baber/WOPTO huggingface dataset:
Patent JP-2004193832-A (JP)
Title: Configuration information providing system, configuration information management server, access authentication server, client, and program
Inventor: NAGURA MASATAKE
IPC: G06F21/44
Filed: 2002-12-10
Abstract: <P>PROBLEM TO BE SOLVED: To prevent a setting process from being carried out in accordance with inaccurate configuration information even if inaccurate configuration information is sent from a malicious user when a client acquires configuration information from a configuration information management server to set it up at the client himself.  <P>SOLUTION: An access authentication server 320 manages the public key K301a and K301b of configuration information management servers 310a and 310b. The client 300 acquires the public keys K301a and K301b from the access authentication server 320, and then a request for acquiring configuration information is transmitted. The configuration information management server 310a managing the requested configuration information generates authentication information by enciphering the corresponding configuration information using the unique private key H310a of the server 310 itself, and the configuration information including the authentication information is transmitted to the client 300. The client 300 determines the correctness of the configuration information on the basis of the authentication information and the public keys K301a and K301b, and a setting process is performed only when it is found correct.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003192132-A (JP)
Title: Method and device for depalletizing cut piece stack body, and lifting means for performing the method
Inventor: MIKULIC JOSIP
IPC: B65G59/02
Filed: 2002-12-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method and a device for depalletizing a cut piece stack body stacked on a palette while inserting a flat intermediate layer that comprises a movable grip head and an insert tool directed substantially horizontally to the grip head, positions the insert tool before the cut piece stack body by moving the grip head, can insert the insert tool between the cut piece stack body and an intermediate layer by the horizontal motion to store the cut piece stack body, and has a mode in which the insert tool extracts the stored cut piece stack body from the intermediate layer by moving the grip head.  <P>SOLUTION: At least one side surface 11 of the cut piece stack body 2 is lifted up before pressing the insert tool 5. At least one lifting means 10 is provided for lifting up at least one side surface 11 of the cut piece stack body 2.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004188367-A (JP)
Title: Water activation device
Inventor: TAKANO MITSUGI
IPC: C02F1/48
Filed: 2002-12-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a water activation device which can more efficiently realize water activation than conventional devices.  <P>SOLUTION: This device is provided with a circular pipe 2 made of non-magnetic materials for passing water and a plurality of cylindrical magnet units 5, 6, 7, 8 placed in series along the longitudinal direction of the circular pipe in such a way that the circular pipe penetrates the center parts of the magnet units. Each of the magnet units is constituted in such a way that four or more sheets, even-numbered sheets, of the same shaped magnet sheets 9A, 9B, which are curved in circular arc shapes so that the inner peripheral surfaces may be tightly adhered to the outer peripheral surface of the circular pipe, is arranged without gap in the peripheral direction of the circular pipe to be assembled in a cylindrical shape. The inner peripheral surfaces of shield rings 10 made of ferromagnetic materials are fitted on the outer peripheral surfaces of the respective magnet sheets. The magnet sheets 9A, 9B adjacent to each other are magnetized reversely in the radial direction of the circular pipe. In the respective magnet units, an attachment angle in the peripheral direction of the circular pipe of the magnet unit is different from those of the adjacent magnet units toward the direction of water fluidization.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004194206-A (JP)
