Hironobu Sugaya

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We report on the controlled multiphase thin film growth in the Bi– Fe– O system. By varying the deposition oxygen pressure, the dominant phase formed in the film continuously changes from ferroelectric BiFeO 3 to a mixture of ␣-Fe 2 O 3 and ferromagnetic ␥-Fe 2 O 3. X-ray diffraction and high-resolution transmission electron microscopy have revealed that(More)
  • T. Harada, H. Sugaya, M. Maehara
  • 2008
We compared laparoscopy with other diagnostic methods (abdominal angiography, CT, US, etc.) for the diagnosis of focal hepatic lesions. The rate of correct diagnosis by laparoscopy combined with needle biopsy was 81 % (30 of 37 cases). Although the area of liver surface which is visible through laparoscopy is limited, this procedure is considered useful in(More)
  • Y. Sato, R. Hatano, +4 authors H. Arae
  • 2007
There were 100 cases (82.7%) of cholelithiasis and 21 cases (17.3%) of cholecystitis, a total of 121 cases who were admitted to our department of surgery and were performed operations for 8 years from 1963 through the end of 1970. A case (0.8%) of death by operation and 4 cases (3.4%) of re-operation were included in these cases. Investigations with(More)
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