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  1. M. Imamura, H. Asada, R. Matsuda, D. Tashima, J. Kitagawa, “Spin-thermoelectric Generation of Insulator-based Generators Incorporating a Single crystal Yttrium Iron Garnet Film in Relation to Domain Magnetization Processes”, IEEJ Transactions on Electrical and Electronic Engineering, Vol.19, No.2, pp.183–186, December 2023
  2. T. Ryu, D. Tashima, “Electrical Characteristics of Super Capacitors Using KOH Gel”, Journal of Mechanics Engineering and Automation, Vol.13, No.4, pp.111-116, December 2023
  3. D. Tashima, T. Kashio, T. Eguchi, S. Kumagai, T. Tsubota, John D. W. Madden, “Recycling Marine Plastic Waste to Energy Storage Devices”, Materials Letters: X, Vol.18, No.100193/1-100193/4, June 2023
  4. M. Imamura, H. Asada, Y. Kano, R. Matsuda, D. Tashima, J. Kitagawa, “Underlying Mechanism of the Driving Force for Generating Spin Currents Thermally in a Ferrimagnetic Insulator Due to a Temperature Gradient”, AIP Advances, Vol.13, No.2, February 2023
  5. T. Ryu, D. Tashima, T. Kawabata, “Characteristics of electric double-layer capacitors based on solid polymer electrolyte composed of sodium polyacrylate”, Journal of Physics: Conference Series, No.2368, pp.012002/1-012002/8, November 2022
  6. D. A. Khuong, K. T. Trinh, Y. Nakaoka, T. Tsubota, D. Tashima, H. N. Nguyen, D. Tanaka,“The investigation of activated carbon by K2CO3 activation: Micropores- and macropores-dominated structure”, Chemosphere, Vol.299, pp.134365/1-134365/11, July 2022
  7. M. Imamura, H. Asada, R. Nishimura, Y. Kano, D. Tashima, and J. Kitagawa, “Characteristics of spin-thermoelectric generators enhanced by incorporating liquid phase epitaxial Bi-substituted YIG films as a ferrimagnetic insulator”, Journal of Magnetism and Magnetic Materials, Vol.550, pp.169081/1-169081/6, May 2022
  8. M. Imamura, H. Asada, R. Nishimura, D. Tashima, and J. Kitagawa, “Thermoelectric Characteristics of STE Generator Fabricated from LPE Bi- and Al-Substituted YIG Films”, IEEE Transactions on Magnetics, Vol.58, No.1, January 2022
  9. M. Imamura, H. Asada, R. Nishimura, K. Yamaguchi, D. Tashima, and J. Kitagawa, “Enhancement of the spin Seebeck effect owing to bismuth substitution in thermoelectric generators fabricated from LPE Bi-substituted YIG films,” AIP Advances, Vol.11, pp.035143/1-035143/5, March 2021
  10. T. Omori, M. Nakanishi and D. Tashima, “High-Temperature Degradation Tests on Electric Double-Layer Capacitors: The Effect of Residual Voltage on Degradation”, Materials, Vol.14, No.6, pp.1520/1-1520/10, March 2021
  11. T. Omori, M. Nakanishi, D. Tashima, “Modeling of Equivalent Circuit Analysis of Degraded Electric Double-Layer Capacitors”, Materials, Vol.14, No.2, pp.435/1-435/8, January 2021
  12. D. Tashima, M. Hirano, S. Kitazaki, T. Eguchi, S. Kumagai, “Solution-plasma treatment of activated carbon from shochu distillery waste for electrochemical capacitors”, Materials Chemistry and Physics, Vol.254, 123523, November 2020
  13. M. Imamura, D. Tashima, J. Kitagawa, H. Asada, “Magneto-optical Properties of Wider Gap Magnetic Semiconductor ZnMnTe and ZnMnSe Films Prepared by MBE”, Journal of Electronic Science and Technology, Vol.18, No.3, pp.100056/1-100056/12, September 2020
  14. D. Tashima, M. Hirano, S. Kitazaki, T. Eguchi, S. Kumagai, “Oxygen-plasma surface treatment of an electrode sheet using carbon from Japanese distilled liquor waste for double-layer capacitors”, Electrochem, Vol.1, No.3, pp.322-428, September 2020
  15. V. Vediyappan, G. Raghavi, C. S. Ming, R. Madhu, M. Sivakumar, D. Tashima, C. T. Hung, S. B. Liu, “Nitrogen and High Oxygen-containing Metal-free Porous Carbon Nanosheets for Supercapacitor and Oxygen Reduction Reaction Applications”, Nano Express, Vol.1, No.1, 010036, June 2020
  16. T. Eguchi, D. Tashima, M. Fukuma, S. Kumagai, “Activated carbon derived from Japanese distilled liquor waste: Application as the electrode active material of electric double-layer capacitors”, Journal of Cleaner Production, Vol.259, 120822 June 2020
  17. T. Eguchi, Y. Kanamoto, M. Tomioka, D. Tashima, S. Kumagai, “Effect of Ball Milling on the Electrochemical Performance of Activated Carbon with a Very High Specific Surface Area”, Batteries, Vol.6, No.2, 22, April 2020
