Patent application number | Description | Published |
20140333113 | VEHICLE SEAT SUPPORTING DEVICE - To reinforce, with a reinforcing member, a foot bracket which supports a seat on a vehicle body floor, and to suppress increase in a size of the foot bracket due to use of the reinforcing member, left and right end portions of the reinforcing member for reinforcing the foot bracket are fixed to the foot bracket, the foot bracket fixed on the vehicle body floor and supporting a seat supporting part of the seat. An intermediate portion of the reinforcing member, which is a main part thereof, is situated within a projection plane in an up-down direction of the foot bracket. A straight portion of the reinforcing member corresponding to a fixing portion for fixing the foot bracket to the vehicle body floor is disposed on the seat supporting part side of the foot bracket. | 11-13-2014 |
20150191112 | LID DEVICE AND SEAT DEVICE PROVIDED THEREWITH - The present invention relates to a lid device and a seat device provided therewith. This lid device, which constitutes a seat device, comprises: a lid that is capable of closing an opening formed in a seat back; and an operation part that is slidably arranged in a recessed part formed in the lid. Guide rails are formed on the respective side surfaces of the recessed part. The operation part includes: slide parts that engage with the respective guide rails; and reception parts capable of contacting the bottom surface of the recessed part. | 07-09-2015 |
20150197174 | ATTACHMENT STRUCTURE FOR MEMBERS AND VEHICLE SEAT - A first member (back board | 07-16-2015 |
20150203016 | CUP HOLDER - A cup holder comprises a lid body in which an upper lid and a lower lid are connected by an engagement mechanism. The engagement mechanism includes: a claw part that protrudes from the upper lid; an arch part that protrudes from the lower lid and engages with the claw part; and a protrusion wall that is provided contiguously to the upper lid or the lower lid and restricts the arch part from collapsing in a state where the claw part and the arch part are engaged. | 07-23-2015 |
20150306983 | OPERATING LEVER, SEAT DEVICE AND OPERATING SECTION STRUCTURE - An operating lever includes a fixing portion, a handle, and an interface. The fixing portion is to be fixed to a power transmitter. The handle is to be gripped by a user. The interface connects the fixing portion and the handle. The fixing portion, the handle, and the interface are integrally formed. The interface has a weak portion at a portion other than the outer periphery of the interface, the weak portion being weaker than other portions. | 10-29-2015 |
Patent application number | Description | Published |
20150181127 | IMAGE PROCESSING DEVICE, IMAGING DEVICE, IMAGE PROCESSING METHOD, AND COMPUTER READABLE MEDIUM - There is provided an image processing device, includes: a first display image generation section that generates a first display image; a second display image generation section that generates a second display image for use in focus-checking; an acquisition section that acquires color data of the first display image; a determination section that, based on the color data, determines as a display color for the second display image a color with different color characteristics from color characteristics of the first display image; and a display controller that displays on a display section the first display image generated by the first display image generation section, and displays on the display section the second display image generated by the second display image generation section within a display region of the first display image. | 06-25-2015 |
20150181194 | IMAGE PROCESSING DEVICE, IMAGING DEVICE, IMAGE PROCESSING METHOD, AND COMPUTER READABLE MEDIUM - There is provided an image processing device, includes: an expansion amount decision section that, for each target pixel for image processing in a first image and a second image, decides on an expansion amount of parallax according to parallax; a coefficient decision section that, for each target pixel for image processing in the first image and the second image, decides on a parallax conversion coefficient for converting the parallax into expanded parallax based on the expansion amount decided by the expansion amount decision section; an image processing section that performs processing on the target pixels to expand parallax based on the parallax conversion coefficient decided by the coefficient decision section; a generation section that generates a first display image based on an image signal, and generates a second display image for use in focus verification based on the first image and the second image. | 06-25-2015 |
20150181196 | IMAGE PROCESSING DEVICE, IMAGING DEVICE, IMAGE PROCESSING METHOD, AND COMPUTER READABLE MEDIUM - An image processing device includes: a coefficient decision section that, for each of target pixels in a first image and a second image, decides on a parallax conversion coefficient to convert a parallax computed by a parallax computation section into a parallax visually confirmable that the first image and the second image are within the first parallax range in cases determined by a first determination section to be within the first parallax range, and that decides on a parallax conversion coefficient to convert the parallax into a parallax visually confirmable that the first image and the second image are outside the first parallax range in cases determined by the first determination section to be outside the first parallax range; and an image processing section that performs image processing on the target pixels based on the parallax conversion coefficient decided by the coefficient decision section. | 06-25-2015 |
