected by FBG sensor system
Shintaro Kurasawa, Shouhei Koyama, Hiroaki Ishizawa, Keisaku Fujimoto, Shun Chino
MDPI-Sensors, 17(1), 2702, 2017

Fiber Optic Sensing -Priciple, Measurement and Applications- 4
Shouhei Koyama, Hiroaki Ishizawa, Vital Sign Measurement Using FBG Sensor for New Wearable Sensor Development
1-16 2019
ISBN:978-1-83962-181-9

Infrared Spectroscopy -Life and Biomedical Sciences-
Shouhei Koyama, Hiroaki Ishizawa, Yuki Miyauchi, Tomomi Dozono, Introduction of Non-Invasive Measurement Method by Infrared Application
InTech, 79-102 2012
ISBN:978-953-51-0538-1

Influence of wrist dorsiflexion angle on the measurement signal of radial artery strain with FBG sensor
Shouhei Koyama, Tatsuya Yoda
CLEO-PR 2022/ISOM'22/ODF'22, 04 Aug. 2022

Verification of radial artery strain detection area using by FBG sensor
Shouhei Koyama, Tatsuya Yoda
ATC-16, 29 Jul. 2022

Comparison of specifications and measurement signals of two type sensors that measure heartbeat information at the fingertip
Shouhei Koyama, Yuki Haseda, Shota Kitagawa, Futa Okazaki, Yuuki Satou
The XXIII World Congress of the International Measurement Confederation (IMEKO2021), 2021

Verification of FBG sensor installation range for pulsation strain signal measurement at the wrist
Yuki Haseda, Shouhei Koyama
SICE Annual Conference 2021, 2021

Measurement Signal Analysis at Each Pulsation Point of Living Body by FBG Sensor
Shouhei Koyama, Souta Asayama, Yuya Ohno, Hiroaki Ishizawa
International Instrumentation and Measurement Technology Conference, I2MTC 2020, 2020

Development project of FBG sensor system for healthcare clothing -No.1: FBG interrogator for wearable system-
Yuki Haseda, Ken Ogawa, Keiichi Fujita, Shouhei Koyama, Hiroaki Ishizawa
Comfort and Smart Textile International Symposium 2019, 2019

Development project of FBG sensor system for healthcare clothing -No.2: Measurement signal by sensor installation point-
Yuya Ohno, Shouhei Koyama, Hiroaki Ishizawa
Comfort and Smart Textile International Symposium 2019, 2019

Development project of FBG sensor system for healthcare clothing -No.3: Blood pressure detection-
Atsushi Fujimoto, Shun Chino, Keisaku Fujimoto, Shouhei Koyama, Hiroaki Ishizawa
Comfort and Smart Textile International Symposium 2019, 2019

Development project of FBG sensor system for healthcare clothing -No.4: Stress loading detection-
Seiya Fujiwara, Masayoshi Kamijo, Shouhei Koyama, Hiroaki Ishizawa
Comfort and Smart Textile International Symposium 2019, 2019

Development project of FBG sensor system for healthcare clothing -No.5: Blood glucose sensing-
Shintaro Kurasawa, Shouhei Koyama, Hiroaki Ishizawa, Keisaku Fujimoto
Comfort and Smart Textile International Symposium 2019, 2019

Development project of FBG sensor system for healthcare clothing -No.6 : FBG sensor embedded textile product-
Akio Sakaguchi, Misaki Sakai, Shouhei Koyama, Hiroaki Ishizawa
Comfort and Smart Textile International Symposium 2019, 2019

Development project of FBG sensor system for healthcare clothing -No.7: Multiple vital sign sensor for healthcare clothing-
Shouhei Koyama, Akio Sakaguchi, Keisaku Fujimoto, Hiroaki Ishizawa
Comfort and Smart Textile International Symposium 2019, 2019

Verification of fiber diameter and pretreatment method for high signal-to-noise ratio THz spectrum measurement
Shouhei Koyama, Riko Tamura, Toru Kurabayashi
International Conference on Intelligent Textiles and Mass Customisation ITMC-2019, 2019

Fiber sensors as the cutting edge materials for smart textile -Miniaturization of interrogator and elucidation of blood pressure measurement principle-
Shouhei Koyama, Hiroaki Ishizawa
International Conference on Intelligent Textiles and Mass Customisation ITMC-2019, 2019

Study on Classfication of Habitat for Cashmere Fiber by Infrared Spectroscopy
Yuji Ikeda, Shouhei Koyama, Hiroaki Ishizawa
International Conference on Intelligent Textiles and Mass Customisation ITMC-2019, 2019

Improvement of blood prediction using artificial neural network
Kyoko Katayama, Shouhei Koyama, Hiroaki Ishizawa, Keisaku Fujimoto
2018 IEEE International Symposium on Medical Measurement & Applications, 2018

Simultaneous measurement of heart sound, pulse wave and respiration with single fiber Bragg grating sensor
Ken Ogawa, Hiroaki Ishizawa, Shouhei Koyama, Seiya Fujiwara, Keisaku Fujimoto
2018 IEEE International Symposium on Medical Measurement & Applications, 2018

