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Medicine

D-Index
90
Citations
31904
World Ranking
12150
National Ranking
356

Overview

Koichi Hirata is affiliated with Sapporo Medical University in Japan and specializes primarily in the fields of Materials Science and Engineering. Their research encompasses a number of interconnected domains, with a strong focus on materials chemistry and computational mechanics.

The main topics of their work include:

  • Ion-surface interactions and analysis
  • Diamond and carbon-based materials research
  • Integrated circuits and semiconductor failure analysis
  • Polymer nanocomposites and properties
  • Tribology and wear analysis
  • Natural fiber reinforced composites
  • Atomic and molecular physics

Within these areas, Hirata has contributed to understanding ultrafast phenomena and surface interactions, particularly using secondary ion mass spectrometry techniques and energetic cluster ion beams.

Selected recent publications demonstrate the range of their expertise:

  • "Structure-property relationship of low molecular weight 'liquid' polymers in blends of sulfur cured SSBR-rich compounds," 2020, Polymer Testing
  • "Experimental characterization of ultrafast phenomena of secondary-ion emission induced by nanoscale energy deposition processes of energetic C60 impacts," 2020, Journal of Applied Physics
  • "Secondary ion mass spectrometry using energetic cluster ion beams: Toward highly sensitive imaging mass spectrometry," 2020, Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms
  • "Intense emission of surface-derived secondary ions from shallow-angle impacts of energetic MeV C60 ions," 2022, Applied Physics Express
  • "Study on Aftertreatment of Methane-slip by Using Pd Methane Oxidation Catalyst," 2022, Marine Engineering

Frequent publication venues include:

  • Polymer Testing
  • Journal of Applied Physics
  • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms
  • Applied Physics Express
  • Marine Engineering

Collaborative research efforts feature several frequent co-authors, including:

  • K. Yamada
  • Yoshimi Hirano
  • Ayano Chiba
  • Yoichi Saitoh
  • Atsuya Chiba

These co-authorship patterns indicate active engagement in a multidisciplinary research environment focusing on both fundamental and applied aspects of materials and surface science.

Best Publications

  • Tokyo Guidelines 2018: diagnostic criteria and severity grading of acute cholecystitis (with videos).

    Masamichi Yokoe;Jiro Hata;Tadahiro Takada;Steven M. Strasberg

  • Tokyo Guidelines 2018: flowchart for the management of acute cholecystitis.

    Kohji Okamoto;Kenji Suzuki;Tadahiro Takada;Steven M. Strasberg

  • Carbohydrate mimicry between human ganglioside GM1 and Campylobacter jejuni lipooligosaccharide causes Guillain-Barre syndrome.

    Nobuhiro Yuki;Keiichiro Susuki;Michiaki Koga;Yukihiro Nishimoto

  • Definitions, pathophysiology, and epidemiology of acute cholangitis and cholecystitis: Tokyo Guidelines

    Yasutoshi Kimura;Tadahiro Takada;Yoshifumi Kawarada;Yuji Nimura

  • Diagnostic criteria and severity assessment of acute cholecystitis: Tokyo Guidelines

    Keita Wada;Tadahiro Takada;Yoshifumi Kawarada;Yuji Nimura

  • Japanese guidelines for the management of acute pancreatitis: Japanese Guidelines 2015.

    Masamichi Yokoe;Tadahiro Takada;Toshihiko Mayumi;Masahiro Yoshida

  • Anti-GQ1b IgG antibody syndrome: clinical and immunological range

    M Odaka;N Yuki;K Hirata

  • Upregulation of miR-196a and HOTAIR drive malignant character in gastrointestinal stromal tumors

    Takeshi Niinuma;Hiromu Suzuki;Masanori Nojima;Katsuhiko Nosho

  • Anti-GM1 antibodies cause complement-mediated disruption of sodium channel clusters in peripheral motor nerve fibers.

    Keiichiro Susuki;Matthew N. Rasband;Koujiro Tohyama;Katsura Koibuchi

  • JPN Guidelines for the management of acute pancreatitis: epidemiology, etiology, natural history, and outcome predictors in acute pancreatitis

    Miho Sekimoto;Tadahiro Takada;Yoshifumi Kawarada;Koichi Hirata

  • Tokyo Guidelines 2018 surgical management of acute cholecystitis: safe steps in laparoscopic cholecystectomy for acute cholecystitis (with videos)

    Go Wakabayashi;Yukio Iwashita;Taizo Hibi;Tadahiro Takada

  • TG13: Updated Tokyo Guidelines for the management of acute cholangitis and cholecystitis

    Tadahiro Takada;Steven M. Strasberg;Joseph S. Solomkin;Henry A. Pitt

  • Tokyo Guidelines 2018: antimicrobial therapy for acute cholangitis and cholecystitis.

    Harumi Gomi;Joseph S. Solomkin;David Schlossberg;Kohji Okamoto

  • Association of Fusobacterium species in pancreatic cancer tissues with molecular features and prognosis

    Kei Mitsuhashi;Katsuhiko Nosho;Yasutaka Sukawa;Yasutaka Matsunaga

  • Tokyo Guidelines 2018: initial management of acute biliary infection and flowchart for acute cholangitis

    Fumihiko Miura;Kohji Okamoto;Tadahiro Takada;Steven M. Strasberg

  • Frequent epigenetic inactivation of Wnt antagonist genes in breast cancer

    H Suzuki;M Toyota;M Toyota;H Caraway;E Gabrielson

  • Pharmacokinetic study of S-1, a novel oral fluorouracil antitumor drug.

    Koichi Hirata;Noboru Horikoshi;Keisuke Aiba;Minoru Okazaki

  • A genome-wide association study identifies genetic variants in the CDKN2BAS locus associated with endometriosis in Japanese

    Satoko Uno;Hitoshi Zembutsu;Akira Hirasawa;Atsushi Takahashi

  • Association of Fusobacterium nucleatum with clinical and molecular features in colorectal serrated pathway

    Miki Ito;Shinichi Kanno;Katsuhiko Nosho;Yasutaka Sukawa

  • Bickerstaff's brainstem encephalitis: clinical features of 62 cases and a subgroup associated with Guillain-Barre syndrome

    N Yuki;M Odaka;M Koga;T Takemi

Frequent Co-Authors

Noriyuki Sato
Noriyuki Sato Sapporo Medical University
Toshihiko Torigoe
Toshihiko Torigoe Sapporo Medical University
Nobuhiro Yuki
Nobuhiro Yuki National University of Singapore
Yoshihiko Hirohashi
Yoshihiko Hirohashi Sapporo Medical University
Kohzoh Imai
Kohzoh Imai University of Tokyo
Yasuhisa Shinomura
Yasuhisa Shinomura Sapporo Medical University
Hiromu Suzuki
Hiromu Suzuki Sapporo Medical University
Yusuke Nakamura
Yusuke Nakamura National Institutes of Biomedical Innovation, Health and Nutrition
Norimasa Sawada
Norimasa Sawada Sapporo Medical University
Hiroyuki Yamamoto
Hiroyuki Yamamoto St. Marianna University School of Medicine

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