20150304546 | IMAGE PROCESSING DEVICE, IMAGING DEVICE, IMAGE PROCESSING METHOD AND COMPUTER READABLE MEDIUM - A sensitivity acquisition section that acquires sensitivity to light incident through the first region of pixels in a pupil division direction of the first pixel group, and acquires sensitivity to light incident through the second region of pixels in the pupil division direction of the second pixel group; a correction section that derives linearly approximated sensitivity correction coefficients for each of the first image and the second image based on the sensitivities, and corrects the brightness of the first and second images based on the derived sensitivity correction coefficients; and a generation section that generates a first display image based on an image signal output from the image pick-up device, and generates a second display image for use in focus verification based on the first and second images corrected by the correction section. | 10-22-2015 |
20160028940 | IMAGE PROCESSING DEVICE, IMAGING DEVICE, IMAGE PROCESSING METHOD AND COMPUTER READABLE MEDIUM - A generation section generates a first display image based on an image signal output from an image pick-up device, and generates a second display image for use in focus verification based on a first and second image. A correction section corrects gradation of the second display image according to gradation correction information determined based on at least one of a spatial frequency characteristic in the second display image or maxima values in a histogram of pixel values in the second display image. | 01-28-2016 |
Patent application number | Description | Published |
20130235167 | IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD AND STORAGE MEDIUM - An image processing device includes: a size acquisition section that acquires a first display size of an output target display device that performs 3D display; a storage section that stores respective parallax amounts adjusted by a user during performing 3D display of 3D display image data respectively on display devices of different types, and stores respective second display sizes of the display devices; a parallax amount computation section that computes a parallax amount for the first display size based on a relationship between the parallax amounts and the second display sizes stored in the storage section; and an output section that outputs to the output target display device the computed parallax amount and the 3D display image data. | 09-12-2013 |
20140198188 | IMAGE PROCESSING DEVICE, METHOD AND RECORDING MEDIUM, STEREOSCOPIC IMAGE CAPTURE DEVICE, PORTABLE ELECTRONIC APPARATUS, PRINTER, AND STEREOSCOPIC IMAGE PLAYER DEVICE - An image processing method includes: acquiring a first image and second image with a parallax, calculating a parallax indicating a shift amount of a corresponding pixel of the second image with respect to each pixel of the first image, deciding an image processing coefficient to perform edge emphasis or edge correction based on the parallax with respect to every image processing target pixel of the first image and the second image, and performing image processing on the first image and the second image using the image processing coefficient. | 07-17-2014 |
20150015677 | IMAGE PROCESSING DEVICE AND METHOD, AND IMAGING DEVICE - An image processing method according to the present invention acquires a first image and second image that are picked up through a single image-taking optical system, that are images after a pupil division, and that have a parallax to each other, and then performs a filtering process for each pixel of the first and second images, using first and second transform filters that correspond to the parallax for the pixel and that are of first and second transform filter groups to be respectively applied to the first and second images for the transform into third and fourth images in which the parallax amount and blur amount of the first and second images have been altered. | 01-15-2015 |
20150054926 | IMAGE PROCESSING DEVICE AND METHOD, AND IMAGE CAPTURING DEVICE - An image processing device comprising: an image acquisition device; a parallax acquisition device; a first data transform device; an operation processing device; and a second data transform device transforming third frequency component data and fourth frequency component data respectively corresponding to the third image and the fourth image calculated by the operation processing device into data on a real space and for respectively selecting pixels at positions corresponding to the target pixels as one pixel of the third image and one pixel of the fourth image. | 02-26-2015 |
