Research papers |
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Authors: Tasneem Zinat, Koichi Oka
Title: Design and performance analysis of soft pneumatic manipulator-based linear cutter and stem holder for sweet pepper harvesting
Journal: Journal of Field Robotics, Vol. 41, No. 4, pp. 1204-1225, Wiley
Year: 2024
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Authors: Ren Mengyi, Koichi Oka
Title: Design of a Noncontact Torsion Testing Device Using Magnetic Levitation Mechanism
Journal: Actuators, Vol. 12, No. 4, MDPI
Year: 2023
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Authors: Ren Mengyi, Koichi Oka
Title: Adaptive sliding mode control of a magnetic levitation three-point bending device
Journal: International Journal of Applied Electromagnetics and Mechanics, Vol. 71, No. S1, pp. S143-S155, IOS Press
Year: 2023
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Authors: Shi Ce, Sun Feng, Xu Fangchao, Jin Junjie, Tong Ling, Zhou Qing, Koichi Oka
Title: Analysis of position response characteristics of magnetic driven oil-free scroll compressor
Journal: International Journal of Applied Electromagnetics and Mechanics, Vol. 71, No. S1, pp. S265-S274, IOS Press
Year: 2023
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Authors: Ren Mengyi, Koichi Oka
Title: Design of a Non-contact Bending Testing Device using Magnetic Levitation Mechanism
Journal: IEEE Transactions on Industrial Electronics, Vol. 71, No. 2, pp. 1697-1707
Year: 2023
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Authors: Chengcheng Xu, Fangchao Xu, Feng Sun, Xiaoyou Zhang, Junjie Jin, Boran Luan, Koichi Oka
Title: Research on an Intelligent Control Method of a Magnetic Actuator for Micro Electrical Discharge Machining
Journal: Actuators, Vol. 11, No. 12, MDPI
Year: 2022
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Authors: Boran Luan, Xiaoyou Zhang, Fangchao Xu, Guang Yang, Junjie Jin, Chengcheng Xu, Feng Sun, Koichi Oka
Title: High Precision Magnetic Levitation Actuator for Micro-EDM
Journal: Actuators, Vol. 11, No. 12, MDPI
Year: 2022
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Authors: Ce Shi , Feng Sun, Fangchao Xu, Junjie Jin, Ling Tong, Qing Zhou, Koichi Oka
Title: Analysis of Trajectory Tracking Characteristics of a Magnetically Driven Oil‑Free Scroll Compressor
Journal: Actuators, Vol. 312, No. 11, MDPI
Year: 2022
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Authors: Ren Mengyi, Koichi Oka
Title: Design and Analysis of a Non-Contact Tension Testing Device Based on Magnetic Levitation
Journal: IEEE Access, Vol. 10, pp. 19312-19332, IEEE
Year: 2022
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Authors: Chuan Zhao, Koichi Oka, Feng Sun, Akinori Harada, Junjie Jin, Ming Zhang
Title: Design of Zero-power Control Strategy with Resisting Tilt of Hybrid Magnetic Levitation System
Journal: IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, IEEE
Year: 2021
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Authors: James Lin, Koichi Oka, Akinori Harada
Title: Zero-power tip-tilt control of a magnetically levitated platform by lateral displacement of hybrid-electromagnets
Journal: International Journal of Applied Electromagnetics and Mechanics, Vol. 66, No. 1, pp. 63-74, IOS Press
Year: 2021
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Authors: Koichi Oka, Kentaro Yamamoto, Akinori Harada
Title: Magnetic suspension mechanism using rotary permanent magnets
Journal: International Journal of Applied Electromagnetics and Mechanics 64 (2020) 977–983, Vol. 64, No. 1-4, pp. 977-983, IOS Press
Year: 2020
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Authors: Chuan Zhao, Feng Sun, Junjie Jin, Hu Jing Tang, Fangchao Xu, Qian Li, Koichi Oka
Title: Analysis of Quasi-Zero Power Characteristic for a Permanent Magnetic Levitation System with a Variable Flux Path Control Mechanism
Journal: IEEE/ASME Transactions on Mechatronics, IEEE/ASME
Year: 2020
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Authors: Zhou Ran, Yan Mingyin, Guo Yongquan, Jin Junjie, Sun Feng, Zhang Xiaoyou, Koichi Oka
Title: Suspension characteristics of a zero-power permanent magnetic suspension system with flux path control
Journal: International Journal of Applied Electromagnetics and Mechanics, Vol. 63, No. 1, pp. 187-198, IOS press
Year: 2020
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Authors: Nami Chiramathe, Koichi Oka, Masayuki Sato, Akinori Harada, Koji Muraoka
