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Featured researches published by Tetsuya Utsui.


Diagnostic and Therapeutic Endoscopy | 1999

Development of the Autofluorescence Endoscope Imaging System

Rensuke Adachi; Tetsuya Utsui; Koichi Furusawa

It is a well known fact that light emitted at a specific wavelength induces fluorescence in the human body. This kind of fluorescence is called autofluorescence. The application of autofluorescence diagnosis, on the other hand, is a more complicated system designed to detect faint autofluorescence inherent in tissues/cells. We have adopted this autofluorescence diagnosis method and developed a new autofluorescence endoscope imaging system called the SAFE-1000. Normal mucosa emitting autofluorescence appears green on the monitor, while abnormal mucosa shows a dark image caused by the lack of autofluorescence.


Archive | 2002

Fiber bundle and endoscope apparatus

Koichi Furusawa; Masaru Eguchi; Tetsuya Utsui; Tetsuya Nakamura; Ryo Ozawa; Shinsuke Okada


Archive | 1994

Bendable portion of endoscope

Toru Chiba; Kazuhiro Naganuma; Rensuke Adachi; Tetsuya Utsui


Archive | 1996

Biological fluorescence diagnostic apparatus with distinct pickup cameras

Tetsuya Utsui; Hiroshi Sano; Rensuke Adachi


Archive | 1996

Fluorescence endoscope having an exciting light filter and a fluorescence filter

Tetsuya Utsui; Rensuke Adachi; Hirohisa Ueda; Hiroshi Sano


Archive | 2000

Endoscope system and illuminating device for the endoscope

Tetsuya Utsui; Koichi Furusawa


Archive | 1999

Video endoscopic apparatus for fluorescent diagnosis

Koichi Furusawa; Tetsuya Utsui


Archive | 1996

Biological fluorescence diagnosis device for medical use

Tetsuya Utsui; Hiroshi Sano; Rensuke Adachi


Archive | 2001

Optical system for the light source device of a video endoscope system

Tetsuya Utsui


Archive | 2001

Light source and electronic endoscope

Tetsuya Utsui; 哲也 宇津井

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