20150070539 | IMAGE CAPTURE DEVICE AND IMAGE DISPLAY METHOD - An image capture element includes phase difference pixel groups (first and second pixel groups) corresponding to first and second images with a phase difference according to a focus shift, includes a third pixel group corresponding to a normal third image, outputs a first image and a second image with Bayer arrays from the first and second pixel groups, and outputs a third image with the same color array as a RAW image from the third pixel group. A color split image is generated based on the first and second images acquired from the image capture element, a color image for display is generated based on the third image, and the color split image is synthesized with part of the generated color image for display to thereby display a live-view image in which the split image is synthesized. | 03-12-2015 |
20150070551 | IMAGING DEVICE - An imaging device comprising an imaging optical system, a lens movement mechanism, an imaging element, a first interpolation device, a second interpolation devices, a photographic image generation device, a split image generation device using a first image formed by the outputs of the first phase difference pixels and the first interpolation pixels and a second image formed by the outputs of the second phase difference pixels and the second interpolation pixels to generate a split image, and a display device displaying the photographic image generated by the photographic image generation device, the display device displaying the split image generated by the split image generation device in a display area of the photographic image. | 03-12-2015 |
20150156405 | IMAGING DEVICE AND METHOD FOR CONTROLLING SAME - An imaging device comprising a photographing lens, an imaging element; a first interpolation device, a second interpolation device, a focusing confirmation image generation device configured to at least generate a first image and a second image respectively from the pixel values of the first and second interpolation pixels calculated by the first and second interpolation device and generating a focusing confirmation image based on the first and second images, and a display device configured to display the focusing confirmation image generated by the focusing confirmation image generation device. | 06-04-2015 |
20150215545 | IMAGING DEVICE AND IMAGE DISPLAY METHOD - An imaging device includes a creation device configured to create a first display image, a second display image, and a third display image to be used for assisting the focusing confirmation from first and second images based on first and second image signals outputted from the first and second pixel groups, a display device, and a display control device, where the creation device creates the second display image including first and second display ranges in which the first image is used in the first display range and the second image is used in the second display range, and the creation device creates the third display image in which an image used in at least one of the first and second display ranges is different from the second display image. | 07-30-2015 |
20150381883 | IMAGE PROCESSING DEVICE, IMAGING DEVICE, PROGRAM, AND IMAGE PROCESSING METHOD - Provided are an image processing device, an imaging device, and an image processing method which can perform focusing control using an intuitive operation. First and second images based on image signals that are output from an imaging element including first and second pixel groups on which an object image that passes through first and second regions of an imaging lens and is pupil-divided is formed are combined and displayed on a display unit having a touch panel. It is detected whether an operation of selecting the first or the second image on the display image is performed. It is detected whether a moving operation in a direction intersecting a division direction is performed. When the selection operation and the moving operation are sequentially detected, control is performed such that a focus lens is moved in an optical axis direction of the focus lens in response to the moving operation. | 12-31-2015 |
Patent application number | Description | Published |
20140070909 | ELECTRIC MAGNET DEVICE AND SWITCH PROVIDED THEREWITH - An aspect of the present invention provides an electric magnet device, in which a smooth movement of an armature is ensured and, even if a vibration or an impact is applied, an attraction state between a yoke and the armature is maintained to prevent a malfunction, and a switch provided therewith, where the electric magnet device includes: a coil adapted to insert through an armature and a yoke so as to attract surfaces of the yoke and the armature, which are opposed to each other, to receive a voltage, to excite for separating the surfaces of the yoke and the armature; the armature disposed on one end side of the coil; and the yoke disposed on the other end side of the coil and adapted to oscillate, such that an oscillation angle of the yoke is greater than that of the armature. | 03-13-2014 |
20140251778 | SWITCH - A space where a member is disposed is ensured in a central portion without changing dimensions of an appearance. In a push-button switch, a movable contact portion is disposed while bent in an outer peripheral space between an insertion pipe and sidewalls constituting a quadratic-prism lower case, and the sidewall closest to a position where a projected terminal portion is disposed differs from the sidewall closest to a position where an abutment portion is disposed. | 09-11-2014 |
