Accès ouvert
2025
article
OpenAlex
Tetsuhiro Urashima, Yusaku Tanaka, Kota Imanishi, Sachika Kinoshita et autres
INTRODUCTION: Brain metastasis from esophageal cancer is rare. In particular, recurrent brain metastasis following multimodal treatment, such as preoperative chemotherapy and surgical resection, is extremely uncommon.We present a case of early brain metastasis from esophageal cancer despite achieving pathological complete response (pCR). …
jp
(code pays fourni par la source)
2022
article
OpenAlex
Jun Sakai, Hidetaka Andrew Ono, Kana Otsubo, Yukio Tsuura et autres
The patient was a 57-year-old woman. She was referred to our hospital because severe anemia. Upper gastrointestinal endoscopy revealed polyposis throughout the stomach and lobulated polyps in cardia, greater curve of middle body of the stomach, and angulus. Colonoscopy and small bowel …
jp
(code pays fourni par la source)
2020
article
OpenAlex
Kota Imanishi, Tokiyoshi Matsuda, Mutsumi Kimura
Carrier mobility in an amorphous metal-oxide semiconductor (AOS) thin-film transistor (TFT) was analyzed using the Hall effect. First, an amorphous Ga-Sn-O (a-GTO) TFT and that with four electrodes arranged in a square shape are fabricated.Next, a transistor characteristic of the a-GTO TFT …
jp
(code pays fourni par la source)
2018
conference-paper
OpenAlex
Kota Imanishi, Asuka Fukawa, Tokiyoshi Matsuda, Mutsumi Kimura
We investigated the Hall effect of the GTO thin film and the GTO thin film transistor (TFT). The Hall effect mobility in the GTO thin film was 1.21 cm2Ns, which was much smaller than the field effect mobility of the GTO TFT. …
jp
(code pays fourni par la source)
2018
conference-paper
OpenAlex
Yoku Ikeguchi, Kota Imanishi, Ryuki Nomura, Mutsumi Kimura et autres
A thermoelectric conversion element is a device for converting thermal energy into electric energy. Many thermoelectric materials are toxic and contain rare-metals. Thus we have evaluated thermoelectric effect of Ga-Sn-O (GTO) that is rare-metal free and less toxic. Moreover, how the annealing …
jp
(code pays fourni par la source)
2017
conference-paper
OpenAlex
Ryuki Nomura, Aska Fukawa, Kota Imanishi, Hiroki Fukushima et autres
We have evaluated magnetoresistance (MR)effect of a Ga-Sn-O (GTO) film deposited using mist chemical vapor deposition (CVD). It is found that the as-deposited film shows negative MR effect, whereas the annealed film shows positive MR effect. We assume that this phenomenon occurs …
jp
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2016
article
OpenAlex
Kota Imanishi, Asuka hukawa, Matsuda Tokiyosi, Mutsumi Kimura
2016
conference-paper
OpenAlex
Kota Imanishi, Asuka Fukawa, Tokiyoshi Matsuda, Mutsumi Kimura
We are researching Ga-Sn-O (GTO) thin film as a potential material for future semiconductor devices. In this study, we investigate the GTO thin film using Hall measurement. A GTO film is deposited using RF magnetron sputtering, and annealed using electric-furnace annealing in …
jp
(code pays fourni par la source)
2016
conference-paper
OpenAlex
Asuka Fukawa, Kota Imanishi, Shogo Miyamura, Tokiyoshi Matsuda et autres
We investigate MR effect of GTO thin-film devices. It is found positive and negative MR effects. Something dramatically changes in GTO thin-film devices. Moreover, it is suggested that the GTO thin-film devices with oxygen of high concentration indicate negative MR effect. This …
jp
(code pays fourni par la source)
2015
article
OpenAlex
Shogo Miyamura, Shiga Haruki, Kota Imanishi, Asuka Fukawa et autres
2015
article
OpenAlex
Shiga Haruki, Shogo Miyamura, Kota Imanishi, Hukawa Asuka et autres