Title: Image forming apparatus
Inventor: HAYASHI SHUJI
IPC: G06T5/20
Filed: 2002-12-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of using a few data to apply moire suppression processing to each pixel.  <P>SOLUTION: This image forming apparatus is provided with an original reading part 4 for reading an original and acquiring first image data, a MAX/MIN density detecting part 503 for detecting the maximum density value and the minimum density value of pixels existing in a prescribed observation area in the first image data, an α setting part 507 for storing a smoothing coefficient α, a peak detecting part 504 for detecting a density peak pixel in the observation area, a peak interval detecting part 505 for detecting the maximum value in the number of pixels from the density peak pixel to the next density peak pixel in the observation area as a peak interval value, a β coefficient calculating part for calculating a resolution coefficient β on the basis of the peak interval value, and a moire elimination processing part 508 for generating second image data in which the density value of each pixel of the first image data is subjected to smoothing processing on the basis of the density value of the pixel, the maximum density value, the minimum density value, the smoothing coefficient α and the resolution coefficient β.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004189323-A (JP)
Title: Heat sealing unit, filling system, sealing method for cup-like container, and manufacturing method for sealed package containing cup-like container
Inventor: MORIMOTO KEIJI
IPC: B65B51/10
Filed: 2002-12-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a heat sealing unit for constant production of a sealed package with proper sealing strength, a filling system having the heat sealing unit, a sealing method for a cup-like container, and a manufacturing method for the sealed package containing the cup-like container.  <P>SOLUTION: The heat sealing unit is arranged so as to move up and down between a top dead center and a bottom dead center, and has a sealing head 42, which is pressed to a lid 48, placed on the container 47 to cover its opening, at the bottom dead center and heat seals the lid on the opening rim of the container. The heat sealing unit is also provided with a noncontact radiation thermometer 52 for measuring a temperature of the sealing head.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004198159-A (JP)
Title: Measuring device for axis misalignment of on-vehicle sensor
Inventor: SHIMOMURA TOMOKO
IPC: B60R21/00
Filed: 2002-12-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a shaft misalignment measuring device for an on-vehicle sensor capable of measuring the shaft misalignment of a position measuring device precisely.  <P>SOLUTION: The shaft misalignment measuring device for the on-vehicle sensor of an on-vehicle sensing system has a laser radar 1 which is mounted on a vehicle and measures the position of a front object existing in front, a data memory 2 for storing data on the position of the laser radar 1, an electronic camera 7 for photographing an image in the same direction as the direction of measurement of the laser radar 1, and an image memory 8 for storing image data photographed by the electronic camera 7. The measuring device is equipped with a straight advance determination means 9 for determining from the image data that the vehicle is in a straight advancing state, a movement vector calculation means 5 for calculating the movement vector of a stationary object from data on the position of the front object when the determination means 9 determines that the vehicle is in a straight advancing state, and a shaft misalignment angle calculation means 6 for calculating the axis misalignment angle of the laser radar 1 from the movement vector.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003253024-A (JP)