Patent application number | Description | Published |
20160053309 | SET OF PRIMERS AND PROBES TO BE USED FOR IDENTIFICATION OF GENE POLYMORPHISM AND USE THEREOF - By establishing a simple method for extracting a nucleic acid from a human specimen, and using the LAMP method, which is an isothermal gene amplification method showing superior quickness and convenience, with a concept of measurement different from the conventional ones, there is established a test method including steps up to detection with a measurement apparatus. There is provided a method for detecting a target site, which is an LAMP method using four kinds of primers, FIP, F3 primer, BIP, and B3 primer, which are designed on the basis of six regions of a template polynucleotide, F1 region, F2 region, F3 region, B1 region, B2 region, and B3 region, wherein: the template polynucleotide contains the target site, the four kinds of primers are designed so that the target site exists between the F1 region and the F2 region, or between the B1 region and the B2 region; a loop primer designed on the basis of a region between the F1 region and the F2 region or between the B1 region and the B2 region on the side on which the target site exists, and an oligonucleotide probe that can associate with a region including the target site are used, the loop primer and the probe are designed so that the 5′ end of the loop primer and the 3′ end of the probe associate with the template polynucleotide at positions close to each other, one of the loop primer and the probe is modified with a fluorescent molecule around the 5′ end in the case of the loop primer or the 3′ end in the case of the probe, and the other is modified with a quenching molecule. | 02-25-2016 |
Patent application number | Description | Published |
20130106430 | BATTERY PACK VOLTAGE DETECTION DEVICE | 05-02-2013 |
20130162213 | VOLTAGE EQUALIZER FOR BATTERY PACK - A voltage equalizer for a battery pack includes equalization switches provided corresponding to respective battery blocks that construct the battery pack, an equalization controlling unit, and an equalization diagnostic unit. The equalization diagnostic unit obtains an equalization control signal outputted from the equalization controlling unit, and an equalization detection signal detected at connection points of the equalization switches. Then, the equalization diagnostic unit compares the equalization control signal and the equalization detection signal, and diagnoses whether or not equalization processing in each of the battery blocks is executed in conformity based on a result of the comparison. For example, the equalization diagnostic unit determines that the equalization processing is conformity when the equalization control signal and the equalization detection signal coincide with each other, and that the equalization processing is nonconformity when both of the signals do not coincide with each other. | 06-27-2013 |
20150162759 | Voltage Detection Device and Equalization Device - A voltage detection device for detecting a voltage across the both ends of each of plural unit batteries which are connected to each other in series, includes lowpass filters which are connected to the respective unit batteries, a first voltage detector detects a voltage across the both ends of each of the unit batteries that is supplied via the corresponding lowpass filter, a second voltage detector which detects a voltage across the both ends of each of the unit batteries that is supplied without passage through the corresponding lowpass filter, and a failure detector which detects whether the lowpass filter is in failure by comparing detection value detected by the first voltage detector with a detection value detected by the second voltage detector. | 06-11-2015 |
Patent application number | Description | Published |
20140084220 | PI-ELECTRON CONJUGATED BLOCK COPOLYMER AND PHOTOELECTRIC CONVERSION ELEMENT - Provided is a conjugated block copolymer that is capable of morphology control and that can achieve superior conversion efficiency. A π-electron conjugated block copolymer contiguously or non-contiguously bonding polymer block (A) involving a monomer unit having in a portion of a chemical structure at least one heteroaryl skeleton selected from a thiophene, a fluorine, a carbazole, a dibenzosilole and a dibenzogermole; and a polymer block (B) involving a monomer unit similarly having at least one heteroaryl skeleton; wherein the polymer block (A) comprises a homopolymer block of a monomer unit having a substituent R | 03-27-2014 |
20140124710 | BLOCK COPOLYMER AND PHOTOELECTRIC CONVERSION ELEMENT - Provided are: a conjugated block copolymer capable of increasing the amount of optical absorption by a photoelectric conversion active layer and controlling the morphology thereof and capable of achieving excellent photoelectric conversion efficiency; and a photoelectric conversion element comprising a composition including an electron accepting material using this kind of conjugated block polymer. | 05-08-2014 |
