All Stories

  1. Effect on PEEK/Graphite Film for Raceway Surface of PEEK Hybrid Ball Bearings with Surface Crack

    Article • January 2024, Springer Science + Business Media

    Dr Hitonobu Koike

  2. PEEK/graphite film formation on microgrooves of PEEK- hybrid radial Al2O3 ball bearings under rolling contact in dry condition

    Article • Tribology International, August 2022, Elsevier

    Dr Hitonobu Koike

  3. Influence on Tribological Behavior of PEEK Composite Film Layer on PEEK-PTFE Bearings with Artificial Defect in Dry Condition

    Article • Key Engineering Materials, November 2021, Trans Tech Publications

    Dr Hitonobu Koike

  4. Observation of Tribological Wear on PEEK Shaft with Artificial Defect under Radial Rolling Sliding Point Contact

    Article • Key Engineering Materials, August 2020, Trans Tech Publications

    Dr Hitonobu Koike

  5. Observation of Tribological Fatigue Fracture on PEEK Shaft with Artificial Defect under One-Point Rolling Contact by Using 2.5D Layer Method

    Article • Key Engineering Materials, July 2019, Trans Tech Publications

    Ph.D Koshiro Mizobe, Professor Katsuyuki Kida, Dr Hitonobu Koike

  6. Improvement of torsional fatigue limit and rendering surface defect harmless by shot peening for spring steel

    Article • Journal of Physics Conference Series, May 2017, Institute of Physics Publishing

    Dr Hitonobu Koike

  7. Investigation of wear, groove shape and load capacity of PPS-PTFE hybrid radial ball bearings

    Article • MATEC Web of Conferences, January 2017, EDP Sciences

    Dr Hitonobu Koike

  8. Investigation of subsurface fatigue crack in PEEK shaft under one-point rolling contact by using 2.5D layer observation method

    Article • MATEC Web of Conferences, January 2017, EDP Sciences

    Dr Hitonobu Koike

  9. Observation of Fatigue Fracture on PEEK Shaft against Alumina Bearing’s Ball under One-Point Rolling Contact

    Article • Materials Science Forum, November 2016, Trans Tech Publications

    Ph.D Koshiro Mizobe, Professor Katsuyuki Kida, Dr Hitonobu Koike

  10. Evaluation of Tribological Thermal Failure on PEEK-PTFE Hybrid Alumina Ball Bearings

    Article • Materials Science Forum, November 2016, Trans Tech Publications

    Ph.D Koshiro Mizobe, Professor Katsuyuki Kida, Dr Hitonobu Koike

  11. Increased fatigue strength of partially stabilised zirconia achieved by shot peening

    Article • Materials Science and Technology, October 2016, Taylor & Francis

    Dr Hitonobu Koike

  12. Backlash Evaluation of Hybrid UHMWPE-PEEK Bushes in a Small Robot Joint System

    Article • Key Engineering Materials, August 2016, Trans Tech Publications

    Professor Katsuyuki Kida, Ph.D Koshiro Mizobe, Hitonobu Koike, Dr Hitonobu Koike

  13. Wear of hybrid radial bearings (PEEK ring-PTFE retainer and alumina balls) under dry rolling contact

    Article • Tribology International, October 2015, Elsevier

    Dr Hitonobu Koike

  14. Increase in Strength of Partially Stabilized Zirconia After Shot Peening

    Article • Journal of Materials Engineering and Performance, July 2015, Springer Science + Business Media

    Dr Hitonobu Koike

  15. Measurement of Sliding Wear of Shot-Peened Partially Stabilized Zirconia Plate

    Article • Applied Mechanics and Materials, July 2014, Trans Tech Publications

    Dr Hitonobu Koike

  16. Relationship between repeatedly quenching and fisheye cracks around TiN and Al2O3 inclusions in high carbon bearing steel

    Article • Materials Research Innovations, March 2014, Taylor & Francis

    Professor Katsuyuki Kida, Dr Hitonobu Koike

  17. Measurement of fatigue and wear of PEEK bush and A7075 cam plate in humanoid robot joints

    Article • Materials Research Innovations, March 2014, Taylor & Francis

    Hitonobu Koike, Dr Hitonobu Koike

  18. Influence of Thrice-Induction-Heating and Once-Quenching on Fatigue Strength of SAE52100 Steel

    Article • Advanced Materials Research, February 2014, Trans Tech Publications

    Dr Hitonobu Koike

  19. Measurement of Backlash and Fatigue Wear of PEEK Bush in Robot Joint under Middle Load

    Article • Applied Mechanics and Materials, September 2013, Trans Tech Publications

