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Dive into the research topics where Naoki Ishii is active.

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Featured researches published by Naoki Ishii.


Polymer International | 2000

Cold crystallization of water in hydrated poly(2-methoxyethyl acrylate) (PMEA)

Masaru Tanaka; Tadahiro Motomura; Naoki Ishii; Kenichi Shimura; Makoto Onishi; Akira Mochizuki; Tatsuko Hatakeyama

The structure of water associated with poly(2-methoxyethyl acrylate) (PMEA), which is known to exhibit excellent blood compatibility, has been investigated using differential scanning calorimetry (DSC). The total equilibrium water content (EWC) of PMEA was 9.0u2009wt%. Water in the PMEA could be classified into three types: non-freezing, freezing-bound and free water. Cold crystallization of water was clearly observed at about −42u2009°C on heating when the water content was more than 3.0u2009wt%. Cold crystallization is attributed to the phase transition from the amorphous ice to the crystal ice in PMEA. The relative proportions of freezing-bound water at the EWC is 48u2009% of all the water in hydrated PMEA. n n© 2000 Society of Chemical Industry


Archive | 1995

Medical instruments that exhibit surface lubricity when wetted

Makoto Onishi; Kenichi Shimura; Naoki Ishii


Biomacromolecules | 2002

Study of Blood Compatibility with Poly(2-methoxyethyl acrylate). Relationship between Water Structure and Platelet Compatibility in Poly(2-methoxyethylacrylate-co-2-hydroxyethylmethacrylate)

Masaru Tanaka; Akira Mochizuki; Naoki Ishii; Tadahiro Motomura; Tatsuko Hatakeyama


Archive | 1994

Medical tool having lubricious surface in a wetted state and method for production thereof

Kenichi Shimura; Naoki Ishii; Makoto Onishi


Archive | 2000

β-titanium alloy wire, method for its production and medical instruments made by said β-titanium alloy wire

Naoki Ishii; Takashi Kaneko; Shin Sumimoto; Hideki Yamamoto; Ichiro Nagao


Archive | 1998

MONITORING DEVICE FOR SET BATTERY

Naoki Ishii; Susumu Ukita; 進 浮田; 直樹 石井


Archive | 2002

Method for producing beta-titanium alloy wire

Naoki Ishii; Takashi Kaneko; Shin Sumimoto; Hideki Yamamoto; Ichiro Nagao


Archive | 1994

Medical tool, with lubricative surface in wet state and manufacture therefor

Naoki Ishii; Masato Onishi; Kenichi Shimura; 誠人 大西; 賢一 志村; 直樹 石井


Archive | 2001

THIAZOLE COMPOUND AND HERBICIDAL COMPOSITION CONTAINING THE SAME

Tatsuya Akasaka; Naoki Ishii; Hiroshi Manabe; 寛 真鍋; 直樹 石井; 達也 赤坂


Archive | 2003

Navigation device, re-search program, and storage medium

Naoki Ishii; 直樹 石井

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Masayuki Yamamoto

National Institute of Information and Communications Technology

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