List of Recent Papers, T.Tokoro 1992-2009

• Diagnosis of Degradation Condition of Silicone Rubber Using Hydrophobic Surface Analysis, T. Tokoro, T. Inoki, E. Wada and M. Nagao
  （２００８・ISEIM2008.Proceedings of 2008 International Symposium on Electrical Insulating Materials, September 7-11, 2008, Yokkaichi, Mie, Japan, P1-25, pp.283-286(2008.9)）

• Influence of Partial Discharge Exposure on Electrical Condition in LDPE Film, M. Fujii, A. Fujimoto, T. Tokoro, N. Hozumi and M. Nagao
  （２００８・Proceedings of 2008 International Symposium on Electrical Insulating Materials, September 7-11, 2008, Yokkaichi, Mie, Japan, B-4, pp.48-51(2008.9)）

• Digest Report on the Investigation Committee on Surface Properties and Long-term Performance of Polymeric Insulating Materials for Outdoor Use, Chairperson Hiroya Homma (CRIEPI), Secretary Tetsuro Tokoro (Gifu National College of Technology), Secretary Yoshihiko Hirano (Toshiba) and Assistant Secretary Masaaki Ueda (SWCC)
  （２００８・Proceedings of 2008 International Symposium on Electrical Insulating Materials, September 7-11, 2008, Yokkaichi, Mie, Japan, DR-2, p.ii(2008.9)）

• Co-chairman, Session EB: Polymer Insulators, Outdoor Insulation & Insulation Medium for Power Equipment
  2008 International Symposium on Electrical Insulating Materials, September 10, 2008, Yokkaichi, Mie, Japan, Session EB

• Effect of Temperature on the Evaluation of Degradation Condition of Silicone Rubber, Tetsuro Tokoro*, Taiga Makita and Masayuki Nagao
  （２００８・CEIDP 3A -01 Outdoor Insulation, pp.284-287 (2008)・(2008.10.27)）
  　

• Effect of Temperature on the Evaluation of Hydrophobic Condition of Polymer Surface, T.Tokoro, A. Ohno and M. Nagao,
  （２００７・IEEE CEIDP2007、3-23, pp.316-319 (2007.10)）

• Diagnosis of Hydrophobicity of Polymer Insulator Using Image Analysis, TOKORO Tetsuro,
  （２００７・Memoirs of Gifu National College of Technology, No.42, pp.67-72 (2007)）

• Diagnosis of Surface Degradation of Polymer Material Using Dielectric Measurements, TOKORO Tetsuro,
  （２００７・Memoirs of Gifu National College of Technology, No.42, pp.73-78 (2007)）

• Technical Report of the Investigation Committee on the Evaluation of Discharge Property and Degradation Phenomenon on the Surface of Polymer Insulating Materials, GOTO Kazutoshi, et. al.　
  （２００６・IEEJ Technical Report, No.1071, p.1-66 (2006)）

• Diagnosis of Degradation Condition of Polymer Material Using Hydrophobic Surface Analysis, T.Tokoro, S.Yanagihara, M.Nagao?
  （２００６・IEEE CEIDP2006、(2006.10)pp.445-448.）

• Development of New Electrode System for High Field Dielectric Properties Measurement Using Evaporated Polypropylene Thin Guard Film, FUJII Masayuki, et. al.?
  （２００６・IEEJ Transactions on Fundamentals and Materials, Vol.126 No.7，pp.716-722 (2006)）

• Diagnosis of Degradation Condition of Polymer Material Using Hydrophobic Surface Analysis,  T.Tokoro, S.Yanagihara, M.Nagao （２００６・IEEE CEIDP2006、(2006.10)）
  

• Diagnosis of Hydrophobic Condition of Silicone Rubber Using Dielectric Measurement and Image Analysis, Tetsuro Tokoro, Satoshi Yanagihara, and Masamitsu Kosaki
  （２００５・IEEE Conf. on Electrical Insulation and Dielectric Phenomena (CEIDP), 3B-1, (2005), pp.281-284.）
• Transient Response of Various Kinds of High Field Alternating Signals for Low Density Polyethylene, Shingo Tsuboi, Ayano Fujita, Suguru Masuda, Kazuyuki Tohyama, Tetsuro Tokoro, Masamitsu Kosaki, and Masayuki Nagao.
  （２００５・IEEE Conf. on Electrical Insulation and Dielectric Phenomena (CEIDP), 7C-7, (2005), pp.697-700.）
• Considerations for Conduction Mechanisms Under Ac High Field for Low Density Polyethylene Ayano Fujita, Shingo Tsuboi, Suguru Masuda, Kazuyuki Tohyama, Tetsuro Tokoro, Masamitsu Kosaki, Masayuki Nagao, and Yoshinao Murata.
  （２００５・IEEE Conf. on Electrical Insulation and Dielectric Phenomena (CEIDP), 7C-8, (2005), pp.701-704.）
• Dielectric Measurements of Degradation Condition of Polymer Material Surface, T. Tokoro, J. Sato, T. Iwasaki and M. Kosaki,  （２００５・IEEE ISEIM2005、P2-12, pp.576-579(2005.6)）
• Film Thickness Dependences of Ac High Field Dissipation Current Waveform for Low Density Polyethylene, Kazuyuki Tohyama, Suguru Masuda, Masayuki Nagao, Tetsuro Tokoro and Masamitsu Kosaki
  （２００５・IEEE ISEIM2005、A1-3, pp.25-28 (2005.6)）
  