Title: Printing sheet
Inventor: TAKADA ATSUHIRO
IPC: C08J9/00
Filed: 2002-12-19
Abstract: <P>PROBLEM TO BE SOLVED: To prepare a printing sheet made of a thermoplastic resin excellent in scratching resistance on the surface, a peeling strength and cohesive strength in a layer, so that a printed surface is not come off with a lapse of time and the printed surface is not injured when it is fixed with a sticking tape, or the like.  <P>SOLUTION: This printing sheet contains at least one layer of a porous film made of the thermoplastic resin with fine pores as a print recording layer. The porous film contains 10 wt.% or more of a polyolefin with a molecular chain length of at least 2,850 nm.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004194976-A (JP)
Title: Method of holding and releasing medical capsule, method of introducing the same, and method of collecting the same
Inventor: HIRAGA TAKEHITO
IPC: A61B1/00
Filed: 2002-12-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for holding and releasing a medical capsule, a method for introducing the medical capsule into an object to be observed such as a living body, and a method for collecting the medical capsule from the object to be observed such as the living body by utilizing an existent endoscope without introducing a new apparatus such as the collecting apparatus, an introduction apparatus of the medical capsule.  <P>SOLUTION: This method holds the medical capsule by utilizing an endoscope system (1) and releases it thereafter. The endoscope system (1) is provided with: an endoscope main body (10) having an opening (23) capable of at least sucking at the tip of an insertion part (12) to be inserted into the object to be observed; and a pump (100) connected to the opening. This method comprises: a first step for sucking the capsule to the opening with suction force by operating the pump; and a second step for releasing the capsule from the opening by weakening the suction force by the pump.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004200058-A (JP)
Title: Power storage device
Inventor: NAKAHARA KENTARO
IPC: H01G11/24
Filed: 2002-12-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a high output power storage device which has a small irreversible capacitance.  <P>SOLUTION: The power storage device has a positive electrode containing a nitroxyl compound which turns into a N-oxo-ammonium cation partial substructure as shown by formula (I) in the oxidation state and turns into a nitroxyl radical partial substructure as shown by formula (II) in the reduction state, and uses a reaction shown by reaction formula (A) that performs electron transfer between above two states as a positive electrode reaction. A negative electrode contains active carbon covered by pitch.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004196398-A (JP)
Title: Can lid and can
Inventor: HANABUSA YASUHIRO
IPC: B21D51/44
Filed: 2002-12-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a can lid which is improved in pressure resistance in the same shape as a conventional one.  <P>SOLUTION: On the can lid having an annular groove 19 formed along the periphery of an approximately disklike panel, a plurality of fine uneven shapes are formed on at least one of a rounded panel region 21 formed to be arcuate from a flat part 18 of the panel toward the annular groove 19 and a countersink 23 formed to be arcuate on the bottom of the groove 19. An area shaped in the unevenness is in a range of 20 to 50% of an area of the region where the plurality of uneven shapes are formed. In addition, the uneven shape is a circular dented form with a diameter of 0.2 to 5.0 mm and a depth of 3 to 12% of the thickness.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003208955-A (JP)
Title: Detaching device of socket connector
Inventor: KO SHOHAI
IPC: H01R12/71