Title: H-infinity Control-Based Robust CAS Design for QTW-UAV via the Multiple-Model Approach with Particle Swarm Optimization
Journal: International Journal of Aerospace Engineering, Vol. 2019, Hindawi
Year: 2019
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Authors: Ming Zhang, Lijin Fang, Feng Sun, Koichi Oka
Title: A Novel Wire-Driven Variable-Stiffness Joint Based on a Permanent Magnetic Mechanism
Journal: Journal of Mechanisms and Robotics-Transactions of the ASME, Vol. 11, No. 5, pp. 051001-1-051001-9, ASME
Year: 2019
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Authors: Sun Feng, Zhou Ran, Jin Junjie, Li Qiang, Xu Fangchao, Sun Xingwei, Koichi Oka
Title: Optimal design for quasi-zero power performance of a permanent magnetic suspension system
Journal: International Journal of Applied Electromagnetics and Mechanics, IOS Press
Year: 2018
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Authors: Nami Chiramathe, Koichi Oka, Akinori Harada, 佐藤 昌之
Title: H∞ Control-based CAS Design of QTW-UAVs Using Particle Swarm Optimization
Journal: Trans. Japan Soc. Aero. Space Sci., Vol. 61, No. 5, pp. 226-229, 日本航空宇宙学会
Year: 2018
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Authors: Akinori Harada, Tooru Ezaki, Tomoaki Wakayama, Koichi Oka
Title: Air Traffic Efficiency Analysis of Airliner Scheduled Flights Using Collaborative Actions for Renovation of Air Traffic Systems Open Data
Journal: Journal of Advanced Transportation, Vol. 2018, No. 2734763, Hindawi Publishing Corporation
Year: 2018
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Authors: Annasiwaththa Annasi Waththege Buddhika Imantha, Koichi Oka, Akinori Harada
Title: Magnetically levitated linear slider with a non-contact power transfer method
Journal: International Journal of Applied Electromagnetics and Mechanics, Vol. 54, No. 2, pp. 223-237, IOS Press
Year: 2017
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Authors: Eizentals Peteris, OKA Koichi
Title: 3D pose estimation of green pepper fruit for automated
harvesting
Journal: Computers and Electronics in Agriculture, Vol. 128, pp. 127-140, Elsevier
Year: 2016
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Authors: Junjie Jin, Duan Zhenyun, Sun Feng, Li Qing, Xia Pengpeng, Jin Jiaqi, OKA Koichi
Title: Model identification and analysis for parallel permanent magnetic suspension system based on ARX model
Journal: Int. J. of Applied Electromagnetics and Mechanics, Vol. 52, No. 1-2, pp. 145-152, IOS Press
Year: 2016
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Authors: Annasiwaththa Annasi Waththege Buddhika Imantha, OKA Koichi
Title: Design concept and analysis of a magnetically levitated linear slider with non-contact power transfer
Journal: Int. J. of Applied Electromagnetics and Mechanics, Vol. 52, No. 1-2, pp. 207-213, IOS Press
Year: 2016
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Authors: OKA Koichi, Tomohiro Okazaki, Toshiyuki Morimitsu
Title: 2 DOF non-contact magnetic suspension system: A feasibility study
Journal: International Journal of Applied Electromagnetics and Mechanics, Vol. 45, pp. 627-632, IOS Press
Year: 2014
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Authors: BACHCHE Shivaji, OKA Koichi
Title: Distinction of Green Sweet Peppers by Using Various Color Space Models and Computation of 3 Dimensional Location Coordinates of Recognized Green Sweet Peppers Based on Parallel Stereovision System
Journal: Journal of System Design and Dynamics, Vol. 7, No. 2, pp. 178-196, 日本機械学会
Year: 2013
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Authors: Zhong Xu, Feng Sun, Jun Jie, OKA Koichi
Title: Proposal of Noncontact Operation Robotic Hand Using Permanent Magnetic Suspension
Journal: Advanced Materials Research, Vol. 712-715, pp. 2277-2280, Scientific.Net
Year: 2013
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Authors: BACHCHE Shivaji, OKA Koichi
Title: Performance Testing of Thermal Cutting Systems for Sweet Pepper Harvesting Robot in Greenhouse Horticulture
Journal: Journal of System Design and Dynamics, Vol. 7, No. 1, pp. 36-51, 日本機械学会
Year: 2013
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Authors: SUN FENG, OKA Koichi, Junjie Jin
Title: A zero suspension force improvement method of a permanent magnetic suspension device
Journal: International Journal of Applied Electromagnetics and Mechanics, Vol. 41, No. 1, pp. 1-12, IOS press
Year: 2013
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Authors: OKA Koichi, SUN FENG, JIN Junjie