Influence of installing method on pulse wave signal in blood pressure prediction by FBG sensor
Shun Chino, Hiroaki Ishizawa, Shouhei Koyama, Keisaku Fujimoto
2018 IEEE International Symposium on Medical Measurement & Applications, 2018

Study on Vital Sign Measurement Using Fiber Bragg Grating Sensor for Wearable System
Hiroki Oshiro, Yuka Kobayashi, Shun Chino, Akio Sakaguchi,Shouhei Koyama, Hiroaki Ishizawa
Textile Bioengineering and Informatics Society, TBIS 2018, 2018

Evaluation of Molecular Structure in Each Processing Step of Cashmere Fibers Based on IR Spectroscopy
Shouhei Koyama, Sena Gouzu, Keisuke Tsukamoto, Myadagmaa Rentsenlkhundev, Hiroaki Ishizawa
SICE Annual Conference 2018, 2018

Fundamental Research of Pulse Wave and Blood Pressure Measurement Using Passive Edged Filter Integrated in Fiber Bragg Grating Measurement System
Yuki Haseda, Hiroaki Ishizawa, Shouhei Koyama, Ken Ogawa, Keiichi Fujita, Shun Chino, Keisaku Fujimoto
SICE Annual Conference 2018, 2018

Application to Prediction of Fiber Mixture Ratio by Convolution Neural Network
Takuya Wada, Shouhei Koyama, Hiroaki Ishizawa
SICE Annual Conference 2018, 2018

Elucidation of Mechanism of Fiber Bragg Grating Vital Sensing by Ultrasonic-Measurement-Integrated Simulation: Flow Analysis in Ultrasound Flow Phantom
Suguru Miyauchi, Toshiyuki Hayase, Kosuke Inoue, Toshiyuki Ogasawara, Tatsuya Tsuboi, Atsushi Shirai, Shun Chino, Shouhei Koyama, Hiroaki Ishizawa
15th International Conference on Flow Dynamics, 2018

Research for Wearable Multiple Vital Sign Sensor using Fiber Bragg Grating-Verification of several pulsate points in human body surface-
Shun Chino, Hiroaki Ishizawa, Satoshi Hosoya, Shouhei Koyama, Keisaku Fujimoto
International Instrumentation and Measurement Technology Conference, I2MTC 2017, 2017

Application of covered FBG sensor for wearable system
Yuka Kobayashi, Hiroki Oshiro, Shun Chino, Akio Sakaguchi, Shouhei Koyama, Hiroaki Ishizawa
The 14th Asian Textile Conference, 2017

THz spectroscopy measurement of Nylon yarn
Keisuke Tsukamoto, Sena Gozu, Hiroaki Ishizawa, Shouhei Koyama
The 14th Asian Textile Conference, 2017

Study of chemical analysis of the Cashmere fiber by Infrared spectroscopy
Sena Gozu, Keisuke Tsukamoto, Rentsenlkhundev Myadagmaa, Hiroaki Ishizawa, Shouhei Koyama
The 14th Asian Textile Conference, 2017

Cleanliness evaluation method by spectroscopic analysis for medical instruments which are rapidly measured and are not rewashed
Kei Iishiba, Kazumasa Ohi, Nobutaka Tsurushima, Shouhei Koyama, Hiroaki Ishizawa
SICE Annual Conference 2017, 2017

Fiber sensors as the cutting edge materials for smart textiles
Shouhei Koyama, Hiroaki Ishizawa
International Conference on Intelligent Textiles and Mass Customisation ITMC-2017, 2017

Non-invasive blood pressure measurement using FBG sensor –Classification of pulse wave
Kyoko Katayama, Shun Chino, Yuka Kobayashi, Shouhei Koyama, Hiroaki Ishizawa, Keisaku Fujimoto
International Conference on Intelligent Textiles and Mass Customisation ITMC-2017, 2017

Fundamental study for blood glucose measurement using fiber Bragg grating
Shintaro Kurasawa, Hiroaki Ishizawa, Shouhei Koyama, Keisaku Fujimoto, Shun Chino
International Conference on Intelligent Textiles and Mass Customisation ITMC-2017, 2017

Textile Classfication System by Using Infrared Spectroscopy
Shu Ogura, Sena Goudu, Keisuke Tsukamoto, Kyouko Katayama, Shouhei Koyama, Hiroaki Ishizawa
SICE Annual Conference 2016, 2016

Cleanliness Measurement of Medical Instruments by Near Infrared Spectroscopy
Masahiro Komatsu, Kazumasa Ohi, Nobutaka Tsurushima, Kei Iishiba, Shouhei Koyama, Hiroaki Ishizawa
SICE Annual Conference 2016, 2016

Trial Operation of Non-Invasive Blood Glucose Measurement System with Near-Infrared Spectroscopy
Shintaro Kurasawa, Hiroaki Ishizawa, Shouhei Koyama, Kyouko Katayama
SICE Annual Conference 2016, 2016