20140166942 | BLOCK COPOLYMER AND PHOTOELECTRIC CONVERSION ELEMENT - Provide are: a conjugated block copolymer capable of increasing the amount of optical absorption by a photoelectric conversion active layer and controlling the morphology thereof and capable of achieving excellent photoelectric conversion efficiency; and a photoelectric conversion element comprising a composition including an electron accepting material and this kind of conjugated block polymer. A π-electron conjugated block copolymer comprising: a polymer block (A) which involving a monomer unit having at least one heteroaryl skeleton selected from the group consisting of a fused π-conjugated skeleton, a fluorene, a carbazole, a dibenzosilole and a dibenzogermole containing at least one thiophene ring in a part of a chemical structure thereof; and a polymer block (B) involving a monomer unit of a thiophene-2,5-diyl group having a substituent at least at a 3-position thereof. | 06-19-2014 |
Patent application number | Description | Published |
20160023358 | ROBOT - A robot includes a turnable base, a lower arm, an upper arm, first and second spaces, and first and second routing members. The turnable base is coupled to a base fixed to an installation surface, and is turnable about a first axis. The lower arm includes a first base end coupled to the turnable base and rotatable about a second axis approximately orthogonal to the first axis. The upper arm includes a second base end coupled to the lower arm and rotatable about a third axis approximately parallel to the second axis. The first and second spaces are disposed in the lower arm, and face each other and extend in a length direction of the lower arm. The first and second routing members are respectively routed in the first and second spaces, and each include at least two bent portions bent in the first and second spaces. | 01-28-2016 |
20160023359 | ROBOT JOINT MECHANISM AND ROBOT - A robot joint mechanism includes a fixed base, a turnable portion, a first routing member, and a second routing member. The fixed base has a base bottom surface and a side wall. The base bottom surface and the side wall define an inner space. The turnable portion is disposed in the inner space and turnable about a vertical axis approximately perpendicular to the base bottom surface. The first routing member includes a first bent portion bent in a first bending direction along a bottom surface of the turnable portion and routed between the turnable portion and the side wall. The second routing member is routed through a position inner than the first bent portion, and includes a second bent portion bent in a second bending direction different from the first bending direction. | 01-28-2016 |
20160023360 | ROBOT - A robot includes a turnable base, a lower arm, an upper arm, a space, and a routing member. The turnable base is coupled to a base fixed to an installation surface. The turnable base is turnable about a first axis. The lower arm has a first base end coupled to the turnable base and rotatable about a second axis approximately orthogonal to the first axis. The upper arm has a second base end coupled to the lower arm and rotatable about a third axis approximately parallel to the second axis. The space is disposed in the lower arm and extends in a length direction of the lower arm. The routing member is routed in the space and has at least two bent portions bent in the space. | 01-28-2016 |
Patent application number | Description | Published |
20130203254 | POLISHING COMPOSITION AND POLISHING METHOD - A polishing composition contains a water-soluble polymer, a polishing accelerator, and an oxidizing agent. The water-soluble polymer is a polyamide-polyamine polymer having an amine value of 150 mg KOH/1 g·solid or greater. | 08-08-2013 |
20140242798 | POLISHING COMPOSITION - A polishing composition of the present invention is used for polishing an object containing a phase-change alloy and is characterized by containing an ionic additive. Examples of the ionic additive include a cationic surfactant, an anionic surfactant, an amphoteric surfactant, and a cationic water-soluble polymer. | 08-28-2014 |
20140251950 | POLISHING COMPOSITION - A polishing composition of the present invention is used for polishing an object containing a phase-change alloy and is characterized by containing ammonium ions (NH | 09-11-2014 |
20150152290 | POLISHING COMPOSITION - A polishing composition is used to polish a polishing subject having a phase change alloy. The polishing composition includes abrasive grains and a brittle film formation agent. The brittle film formation agent is at least one or more selected from a saturated monocarboxylic acid and an organophosphorus compound. | 06-04-2015 |
20150232705 | POLISHING COMPOSITION - To provide a polishing composition, in which a high polishing rate for a barrier layer and an insulation film can sufficiently be maintained, a polishing rate of a low dielectric material can sufficiently be suppressed, and aggregation of abrasive grains can be prevented. The invention is a polishing composition to be used for an application of polishing a polishing object having a barrier layer, a metal wiring layer, and an insulation film, comprising an oxidizing agent, and a nonionic compound having a weight average molecular weight of 1,000 or less. | 08-20-2015 |
Patent application number | Description | Published |