• Diagnosis of Hydrophobic Condition of Polymer Materials using Dielectric Measurement and Image Analysis, T. Tokoro, T. Iwasaki and M. Kosaki
  （２００４・IEEE CEIDP2004、7B-6, pp.627-630）
• Dissipation Current Waveform Observation of Polyethylene Film under Ac High-Field, Suguru Masuda, Kazuyuki Tohyama, Masayuki Nagao, Tetsuro Tokoro and Masamitsu Kosaki 
  （２００４・IEEE CEIDP2004､5A-8, pp.368-371）
  
• Frequency dependence of high field dissipation current waveform of LDPE film, S.Kawaguchi, K.Tohyama, M.Nagao, T.Tokoro and M.Kosaki
  （２００３・2003 IEEE/CEIDP (2003), 5C-9, pp.494-497）
• Module Temperature Model for Estimating the Electric Energy Generated by 40kW Photovoltaic Power System, S.Nakagawa, T.Sato, T.Tokoro，etc,.
  （２００３・ICEE2003, pp.***-***）
• Relation between Motion of Water Droplets and Dielectric Property of Silicone Rubber under AC High-field Application, T. Tokoro , Y. Katayama, Y. Omoto and M. Kosaki
  （２００３・IEEE ICPADM2003,Nagoya, S24-4, pp.1236-1239）
• Dielectric Properties and Space Charge Formation in Polypropylene Film up to AC Breakdown, M. Fujii, K.Tohyama, T.Tokoro, Y.Muramoto, N. Hozumi and M. Nagao
  （２００３・IEEE ICPADM2003,Nagoya, P3-18, pp.587-590）
  
• Image analysis of hydrophobicity and dielectric property of polymer insulating material, T. Tokoro, Y. Omoto, Y. Katayama and M. Kosaki
  （２００２・ＩＥＥＥ　ＣＥＩＤＰ２００２、ＣＡＮＣＵＮ、Ｍｅｘｉｃｏ, 4A-12, pp.347-350）
• High field Dissipation Current Waveform of Polyethylene Film Obtained by New Method, A. Tanaka, K.Tohyama, T.Tokoro, M. Kosaki, and M. Nagao
  （２００２・ＩＥＥＥ　ＣＥＩＤＰ２００２、ＣＡＮＣＵＮ、Ｍｅｘｉｃｏ, 5C-9, pp.610-613）
• Digest Report of the Investigation Committee on the Evaluation of Discharge Property and Degradation Phenomenon on the Surface of Polymer Insulating Materials, K.Goto, T.Tokoro, H.Homma and Y.Hirano
  （２００２・34th IEEJ EEIM System  Symposium、K-1, p.217）．
• Digest Report of the Investigation Committee on the Evaluation of Discharge Property and Degradation Phenomenon on the Surface of Polymer Insulating Materials, K.Goto, T.Tokoro, H.Homma and Y.Hirano
  （２００２・IEEJ Electrical Insulation News in Asia, No.9, p.13）．
• Construction of Electric Power Generation Database of 40kW Photovoltaic Power Systems at National Colleges of Technology in Japan, S.Nakagawa, T.Tokoro, T.Nakano, K.Hayama, H.Ohyama and T.Yamaguchi
  （２００２・International Conference on Electrical Engineering 2002 (ICEE2002) (Cheju Island, July 7-11, 2002), pp.350-353）
  
