baber/WOPTO huggingface dataset:
Patent JP-2002203970-A (JP)
Title: Thin film transistor and liquid crystal display using it
Inventor: SEKADO YASUTO
IPC: H01L21/336
Filed: 2000-12-28
Abstract: PROBLEM TO BE SOLVED: To provide a thin film transistor which reduces the fluctuation of the capacity made between a gate and a drain in manufacturing process, and a liquid crystal display which reduces the poor quality on display of an image. SOLUTION: In the liquid crystal display, a picture element electrode and a thin film transistor connected through a drain electrode to the picture element electrode are arranged in matrix form. The thin film transistor has a first drain electrode 2-1 which is so made as to overlap the region of the gate electrode including one end out of the two ends in opposition of the gate electrode 5, and a second drain electrode 2-2 which is so made as to overlap the region of the gate electrode including other end of the gate electrode 5 symmetrically with the first drain electrode 2-1.
Patent JP-2002200807-A (JP)
Title: Printing mechanism for printing apparatus
Inventor: AOKI EIJI
IPC: B41J25/304
Filed: 2000-12-28
Abstract: PROBLEM TO BE SOLVED: To save the resource and cut back the running cost by eliminating waste of an ink ribbon, and to improve the printing quality by eliminating adhesion of pollution on a paper. SOLUTION: In providing a printing mechanism 1 for a printing apparatus M comprising a releasing mechanism part 6 for releasing a printing part 5 comprising an ink ribbon 3 in a state pressured by a pressuring member against a paper P on a platen 2 and a printing head 4, a first frame mechanism part 8 to be displaced by a releasing motor 7 for releasing the printing part 5 and a second frame mechanism part 9 for supporting the printing head 4 displaceably are provided. A main pressuring member 10 is disposed between the first frame mechanism part 8 and the second frame mechanism part 9 as well as an auxiliary pressuring member 11 having a pressuring force smaller than that of the main pressuring member 10 is disposed between the printing head 4 and the second frame mechanism part 9.
Patent JP-2002203609-A (JP)
Title: Charging method for nonaqueous electrolyte secondary battery
Inventor: NORITOMI YASUKO
IPC: H01M10/0566
Filed: 2000-12-28
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method for a nonaqueous electrolyte secondary battery with high capacity and excellent charge/discharge cycle characteristics. SOLUTION: The charging method for the nonaqueous electrolyte secondary battery provided with a cathode, an anode containing matter storing and discharging lithium, and nonaqueous electrolyte containing nonaqueous solvent comprises a process in which a protective membrane is formed on the surface of the anode as the nonaqueous solvent of the nonaqueous electrolyte is made to generate decomposition reaction by making rated voltage charging after rated current charging and a charging process for having the anode store lithium.
Patent JP-2002204525-A (JP)
Title: Breaker and packed battery having the breaker built-in
Inventor: TAMAI MIKITAKA
IPC: H02H7/18
Filed: 2000-12-28
Abstract: PROBLEM TO BE SOLVED: To swiftly interrupt a current of a battery even if the current is small, and also to interrupt the current when the battery is fully charged. SOLUTION: A breaker 2 is provided with a heat-resistive interrupting member 5 which is changed-over to an off-state, when temperature becomes higher than a set value, a heating resistor element 6 for heating this interrupting member 5, and a caser 7 in which these heating element 6 and interrupting member 5 are built-in. The heating element 6 is built-in the case 7, so as to be thermally coupled to the interrupting member 5. From the case 7 to its outside, a pair of contact lead terminals 9 connected to fixed contacts 15, which are connected to or disconnected from the interrupting member 5, and one or two control lead terminals 12 for causing a current to flow in the heating element 6 to heat the heating element 6, are led out.  The interrupting member 5 is heated with the heating element 6 heated by causing the current to flow into the lead terminals 12 led outside the case 7, to heat the heating element 6, and the member 5 is changed-over to an off-state.
Patent JP-2002175393-A (JP)
Title: Bulletin board type document authentication computer system utilizing fingerprint authentication device
Inventor: MORI SEIICHI
IPC: G06F19/00
Filed: 2000-12-07
Abstract: PROBLEM TO BE SOLVED: To solve the problem of a smooth flow not occurring, because of the structure of successively going up to high-order approvers and it is difficult to recognize progress in the middle, in the case that a plurality of approvers are present, since authentication system is basically one for which the conventional proposal circulation system of a 'successive circulation' system is electronized or made into a network though it is computerized, and the inherent properties of the system of 'uccessive circulation' are not changed. SOLUTION: A document authenticating system is changed not into the 'successive circulation' system but to a 'bulletin board type' authentication board system having many advantages like displaying a list of approval persons on a screen and easily displaying a list of an approval/circulation history on the screen in real time. When the 'bulletin board' system is attained, even though problems of approval alteration by others and the reliability of approval person individual identification, etc., occur, the problems are solved by combining 'a fingerprint authentication device and an related techniques by a personal computer' which are a combination of low-cost latest product and technique and a flexible, and an 'open' computer authentication system is realized.