Filed: 2002-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a detaching device of a socket connector of which the manufacturing cost is lower and which also serves to the effect of protection against dust.  <P>SOLUTION: The detaching device of the socket connector is used for positioning the socket connector conveniently on a circuit board being attracted by a vacuum suction equipment while being attached to the socket connector. Including a main body part, which has a rectangular board-like shape and has a stopping block, and a thin film stuck on the main body part, the main body part covers only a part of the terminal holes of the socket connector, the openings for each are prepared in the square part of the main body part, respectively, a smooth plane is prepared in the central part of other surfaces which approach to the cover of the socket connector, and the thin film is stuck on this main body part and the socket connector through a substance which has viscosity. By making this thin film cover all the terminal holes of the socket, the effect of protection against dust can be performed.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004153772-A (JP)
Title: Data communication unit and its utilization system
Inventor: MIYAGAWA YASUHIRO
IPC: H04M1/00
Filed: 2002-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To make up a structure to switch a terminal defined as a data line to a terminal used for temporary or regular voice communication, to make the mounting of a speaker and microphone jack on a unit unnecessary, and to attain cost reduction and miniaturzation.  <P>SOLUTION: A data communication unit 1 has no special signal terminal for voice communication and is equipped with at least three signal terminals, and a signal terminal switching means(communication controller 11) switches two signal terminals among at least three signal terminals to signal terminals for the voice communication properly. A data communication unit utilization system 2 has no special signal terminal for voice communication and is equipped with at least three signal terminals, and a signal terminal switching means(communication controller 21) switches two signal terminals among at least three signal terminals to signal terminals for the voice communication properly.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004208115-A (JP)
Title: Tag information management apparatus, antenna for tag information management
Inventor: IGARASHI KEISUKE
IPC: H01Q1/24
Filed: 2002-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a highly reliable tag information management apparatus and antenna for tag information management capable of reading or writing information on a radio tag regardless of the orientation of the radio tag surface.  <P>SOLUTION: In the tag information management apparatus, having a loop antenna provided along a transport line 2, for reading or writing the information on the tag attached to an article transported by the transport line using a magnetic field generated by the loop antenna, the loop antenna comprises at least two loop antennas 1B, 1C, and each loop plane is nearly parallel to the transportation plane and magnetic fields generated by respective loop antennas 1B, 1C have directional components different from each other by about 90 degrees.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004207657-A (JP)
Title: Thermoelectric element, its manufacturing method and thermoelectric module
Inventor: YAMASHITA HIROYUKI
IPC: H01L35/16
Filed: 2002-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a thermoelectric element being capable of obtaining an excellent solderability and having a high joint strength in a thermoelectric module assembly process, and to provide its manufacturing method.  <P>SOLUTION: An element of at least one kind selected from a group composed of Bi and Sb and an element of at least one kind selected from a group composed of Te and Se are prepared in a desired composition and used as a raw material (a step 1a). The raw material is heated, dissolved and cooled, and the ingot of a thermoelectric material is formed (a step 2a). The ingot is sliced and the wafer of the thermoelectric material is cut out (a step 3a). The wafer is polished (a step 4a), and the polished wafer is plated and worked (a step 5a), thus manufacturing the themoelectric element.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003264154-A (JP)