Title: Improvement Methods of Zero Suspension Force Performance of a Variable Flux Path Control Device
Journal: 日本AEM学会誌, Vol. 20, No. 3, pp. 612-618, 養賢堂
Year: 2012
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Authors: OKA Koichi, Feng Sun, Akira Tsurumi, Gota Nakamura
Title: Study of the Spinning Mechanism Resulting from Permanent Magnet
Linear Actuation
Journal: Materials Science Forum, Vol. 721, pp. 255-260, Trans Tech Publications
Year: 2012
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Authors: Sadouirai Fausan, OKA Koichi
Title: The Frequency Response of Vibration Control with a Linear Actuator and a Permanent Magnet
Journal: 日本AEM学会誌, Vol. 20, No. 2, pp. 526-531, 養賢堂
Year: 2012
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Authors: SUN FENG, OKA Koichi, JIN Junjie
Title: Improvement of Zero Suspension Force Performance Using a Special Magnet for a Magnetic Suspension Device
Journal: Advanced Engineering Forum , Vol. 2-3, pp. 1099-1104, Trans Tech Publications, Switzerland
Year: 2011
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Authors: SUN FENG, OKA Koichi, Akira Tsurumi
Title: Torque Analysis of a Noncontact Spinning System Using Linearly Actuated Magnets
Journal: 日本AEM学会誌, Vol. 19, No. 3, pp. 517-520, 日本AEM学会
Year: 2011
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Authors: SUN FENG, JIN Junjie, OKA Koichi
Title: Characteristics Analysis of Noncontact Spinning Mechanism with
Numerical Simulation
Journal: Advanced Materials Research, Vol. 308-310, pp. 2146-2151, Trans Tech Publications, Switzerland
Year: 2011
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Authors: SUN FENG, JIN Junjie, OKA Koichi
Title: Noncontact Magnetic Suspension of an Iron Ball Using Flux Path Control Mechanism
Journal: Advanced Materials Research, Vol. 230-232, pp. 573-577, Trans Tech Publications, Switzerland
Year: 2011
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Authors: Sadouirai Fausan, OKA Koichi, Akiyuki Sano, Yuuta Hirokawa
Title: Vibration Control With Linear Actuator Permanent Magnet System using LQR Method
Journal: Journal of System Design and Dynamics, Vol. 5, No. 6, pp. 1238-1250, 日本機械学会
Year: 2011
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Authors: Sun Feng, OKA Koichi
Title: Feasibility Analysis of Two Iron Balls Simultaneous Suspension Using Flux Path Control Mechanism
Journal: Journal of System Design and Dynamics, Vol. 5, No. 5, pp. 1155-1166, 日本機械学会
Year: 2011
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Authors: Y.Inoue, T.Liu, K.Shibata, K.Oka, Chunguang LI
Title: Addional Design Features of a Mater-slave Control System with Force Sensing and Energy Recycling for upper Limb Rehablitation Robots
Journal: Instrumentation Science & Technology
Year: 2010
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Authors: Koichi Oka, Feng Sun
Title: Noncontact Spining Mechanism Using Rotary Permanent Magnets
Journal: 電気学会論文誌D
Year: 2010
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Authors: K. Oka, Sun Feng, Yuuta Saibara
Title: Magnetic suspension system by flux path control using rotary actuator
Journal: International Journal of Applied Electromagnetics and Mechanics
Year: 2010
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Authors: C. Li, Y. Inoue, T. Liu, K. Shibata, K. Oka
Title: Design and Implementation of a Compact Master-Slave Robotic System with Force Feedback and Energy Recycling
Journal: Journal of System Design and Dynamics, Vol. 2, No. 2, pp. 282-295, Trans. JSME
Year: 2010
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Authors: Chunguang LI, Yoshio INOUE, Tao LIU, Kyoko SHIBATA, Koichi OKA
Title: Design and Implementation of a Compact Master-Slave Robotic System with Force Feedback and Energy Recycling
Journal: Journal of System Design and Dynamics, Vol. 4, No. 1, pp. 13-25, JSME
Year: 2010
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Authors: Y. MATSUI, I. KOUNO, T. IWASA, M. MIYANAKA, Y. HIGASHI, Y. KUMAGAI, K. OKA, M. KATAOKA, M. NAGAHARA
Title: Feasibility study for multipurpose usage of CCTV
Journal: 14th ITS world congress, CD-ROM
Year: 2007
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Authors: OKA Koichi
Title: A Miniaturized Levitation System With Motion Control Using a Piezoelectric Actuator
Journal: IEEE Trans. on Control System Technology, Vol. 10, No. 5, pp. 666-670
Year: 2002
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