Otawara
Kentaro Otawara, Fukushima-Ken JP
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20080214842 | Process For Purifying Hydroxycarboxylic Acid, Process For Producing Cyclic Ester, and Process For Producing Polyhydroxycarboxylic Acid - Disclosed is a process for purifying a hydroxycarboxylic acid, comprising: a crystallization step of subjecting a hydroxycarboxylic acid aqueous solution to crystallization for purification, a separation step of separating a hydroxycarboxylic acid crystal from a mother liquid, and a washing step of washing the hydroxycarboxylic acid crystal for further purification with a washing liquid, wherein the washing liquid is a hydroxycarboxylic acid aqueous solution. The purified or refined hydroxycarboxylic acid obtained through the above process is suitably used as a starting material for production of a polyhydroxycarboxylic acid. The above process is suitably included in a process for producing a cyclic ester and a process for producing a polyhydroxycarboxylic acid. | 09-04-2008 |
Kentaro Otawara, Tokyo JP
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20150259320 | METHOD FOR PRODUCING GLYCOLIDE, WHICH IS PROVIDED WITH RECTIFICATION STEP BY MEANS OF GAS-LIQUID COUNTERCURRENT CONTACT, AND METHOD FOR PURIFYING CRUDE GLYCOLIDE - A method for producing glycolide provided with: step (1) wherein a GAO composition, which preferably contains a high-boiling-point organic solvent or a solubilizing agent, is supplied into a reactor and heated to a temperature at which a depolymerization reaction of the GAO occurs; step (2) wherein the heating is continued to subject the GAO to the depolymerization reaction, thereby producing glycolide; step (3) wherein glycolide is distilled out of the reactor; step (4) wherein the distillate is introduced into a rectifier and is rectified by means of gas-liquid countercurrent contact; and step (5) wherein glycolide is recovered. A method for purifying crude glycolide provided with: step (i) wherein a crude glycolide composition, which preferably contains a high-boiling-point organic solvent or a solubilizing agent, is supplied into a reactor and heated so that glycolicde is distilled; step (ii) wherein the distillate is introduced into a rectifier and is rectified by means of gas-liquid countercurrent contact; and step (iii) wherein glycolide is recovered. A glycolide producing apparatus and a crude glycolide purifying apparatus, each of which is provided with a reactor and a rectifier. | 09-17-2015 |
Masahiro Otawara, Kiryu-Shi JP
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20130106232 | WINDING STRUCTURE FOR A RECTANGULAR WIRE | 05-02-2013 |
Masayuki Otawara, Yokohama JP
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20090079873 | APPARATUS FOR AND METHOD OF PROCESSING IMAGE SIGNAL AND DISPLAY APPARATUS - Provided are an apparatus for and a method of processing an image signal, a program, and a display apparatus. The apparatus includes: a sub frame generating unit outputting an input signal a plurality of times in one frame period and generating a plurality of sub frames in the one frame period; a correlation judging unit judging a correlation between a current frame which is represented by the input image signal for every sub frame and a preceding frame for every corresponding pixel; and a frame distributing unit adjusting a gain of an image signal corresponding to each pixel for every sub frame on the basis of the correlation judged by the correlation judging unit, and outputting the image signal adjusted for every sub frame in a period corresponding to each of the sub frames. | 03-26-2009 |
20100002148 | IMAGE SIGNAL PROCESSING APPARATUS, IMAGE SIGNAL PROCESSING METHOD, COMPUTER PROGRAM, AND DISPLAY DEVICE - An image signal processing apparatus and method of controlling the light emission state of each pixel in a display device are provided. The image signal processing apparatus includes a correlation determination unit which determines a correlation between a current frame and a previous frame, and outputs a correlation signal of a signal level according to a determination result; a light emission time setting unit which outputs a light emission time control signal that defines a light emission time in one frame period, based on the correlation signal; an adjustment value setting unit which outputs an adjustment value that adjusts a gain of the image signal, based on the correlation signal; and a gain adjustment unit which adjusts the gain of the image signal based on the adjustment value and outputs the image signal of which the gain is adjusted. The light emission intensity is uniform regardless of the determination result. | 01-07-2010 |
