Kabushiki Kaisha Toshiba

Fujinon Corporation

Fujifilm Corporation

Konica-minolta Holdings, Inc.

Srj Corporation

Tadashi Sekiguchi

Tetsuya Fujikura

Toshio Sakamoto

Wataru Ishikawa

Tamio Saito

Hiroshi Fujita

Masashi Honda

Hironori Yamamoto

Izumi Watanabe

Mitsunori Machida

Souhei Fukunishi

Masayuki Takano

Yuji Wada

Yoshinori Kadouno

Megumi Yoshinaga

Yumiko Okada

Tomoya Norinobu

Disclosed is an organic electroluminescence device which can be stably produced by a wet process and exhibits enhanced external quantum efficiency and reduced coating unevenness and a production method thereof. Specifically, disclosed is a method of producing the organic electroluminescence device comprising at least a layer, which is formed by a wet process comprising of coating a solution of an organic material dissolved in a solvent to form a liquid layer, followed by removal of the solvent by blowing air to form the layer, wherein the relative drying rate of the solvent to butyl acetate is from 1 to 1000, (based on the drying rate of butyl acetate being 100), the thickness of the formed liquid layer is from 1 to 100 &#x3bc;m, a air-blowing rate is from 0.1 to 5 m/s and the time between completion of coating and start of blowing is from 0 to 60 sec.

Organic electroluminescence device and production method thereof

The present invention provides a balloon controller for an endoscope apparatus having a fluid supply and drawing device which communicates with at least one of a balloon attached to an insertion portion of an endoscope and a balloon attached to an insertion assist implement for guiding the insertion portion when the insertion portion is inserted, and which supplies a fluid to each balloon or draws the fluid from the balloon, the balloon controller comprising: a leakage device provided in tube paths for communication between the balloons and the fluid supply and drawing device, the leakage device being capable of leaking the fluid.

Balloon controller for endoscopic apparatus

An electronic endoscope apparatus is provided and includes: a light source that illuminates a subject with white light; a color imaging device that takes an image of the subject illuminated with white light; and a spectral-image forming circuit that operates RGB three color image signals based on an output from the color imaging device and a matrix data to generate an spectral image signal representative of a spectral image in a color at a designated wavelength. The spectral-image forming circuit is adapted to generate spectral image signals representative of spectral images in respective colors at least three wavelengths different from one another.

Electronic endoscope apparatus

A balloon controller for an endoscope apparatus, which expands or shrinks a first balloon attached to an insertion portion of an endoscope by supplying fluid to the first balloon or drawing fluid from the first balloon, and which expands or shrinks a second balloon attached to an insertion assist implement for guiding the insertion portion when the insertion portion is inserted, by supplying fluid to the second balloon or drawing fluid from the second balloon, the balloon controller including a display device which displays an image expressing the states of expansion and shrinkage of the first balloon and the second balloon.

A balloon control apparatus includes a balloon, a flow rate adjustment section, a setting section and a control section. The balloon is attached to an insertion section of an endoscope and/or an insertion aid instrument for guiding insertion of the insertion section of the endoscope. The flow rate adjustment section adjusts an air supply flow rate to the balloon and/or an exhaust flow rate from the balloon. The setting section sets the air supply flow rate and/or the exhaust flow rate. The control section controls the flow rate adjustment section so that the air supply flow rate to the balloon and/or the exhaust flow rate from the balloon become the air supply flow rate and/or the exhaust flow rate set by the setting section.

Balloon control apparatus

A hand operation portion of an endoscope is held by an endoscope holder of a holding device, and an insertion auxiliary member is held by an auxiliary member holder. The endoscope holder and the auxiliary member holder are slidably supported along a guide rail on a stage, and linearly moved toward a mouth of a patient.

Holding device, endoscopic device, and operating method of endoscopic device

A balloon controller for an endoscope apparatus which enables an operator to correctly and immediately grasp circumstances relating to an abnormal condition at the time of occurrence of the abnormal condition. The balloon controller controls expansion and shrinkage of each of a first balloon attached to an insertion portion of an endoscope and a second balloon attached to an insertion assist implement, by supplying air to the balloon or drawing air from the balloon. Pressure indicating portions on which the values of pressures in the first and second balloons are displayed are provided in a front surface of a main body of the balloon controller. When an abnormal condition occurs, an error code and the pressure values are alternately displayed on the pressure indicating portions.

Balloon controller for endoscope apparatus

A solid-state image pickup device has a photosensitive chip and an array of microlenses arranged on the incident side of the photosensitive chip. A correction lens is arranged on the incident side of the microlens array to reduce incident angles of light entering the microlenses. The solid-state image pickup device may be incorporated in a head of an endoscope of an endoscopic apparatus to receive light from an optical system arranged in the head. The head includes a unit for changing paths of light to the microlenses to reduce incident angles of the light entering the microlenses.

Endoscope apparatus with lens for changing the incident angle of light

An endoscope system includes an endoscope section having a flexible pipe insertable into a body cavity. The flexible pipe is divided into a plurality of segments. Each segment has a mechanism, e.g. shape memory alloy, for varying the flexibility of that segment. A main frame unit has a flexibility control section for controlling the flexibility variation mechanisms to correspond to one of a plurality of flexibility control patterns stored in a database.

Variable flexibility endoscope system

A color correction device for an endoscope capable of performing color corrections in accordance with chromatic characteristics such as saturation and/or hue of image signals is disclosed. The device includes an unit that selects appropriate color corrections to be made in accordance with chromatic characteristics of image signals, and an unit that performs the selected color corrections. An endoscope incorporating such a device is also disclosed.

Color correction device for an endoscope

In an electronic endoscope apparatus, there are provided a brightness converter for converting brightness of a color image signal of a biological body under examination while the biological body is irradiated by monochromatic light; a plurality of image memories for storing a plurality of brightness-converted image signals; and a calculating circuit for calculating the plurality of brightness-converted image signals to obtain a concentration of hemoglobin of the biological body and an oxygen saturation of hemiglobin thereof. Then, the concentration of hemoglobin and oxygen saturation of the biological body are displayed as a color image.

Electronic endoscope apparatus capable of displaying hemoglobin

An endoscopic system irradiates an object to be inspected and applied with a fluorescent material with visible radiation to obtain a visible radiation image of the object and with excitation radiation to obtain a fluorescent image thereof. The images thus obtained being alternately inputted into a television camera and displayed simultaneously on a display unit according to outputs from the television camera. The endoscopic system comprises an emission switch for irradiating the object alternately with the visible radiation and the excitation radiation, a first frame memory for storing the visible radiation image from the television camera, a second frame memory for storing the fluorescent image from the television camera, an image signal switch for alternately inputting the images from the television camera into the first and second frame memories, an image processing and displaying unit for processing and displaying the images from the first and second frame memories, and a central controlling portion for synchronously controlling the emission switch and the image signal switch, readout operations of the first and second frame memories, and the image processing and displaying unit to simultaneously display both the images on the display unit.

Endoscopic system for producing fluorescent and visible images

A microchannel plate has a platelike photosensitive glass substrate and a plurality of microchannels formed separately from each other and extending across the thickness of the substrate. A secondary electron-emission surface is formed on an inner surface of each of the microchannels. Accelerating electrodes formed on two opposite sides of the photosensitive glass substrate, so as to be partially in electrical contact with the secondary-emission surface. The microchannels are formed by applying ultraviolet rays to the substrate through a mask and removing irradiated portions of the substrate by etching.

Growing community of inventors

Saitama, Japan

Tadashi Sekiguchi