• Surface Energies, Diffusion Coefficients, Activation Energy and Loss and Recovery of Hydrophobicity of HTV Silicone Rubber, T.Tokoro and R.Hackam
  （２００１・ IEEE Trans. on Dielectric and E.I. vol.6,(2001),pp.1088-1097.）
• Image Analysis of Hydrophobicity of Polymer Insulators using PVM, T.Tokoro, Y.Omoto and M.Kosaki
  （２００１・ IEEE Conf. on Electrical Insulation and Dielectric Phenomena (CEIDP), 8A-5, (2001), pp. 581-584.）．
• High field dissipation current waveform of XLPE film obtained by new method, A. Tanaka, K.Tohyama, T.Tokoro, M. Kosaki, and M. Nagao
  （２００１・IEEE Conf. on Electrical Insulation and Dielectric Phenomena (CEIDP), 2B-10, (2001), pp.145-148.）
• Aging and Recovery of HTV Silicone and EPDM Rubbers Due to Continuous Wetting, T.Tokoro, Y.Katayama, M.Kosaki and R.Hackam
  （２００１・IEEE Int. Symp. on Electrical Insulating Materials (ISEIM'01) B3,(2001), pp. 51-54.）．
• Improvements of High Accuracy AC Dissipation Current Waveform Observation System, A.Tanaka, K.tohyama, M.Nagao, T.Tokoao and M.Kosaki
  （２００１・ IEEE Int. Symp. on Electrical Insulating Materials (ISEIM'01) F6,(2001), pp.423-426.）．
• Numerical Analysis of Space Charge Distribution in Polypropylene Film under AC High Field, M.Fujii, M.Fukuma, T.Tokoro, Y.Muramoto, N.Hozumi, M.Nagao
  （２００１・ IEEE Int. Symp. on Electrical Insulating Materials (ISEIM'01) P1-20,(2001), pp.156-159.）．
  
• Image Analysis of Hydrophobicity of Polymer Insulators by Observing at Microscopic Area, T.Tokoro, M.Nagao and M.Kosaki
  (2000, Conf.on Electrical Insulation and Dielectric Phenomena (CEIDP'00), 3A-9, pp.226-229)
• DSP Measurement of Dielectric Property of Polymeric Materials Using Interdigital Electrode, H.Shindou, T.Tokoro and M.Kosaki
  (2000, Conf.on Electrical Insulation and Dielectric Phenomena (CEIDP'00), 37-14 pp.600-603)
• Development of High Accuracy Measurement System for Dissipation Current of Nonpolar Polymers, K.Tohyama, T.Tokoro, M.Nagao and M.Kosaki
  (2000, Conf.on Electrical Insulation and Dielectric Phenomena (CEIDP'00), 3C-6, pp.713-716) 
• Temperature Dependence of Dielectric Properties and Space Charge Formation in PP Film under AC High-field, M.Fujii, Y.Muramoto, K.Tohyama, N.Hozumi, T.Tokoro and M.Nagao
  (2000, 6th Int. Conf. on Properties and Applications of Dielectric Materials (ICPADM'2000, pp.97-100)
  
• Surface Energies, Diffusion Coefficients, Activation Energy and Loss and Recovery of Hydrophobicity of Nylon 6/6, T.Tokoro and R.Hackam
  (1999, IEEE Trans. on Dielectric and E.I.,vol.6, pp.754-762)
  
• Image Analysis of Hydrophobicity of Silicone Rubber Insulator, T.Tokoro, M.Nagao and M.Kosaki
  (1999, Conf.on Electrical Insulation and Dielectric Phenomena (CEIDP'99), 8A-23, pp.763-766)
  
• Increment of capacitive current and space charge formation of PP film near breakdown field, M.Fujii, K.Thoyama, T.Tokoro, M.Kosaki, Y.Muramoto and M.Nagao
  (1999, Conf.on Electrical Insulation and Dielectric Phenomena (CEIDP'99), 2A-18, pp.128-131)
  
• Effect of Water Absorption on the High-field Dielectric Property of Silicone Rubber, T.Tokoro, M.Nagao and M.Kosaki
  (1998, IEEE Int. Symp. on Electrical Insulating Materials (ISEIM'98) C3-3,Toyohashi Japan, Sep.25-28, pp.461-464)
  
• Development of New Electrode System for Measurement of High Field Dielectric Properties near Breakdown Field, M.Fujii, K.Tohyama, T.Tokoro, Y.Mizuno, M.Nagao and M.Kosaki
  (1998, IEEE Int. Symp. on Electrical Insulating Materials (ISEIM'98) P1-49,Toyohashi Japan, Sep.25-28, pp.313-316)
  
• Development of DSP Measuring System of High-field Dielectric Property of Silicone Rubber Sheets, Y.Fujii,T.Tokoro, M.Nagao and M.Kosaki
  (1998, IEEE Int. Symp. on Electrical Insulating Materials (ISEIM'98) P2-2, Toyohashi Japan, Sep.25-28, pp.603-606)
  
