@article{CTT100622334,
  author = {Sheng Wang and Dongming Sun and Junpei Sakurai and Kee-Bong Choi and Seiichi Hata and Akira Shimokohbe},
  title = {Driving mechanism, design, fabrication process and experiments of a cylindrical ultrasonic linear microactuator},
  journal = {IEEE Trans. Ultrasonics, Ferroelectrics, and Frequency Control},
  year = 2011,
}

@article{CTT100600676,
  author = {Dongming Sun and Sheng Wang and Junpei Sakurai and Kee-Bong Choi and Akira Shimokohbe and Seiichi Hata},
  title = {A piezoelectric linear ultrasonic motor with the structure of circular cylindrical stator and slider},
  journal = {SMART MATERIALS AND STRUCTURES},
  year = 2010,
}

@article{CTT100600593,
  author = {Dongming Sun and Sheng Wang and Junpei Sakurai and Kee-Bong Choi and Seiichi Hata and Akira Shimokohbe},
  title = {A traveling wave type of piezoelectric ultrasonic bidirectional linear microactuator},
  journal = {Applied Physics Express},
  year = 2009,
}

@article{CTT100592383,
  author = {進士忠彦 and 張 暁友 and 飯島 知弘 and 崔 起鳳 and 李 黎川 and 下河邉明},
  title = {ラジアル磁気軸受の高精度制御},
  journal = {精密工学会誌},
  year = 2001,
}

@article{CTT100444112,
  author = {秦誠一 and 松崎将健 and 崔起鳳 and 佐藤海二 and 下河辺明},
  title = {バルク金属ガラスを用いた微小球面軸受},
  journal = {日本機械学会IIP2000 情報・知能・精密機器部門講演会講演論文集},
  year = 2000,
}

@article{CTT100444111,
  author = {T. Shinshi and C. Iijima and Z. Xiaoyou and K-B. Choi and K. Sato and A. Shimokohbe},
  title = {Precision Radial Magnetic Bearing},
  journal = {ASPE 15th Annual Meeting},
  year = 2000,
}

@article{CTT100444107,
  author = {K-B. Choi and S.H. Kim and Y.K. Kwak},
  title = {Tracking Performance Improvement of a Magnetic Levitation Based Fine Manipulator},
  journal = {J. of KSPE},
  year = 1999,
}

@article{CTT100444109,
  author = {E-J. Shin and T-S. Song and J. Lyou and K-B. Choi},
  title = {Decentralized Adaptive Control Scheme for Magnetically Levitated Fine Manipulators},
  journal = {J. of IEEE Korea Council},
  year = 1999,
}

@article{CTT100444108,
  author = {I-M. Choi and K-B. Choi and S-H. Kim and Y.K. Kwak},
  title = {A New Optical Disk Actuator Combining Coarse and Precise Fine Motion in a Single Actuation System},
  journal = {KSME(A)},
  year = 1999,
}

@article{CTT100444110,
  author = {K-B. Choi and S.H. Kim and Y.K. Kwak},
  title = {Robust Control for Micro Trajectory Motion of a Magnetically Levitated precise Platform},
  journal = {Proc. of the 17th IASTED Int. Conference},
  year = 1998,
}

@article{CTT100444106,
  author = {K-H. Lee and K-B. Choi and K. Park and S.H. Kim and Y.K. Kwak},
  title = {A Study on Three Degree-of-freedom Fine Positioning Device Based on Electromagnetic Force},
  journal = {J. of KSPE},
  year = 1998,
}

@article{CTT100444105,
  author = {D.S. Kim and K-B. Choi and S.H. Kim and Y.K. Kwak},
  title = {A Study on Precision Drive Mechanism for Monochromator Grating},
  journal = {J. of KSPE},
  year = 1997,
}

@article{CTT100444104,
  author = {K-B. Choi and S.H. Kim and Y.K. Kwak},
  title = {A Fine Manipulator with Compliance for Wafer Probing System},
  journal = {J. of KSPE},
  year = 1997,
}

@article{CTT100444103,
  author = {K. Park and K-B. Choi and S.H. Kim and Y.K. Kwak},
  title = {Magnetic Levitated High Precision Positioning System Based on Antagonistic Mechanism},
  journal = {IEEE Tran. on Magnetics},
  year = 1996,
}

@article{CTT100444102,
  author = {K-B. Choi and K. Park and S.H. Kim and Y.K. Kwak},
  title = {Development of a Noncontacting 6 DOF Micro-Positioner Driven by Magnetic Force - Design, Modeling and Control -},
  journal = {Tran. of KSME(A)},
  year = 1996,
}

@article{CTT100444101,
  author = {K-B. Choi and K. Park and S.H. Kim and Y.K. Kwak},
  title = {Design of Magnetically Suspended Frictionless Manipulator},
  journal = {KSME Journal},
  year = 1995,
}

@inproceedings{CTT100592380,
  author = {張 暁友 and 進士忠彦 and 李 黎川 and 崔 起鳳 and 下河邉明},
  title = {精密磁気軸受の研究（第２報）－２自由度制御型磁気軸受の回転精度－},
  booktitle = {2001年度精密工学会春季大会学術講演会講演集},
  year = 2001,
}

@misc{CTT100595518,
  author = {KEE-BONG CHOI},
  title = {A Fine Positioning Mechanism Based on Antagonistic Arrangement of 
Magnetic Levitation Forces},
  year = 1998,
}

@misc{CTT100594519,
  author = {KEE-BONG CHOI},
  title = {A Study on the Development of 2-Axis Interpolator for Numerical 
Control and the Position Control},
  year = 1988,
}



@phdthesis{CTT100595518,
  author = {KEE-BONG CHOI},
  title = {A Fine Positioning Mechanism Based on Antagonistic Arrangement of 
Magnetic Levitation Forces},
  school = {韓国科学技術院},
  year = 1998,
}

@mastersthesis{CTT100594519,
  author = {KEE-BONG CHOI},
  title = {A Study on the Development of 2-Axis Interpolator for Numerical 
Control and the Position Control},
  school = {韓国科学技術院},
  year = 1988,
}