Title: Method of growing semiconductor film and method for manufacturing semiconductor device
Inventor: TAKAHASHI KUNIMASA
IPC: H01L29/872
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method of growing a semiconductor film which has the steepness of an impurity concentration profile and flatness of a surface, and a semiconductor device manufacturing method which uses this method.  <P>SOLUTION: Inside a chamber 1, a substrate 3 is put on a susceptor 4, and the substrate 3 is heated to a high temperature. Material gas and diluent gas are supplied into the chamber 1 from a material gas supply pipe 7 and a diluent gas supply pipe 9 equipped with flowmeters 10, 11. Then doping gas is supplied from an additional gas supply pipe 12 equipped with a pulse valve 20 and a gas lead-in pipe 13 according to the on/off-action of the pulse valve 20, and a doped layer is epitaxially grown on the substrate 3. The impurity concentration profile in a region where transitions from the substrate 3 to the doped layer occurs becomes steep, and the surface of the doped layer is flattened by directly supplying in a pulse state the doping gas on the secondary side of the pressure reducer of a gas bomb via the pulse valve 20 onto the surface of the substrate 3.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004181197-A (JP)
Title: Straw fixture with clip
Inventor: NAKAMURA YUKIJI
IPC: A47G21/00
Filed: 2002-12-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a straw fixture with a clip by which a user can hold a straw in his mouth easily and by which the user, especially an infant who does not have much holding power, can hold the can with both hands to drink without shaking or dropping the can because there is no need to hold the straw with his hand.  <P>SOLUTION: A pull-tab pinching part 10 provided at the lower part of a clip 4 pinches and fixes a pull-tab 7, which is standing vertically, of a can 8 containing drink such as juice. And a commercially available disposable straw 6 is inserted and fixed in a cylindrical straw fixing part 3 provided on the back side of the clip 4. A rubber stopper 5 for the straw 6 provided in the straw fixing part 3 prevents the disposable straw 6 from moving easily from the fixed position.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004188148-A (JP)
Title: Self-destruction type syringe
Inventor: ABE MAMORU
IPC: A61M5/315
Filed: 2002-12-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a low-cost self-destruction type syringe which is certainly not used again by solving problems that a conventional disposable syringe is expensive and liable to be used again to cause a large number of cases of secondary infection.  <P>SOLUTION: In a cylinder main body 2 easy to be destroyed, a lock 4 with a pawl equipped with a hard and sharp blade tip 13 is held on a piston shaft 11 having a number of annular projecting threads 5 on its surface. When a piston main body 3 is inserted and the piston main body 3 is pulled to suck an injection liquid, the lock 4 with the pawl is fixed near the top end of the piston main body 3. The injection liquid is injected into the body to move the lock 4 with the pawl close to the top end of the cylinder main body 2 together with the piston main body 3. When the piston main body is to be returned again for injecting the liquid, the sharp blade tip 13 of the lock 4 with the pawl thrusts the cylinder main body and when the piston main body is further to be strongly pulled, the cylinder main body 2 is destroyed.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003243114-A (JP)
Title: Lamp socket
Inventor: HENRICI DIETER
IPC: H01R33/06
Filed: 2002-12-17
