Fujitsu Corporation

Olympus Corporation

Hitachi-lg Data Storage, Inc.

Daiichi Sankyo Company, Limited

Jds Uniphase Corporation

Hosiden Corporation

Sumco Corporation

Sharp Corporation

Nec Corporation

Showa Denko K.k.

Stanley Electric Co., Ltd

Olympus Medical Systems Corporation

Kyushu University

Hitachi Consumer Electronics Co., Ltd.

Lumentum Operations LLC

Koji Matsumoto

Makoto Yamamoto

Sunao Takatori

Ryohei Kumagai

Ken Tamanoi

Satoshi Watanabe

Seiji Hamaie

Shinichi Mihara

Toshio Mikiya

Keisuke Ichikawa

Keigo Matsuo

Sumio Kuroda

Tsutomu Tanaka

Takeshi Honda

Toshiro Okamura

Takehiro Yoshida

Tsutomu Inoue

Yoshiaki Yamauchi

Kenichi Arai

Masanobu Miyao

Ikuo Nishida

Koichi Tezuka

Akihiro Inomata

Masanori Abe

Mitsuteru Inoue

Hiroyuki Kubo

Toshio Sugimoto

Hiroshi Nakamura

Takahiro Sato

Toshiaki Ono

Yuji Nakamura

Takayuki Baba

Toshiaki Suzuki

Masahiro Inoue

Keiji Shono

Hidenori Namiki

Shigeo Yamanoi

Motonobu Mihara

Kanato Adachi

Kazuaki Murayama

Yasunobu Iga

Takuya Kamimura

Hideki Nagata

Yosuke Ishizuka

Tohru Fujimaki

Shingo Hamaguchi

Miyozo Maeda

Takeshi Morikawa

Sho Shinji

Tetsuhiro Oka

Jun Taguchi

Takahiro Katagiri

Yuichi Ochiai

Masaharu Ninomiya

Hideyuki Nagamine

Antony Ajan

Haruhiko Izumi

Masaharu Moritsugu

Wataru Yamagishi

Masahiko Nakamae

Tsuyoshi Soneda

Toshitaka Fujii

Mayuko Akiu

Takeshi Yamazaki

Kazuyuki Ozaki

Akihiko Endo

Kazumasa Aoki

Toshio Kaneko

Masao Yoshida

Mitsuru Namiki

Koichi Iida

Shohei Kobayashi

Mamoru Miyachi

Hiroyuki Kitagawa

Ikuya Tagawa

Ryosuke Ito

Hiroyasu Kawano

Yukio Hirai

Yuzuru Yamakage

Etsurou Morita

Takanori Aimono

Yuki Yamaguchi

Hiroshi Amano

Kanto Miyazaki

Hiroshi Yamagishi

Sojiro Kirihara

Narihiro Toda

Yoshinobu Aoyagi

Yoshio Honda

Yasuyuki Shibata

Hirofumi Eto

Junichiro Uda

Osamu Nagata

Rieko Takano

Shinsuke Takatsuka

Yutaka Uno

Kazuto Fujiwara

A light source device includes light sources, a light output unit, optical filters, temperature sensors detecting current temperatures of the sources, light quantity sensors detecting current light quantities of light beams before traveling through the filters, a storage, and a processor. The storage stores first correlation information between the temperatures of the sources and spectral information and second correlation information between the spectral information and light quantity of light at the unit. The processor is configured to calculate a variation in the spectral information based on each current temperature and the first information, calculate a variation in the light quantity of the light at the unit caused by a change in the spectral information based on the variation in the spectral information and the second information, and calculate a light-quantity correction amount for each of the sources based on the variation in the light quantity and the current light quantity.

Light source device, observation system, and color-balance correction method

An endoscope of the present invention includes a first positive lens configured to concentrate light emitted from a light source onto an internal focus point and to emit the concentrated light to irradiate an object. The focus point is located on an incidence side from an intermediate point on an optical axis of the first positive lens.