    Dr Hitonobu Koike

  20. Change in Backlash of Humanoid Robot Joints under High Load

    Article • Applied Mechanics and Materials, August 2013, Trans Tech Publications

    Dr Hitonobu Koike

  21. Comparison of Wear on PEEK-PTFE and PPS-PTFE Radial Bearings under Rolling Contact Fatigue

    Article • Applied Mechanics and Materials, August 2013, Trans Tech Publications

    Dr Hitonobu Koike

  22. Relationship between Life, Load and Rotation Speed of UHMWPE Bearing under Dry Rolling Contact Fatigue

    Article • Advanced Materials Research, April 2013, Trans Tech Publications

    Dr Hitonobu Koike

  23. Effect of PTFE Retainer on Friction Coefficient in Polymer Thrust Bearings under Dry Contact

    Article • Advanced Materials Research, April 2013, Trans Tech Publications

    Dr Hitonobu Koike

  24. Influence of Load and Rotation Speed on Life of PPS Radial Bearings under Water Lubricant Conditions

    Article • Advanced Materials Research, April 2013, Trans Tech Publications

    Dr Hitonobu Koike

  25. Observation of Wear on PEEK-PTFE Hybrid Radial Bearings

    Article • Advanced Materials Research, April 2013, Trans Tech Publications

    Dr Hitonobu Koike

  26. Comparative evaluation of metal and polymer ball bearings

    Article • Wear, April 2013, Elsevier

    Dr Hitonobu Koike

  27. Observation of Wear Surface between Pure PEEK and Counterpart Materials; Titanium and 7075 Aluminum Alloy, in Robot Joint

    Article • Applied Mechanics and Materials, February 2013, Trans Tech Publications

    Dr Hitonobu Koike

  28. Fourier Transform Infrared Spectroscopy for Wear Debris Adhesion on PEEK Bearing Surface

    Article • Applied Mechanics and Materials, February 2013, Trans Tech Publications

    Dr Hitonobu Koike

  29. Influence of Repeated Quenching-Tempering on Fisheye Cracks around Tin and Al2O3 Inclusions in SAE 52100 Steel

    Article • Applied Mechanics and Materials, February 2013, Trans Tech Publications

    Dr Hitonobu Koike

  30. Surface Profile Observation of PTFE Radial Bearings under Rolling-Contact-Fatigue in Water

    Article • Applied Mechanics and Materials, February 2013, Trans Tech Publications

    Dr Hitonobu Koike

  31. Wear and Transmission Error between PEEK Bush and 7075 Aluminium Alloy Cam Plate Components in Robot Joints

    Article • Applied Mechanics and Materials, February 2013, Trans Tech Publications

    Dr Hitonobu Koike

  32. Observation of Fisheye Cracks around TiN and Al2O3 Inclusions in Repeatedly Quenched High Carbon Bearing Steel

    Article • Advanced Materials Research, September 2012, Trans Tech Publications

    Dr Hitonobu Koike

  33. Measurement of Joint Element Transmission Error in a Humanoid Walking Robot

    Article • Advanced Materials Research, September 2012, Trans Tech Publications

    Dr Hitonobu Koike

  34. Observation of Crack Propagation in PEEK Polymer Bearings under Water-Lubricated Conditions

    Article • Advanced Materials Research, September 2012, Trans Tech Publications

    Dr Hitonobu Koike

  35. Observations of Cracks from Microscopic Holes of PEEK Bearings under Rolling-Contact Fatigue in Water

    Article • Advanced Materials Research, September 2012, Trans Tech Publications

    Dr Hitonobu Koike

  36. Effect of Thrust Load and Rotation Speed on Wear Loss in PPS Race - PTFE Retainer Hybrid Polymer Thrust Bearings under Dry Contact

    Article • Advanced Materials Research, September 2012, Trans Tech Publications

    Dr Hitonobu Koike

  37. Relationship between Load, Rotation Speed and, Strength in All - PEEK and PEEK Race – PTFE Retainer Hybrid Polymer Bearings under Dry Rolling Contact Fatigue

    Article • Advanced Materials Research, September 2012, Trans Tech Publications

    Dr Hitonobu Koike

  38. Observation of magnetic flux density around fatigue crack tips in bearing steel using an SHPM with a three-dimensional small-gap probe