Non-Invasive Blood Pressure Measurement -The Study of Measuring Points-
Shun Chino, Hiroaki Isizawa, Satoshi Hosoya, Shouhei Koyama, Keisaku Fujimoto, Shintaro Kurasawa, Yuka Kobayashi
SICE Annual Conference 2016, 2016

Quantitative analysis of textile products using infrared spectroscopy and moving window partial least squares regression analysis
Shogo Tomii, Hiroaki Ishizawa, Shouhei Koyama, Mika Morishima
International Symposium on Fiber Science and Technology (ISF2014) in Tokyo, 2014

Basis study on systolic blood pressure measurement by using FBG sensors
Tsubasa Takagi, Hiroaki Ishizawa, Masaaki Niimura, Shouhei Koyama, Yuki Miyauchi, Yui Katsuragawa
International Symposium on Fiber Science and Technology (ISF2014) in Tokyo, 2014

Basic experiment of blood-pressure measurement which uses FBG sensors
Yuki Miyauchi, Shouhei Koyama, Hiroaki Ishizawa
IEEE International Instrumentation and Measurement Technology Conference proceeding (I2MTC2013), 2013

Quantitative Analysis of Textile on Moving Window PLSR by Near-Infrared Absorption Spectrum
Shota Nagata, Hiroaki Ishizawa, Shouhei Koyama
SICE Annual Conference 2013, 2013

The Pulse Rate Measuring System which Use FBG Sensors
Yuki Miyauchi, Hiroaki Ishizawa, Shouhei Koyama
Light Sources 2012, 2012

Verification of the Systolic Blood-pressure Measurement Principle by FBG Sensors
Yuki Miyauchi, Hiroaki Ishizawa, Shouhei Koyama, Shingo Sato
SICE Annual Conference 2012, 2012

Non-invasive Self Monitoring of Blood Glucose System Using Near-infrared Spectroscopy
Hiroki Yoshinari, Hiroaki Ishizawa, Masaya Fukuda, Shota Tokutake, Shouhei Koyama, Yuki Miyauchi
SICE Annual Conference 2012, 2012

Nondestructive Quantitative Analysis of Fiber Mixtures by Infrared Spectroscopy
Yuki Takei, Hiroaki Ishizawa, Shota Nagata, Takashi Miki, Shouhei Koyama
SICE Annual Conference 2012, 2012

Non-destructive and Quickly Analysis of Textile Products Based on IR Spectroscopy
Shouhei Koyama, Tomomi Dozono, Yuki Miyauchi, Takashi Miki, Hiroaki Ishizawa
ICONTEX 2011, 2011

Measurement System of Remaining Dirt on Inner Surface of a Narrow Tubule Based on Infrared Spectroscopy
Shouhei Koyama, Yuki Miyauchi, Hiroaki Ishizawa
SICE Annual Conference 2011, 2011

Application to Vital Signs by Fiber Bragg Grating Sensing
Masaki Kawamura, Hiroaki Ishizawa, Shingo Sato, Shouhei Koyama
SICE Annual Conference 2011, 2011

Drifting Pesticide Detction Based on Attenuated Total Reflection of Infrared Spectroscopy
Takuro Horiguchi, Hiroaki Ishizawa, Shouhei Koyama, Hiroki Yoshinari, Shota Tokutake, Hisashi Yamada
SICE Annual Conference 2011, 2011

Non-invasive Measurement of Blood Glucose of Diabetic Based on IR Spectroscopy
Shouhei Koyama, Yuki Miyauchi, Takuro Horiguchi, Hiroaki Ishizawa
SICE Annual Conference 2010, 2010

Laser Speckle Pattern Measurement for Plant State Monitoring
Masaki Kawamura, Hiroaki Ishizawa, Takuro Horiguchi, Shouhei Koyama
SICE Annual Conference 2010, 2010

Prompt Quantitative Analysis of Fiber Mixtures Based on Infrared Absorption Features
Shota Tokutake, Tomomi Dozono, Hiroaki Ishizawa, Shouhei Koyama, Takashi Miki
SICE Annual Conference 2010, 2010

Measurement of Remaining Dirt in Medical Instrument Based on IR Spectroscopy and Cone-Shaped Mirror Reflectance
Shouhei Koyama, Hiroaki Ishizawa, Yusuke Sakata, Takuma Gotoh, Kunihisa Nakamura, Hiroyuki Kanai, Toyonori Nishimatsu, Eiji Toba
IEEE Instrumentation and Measurement Technology Conference proceeding (IMTC2005) in Ottawa, 2005

Measurement of Purity Index in Textile Based on IR Spectroscopy
Shouhei Koyama, Hiroaki Ishizawa, Toyonori Nishimatsu, Eiji Toba
IEEE Instrumentation and Measurement Technology Conference proceeding (IMTC2004) in Como, 2004

The Society of Instrument and Control Engineers

the Society of Fiber Science and Technology, Japan

The Illuminating Engineering Institute of Japan

IEEE

Japan Society of Kansei Engineering

The Japan Research Association for Textile End-Uses