Endoscope

An endoscope system includes: an illumination portion that includes a light source and that is configured to radiate an illumination light beam having a spatially nonuniform intensity distribution onto an imaging subject; a first imager and a second imager disposed at positions that are different from each other and configured to respectively acquire a first illumination image and a second illumination image of the imaging subject being illuminated with the illumination light beam; and at least one processor configured to: create a first deep-layer image and a first surface-layer image from the first illumination image and create a second deep-layer image and a second surface-layer image from the second illumination image; and create a combined deep-layer image by combining the first deep-layer image and the second deep-layer image on the basis of pixel values of the first and second surface-layer images.

Endoscope system

A light treatment system includes: a probe configured to be inserted into a bladder, the probe including an optical fiber configured to propagate light, and a light emitter that is provided at a distal end of the optical fiber, the light emitter being configured to emit the light; and a balloon catheter into which the probe is inserted, the balloon catheter being configured to be inserted into the bladder, the balloon catheter including a distal end portion that is to be dilated in the bladder, a wall configured to divide inside of the distal end portion into two regions, and a reflector configured to reflect the light emitted by the light emitter, the reflector being provided on a surface of the wall, the surface facing a region of the two regions, the region being where the light emitter is positioned.

Light treatment system and balloon catheter

A light treatment system includes: a probe configured to be inserted into a body cavity, the probe including an optical fiber configured to propagate light, and a light emitter that is provided at a distal end of the optical fiber, the emitter being configured to emit the light; a balloon catheter into which the probe is inserted, the balloon catheter including a distal end portion that is to be inserted into the body cavity and that is to be dilated by being supplied with a liquid including air bubbles; and an air bubble generator configured to generate the air bubbles to be included in the liquid and change a property of the air bubbles.

Light treatment system and light treatment method

An endoscope system of the present invention includes: a first illumination unit that emits first illumination light for imaging two sets of image information about a subject at different depths; a second illumination unit that emits second illumination light having a wide band covering a visible band from a position different from the position of the first illumination light; an imaging unit that images a first illumination image and a second illumination image of the subject that is illuminated with the first illumination light and the second illumination light; a separation processing unit that separates the two sets of image information from the first illumination image; and a separated-image generating unit that generates two separated images by processing the second illumination image using the two sets of image information.

Endoscope system having a first light source for imaging a subject at different depths and a second light source having a wide band visible band

An endoscope system according to the present invention includes: a second illumination unit that emits second illumination light; a first illumination unit that emits, simultaneously with the second illumination light, first illumination light that is light of a different wavelength band from the second illumination light and is for imaging two sets of image information about a subject different depths; an imaging unit that simultaneously images a first illumination image of the subject illuminated with the first illumination light and a second illumination image of the subject illuminated with the second illumination light; a separation processing unit that separates the two sets of image information from the first illumination image; and a separated-image creating unit that processes the second illumination image using the two sets of image information to create separated images.

An endoscope system according to the present invention includes: an illumination unit that radiates illumination light onto a subject, the illumination light having a spatially non-uniform intensity distribution including a light section and a dark section in a beam cross section orthogonal to an optical axis; an imaging unit that images an illumination image of the subject irradiated with the illumination light; and a separation processor that generates two separate images from the illumination image. Among intensity values of pixels within the illumination image respectively corresponding to the light section, the dark section, and a section having intermediate intensity between the light section and the dark section, the separation processor generates the two separate images based on at least two of the intensity values.

An object of the present invention is to find a novel pharmaceutical that has an excellent tryptophanase inhibitory effect, and suppresses worsening of renal function to preserve the kidney by reducing production of indoxyl sulfate in the blood. The present invention provides a pharmaceutical composition containing, as an active ingredient, a compound represented by the following formula, or a pharmacologically acceptable salt thereof: 

Urea derivative

An object of the present invention is to find a novel pharmaceutical that has an excellent tryptophanase inhibitory effect, and suppresses worsening of renal function to preserve the kidney by reducing production of indoxyl sulfate in the blood. Provided is a pharmaceutical composition containing, as an active ingredient, a compound represented by formula (I) or a pharmacologically acceptable salt thereof. In the formula (I), Rand Rare the same or different, and represent a C-Calkyl group, a halogeno C-Calkyl group or a C-Ccycloalkyl group; n represents 0, 1 or 2; each X represents a C-Calkyl group, a C-Ccycloalkyl group, a halogen atom or the like; and Y represents a hydrogen atom, a C-Calkoxy group, a C-Ccycloalkoxy group or a halogeno C-Calkoxy group.