20100026732 | APPARATUS FOR PROCESSING IMAGE SIGNAL, PROGRAM, AND APPARATUS FOR DISPLAYING IMAGE SIGNAL - Provided are an apparatus and method for processing an image signal. The apparatus includes a first correction value derivation unit deriving a first correction value for correcting an input image signal for each pixel of a line in a horizontal direction based on the input image signal, a second correction derivation unit deriving a second correction value for correcting the input image signal for each pixel of a line in a vertical direction based on the input image signal, a third correction value derivation unit deriving a third correction value for correcting the input image signal for each pixel forming a display screen which displays an image, based on the first correction value and the second correction value, and a signal correction unit correcting the input image signal based on the third correction value. | 02-04-2010 |
20110018892 | METHOD, DEVICE, AND PROGRAM FOR PROCESSING IMAGE AND IMAGE DISPLAY DEVICE - Provided are image signal processing devices, image signal processing methods, programs and display devices for improving the quality of an image. The image signal processing device includes a first color space converting unit for outputting hue signals, saturation signals, and first luminance signals with respect to each of a plurality of pixels based on the input image signals; a margin value calculating unit for calculating margin values for the hues based on the corresponding hue signals; a control value set up unit for setting up control values controlling the corresponding first luminance signals based on the corresponding saturation signals and the corresponding margin values; a brightness adjusting unit for adjusting brightnesses of the first luminance signals based on the corresponding control values and outputting second luminance signals with adjusted brightnesses. | 01-27-2011 |
Takashi Otawara, Hachioji-Shi, Tokyo JP
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20090124856 | Endoscope Insertion Portion - An endoscope insertion portion of the invention has a distal end portion, and includes first image pickup means for obtaining a normal light observation image; second image pickup means for obtaining a special light observation image; a first objective optical system for condensing first photographing light incident on the first image pickup means, the first objective optical system being located in the distal end portion; a second objective optical system for condensing second photographing light incident on the second image pickup means, the second objective optical system being located in the distal end portion; and a duct for spouting out liquid toward a diseased part in a body cavity, the duct having an aperture portion provided on the distal end portion, wherein the aperture portion of the duct is located at a position nearer to the second objective optical system than the first objective optical system, on the distal end portion. Thus is achieved an endoscope insertion portion that improves user operatability for spouting out liquid from an aperture portion of a forward water-feeding channel toward a desired diseased part. | 05-14-2009 |
Takashi Otawara, Tokyo JP
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20120078041 | ENDOSCOPE - An endoscope includes: a distal end opening of a treatment instrument insertion channel opened at a side surface of a distal end portion; a treatment instrument elevator base that is provided at a position facing the distal end opening in the treatment instrument insertion channel and leads a distal end of a treatment instrument protruding from the distal end opening, to a desired position; a first wall portion along the insertion direction of the distal end opening; and a second wall portion at a proximal end side of the insertion direction of the distal end opening and provided with a groove in which a part of the treatment instrument elevator base is fitted when the treatment instrument elevator base is raised, and as the treatment instrument elevator base is raised, a guide wire protruding from the distal end opening is releasably engaged by contacting the treatment instrument elevator base, the first wall portion, and a surface constituting the groove of the second wall portion. | 03-29-2012 |
20130150666 | ENDOSCOPE - An endoscope of the invention includes: an insertion portion including a bending portion bendable in an up/down (U-D) direction and a left/right (L-R) direction, and a flexible tube portion connected to a rear end of the bending portion; rigid long members inserted in the insertion portion; and a soft long member inserted in the insertion portion, in which the respective long members are dispersively disposed such that axial centers of the respective long members are respectively disposed in four inner regions sectionalized by projecting, in an longitudinal axis direction, a rotational axis at the time that the bending portion is bent in an up/down direction and a rotational axis at the time that the bending portion is bent in a left/right direction. | 06-13-2013 |