baber/WOPTO huggingface dataset:
Patent JP-2002542311-A (JP)
Title: 酸化チタン及び両親媒性化合物に基づく有機ゾル及び固体化合物、並びにその調製方法
IPC: C09D7/61
Filed: 2000-02-11
Abstract: (57)【要約】
本発明は、酸化チタン粒子、有機液相及びポリエチレンホスフェートアルキルエーテルから選択される少なくとも一種の両親媒性化合物を包含することを特徴とする有機ゾルに関する。第一の態様において、該ゾルを調製する方法は、該両親媒性化合物と有機液相とを混合し、得られた混合物中に酸化チタン粒子を分散させることを包含することを特徴とする。第二の態様において、調製方法は、酸化チタンと少なくとも一種の該両親媒性化合物とを混合し、得られた混合物を液相に分散することを包含する。本発明は更に、酸化チタン粒子と上記した中から選ばれる少なくとも一種の両親媒性化合物との混合物を包含する固体化合物に関する。
Patent JP-2002542528-A (JP)
Title: 通信のためのインタフェース及び方法
IPC: G06F13/42
Filed: 2000-02-10
Abstract: (57)【要約】
本発明は、２つの装置間の通信のための非同期インタフェースに関する。それは、シグナリングラインと少なくとも８本のデータラインを含み、特に短距離に亘る接続に適している。このインタフェースは、２つの装置の間に信号接地ライン、電力供給ライン、電力供給接地ライン及び７本のシグナリングラインを提供する。本発明は、また非同期インタフェースによる通信の方法を与える。この方法は、送信方向を順方向から逆方向へ変更する手順、データを逆方向へ送信する手順及び、送信方向を逆方向から順方向へ変更して戻す手順を含む。
Patent JP-2003517582-A (JP)
Title: 充填が少なくとも一つの緩衝空間に関連づけられた分析カード
IPC: G01N35/00
Filed: 2000-03-09
Abstract: (57)【要約】
【課題】  少なくとも：−カード（１）内に流体標本を導入するための開口部と；−導入された標本の全体または一部を、直接または間接に、受納することができる到着室（３）と；−導入開口部から到着室（３）に（直接移動）、または中間室から前記到着室（３）に（間接移動）前記標本を流入させる一次導管とを含む、生物学に適用された微小流体分野を好適用途分野とする分析カードを提供する。
【解決手段】  それぞれの中間または到着室（３）が、カード（１）の中に位置づけられ、その配置と形状が導入された標本による充填を妨げる緩衝空間（５）に接続されている構成とする。
Patent JP-2003523816-A (JP)
Title: 消泡用組成物
IPC: B01D19/04
Filed: 2000-03-22
Abstract: (57)【要約】
シリカ中の吸収水分を疎水剤と置換するために、温度を上昇させ、真空下で、疎水剤と十分な時間接触することを含む、触媒なし、インシトゥ（in situ：原位置）工程により、シリカを疎水性にする。その結果、不活性、液体、疎水性キャリア媒質中に生成される疎水性シリカの分散は、次ぎに十分な時間にわたり高剪断力を受け、消泡用組成物中に疎水性シリカ粒子の均質な分散が生産される。
Patent JP-2003501010-A (JP)
IPC: C12Q1/68
Filed: 2000-04-07
Abstract: The present invention relates to flea head, nerve cord, hindgut and Malpighian tubule proteins; to flea head, nerve cord, hindgut and Malpighian tubule nucleic acid molecules, including those that encode such flea head, nerve cord, hindgut and Malpighian tubule proteins; to antibodies raised against such flea head, nerve cord, hindgut and Malpighian tubule proteins; and to compounds that inhibit flea head, nerve cord, hindgut and Malpighian tubule protein activity. The present invention also includes methods to obtain such proteins, nucleic acid molecules, antibodies, and inhibitory compounds. Also included in the present invention are therapeutic compositions comprising proteins, nucleic acid molecules, or protective compounds derived from proteins of the present invention as well as the use of such therapeutic compositions to protect animals from flea infestation. Also included in the present invention is the use of flea head, nerve cord, hindgut and Malpighian tubule proteins to derive inhibitory compounds.