• High-field Dissipation Current Waveforms in E-Beam Irradiated XLPE Film Superposed by DC Ramp Voltage, K.Tohyama,T.Tokoro, S.Mitsumoto,M.Nagao and M.Kosaki
  (1997, Conf.on Electrical Insulation and Dielectric Phenomena (CEIDP'97), USA,Oct.19-22, pp.146-149)
  
• Recovery of Hydrophobicity of Ethylene Propylene Diene Monomer Aged by Heat and Saline Water, T.Tokoro and R.Hackam
  (1997, 5th International Conference on Properties and Applications of Dielectric Materials (ICPADM-97) 01P07, Seoul, Korea, May 25-30, pp.82-85)
  
• Variations of High-Field Dissipation Current Waveform under AC Ramp Voltage Application, K.Tohyama,T.Tokoro,S.Mitsumoto,M.Nagao and K.Kosaki
  (1997, 5th International Conference on Properties and Applications of Dielectric Materials (ICPADM-97) 01P04, Seoul, Korea, May 25-30, pp.70-73)
  
• Effect of Water Salinity and Temperature on the Hydrophobicity of Ethylene Diene Monomer Insulator, T.Tokoro and R.Hackam
  (1996, Conf.on Electrical Insulation and Dielectric Phenomena (CEIDP'96),5A-10,San Francisco,USA,Oct.20-23,pp.424-427)
  
• Study of High-field AC Conduction mechanism of Electron Beam Irradiated Crosslinked Polyethylene Film, K.Tohyama,T.Tokoro, et. al..
  (1996, Conf.on Electrical Insulation and Dielectric Phenomena (CEIDP'96),1-3,San Francisco,USA,Oct.20-23,pp.16-19)
  
• High-field Dissipation Current Waveform in e-beam Irradiated XLPE Film at High Temperature, M.Nagao, T.Tokoro, et. al..
  (1996, IEEE Trans.on Dielectric and E.I.,vol.3,pp.375-379)
  
• Recovery of Hydrophobicity of Nylon Aged by Heat and Saline Water, T.Tokoro and R.Hackam
  (1996, Conf. Record of ISEI'96,Montreal,Canada,pp.283-286)
  
• Effect of Water Salinity, Electric Stress and Temperature on the Hydrophobicity of Nylon, T.Tokoro and R.Hackam
  (1995, Conference on Electrical Insulation and Dielectric Phenomena (CEIDP'95), 4A-22, pp.290-293)
  
• High-field Dielectric Property of Polypropylene with Superposition of ac and dc field, T.Tokoro, M.Nagao and M.Kosaki
  (1995, Conference on Electrical Insulation and Dielectric Phenomena (CEIDP'95), 4B-8, pp.316-319)
  
• High-field AC Dissipation Current Waveforms of Nonpolar Polymeric Films Superposed by DC Ramp Voltage, K.Tohyama,T.Tokoro, et. al..
  (1995, 27th Symposium on Electrical Insulating Materials, C5, pp.81-84)
  
• Evaluation of High-field Dielectric Properties of Polymers with Superposition of AC and DC Field, T.Tokoro, K.Tohyama et. al..
  (1995, 5th International Conference on Conduction and Break down in Solid Dielectrics (ICSD'95), 7.2.5, pp.428-432)
  
• High-field Dielectric Properties of Polymeric Films Just after AC Field Application, T.Tokoro, M.Nagao and M.Kosaki
  (1994, 4th International Conference on Properties and Applications of Dielectric Materials (ICPADM-94), 6234, pp.686-689)
  
• Instantaneous Measurement of High-field Dielectric Properties of Polymeric Insulating Materials, T.Tokoro, M.Nagao and M.Kosaki
  (1993, 8th International Symposium on High Voltage Engineering (ISH'93), S22-01, pp.123-126)
  
• Measurement of Dielectric Properties of Polyethylene Film at Very High-Field Near Breakdown, T.Tokoro, M.Nagao and M.Kosaki
  (1993, Joint Conference of International Workshop on EI and IEEJ 25th Symposiumon EIM III-6, pp.127-130)
  
• New Method for Evaluating High-Field Dielectric Properties of Polymeric Insulating Materials, T.Tokoro, M.Nagao and M.Kosaki
  (1992, 4th International Conference on Conduction and Breakdown in Solid Dielectrics (ICSD'92), pp.338-342)
  
• High-field Dielectric Properties and ac Dissipation Current Waveforms of Polyethylene Film, T.Tokoro, M.Nagao and M.Kosaki
  (1992, IEEE Transactions on Electrical Insulation, vol.27, No.3, pp.482-487)