Armstrong, Westerman, Hattori, McLeland & Naughton
Covered endoscope system
 A covered endoscope system according to the present invention comprises a cover and a coverable endoscope to be inserted into the cover for use. Herein, an optical filter is mounted in the distal part of a cover abutting on the front of an observation optical system of the coverable endoscope. 
Olympus Optical Co., Ltd.
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Minoru Yoshio Tsutomu Hideo Hisao Yoshihiro Osamu Akira
Yamazaki Tashiro Ishiguro Ito Yabe Iida Tamada Suzuki