Patent JP-2002543380-A (JP)
Title: 多重路分光において電磁波強度の減衰を測定するための装置及び方法
IPC: G01N21/03
Filed: 2000-04-14
Abstract: (57)【要約】
試料による電磁波の吸収に起因する電磁波吸収試料（６２）を通過する電磁波強度の減衰を測定する装置であって、試料の吸収帯内の波長を有する電磁波源（６４）と、試料を通過する所定の光路に沿って相互に離間した複数の部分的反射面（Ｓ０，Ｓ１，Ｓ２・・・）とを備える装置。各反射面は入射電磁波を、所定の光路に従う反射成分と、非反射成分とに分離する。減衰値は、所定の光路に沿う、異なる位置での非反射成分の強度測定から導かれる。
Patent JP-2003500098-A (JP)
Title: マイクロ流体装置及び液体環境におけるパルスマイクロ液体ジェットの発生方法
IPC: A61B17/32
Filed: 2000-05-19
Abstract: (57)【要約】
液体環境において、パルスマイクロ液体ジェットを発生する際に使用するマイクロ液体装置及び方法を提供する。主題となるマイクロ液体装置は、その基部末端にマイクロ液体チャンバーが存在することを特徴とする。該マイクロ液体チャンバーは、基部末端にある開閉部、開口部に対向する蒸気発生手段、及び該開口部と該蒸気発生手段の間にある側壁によって規定される。更に該マイクロチャンバーは、液体がマイクロ液体チャンバーを出る唯一の道が、該開口部を介するものである点を特徴とする。液体環境において液体ジェットを発生する主題の装置を使用する際に、該チャンバーは最初に液体環境と接触する。該蒸気発生手段は、次いで順次液体環境におけるマイクロ液体ジェットを発生するチャンバーにおける蒸気バブルを発生するのに有効な方法で作動する。主題装置及方法は、組織の切開、細胞に液体を導入するなどの様々な異なる適用において、その用途を見いだされる。
Patent JP-2003500535-A (JP)
IPC: C23C16/44
Filed: 2000-05-19
Abstract: A gas shield assembly for protecting an exposed surface of an injector in a chemical vapor deposition system. The shield assembly includes a back wall which supports perforated sheets to define a plenum. The sheets are held in place by endcaps. A conduit delivers gas to the plenum. The conduit includes a stretch extending along the back wall and has a bend adjacent the ends of the back wall. The conduit includes perforations along the stretch and at the bends to provide substantially uniform flow of gas into the plenum and the ends.
Patent JP-2003500457-A (JP)
IPC: A61P1/18
Filed: 2000-06-01
Abstract: Disclosed are methods and pharmaceutical compositions for inducing pancreatic hormone production.
Patent JP-2003500478-A (JP)
Title: ４−フェニル−ピリミジン誘導体
IPC: A61P25/16
Filed: 2000-05-24
Abstract: (57)【要約】
本発明は、一般式（Ｉ）：〔式中、Ｒ 1 は、水素又はハロゲンであり；Ｒ 2 は、水素、ハロゲン、低級アルキル又は低級アルコキシであり；Ｒ 1 及びＲ 2 は、２個の炭素環原子と一緒になって−ＣＨ＝ＣＨ−ＣＨ＝ＣＨ−であってよく；Ｒ 3 は、ハロゲン、トリフルオロメチル、低級アルキル又は低級アルコキシであり；Ｒ     4 /Ｒ 4′ は、互いに独立して水素又は低級アルキルであり；Ｒ 5 は、低級アルキル、低級アルコキシ、アミノ、フェニル、ヒドロキシ−低級アルキル、シアノ−低級アルキル、カルバモイル−低級アルキル、ピリジル、ピリミジル、−（ＣＨ 2 ） n −ピペラジニル（これは、場合により１若しくは２個の低級アルキル基によって、又はヒドロキシ−低級アルキル、−（ＣＨ 2 ） n −モルホリニル、−（ＣＨ     2 ） n −ピペリジニル、−（ＣＨ 2 ） n+1 −イミダゾリル、低級アルキルスルファニル、低級アルキル−スルホニル、ベンジルアミノ、−ＮＨ−（ＣＨ 2 ） n+1 Ｎ（Ｒ     4″ ） 2 、−（ＣＨ 2 ） n+1 Ｎ（Ｒ 4″ ） 2 、−Ｏ−（ＣＨ 2 ） n+1 −モルホリニル、−Ｏ−（ＣＨ 2 ） n+1 −ピペリジニル若しくは−Ｏ−（ＣＨ 2 ） n+1 Ｎ（Ｒ 4″ ） 2 （ここで、Ｒ 4″ は、水素又は低級アルキルである）によって置換されている）であり；そしてｎは、０〜２であり；Ｘは、−Ｃ（Ｏ）Ｎ（Ｒ 4″ ）−又は−Ｎ（Ｒ 4   ″ ）Ｃ（Ｏ）−である〕の化合物並びに薬学的に許容しうるその酸付加塩に関する。この化合物がＮＫ−１レセプターに対して良好な親和性を有し、したがってこのレセプターに関連する疾患の治療に使用できることが見出された。
Patent JP-2001216886-A (JP)
Title: Field-emissive element and method of manufacturing the same
Inventor: CHOI JUN-HEE
IPC: H01J1/304
Filed: 2001-01-05
Abstract: PROBLEM TO BE SOLVED: To provide a field-emissive element and a method of manufacturing the same. SOLUTION: This field-emissive element has a microchip, having the surface roughness of a fine structure of nanoscale order. As a composite of nanochips, that is in a microchip having a surface roughness of fine structure of nanoscale order discharging current is high, even under a low gate voltage, the power consumption can be reduced.
Patent JP-2002203866-A (JP)
Title: Manufacturing method of semiconductor device
Inventor: YAMABE YASUSHI
IPC: H01L23/12
Filed: 2001-01-05