Patent JP-2002202922-A (JP)
Title: Tour regeneration system
Inventor: NISHIKAWA ASAKI
IPC: G06Q30/02
Filed: 2000-12-29
Abstract: PROBLEM TO BE SOLVED: To provide a system capable of facilitating the selection of regeneration of the next tour, in the regeneration of a plurality of tours, by use of a prescribed set element and method by a simple operation, or a system for insertion of advertisement or electronic commerce. SOLUTION: This tour regeneration system is provided with a user terminal for browsing information or the like, a set information holding means including a tour set table for storing set information for the order of browsing WEB files, browsing time, command or the like in individual tour regenerations and a regeneration control table for storing set information for the order of regenerating a plurality of tours, a content acquiring means for browsing a computer network on the basis of the set information to acquire contents or the like, and a content display means for displaying the acquired contents on the user terminal, so that a general run of users can make an access on the basis of the set information stored in the tour set table to regenerate the tours.  A junction point is provided after the end of the first tour and before the regeneration of the second tour to perform the regeneration control of the second tour on the basis of the set information stored in the regeneration control table.
Patent JP-2001510071-A (JP)
Title: 流体迂回バルブ
IPC: A61M25/10
Filed: 1998-07-15
Abstract: (57)【要約】
バルブバルーンと、それに取り付けられ、尿道を通って延伸するカテーテルとを含む尿道バルブシステムであり、バルブバルーンを膨張させることにより自制を提供し、また、収縮させることにより、尿がバルーン及びカテーテルを迂回して流れ、尿道口を経て体外に排出されることを許容する。尿がバルブバルーン、カテーテル及び尿道からバクテリアを清浄することにより、感染を最小限にする。カテーテルは、使用者がアクセスできる端部にチェックバルブを備える。使用者はバルーンを空気や水などの液体を供給して膨張させるための小さいポンプをチェックバルブに取付ける。使用者はバルーンの収縮のために、水や空気がバルーンから排出されるようにチェックバルブを操作する。バルブバルーンは膀胱内に配置することができる。尿がバルーン及びカテーテルを迂回して流れる際、膀胱内にシステムを保持しておくために、バルーンを膀胱頚部の直径よりも広い形に収縮させる。またあるいは、システムに、バルーン基部から膀胱頚部を越えて延びるラバーフィンガ等の係留デバイスを含ませてもよい。この場合システムは、尿流が尿道を通ってバルーン及び取り付けられたカテーテルを迂回して流れるのに逆らって、収縮状態のバルーンを膀胱内に留まらせておくために、膀胱内に配置される係留デバイスを含む。バルブシステムはさらに、バルブバルーン及び／又は係留デバイスを炎症を起こさせることなく送り込むのを可能にする外転機構を有してもよい。
Patent JP-2001515172-A (JP)
IPC: F01N3/22
Filed: 1998-08-25
Abstract: The pressure wave machine has a rotor (40) with cells (41), a low-pressure fresh air input channel (38), a high-pressure air charging channel (32), a high-pressure exhaust channel (31) and a low-pressure exhaust channel (35). The two exhaust channels are in a gas casing (34) and the high-pressure air charging channel is in an air casing (39). A direct connection line (46) is fitted between the high-pressure air charging channel and the high-pressure exhaust channel. There should preferably be a non-return valve (47) in this line.
