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Mamoru Kaneko, Yasuhiro Ueda, Sakae Takehana, Masaya Yoshihara, Masahiko Iida, Naruto Shinkai, Kazunari Nakamura, Nobuhiko Washizuka, Yoshinao Oaki, Katsuya Suzuki: Fluorescent endoscope apparatus. Olympus Optical, Armstrong Westerman Hattori McLeland & Naughton, May 12, 1998: US05749830 (185 worldwide citation)

A fluorescent endoscope apparatus having: an endoscope that irradiates a subject portion to be observed with light transmitted through a light transmission device to obtain an object image of the subject portion to be observed; a normal observation light generating device for emitting normal light f ...


2
Mamoru Kaneko, Kuniaki Kami, Masakazu Gotanda, Shuichi Takayam, Ichiro Nakamura, Kazunari Nakamura, Eiichi Fuse, Susumu Takahashi, Yoshihiro Kosaka, Hiromasa Suzuki: Examined body interior information observing apparatus by using photo-pulses controlling gains for depths. Olympus Optical, Armstrong Westerman Hattori McLeland & Naughton, April 26, 1994: US05305759 (181 worldwide citation)

A photo-pulse from a photo-pulse generating apparatus is branched, where one branch is radiated to an examined body and the reflected light reflected within the examined body is delayed in time in proportion to the depth from the surface of the examined body and is led to a time-analyzing reflected ...


3
Katsuichi Imaizumi, Kazunari Nakamura: Fluorescent endoscope system enabling simultaneous normal light observation and fluorescence observation in infrared spectrum. Olympus Optical, Ostrolenk Faber Gerb & Soffen, September 25, 2001: US06293911 (172 worldwide citation)

Excitation light for normal light observation with wavelengths in the visible spectrum, which is output from a lamp, and excitation light with wavelengths in the infrared spectrum for exciting a fluorescent substance characteristic of being accumulated readily in a lesion are irradiated simultaneous ...


4
Kazunari Nakamura, Kei Takasugi: Endoscope system with a plurality of synchronized light source apparatuses. Olympus Optical, Armstrong Westerman Hattori McLeland Naughton, February 16, 1993: US05187572 (141 worldwide citation)

An electronic endoscope is provided with a photoelectrically converting solid state imaging device and a light guide transmitting an illuminating light. A video signal processing circuit processes signals for the solid state imaging device. The electronic endoscope, the light guide and the video sig ...


5
Kazunari Nakamura, Yutaka Takahashi: Endoscope apparatus for processing a picture image of an object based on a selected wavelength range. Olympus Optical, Armstrong Nikaido Marmelstein Kubovcik & Murray, March 19, 1991: US05001556 (129 worldwide citation)

An endoscope apparatus whereby the observing wavelength range can be selected in response to an object to be observed has a light source part emitting a light illuminating the object. An endoscope body has an elongated insertable part having an observing window and illuminating window in the tip par ...


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Keiichi Hiyama, Takao Tsuruoka, Kazunari Nakamura, Yutaka Konomura, Masahide Kanno, Shinichiro Hattori: Endoscope image data compressing apparatus. Olympus Optical, Armstrong Westerman Hattori McLeland & Naughton, May 11, 1993: US05209220 (123 worldwide citation)

This endoscope image data compressing apparatus comprises a plurality of image compressing apparatus not equivalent to each other for compressing input endoscope image data and outputting the compressed data and a selecting apparatus for selecting the compressed data output from at least one of the ...


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Keiichi Hiyama, Takao Tsuruoka, Kazunari Nakamura, Yutaka Konomura, Masahide Kanno, Shinichiro Hattori: Method of compressing endoscope image data based on image characteristics. Olympus Optical, Armstrong Westerman Hattori McLeland & Naughton, January 10, 1995: US05379757 (105 worldwide citation)

An endoscope image data compressing apparatus comprises a plurality of image compressing apparatus not equivalent to each other for compressing input endoscope image data and outputting the compressed data and a selecting apparatus for selecting the compressed data output from at least one of the im ...


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Takao Tsuruoka, Kazunari Nakamura: Endoscope image processing apparatus. Olympus Optical, Armstrong Westerman Hattori McLeland & Naughton, May 7, 1996: US05515449 (88 worldwide citation)

The endoscope image processing apparatus includes a processing apparatus for image-processing as predetermined at least one image signal and a discriminating apparatus for discriminating regions ineffective to image-processing by the processing apparatus or to the result of the image-processing from ...


9
Kazunari Nakamura, Toshihiko Hagiwara, Akira Takano: Endoscope apparatus. Olympus Optical, Armstrong Nikaido Marmelstein Kubovcik & Murray, September 4, 1990: US04953539 (83 worldwide citation)

An endoscope apparatus has an illuminating device for applying at least infrared illuminating light to the interior of an organic body across the organic tissue of the body, an elongated insert portion to be inserted into the body, and an image pickup device having a light-receiving portion provided ...


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Kei Takasugi, Kazunari Nakamura: Image processing apparatus, endoscope image sensing and processing apparatus, and image processing method for performing different displays depending upon subject quantity. Olympus Optical, Armstrong Westerman Hattori McLeland & Naughton, April 30, 1996: US05512940 (79 worldwide citation)

An endoscope image sensing and processing apparatus uses the level of brightness of G and B signals at position (i, j) generated by subjecting an image of a subject picked up by a CCD to a signal process to detect the hemoglobin quantity IHb (i, j), discriminates whether or not the hemoglobin quanti ...