Abstract: PROBLEM TO BE SOLVED: To provide the manufacturing method of a semiconductor device reducing man-hours by substantially simultaneously performing a process for curing under-fill resin and a process for adhering and fixing a radiating plate. SOLUTION: The rear face 1a of a semiconductor element 1 is adhered to the radiating plate 5. The liquid or tape-like under-fill resin 4 is applied or arranged on the mounting face 3a of a wiring board 3. The projection electrode formation face of the semiconductor device 1 sandwiches the under-fill resin 4 to be opposed to the wiring board 3, and the radiating plate 5 is arranged on the wiring board 3 so that the radiating plate 5 sandwiches the under-fill resin 4 to be opposed to the wiring board 3. The semiconductor device 1 is mounted by a flip chip on the wiring board 3, the under-fill resin 4 is cured, and the radiating plate 5 and the semiconductor device 1 are adhered to the wiring board 3.
Patent JP-2002207217-A (JP)
Title: Liquid crystal display device and method for manufacturing the same
Inventor: KATAUE SATORU
IPC: G02B5/20
Filed: 2001-01-10
Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device equipped with highly accurate spacers and a highly efficient method for manufacturing the same. SOLUTION: The liquid crystal display device is characterized by being equipped with a plurality of pixels 2 disposed in a matrix pattern by landing first ink on a substrate 1 with an inkjet method, a lightproof layer 3 arranged at intervals of a plurality of the pixels 2, and a plurality of protruding parts 4 with a specific height disposed by landing second ink by the inkjet method on a plurality of positions on the lightproof layer 3 with ink repellency.
Patent JP-2002206352-A (JP)
Title: Multistory parking garage
Inventor: KOBAYASHI SHINJI
IPC: E04H6/28
Filed: 2001-01-12
Abstract: PROBLEM TO BE SOLVED: To provide a multistory parking garage capable of storing four vehicles at maximum so as to surround a passage where the vehicles are lifted or lowered. SOLUTION: Two first parking rooms 3 are provided across the lift path 5 of a first vehicle mount section 1, and second parking rooms 32 for mounting vehicles are provided perpendicularly to the vehicles 10 stored in the first parking rooms 3 on the same plane as the first parking rooms 3.
Patent JP-2002207900-A (JP)
Title: Merchandise transaction method
Inventor: YAMADA HIROSHI
IPC: G06Q30/06
Filed: 2001-01-12
Abstract: PROBLEM TO BE SOLVED: To provide a merchandise transaction method with which general information regarding sales merchandise is provided and the environment to share information on an electronic commerce is realized. SOLUTION: This merchandise transaction method is provided with the merchandise specification fetching stage (13a) of fetching merchandise specification information including the price of the merchandise inputted by a seller through a seller terminal, the operation result fetching stage (13c) of fetching merchandise operation result information including costs required for the maintenance and management of the merchandise inputted by a buyer through a buyer terminal and the merchandise information display stage (14) of displaying the merchandise specification information and the merchandise operation result information to the seller terminal and the buyer terminal.