    Article • International Journal of Fatigue, June 2012, Elsevier

    Dr Hitonobu Koike

  39. Self-lubrication of PEEK polymer bearings in rolling contact fatigue under radial loads

    Article • Tribology International, May 2012, Elsevier

    Dr Hitonobu Koike

  40. Fatigue Strength Improvement of AISI E52100 Bearing Steel by Induction Heating and Repeated Quenching

    Article • Materials Science, March 2012, Springer Science + Business Media

    Dr Hitonobu Koike

  41. Influence of Wear and Backlash on Machined PEEK Polymer Bushes and 7075 Aluminium Alloy Cam Plates Used in Robot Joints

    Article • Applied Mechanics and Materials, February 2012, Trans Tech Publications

    Dr Hitonobu Koike

  42. Wear Resistance Improvement of Titanium Bearings by Laser Gas Nitriding

    Article • Applied Mechanics and Materials, January 2012, Trans Tech Publications

    Ryo Matsumoto, Dr Hitonobu Koike

  43. Coating of Ti64 Bearings in Air by Using a Q-Sw Laser

    Article • Applied Mechanics and Materials, January 2012, Trans Tech Publications

    Dr Hitonobu Koike

  44. Effect of Repeated Quenching on the Rotating Bending Strength of SAE52100 Bearing Steel

    Article • Advanced Materials Research, January 2012, Trans Tech Publications

    Dr Hitonobu Koike

  45. Investigation of Crack Initiation and Propagation during Rolling Contact Fatigue of SUJ2 Steel Bearings Using a Newly Developed One-Point Testing Machine

    Article • Applied Mechanics and Materials, January 2012, Trans Tech Publications

    Dr Hitonobu Koike

  46. Observation of non-metallic inclusions on repeatedly quenched SAE 52100 bearing steel fracture surfaces

    Article • International Journal of Materials and Product Technology, January 2012, Inderscience Publishers

    Dr Hitonobu Koike

  47. Observation of Wear in PEEK Race - PTFE Retainer Hybrid Polymer Bearings under Dry Contact

    Article • Advanced Materials Research, January 2012, Trans Tech Publications

    Dr Hitonobu Koike

  48. Coating of Ti64 Bearings in Air by Using a Q-Sw Laser

    Article • Advanced Materials Research, December 2011, Trans Tech Publications

    Dr Hitonobu Koike

  49. Wear Resistance Improvement of Titanium Bearings by Laser Gas Nitriding

    Article • Advanced Materials Research, December 2011, Trans Tech Publications

    Dr Hitonobu Koike

  50. Investigation of Crack Initiation and Propagation during Rolling Contact Fatigue of SUJ2 Steel Bearings Using a Newly Developed One-Point Testing Machine

    Article • Advanced Materials Research, December 2011, Trans Tech Publications

    Dr Hitonobu Koike

  51. Rolling Contact Fatigue of Titanium Alloys Coated by Gas Nitriding Using a Q-Sw Laser

    Article • Applied Mechanics and Materials, July 2011, Trans Tech Publications

    Ryo Matsumoto, Dr Hitonobu Koike

  52. The Influence of Stress Ratio on Changes in Magnetic Flux Density around Fatigue Crack Tips of Carbon Tool Steel

    Article • Applied Mechanics and Materials, July 2011, Trans Tech Publications

    Dr Hitonobu Koike

  53. Effects of Magnetizations on Three Dimensional Magnetic Flux Density of Pre-Cracked Medium Carbon Low Alloy Steel (JIS S45C)

    Article • Applied Mechanics and Materials, July 2011, Trans Tech Publications

    Dr Hitonobu Koike

  54. Effect of Repeated Induction Heating on Fatigue Crack Propagation in SAE 52100 Bearing Steel

    Article • Advanced Materials Research, March 2011, Trans Tech Publications

    Dr Hitonobu Koike

  55. Influence of Radial Load on PEEK Plastic Bearings Life Cycle under Water Lubricated Conditions

    Article • Advanced Materials Research, March 2011, Trans Tech Publications

    Dr Hitonobu Koike

  56. Wear Resistance Improvement of Titanium Bearings by Laser Gas Nitriding

    Article • Advanced Materials Research, March 2011, Trans Tech Publications

    Dr Hitonobu Koike

  57. Influence of Radial Load on PEEK Plastic Bearings Life Cycle

    Article • Advanced Materials Research, October 2010, Trans Tech Publications

    Dr Hitonobu Koike