  18. D. Kalderis, S. Tsuchiya, K. Phillipou, P. Paschalidou, I. Pashalidis, D. Tashima, T. Tsubota, “Utilization of pine tree biochar produced by flame-curtain pyrolysis in two non-agricultural applications”, Bioresource Technology Reports, Vol.9, 100384, February 2020
  19. S. Kumagai, Y. Abe, T. Saito, T. Eguchi, M. Tomioka, M. Kabir, D. Tashima, “Lithium-ion capacitor using rice husk-derived cathode and anode active materials adapted to uncontrolled full-pre-lithiation”, Journal of Power Sources, Vol.437, No.226924, October 2019
  20. M. Imamura, H. Asada, D. Tashima, J. Kitagawa, “Spin-thermoelectric voltage in longitudinal SSE elements incorporating LPE YIG films and polycrystalline YIG slabs with an ultrathin Pt layer”,Electrical Engineering in Japan, Vol.208, No.3-4, pp.10-20, September 2019
  21. T. Fujita, D. Tashima, M. Fukuma S. Kumagai, “Nitrogen doping by urea decomposition for making activated carbon derived from shochu waste”, International Journal of Engineering Science and Innovative Technology, Vol.8, No.1, pp.36-43, January 2019
  22. T. Sakoda, N. Hayashi, D. Tashima, “Creeping Flashover Phenomenon on ZnO Element Used for Surge Arrester”, Journal of Electrostatics, Vol.94, pp.80-84. August 2018
  23. D. Tashima, T. Eguchi, T. Kumamoto, M. Fukuma, S. Kumagai, “Electric double-layer capacitance of carbon electrodes with high surface areas derived from shochu waste”, International Journal of Engineering Science and Innovative Technology, Vol.6, No.6, pp.59-68, November 2017
  24. S. Kumagai, M. Hatomi, D. Tashima, “Electrochemical performance of microporous and mesoporous activated carbons in neat and diluted 1-ethyl-3-methylimidazolium tetrafluoroborate”, Journal of Power Sources, Vol.343, pp.303-315, March 2017
  25. H. Yoshitama, D. Tashima, T. Sakoda, N. Hayashi, M. Yuhara, T. Utsunomiya, “Chemical Analysis of Casual Elements for Deterioration of Cylindrical EDLC”, Electronics and Communications in Japan, Vol.99, No.12, pp.36-43, November 2016
  26. S. Kumagai, D. Tashima, “Electrochemical performance of activated carbons prepared from rice husk in different types of non-aqueous electrolytes”, Biomass and Bioenergy, Vol.83, pp.216-223, December 2015
  27. S. Kumagai, K. Mukaiyachi, D. Tashima, “Rate and cycle performances of supercapacitors with different electrode thickness using non-aqueous electrolyte”, Journal of Energy Storage, Vol.3, pp.10-17, October 2015
  28. D. Tashima, Y. Asano, S.Tomomatsu, Y. Sugimoto, “Thermal efficiency of small scale biogas plant for bio-methane production”, Environmental Engineering and Management Journal, Vol.14, No.4, pp.745-749, April 2015
  29. D. Tashima, Y. Urakawa, Y. Suenaga, and J. D. W. Madden, “Optimization of mixture ratio of electrolyte for reducing activation resistance of proton exchange membrane fuel cell”, Process Safety and Environmental Protection, Vol.92, No.6, pp.879-887, November 2014
  30. N. Kamikuri, Y. Hamasuna, D. Tashima, M. Fukuma, S. Kumagai, and J. D. W. Madden, “Low-cost activated carbon materials produced from used coffee grounds for electric double-layer capacitors”, International Journal of Engineering Science and Innovative Technology, Vol.3, No.4, pp.492-501, July 2014
  31. D. Tashima, Y. Hamasuna, D. Mishima, S. Kumagai, and J. D. W. Madden, “Microporous activated carbons from used coffee grounds for application to electric double-layer capacitors”, IEEJ Transactions on Electrical and Electronic Engineering, Vol.9, No.4, pp.343-350, July 2014
  32. S. Kumagai, M. Sato, D. Tashima,“Electrical double-layer capacitance of micro- and mesoporous activated carbon prepared from rice husk and beet sugar”, Electrochimica Acta, Vol.114, No.30, pp.617-626, December 2013
  33. D. Tashima, T. Kishita, S. Maeno and Y. Nagasawa, “Mesoporous graphitized Ketjenblack as conductive nanofiller for supercapacitors”, Materials Letters, Vol.110, pp.105-107, November 2013
  34. T. Kato, T. Miyake, D. Tashima, T. Sakoda, M. Otsubo, M. Hombu, “Maximum output power control using short-circuit current and open-circuit voltage of a solar cell”, Japanese Journal of Applied Physics, Vol.51, No.10, 10NF08, October 2012
