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TOMISAWA Ren｜Shinshu University Researcher List

TOMISAWA Ren

Academic Assembly　School of Science and Technology　Institute of Textile Science and Technology

Faculty of Textile Science and Technology　Division of Textiles and Kansei Engineering　

Assistant Professor　

Researcher Information

Degree

  • 博士(工学), 信州大学

Research Keyword

    synthetic fibers, X-ray analysis, Higher-order structure, Meltblown nonwoven
Research activity information

Award

  • 2025
    The Society of Fiber Science and Technology Japan, 繊維学会奨励賞
    Strength development mechanism of polyester fibers estimated by quantitative analysis in oriented-induced crystallization process
    Ren Tomisawa

Paper

  • In situ analysis of hierarchal structure changes to the tensile breakage of　poly(ethylene terephthalate) fiber
    Ryohei Fuse, Yuki Tanimoto, Ren Tomisawa, KyoungHou Kim, Yutaka Ohkoshi, Kazuyuki Okada, Hiroo Katsuta, Keiichi Osaka
    Polymer, 332, 128558, 18 May 2025, Refereed電子ジャーナル
  • Fabrication of a polycarbonate/polypropylene fiber mix air filter using a melt-blowing apparatus with different nozzle diameters
    TOMISAWA Ren, SHIBATA Yuji, KIM KyoungHou, SATO Masashi, MEGURO Eiko
    Journal of Textile Engineering, 71(1), 1-8, 15 Feb. 2025, Refereed電子ジャーナル
  • Effects of drawing stress on the molecular-chain extension in fiber structure formation of poly(ethylene terephthalate)
    R. Tomisawa, T. Ikaga, K.H. Kim,Y. Ohkoshi, K. Okada,T. Kanaya, H. Katsuta
    Polymer, 312, 127605, 24 Oct. 2024, Refereed電子ジャーナル
  • Effects of poly(vinyl butyral)/poly(ethylene terephthalate) sheath-core composite fibers on the structure and tensile strength of a needlepunched nonwoven
    R. Tomisawa, T. Yoshida
    Journal of Textile Engineering, 70(5), 66-71, 17 Oct. 2024, Refereed電子ジャーナル
  • Thickness and Compression Behavior of a Nonwoven Produced by Melt‑Blowing a Polypropylene/Poly(ethylene terephthalate) Fiber Mix
    R. Tomisawa, Y. Ohkoshi, K.H. Kim
    Fibers and Polymers, 25, 3539-3548, 08 Aug. 2024, Refereed電子ジャーナル
  • Development of Surface-enhanced Raman Scattering Substrate Using Melt-blown Nonwoven Fabric Subjected to Electroless Ag Plating: A Basic Study
    Y. Tahara, J. Yamamoto, T. Nishiyama, R. Tomisawa, R. Takigawa
    Sensors and Materials, 36(4), 1305-1318, 09 Feb. 2024, Refereed電子ジャーナル
  • Polycarbonate/Polypropylene-conjugated Melt-blown Nonwovens: Thermal Stability and Performance as Li-ion Battery Separators
    R. Tomisawa, A. Makimura, K.H. Kim, Y. Ohkoshi
    Journal of Textile Engineering, 69(5), 71-77, Oct. 2023, Refereed電子ジャーナル
  • Tensile strength of polyester fiber estimated by molecular-chain extension prior to structure formation
    R. Tomisawa, M. Nagata, Y. Otsuka, T. Ikaga, K.H. Kim, Y. Ohkoshi, K. Okada, T. Kanaya, H. Katsuta
    SCIENTIFIC REPORTS, 13(1), 11759, Jul. 2023, Refereed電子ジャーナル
  • Fiber structure development of poly(ethylene terephthalate-co-isophthalate) copolymer
    R. Tomisawa, M. Okazaki, T. Ikaga, K. H. Kim, Y. Ohkoshi, K. Okada, T. Kabe, T. Kanaya, H. Katsuta, Y. Funatsu
    Polymer, 245, 124708, 04 Mar. 2022, Refereed電子ジャーナル
  • Effects of melt-spinning speed on structure development of polypropylene fiber after necking
    N. Koike, R. Tomisawa, T. Ikaga, K. H. Kim, Y. Ohkoshi, K. Okada, H. Masunaga, T. Kanaya, H. Katsuta, Y. Funatsu
    JOURNAL OF FIBER SCIENCE AND TECHNOLOGY, 76(5), 161-169, 20 May 2020, Refereed
  • Effects of dimensions and regularity on the mechanical properties of the smectic phase formed during orientation-induced crystallization of poly(ethylene terephthalate)
    R. Tomisawa, S. Oneda, T. Ikaga, K. H. Kim, Y. Ohkoshi, K. Okada, H. Masunaga, T. Kanaya, H. Katsuta, Y. Funatsu
    Polymer, 164, 163-173, 15 Feb. 2019, Refereed電子ジャーナル
  • Ultra-SAXS observation of fibril-size structure formation after the necking of poly(ethylene terephthalate) and poly(phenylene sulfide) fiber
    R. Tomisawa, T. o, T. Ikaga, K. H. Kim, Y. Ohkoshi, K. Okada, H. Masunaga, T. Kanaya, H. Katsuta, Y. Funatsu
    POLYMER JOURNAL, 51(2), 211-219, 09 Nov. 2018, Refereed電子ジャーナル
  • Effect of draw ratio on fiber structure development of polyethylene terephthalate
    R. Tomisawa, T. Ikaga, K. H. Kim, Y. Ohkoshi, K. Okada,H. Masunaga, T. Kanaya, M. Masuda, Y. Maeda
    Polymer, 116(s1), 357-366, 05 May 2017, Refereed電子ジャーナル
  • Effect of melt spinning conditions on the fiber structure development of polyethylene terephthalate
    R. Tomisawa, T. Ikaga, K. H. Kim, Y. Ohkoshi, K. Okada,H. Masunaga, T. Kanaya, M. Masuda, Y. Maeda
    Polymer, 116(s1), 367-377, 05 May 2017, Refereed電子ジャーナル
  • Effect of polycarbonate mixing on thermal shrinkage and thermal bonding of nonwoven polypropylene separator
    TOMISAWA Ren, MAKIMURA Akihiro, YOSHIDA Satoshi
    Journal of Textile Engineering, Refereed電子ジャーナル

Lectures, oral presentations, etc.

  • Fiber structure development of poly(ethylene terephthalate-co-isophthalate) copolymer
    R. Tomisawa, M. Okazaki, T. Ikaga, K. H. Kim, Y. Ohkoshi, K. Okada, T. Kabe, T. Kanaya, H. Katsuta, Y. Funatsu
    PPS37, 13 Apr. 2022
  • Ultra-SAXS observation of fibril-size structure formation after the necking of poly(ethylene terephthalate) and poly(phenylene sulfide) fiber
    R. Tomisawa, T. Ando, T. Ikaga, K. H. Kim, Y. Ohkoshi, K. Okada,　H. Masunaga, T. Kanaya, H. Katsuta, Y. Funatsu
    IPC2018, 06 Dec. 2018
  • Dimensions and stability of smectic phase formed on the structure development of poly(ethylene terephthalate) fiber
    R. Tomisawa, S. Oneda, T. Ikaga, K. H. Kim, Y. Ohkoshi, K. Okada, H. Masunaga, T. Kanaya, M. Masuda, Y. Maeda
    ATC14, 27 Jul. 2017