Abstract: <P>PROBLEM TO BE SOLVED: To improve the lamp socket, in particular, the socket for a halogen high voltage lamp functionally and in respect of automatic manufacture.  <P>SOLUTION: This relates to a lamp socket 10, in particular, a socket for a halogen high voltage lamp in which a holding spring 16 is, on one hand, locked to the socket block 11 by a locking piece 24 of hooking-shape and, on the other hand, holds a cover 12 to the socket block 11. The cover 12 has a housing chamber for a part of the contact points and comprises an opening 20 on the bottom side in the center for passing the leg 15 of the holding spring 16 and for housing a bridging member 25 of the holding spring 16, and the bridging member 25 has a piece 26 pointed toward outside at the end, and these pieces are supported at the bottom of the cover 12.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003535724-A (JP)
Title: 高機能複合管状構造物
IPC: A63B53/10
Filed: 2001-06-14
Abstract: (57)【要約】
本発明は、概して、高機能複合管状構造のデザインおよび製造に関する。より具体的には、本発明は、管の内径（「ＩＤ」）または外径（「ＯＤ」）表面上のリブの一体型パターンを利用する高機能複合管状構造に関する。本発明は、従来の管より軽くかつ硬い高機能複合管状構造を提供する。概して、本発明は、性能を大幅に増強するために、従来と異なった特徴を管状構造のデザインに組み込む。例えば、本発明の好適な一実施形態において、管状構造は、管のＩＤ上に小さくかつ安定した隆起リブを組み込むことによって増強される。
Patent JP-2004502938-A (JP)
Title: 全血のアッセイ方法
IPC: G01N33/53
Filed: 2001-06-26
Abstract: 本発明は、生体外で全血中の白血球接着分子と血管内皮リガンドとの間の結合性相互作用の測定方法に関する。本発明の好ましい実施態様において、白血球接着分子は、Ｖｅｒｙ Ｌａｔｅ Ａｎｔｉｇｅｎ−４（ＶＬＡ−４）またはＣＤ４９ｄ／ＣＤ２９としても知られるインテグリンα ４ β １ であり、そして血管内皮リガンドはＶａｓｃｕｌａｒ Ｃｅｌｌ Ａｄｈｅｓｉｏｎ Ｍｏｌｅｃｕｌｅ−１（ＶＣＡＭ−１）である。本方法は、とりわけ、接着分子とそのリガンドとの間の結合性相互作用を調節する化合物の効果の測定に有用である。
Patent JP-2004516863-A (JP)
Title: 摂取可能な電子カプセル
IPC: A61B5/07
Filed: 2001-07-24
Abstract: 改良された新規の摂取可能カプセル（１０）、及び、消化器官内を通過すべく構成された非消化性外殻（２０）からなる摂取可能カプセルを使用して人間や動物の消化器官内から医学情報を測定する方法。マーカー膜（１２）は非消化性外殻の一部分を介して露出されている。マーカー膜は所定の検出可能情報を検出、識別する性能を有する。非消化性外殻内には、消化器官内からマーカー膜によって得られた特定情報があると電子特性を変化させるバイオセンサ（１４）、変化した電気特性の信号を体外の遠隔受信機に送信する低周波トランスジューサ（１６）、及びトランスジューサを駆動する小型電池（１８）、がハウジングされている。
Patent JP-2004504475-A (JP)
Title: 低電圧液晶動作のための無色かつ低粘度化合物
IPC: C09K19/58
Filed: 2001-07-20
Abstract: 液晶組成物とほぼ同じ粘度を有し、低電圧動作を支持する無色のドーパントが提供される。このドーパントは、３つの構造：（１）ビフェニル、（２）ジフェニル−ジアセチレンおよび（３）二重トランのうちの１つを有し、それぞれの場合において、当該分子の一方の末端に結合したアミノ基（第二または第三）を有し、当該分子の他方の末端に少なくとも１種の極性基を有する。概略的に、その包括構造は、 【化１】     （ここで、Ｒ １ は、１〜１２個の炭素原子を有するアルキルであり、Ｒ ２ は、水素であるか、またはＲ １ とは独立に、１〜１２個の炭素原子を有するアルキルであり、Ｍは、極性基であり、ＸおよびＹは、独立に、水素、またはＭと同じである必要のない極性基であり、（Ａ）は、（１）単結合（ビフェニル）；（２）−Ｃ≡Ｃ−Ｃ≡Ｃ−（ジフェニル−ジアセチレン）；または（３） 【化２】     （二重トラン）（ここで、Ｚは、水素、Ｆまたはアルキル）である）によって示すことができる。
Patent JP-2004508558-A (JP)
Title: 環境圧の変化に依存する信号を形成するための装置
IPC: G01L23/08
Filed: 2000-09-06
Abstract: 本発明は、環境圧の変化に依存する信号を形成するための装置に関しており、以下の各要件：環境圧（ｐ）に依存する圧力信号（ＤＳ）を形成する圧力センサ（Ｓ）と、圧力センサ（Ｓ）の後ろ側に接続された信号処理ユニット（ＳＶＥ）とを有しており、信号処理ユニットは、少なくとも１つのアナログ対数化装置（Ｌｇ１；Ｌｇ２；Ｌｇ３；Ｌｇ４１，Ｌｇ４２，Ｌｇ５）及び少なくとも１つのハイパスフィルタ装置（ＨＰ１；ＬＰ２，ＳＵＢ２；ＳＵＢ３，ＡＤ３，ＩＮ３，ＤＡ３；ＳＵＢ４，ＬＰ４）を有している。
Patent JP-2004511078-A (JP)
Title: 照明システム
IPC: H05B44/00
Filed: 2001-10-12
Abstract: システム（１０）は、電源（１１）に照明要素（５０）のような電気装置を接続する技術を開示する。電気装置は、支持面上に配列された導電要素（２４）と静電結合するための金属層領域である電気的接続部（５５、５６）を備える。支持面上の導電要素（２４）は電源に接続される。好ましい実施の形態において、電気装置は、ＬＥＤ（５０）が埋設された照明タイルの形状とされ、電源が使用する信号経路を介してデータの送受信を行うことが可能な制御機器およびセンサ機器（５９、６０）を備える。照明タイル（５０）は、磁力によって支持面に固定されるため、このタイルを支持面に対して簡単に着脱することができる。
Patent JP-2004512321-A (JP)
IPC: C07C227/40
Filed: 2001-10-15
Abstract: The present invention relates to a process for the preparation of gabapentin and, more particularly, it relates to a process for the preparation of gabapentin hydrochloride by the Hofmann rearrangement of 1,1-cyclohexane-diacetic acid monoamide.
Patent JP-2004531464-A (JP)
Title: 線状のポリグリセロール及びポリグリセロールエステルを調製する方法
IPC: C07C41/09
Filed: 2001-11-06
Abstract: 本出願人は、環状ポリグリセロール及び環状ポリグリセロールエステルの形成を最小限にしながら、ポリグリセロール及びポリグリセロールエステルを高い収率で調製するための方法を発見した。さらに、本発明の方法は、高率の線状ポリグリセロール及びポリグリセロールエステルを生成する。線状ポリグリセロールは、溶融状態で外見が透明であること、望ましいガードナー色数、刺激の少ない匂い、及び刺激の少ない味を含む、きわめて望ましい物理的性質を有している。本発明の方法によって調製したポリグリセロール及びポリグリセロールエステルは、化粧品及び食品添加剤として使用するのに非常に好適である。本発明の方法によって、環状ポリグリセロール及びポリグリセロールエステルが形成されるとしてもごくわずかなので、このような副産物を除去するための、高価で時間を浪費する蒸留ステップは不要である。より具体的には、本出願人は、水酸化カルシウムなどのカルシウム含有化合物を、グリセロール、ポリグリセロール、又はこれらの混合物の重合中又はポリグリセロールのエステル化中に水酸化カリウム又は水酸化ナトリウムの代わりに使用すれば、環状ポリグリセロールの形成が大幅に減少することを発見した。本発明の一実施形態は、ポリグリセロールを調製する方法であって、グリセロール、ポリグリセロール、又はこれらの混合物を、水酸化カルシウムなどのカルシウム含有化合物の存在下で重合させることを含むものである。カルシウム含有化合物は、触媒的に有効な量で存在することが好ましい。他の実施形態は、カルシウム含有化合物の存在下でポリグリセロールをエステル化することによって、ポリグリセロールエステルを調製する方法である。