  35. D. Tashima, H. Yoshitama, T. Sakoda, A.Okazaki, T. Kawaji, “Characteristics of powdered activated carbon treated with dielectric barrier discharge for electric double-layer capacitors”, Electrochimica Acta, Vol.77, pp.198-203, August 2012
  36. D. Tashima, E. Yamamoto, N. Kai, D. Fujikawa, G. Sakai, M. Otsubo and T. Kijima, “Double layer capacitance of high surface area carbon nanospheres derived from resorcinol-formaldehyde polymers”, Carbon, Vol.49, No.14, pp.4848-4857, November 2011
  37. D. Tashima, H. Yoshitama, M. Otsubo, S. Maeno and Y. Nagasawa, “Evaluation of electric double layer capacitor using Ketjenblack as conductive nanofiller”, Electrochimica Acta, Vol.56, No.24, pp.8941-8946, October 2011
  38. Y. Sugimoto, D. Tashima and Y. Asano, “A simple method to harness DC (direct current) electrical energy generated by bacterial activity”, Process Safety and Environmental Protection, Vol.89, No.5, pp.323-326, September 2011
  39. D. Tashima, Y. Sakaguchi, H. Hidaka and M. Otsubo, “Basic examination of membrane electrode assembly of proton exchange membrane fuel cell considering heat deterioration”, Chemical Engineering Research and Design, Vol.89, No.7, pp.1088-1093, July 2011
  40. D. Tashima and M. Otsubo, “Relationship between space charge and effective pore size of nanoporous electrode in electric double-layer capacitor”, Particuology, Vol.9, No.1, pp.91-94, February 2011
  41. M. Takaoka, K. Inohata, T. Miyake, D. Tashima, M. Otsubo and T. Bouno, “Development of trouble diagnosis technology of 50-W-Grade micro wind turbine generator”, Electrical Engineering in Japan, Vol.174, No.1, pp.33-39, January 2011
  42. D. Tashima, Y. Sakaguchi, H. Hidaka and M. Otsubo, “Estimating the optimal number of membrane electrode assembly catalyst layers for proton exchange membrane fuel cell by considering open circuit voltage and polarization”, Materials Chemistry and Physics, Vol.122, No.2-3, pp.544-547, May 2010
  43. D. Tashima, M. Taniguchi, D. Fujikawa, T. Kijima and M. Otsubo, “Performance of electric double layer capacitors using nanocarbons produced from nanoparticles of resorcinol-formaldehyde polymers”, Materials Chemistry and Physics, Vol.115, No.1, pp.69-73, May 2009
  44. D. Tashima, A. Sakamoto, M. Taniguchi, T. Sakoda and M. Otsubo, “Surface modification of carbon electrode using argon plasma”, Vacuum, Vol.83, No.3, pp.695-698, October 2008
  45. D. Tashima, A. Sakamoto, M. Taniguchi, T. Sakoda and M. Otsubo, “Electrochemical Properties of Modified Carbon Electrode for Double Layer Capacitor”, Surface and Coatings Technology, Vol.202, No.22-23, pp.5560-5563, August 2008
  46. D. Tashima, K. Kurosawatsu, M. Taniguchi, M. Uota, and M. Otsubo, “Basic characteristics of electric double layer capacitor mixing Ketjen Black as conductive filler”, Electrical Engineering in Japan, Vol.165, No.1, pp.1-8, January 2008
  47. D. Tashima, K. Kurosawatsu, Y. M. Sung, M. Otsubo and C. Honda, “Surface modification of nano porous materials for electric double layer capacitors application”, Materials chemistry and physics, Vol.103, No.1, pp.158-161, May 2007
  48. D. Tashima, K. Kurosawatsu, Y. M. Sung, M. Otsubo and C. Honda, “Surface modification of carbon electrode for electric double layer capacitors”, Plasma Processes and Polymers, Vol.4, No.S1, pp.S502-S506, April 2007
  49. D. Tashima, K. Kurosawatsu, Y. M. Sung, M. Otsubo and C. Honda, “Spatio-temporal charge behavior in electric double layer capacitors observed by pulsed electro acoustic method”, Electrochimica Acta, Vol.52, No.15, pp.5071-5075, April 2007
  50. D. Tashima, K. Kurosawatsu, M. Uota, T. Karashima, Y. M. Sung, M. Otsubo and C. Honda, “Space charge distributions of an electric double layer capacitor with carbon nanotube electrode”, Thin Solid Film, Vol.515, No.9, pp.4234-4239, March 2007
  51. D. Tashima, K. Kurosawatsu, M. Uota, T. Karashima, Y. M. Sung, M. Otsubo and C. Honda, “Space charge behaviors of electric double layer capacitor with nanocomposite electrode”, Surface and Coatings Technology, Vol.201, No.9-11, pp.5392-5395, February 2007