Patent JP-2002212037-A (JP)
Title: Hair protecting agent
Inventor: ITO NAOKO
IPC: A61Q5/12
Filed: 2001-01-15
Abstract: PROBLEM TO BE SOLVED: To obtain a hair protecting agent having dechlorination ability, hydroxy radical scavenging ability, excellent safety of the skin, low irritation and pharmaceutically required sufficient storage stability and a hair care composition using the hair protecting agent. SOLUTION: This hair protecting agent is characterized by comprising a compound represented by general formula (1) (R1, R2, R3 and R4 are each independently a hydroxy group, an ester bond-containing group derived from a hydroxy group and an organic acid or inorganic acid, a glycoside group or a group derived from two adjacent hydroxy groups and an aldehyde or a ketone with the proviso that R1 and R2 are not hydroxy groups at the same time) or an ascorbic acid derivative being its salt as an active ingredient. This hair care composition comprises the protecting agent.
Patent JP-2002211531-A (JP)
Title: Container
Inventor: MORITA SHIGETOSHI
IPC: B65D85/30
Filed: 2001-01-19
Abstract: PROBLEM TO BE SOLVED: To provide a container that enables an accommodated item to be stably held and to be taken out easily and stably. SOLUTION: In a top wall 1 of the container, a depression 3 for accommodating an item and depressions 4 and 5 formed successively to the depression 3 therethrough for holding the accommodated item with fingers. The depths of the depressions 4 and 5 are different from each other so that the accommodated item can be easily taken out steadily.
Patent JP-2002219644-A (JP)
Title: Method for manufacturing ceramic electronic parts
Inventor: HASEGAWA KOJI
IPC: H01G4/30
Filed: 2001-01-23
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing ceramic electronic parts allowing reliably rounding a ridge part of a ceramic element and efficiently manufacturing the ceramic electronic parts with high reliability without occurrence of breaking, chipping or cracks. SOLUTION: The ceramic element 2 together with a grinding medium 3 are injected into a barrel 1 with a ratio of total volume of the ceramic element 2 and the grinding medium 3 within 20-50% of an inner volume of the barrel 1 and then the barrel 1 is rotated. In a process to grind/chamfer the ceramic element. 2, a volume ratio of the ceramic element 2 and the grinding medium 3 (=ceramic element/grinding medium) is set at 0.8 or smaller.
Patent JP-2002212312-A (JP)
Title: Optical film and method for producing optical film
Inventor: SHIODA MINORU
IPC: C08F212/04
Filed: 2001-01-23
Abstract: PROBLEM TO BE SOLVED: To obtain an optically homogeneous film suitable for the use in a liquid crystalline device and free from strain of image. SOLUTION: This optical film is composed of amorphous thermoplastic resin. The optical film is obtained by monoaxially or biaxially stretching the film and has <=200 μm thickness and <=5 μm unevenness of thickness and has <=10 nm phase difference in planer direction and <=2 nm unevenness of in-plane phase difference.
Patent JP-2002221081-A (JP)
Title: Cooling structure of cylinder block for internal combustion engine
Inventor: ANDO SOSUKE
IPC: F02F1/10
Filed: 2001-01-25
Abstract: PROBLEM TO BE SOLVED: To provide a cooling structure of a cylinder block for an internal combustion engine which can almost uniformly cool on the circumference of a liner. SOLUTION: In this cylinder block for an internal combustion engine, adopting a Siamese structure, an intermediate rack separating a water chamber in the cylinder block into two water chambers of an upper and a lower water chambers is formed between an annular side wall of a liner part and the cylinder block, a hole for connecting the upper and lower water chambers is provided in the intermediate rack, a through hole or a hole communicating with the water chamber is provided in a connection part of the fellow liners.