20140116872 | METHOD FOR PRODUCING 1, 4-BUTANEDIOL - An object of the present invention is to provide an industrially advantageous production method of 1,4BG, ensuring that generation of THF in the crude 1,4BG can be also suppressed and at the same time, the concentration of 2-(4-hydroxybutoxy)-tetrahydrofuran can be reduced. The present invention relates to a method for producing 1,4-butanediol, comprising heating crude 1,4-butanediol containing from 0.01 to 0.5 wt % of 2-(4-hydroxybutoxy)-tetrahydrofuran and from 1 to 25 wt % of water at 80° C. or more in the presence of an amine to obtain purified 1,4-butanediol. | 05-01-2014 |
20140121390 | METHOD FOR PRODUCING TETRAHYDROFURAN - The present invention relates to a method for producing tetrahydrofuran comprising: feeding raw material 1,4-butanediol containing gamma butyrolactone to a reaction tank, and performing a dehydration cyclization reaction in the presence of a homogeneous acid catalyst having a pKa of 4 or less and being dissolvable in 1,4-butanediol to produce tetrahydrofuran, wherein a gas containing tetrahydrofuran, gamma butyrolactone and water in the reaction tank is introduced into a heat exchanger and when obtaining a condensate from the outlet of the heat exchanger, the ratio of the concentration of gamma butyrolactone in the condensate based on the concentration of gamma butyrolactone in the raw material 1,4-butanediol is from 20 to 100%. | 05-01-2014 |
20140135511 | METHOD FOR PRODUCING HYDRIDE USING UNSATURATED COMPOUND HAVING CARBON NUMBER OF 4 AS RAW MATERIAL - The present invention relates to a method for producing a hydride having a carbon number of 4, comprising contacting, in liquid phase, an unsaturated compound having a carbon number of 4 as a raw material with a solid catalyst obtained by loading a metal element belonging to Groups 9 to 11 of the long periodic table on a support, thereby performing hydrogenation to produce a corresponding hydride having a carbon number of 4, wherein hydrogenation is performed in the presence of, as a solvent, a 1,4-butanediol having a nitrogen component concentration of 1 ppm by weight to 1 wt % in terms of nitrogen atom. | 05-15-2014 |
20140179935 | METHOD FOR PRODUCING TETRAHYDROFURAN - The present invention is concerned with a method for producing tetrahydrofuran including carrying out a dehydration cyclization reaction of 1,4-butanediol in the presence of an acid catalyst having a pKa value of not more than 4 within a reactor, wherein a raw material liquid containing 1,4-butanediol to be provided for the reaction contains from 0.01 to 0.35% by weight of 2-(4-hydroxybutoxy)-tetrahydrofuran and 1 ppm by weight or more and not more than 1,000 ppm by weight of at least one of an amine and an amide in terms of a concentration as converted into a nitrogen atom. | 06-26-2014 |
20140187740 | 1,4-BUTANEDIOL-CONTAINING COMPOSITION - The present invention is aimed to provide a 1,4-butanediol-containing composition having high thermal stability as compared with conventional 1,4BG, and the present invention is concerned with a 1,4-butanediol-containing composition having a concentration of 1,4-butanediol of 99.00% by weight or more and not more than 99.99% by weight and containing an amide compound in a concentration, as converted into a nitrogen atom, of from 1.0 to 50 ppm by weight. | 07-03-2014 |
20150087034 | METHOD FOR PRODUCING POLYBUTYLENE TEREPHTHALATE - The present invention aims to provide a method for producing polybutylene terephthalate (PBT) with an excellent color using biomass-derived 1,4-butanediol (BG). The invention relates to a method for producing PBT comprising a step of subjecting a diol component containing raw material 1,4-BG having a nitrogen content of 0.01 to 50 ppm by mass and a dicarboxylic acid component to esterification or ester-exchange reaction, and a polycondensation reaction step for obtaining PBT from the reactant, wherein the content of gamma butyrolactone in the raw material 1,4-BG is 1 to 100 ppm by mass. | 03-26-2015 |
20150087038 | PRODUCTION METHOD FOR 1,4-BUTANEDIOL - An object of the present invention is to provide high-quality 1,4BG capable of working out to a raw material of PBT with good color tone, by efficiently removing and refining impurities mixed when producing a biomass-derived 1,4BG on an industrial scale and the present invention relates to a production method of refined 1,4BG, where a crude 1,4BG-containing solution is obtained from refined raw material 1,4BG obtained by removing bacterial cells, salt contents and water from the fermentation culture medium, through a step of removing high-boiling-point components and/or low-boiling-point components by distillation and/or a step of converting an unsaturated compound to a hydride and the target product is obtained as a side stream in a further distillation step. | 03-26-2015 |
20150087789 | PRODUCTION METHODS OF POLYESTER AND POLYURETHANE - At the time of producing a polyester by using a dicarboxylic acid component and a biomass-resource-derived diol as raw materials, a polyester is efficiently produced with good color tone, as the raw material diol derived from biomass resources, a diol in which the content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 is from 0.01 to 12 ppm by mass, is used, and by controlling the content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 in the raw material diol to fall in a prescribed range, the color tone of the polyester is improved. | 03-26-2015 |