Amide derivative

An interference fringe generating optical system generates an interference fringe, and a magnifying optical system magnifies the interference fringe and projects the interference fringe on an object surface. The magnifying optical system includes an incident-side lens group on the side where a light beam forming the interference fringe is incident and an exit-side lens group on the side where the light beam is emitted and the interference fringe is projected towards the object surface. The expression f1/f2&#x3e;3 holds, where f1 is the focal length of the incident-side lens group, and f2 is the focal length of the exit-side lens group. The incident-side and exit-side lens groups each have a positive refractive power. The expression xd/(f1+f2)&#x3c;2 is satisfied, where xd is the distance from the exit-side principal point of the incident-side lens group to the incident-side principal point of the exit-side lens group.

Interference fringe projection optical system and shape measurement apparatus

A manufacturing method for a group III nitride semiconductor substrate is provided with a first step of forming a second group III nitride semiconductor layer on a substrate; a second step of forming a protective layer on the second group III nitride semiconductor layer; a third step of selectively forming pits on dislocation portions of the second group III nitride semiconductor layer by gas-phase etching applied to the protective layer and the second group III nitride semiconductor layer; and a fourth step of forming a third group III nitride semiconductor layer on the second group III nitride semiconductor layer and/or the remaining protective layer so as to allow the pits to remain.

Manufacturing method for group III nitride semiconductor substrate and group III nitride semiconductor substrate

It is intended to provide a novel bisphosphonic acid compound or a salt thereof which shows a remarkable inhibitory effect on ectopic calcification, and a pharmaceutical composition comprising the same. The present invention provides a bisphosphonic acid compound represented by the following formula (1) or a pharmaceutically acceptable salt thereof: whereinrepresents a single bond or a double bond; A represents a saturated cyclic hydrocarbon or a saturated heterocyclic ring comprising a sulfur atom or an oxygen atom; and Rand Reach independently represent an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an aryloxy group, a haloalkoxy group, a haloalkyl group, a halogen atom or a hydrogen atom.

Bisphosphonic acid compound

A measurement probe is configured to be detachably connected to a bio-optical measurement apparatus and includes: an illuminating fiber configured to irradiate body tissues with illumination light; light receiving fibers configured to receive return light of the illumination light reflected and/or scattered from the body tissues; an optical element configured to transmit the illumination light and the return light and to keep distances between the body tissues and distal ends of the illuminating fiber and the light receiving fibers, constant; and a contact detecting fiber configured to receive the return light to detect contact between a distal end face of the optical element and the body tissues, and detect the return light at a detection region on the distal end face through which the illumination light and the return light pass. The detection region is located outside an illumination region of the illuminating fiber.

Measurement probe and bio-optical measurement system with contact detection

Provided is a hydrogen concentration measuring device capable of measuring with high accuracy a hydrogen concentration over an extensive range by a simple configuration. The device includes: a sensor chip which detects the electric resistance of a sensing film; an optical measurement unit which detects the transmitted light intensity of the film; and a controller. The controller performs measurement processing such that a hydrogen concentration in the gas atmosphere is measured based on the detected electric resistance in a first measurement range and based on the detected transmitted light intensity in a second measurement range and is determined so as to reduce a difference between the hydrogen concentration based on the detected electric resistance and the hydrogen concentration based on the detected transmitted light intensity in the overlap of the first measurement range and the second measurement range.

Hydrogen concentration measuring device

Growing community of inventors

Tokyo, Japan

Koji Matsumoto