Patent JP-2002222358-A (JP)
Title: Advertisement information supply method
Inventor: KATO KOJI
IPC: G06Q50/00
Filed: 2001-01-29
Abstract: PROBLEM TO BE SOLVED: To surely request a customer client on the sponsor side to deliver selected specific information. SOLUTION: An advertisement information supply method is provided with a stage where an advertisement reception client selects specific information from a business menu, a stage where the customer client is requested to deliver detailed information about specific information selected by the advertisement reception client, a stage where the customer client informs a server of specific information, a stage where the server pulls out specific information while relating it to each stored data and delivers it to the advertisement reception client, a stage where the server registers data to update an accounting information DB related to use detail DB, which preserves and manages data of delivered specific information,  and charges the customer client for a delivery frequency of specific information through an authentication means which checks delivery information in the use detail DB and the delivery frequency in the accounting information DB.
Patent JP-2002229858-A (JP)
Title: Computer and program
Inventor: UENO TAKAFUMI
IPC: G06F21/62
Filed: 2001-01-30
Abstract: PROBLEM TO BE SOLVED: To prevent unauthorized duplication when recording digital data in a hard disk built in a personal computer. SOLUTION: This computer comprises a first memory means 108 and a second memory means 106 storing a specified number of a second coding key 110 and a third key 107 for enciphering a first key 103 used for enciphering enciphered data 105, a second enciphering means enciphering the first key 103 by using all or a part of a second key 109, and a storing means 7 recording the enciphered data 105 and a first coding key 113 in a pair.
Patent JP-2002232372-A (JP)
Title: Broadcasting program related information providing apparatus
Inventor: NAKAMITSU HIROAKI
IPC: H04N7/173
Filed: 2001-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a method for providing information capable of showing the information which is interested by individual viewers as related information of a digital broadcasting program. SOLUTION: The method for providing the related information 55 of the digital broadcasting program to a receiving terminal 40 from a server side 10 comprises the steps of providing the related information for the receiving terminal side without selecting or discarding the related information according to information contents at the server side, selecting the related information based on user's taste information 5 at the receiving terminal side, and setting displayable time zone 52 of the selected related information by considering the taste information. The server side can provide many pieces of the related information without selecting and discarding the related information. The viewer can observe the related information matching to the own taste.
Patent JP-2001312104-A (JP)
Title: Image forming device
Inventor: OKAMOTO MASAMI
IPC: H04N1/00
Filed: 2001-02-02
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device by which feeding time is shortened by ejecting the last sheet of transfer paper to the outside of a device without passing through an image formation part again in the case of unnecessitating both-side transfer for the last sheet of transfer paper. SOLUTION: In the image forming device provided with an inverse feeding part by which image data to be transferred are stored, and the image data stored are transferred on the transfer paper 9 by the image formation part 3 and the transfer paper 9 passing through the image formation part 3 is fed to the image formation part 3 again by inverting it so as to transfer the image data on both sides of the transfer paper 9, an ejection path B to feed the transfer paper 9 to the outside of the device without passing through the image information part 3 to eject to the outside of the device from the middle of the inversion path C of the inverse feeding part when the image data need not be transferred to the back face of the last sheet of the transfer paper at the time of transferring on both sides of the transfer paper 9 is formed at the inverse feeding part.
Patent JP-2002227380-A (JP)
Title: Floor tile and floor execution method using the same
Inventor: KATO YASUO
IPC: E04F15/08
Filed: 2001-02-05
Abstract: PROBLEM TO BE SOLVED: To provide a floor tile having resistance to chemicals such as an acid substance and positively shielding a floor backing. SOLUTION: This floor tile is formed of ceramics into a regular hexagonal plane, but the side faces are provided with a large number of vertically extending grooves 2 to form unevenness, and angular parts are formed into recessed parts 3. A plurality of grooves 5 are recessed on the back face to improve a bite into mortar, and the edge part of each side of the back face is provided with a cutout to form a stepped part 6 circulating the peripheral edge. In floor execution, the floor tiles 1 are laid in the abutting state without a joint clearance. At each side face, projecting parts 4 abut each other to form a clearance at the portion of the groove 2, and a relatively large clearance formed by the recessed parts with two adjacent tiles is formed at each angular part.  A filler such as epoxy resin is filled in these joint clearances for shielding after bringing around to the circulating clearance on the stepped part 6 side of the back face.
