1. 11NxȍیWh@Takaaki OIWA : New coordinate measuring machine featuring a parallel mechanism, 1st International conference of European Society for Precision Engineering and Nanotechnology, May 31-June 4, 1999.
  2. 12NxȍیWh@Takaaki OIWA : Study of Abbe's principle in parallel kimematics, Proc. 2nd Chemnitz Prallel Kinematics Seminar, April 12-13, 2000, 345-352.
  3. 12NxȍیWh@T.Oiwa : Coordinate Measuring Machine using Parallel Mechanism,Proc. Int. Conf. MECHATRONICS 2000, Sep. 21-23, Warsaw, Poland, Vol. 2, 423-426.@T. Oiwa : Coordinate Measuring Machine using Parallel Mechanism, Proc. 16th IMEKO World Congress, Sept. 25-28, 2000, Wien, Austria, Vol.8, pp211-214 .