Daijiro Hirai

1H NMR Relaxation Study to Evaluate the Crystalline State of Active Pharmaceutical Ingredients Containing Solid Dosage Forms Using Time Domain NMR

Kotaro Okada, Daijiro Hirai, Shungo Kumada et al. · Journal of Pharmaceutical Sciences · 2018 · 36 citations

Relaxation Process, Pharmaceutical Science, Magnetic Resonance Spectroscopy +9

A comparative study of disintegration actions of various disintegrants using Kohonen's self-organizing maps

Yoshinori Onuki, Atsushi Kosugi, Masashi Hamaguchi et al. · Journal of Drug Delivery Science and Technology · 2017 · 33 citations

Human Migration, Culture, Labor Migration +9

Modeling of quantitative relationships between physicochemical properties of active pharmaceutical ingredients and tensile strength of tablets using a boosted tree

Yoshihiro Hayashi, Takuya Oishi, Kaede Shirotori et al. · Drug Development and Industrial Pharmacy · 2018 · 29 citations · Full text

<i>T</i><sub>2</sub> Relaxation Study to Evaluate the Crystalline State of Indomethacin Containing Solid Dispersions Using Time-Domain NMR

Kotaro Okada, Daijiro Hirai, Yoshihiro Hayashi et al. · Chemical and Pharmaceutical Bulletin · 2019 · 21 citations · Full text

Relaxation Process, Solid Dosage Forms, Pharmaceutical Science +20

A Novel Approach to Evaluate Amorphous-to-Crystalline Transformation of Active Pharmaceutical Ingredients in Solid Dispersion Using Time-Domain NMR

Kotaro Okada, Daijiro Hirai, Yoshihiro Hayashi et al. · Chemical and Pharmaceutical Bulletin · 2019 · 17 citations · Full text