Patent JP-2002237815-A (JP)
Title: Network system, method of operating network, intermediate module, terminal equipment, information recording medium, and program
Inventor: INAGAKI KATSUTOSHI
IPC: G06F13/00
Filed: 2001-02-08
Abstract: PROBLEM TO BE SOLVED: To provide a network system, etc., that can perform control, etc., on terminal equipment and an information processor, etc., connected to the equipment from an intermediate device side even when no operator exists at the installed location of the terminal equipment. SOLUTION: In a network system S including an intermediate server LS which is interposed between the Internet IN and terminal equipment T to mediate the connection from the equipment T to the Internet IN, the server LS requests the establishment of the connection between the equipment T and server LS and, at the same time, transmits a request signal containing identification information that identifies the server LS to the terminal equipment T. The terminal equipment T receives the transmitted request signal, confirms the server LS based on the identification information contained in the request signal, and establishes the connection with the server LS which transmits the request signal when the equipment T confirms that the server LS is the intermediate server LS to be connected with the equipment T.
Patent JP-2002234010-A (JP)
Title: Method for manufacturing ceramic molded article and molding apparatus using the same
Inventor: SHIMOJO KAZUTOSHI
IPC: B28B1/26
Filed: 2001-02-08
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a ceramic molded article capable of conserving the use amount of a ceramic raw material, capable of uniformly depositing the ceramic raw material and capable of obtaining the ceramic molded article for a short time, and a molding apparatus using the same. SOLUTION: The method for manufacturing the ceramic molded article includes a preparation process for preparing a molding apparatus 7 provided with an outer mold 1 comprising a liquid absorbable porous material, the liquid non-absorbable inner mold 3 arranged in the outer mold and the slip casting cavity provided between the inner mold 3 and the outer mold, a deposition process for casting slip 6 containing the ceramic raw material in the cavity 2 and depositing the portion facing to the surface of the outer mold 1 of the slip to form the ceramic molded article 60, a slip discharge process for discharging the non-deposited slip out of the cavity and a taking-out process for removing the inner mold and taking out the ceramic molded article.
Patent JP-2002239341-A (JP)
Title: Method for treating gas containing nh3 and device for the same
Inventor: MORI YOICHI
IPC: C23C16/44
Filed: 2001-02-19
Abstract: PROBLEM TO BE SOLVED: To provide a method for removing a large amount of NH3 effectively, which suppresses the generation of harmful by-products at a relatively low running cost, and to provide a device for the same. SOLUTION: This method for treating gas containing NH3 is characterized in that the gas containing NH3 is heated at 500 deg.C or higher in an oxygen-free atmosphere to be made to decompose NH3 by heat and that the gas containing undecomposed residual NH3 is adsorbed by an adsorbent at a normal temperature, or is cooled at 200 deg.C or lower and mixed with oxygen to be brought into contact with a NH3 decomposing catalyst heated at 170-200 deg.C.
Patent JP-2001281105-A (JP)
Title: System and method for optical heterodyne detection of optical signal
Inventor: WAYNE V SORIN
IPC: H04B10/142
Filed: 2001-02-19
Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for optical heterodyne detection of an optical signal. SOLUTION: This system for optical heterodyne detection includes an optical combining means for combining an optical signal obtained by combining a first signal and a second signal having reduced noises, and outputting multiple beams including respectively a part of the combined optical signal, in which either of the first and second signals is a sweep local oscillation signal, and a plurality of photo detectors optically arranged respectively so as to receive different beams from among the beams, for generating electric signals in response to each beam.
Patent JP-2002239822-A (JP)
Title: Throw-away type drill
Inventor: TAKIGUCHI MASAHARU
IPC: B23B51/00
Filed: 2001-02-21
Abstract: PROBLEM TO BE SOLVED: To carry out certain and smooth drilling work by preventing sudden increase of cutting resistance at the time of deflection of a tool main body and contact of a cutting blade without requiring many chips or a large chip in the case of carrying out the large diametrical drilling work on a workpiece especially. SOLUTION: Throw-away chips 17, 17 positioned on the inner peripheral side in the diametrical direction out of a plural number of the throw-away chips 17... are mounted so that their cutting blades 18 are arranged on the head end side in the axis O direction of the cutting blade 18 of the throw-away chip 17 on the outer peripheral side on a throw-away type drill constituted by mounting a plural number of the throw-away chips 17... on a head end part 15 of the roughly columnar tool main body 11 to be rotated around an axis O free to connect and disconnect as they are slipped in the diametrical direction so that rotating tracks around the axis O of their respective cutting blades 18 continue in the diametrical direction.