Patent JP-2001518455-A (JP)
Title: 単純疱疹ウイルスの処置のための免疫原性の複合ポリペプチド
IPC: A61K39/385
Filed: 1998-09-29
Abstract: (57)【要約】
単純疱疹ウイルス（ＨＳＶ−１）のＩＣＰ２７タンパク質からの３２２−３３２ペプチド（Ｈ１）のような単純疱疹ウイルス特異的な抗原ペプチド、およびマウスのインビトロ試験でＴＨ１様の応答を導き出すβ−２Ｍ（ａａ３５−５０）のようなＴ細胞結合リガンド（ＴＣＢＬ）からのペプチドを含有するように化学的に合成されたペプチド構築物は、ＨＳＶでの攻撃に対して保護的であった。
Patent JP-2001519311-A (JP)
Title: 水素および一酸化炭素の製造方法
IPC: C01B3/38
Filed: 1998-10-13
Abstract: (57)【要約】
有機原料から水素および一酸化炭素を製造するための接触部分酸化方法であって、酸素／炭素0.3 〜0.8 を与える量の有機原料および酸素含有ガスを、触媒と気体時空速度100,000 〜10,000,000 Nl/kg/hにて接触させることを含み、該使用有機原料が、炭化水素および／または酸素化物を含有する、標準温度および圧力条件下で液体でありかつ平均炭素数が少なくとも６の原料である前記方法。本発明は、さらに電気エネルギーの発生方法、電気エネルギー発生システムおよびこの電気発生システムを設けた輸送手段にも関する。
Patent JP-2001520144-A (JP)
Title: 自動車制御システムの制御動作を改良する方法
IPC: B60T8/42
Filed: 1998-10-16
Abstract: (57)【要約】
本発明は、車両の制御システム、例えばアンチブレーキシステム（ＡＢＳ）、運転安定性制御システム（ＥＳＰ、ＡＳＭＳ、ＦＤＲ）などの制御運転を改良するための方法に関する。この方法によれば、車輪が不安定になりＡＢＳ制御システムが操作されるようになった場合はいつでも、不安定な車輪が接続された制御システムに関連するライン（１８）は、マスターシリンダの圧力（ｐ ＨＺ ）、または、マスターシリンダ（１）、圧力調節用の入力バルブと出力バルブ（５〜８）、低圧貯蔵装置（９）、および取り出された流体媒体をフィードバックするための液圧ポンプ（１０）とを有するブレーキシステムの承認された圧力から、車輪ブレーキ（３、４）からマスターシリンダ（１）へ導く方向の流体媒体通路を閉成することによって一部分切り離される。流体媒体を低圧貯蔵装置（９）から戻すことによって、ブレーキ圧力の比較的早い増加がライン（１８）に生成され、車輪のブレーキ圧力は、マスターシリンダの圧力（ｐ ＨＺ ）、そしてブロックする圧力レベルに素早く接近する。マスターシリンダ（１）と液圧ポンプ（１０）の取り入れ側との間の接続をする特別なバルブ（１４）は、低圧貯蔵装置（９）の部分的空隙が少なくとも生じた後か、またはそこを通る流れが必要な場合にのみ切り換えられる。
Patent JP-2002507492-A (JP)
IPC: B25C5/16
Filed: 1999-03-22
Abstract: A stable pushing magazine for a manual frame stapler having a punch bearing a guide member in the form of a stud magnetized to hold a staple positioned against it. The magazine is in the form of an elongated, closed drawer. One face of the magazine is pierced by a longitudinal opening and another end of the magazine opens in a window at the end of the drawer. The drawer contains a sliding pusher operated by a button for the purpose of displacing the contiguous staples and of placing one staple on the punch via the window at the end of the drawer.
Patent JP-2002512049-A (JP)
Title: 癌関連抗原をコードする単離核酸分子、それら抗原自身、及びそれらの利用方法
IPC: C12N1/21
Filed: 1999-03-16
Abstract: (57)【要約】
本発明は、ＣＴ７，ＫＯＣ−２及びＫＯＣ−３と称される、新たに同定された癌関連抗原に関する。本発明は、又、公知の分子ＫＯＣ−１に関する考察にも関する。患者が発現したとき、これらの分子の各々が抗体を誘発するということを見出した。この考察の結果も本発明の一部を構成するものである。
Patent JP-2002513953-A (JP)
Title: 非線形光学材料
IPC: C07C211/52
Filed: 1999-04-30
Abstract: (57)【要約】
本発明は、二次非線形光学特性を発揮する有機結晶体に関するものであって、さらに詳しくは、前記結晶体を含有し、光学用途に使用される材料に係る。加えて、光学的特性を備えた結晶を調製するのに適した新規な化合物と、結晶を産生する方法とを開示する。
Patent JP-2002514504-A (JP)
IPC: C02F1/32
Filed: 1999-05-05
Abstract: A method for prevention of cryptosporidium oocysts and similar organisms in water by irradiating the water with ultraviolet light in a range of 200 to 300 nm in doses of about 10 mJ/cm2 to 175 mJ/cm2.
Patent JP-2002525249-A (JP)
IPC: B65D51/24
Filed: 1999-01-22
Abstract: A closure is provided for use with a drink container wherein the closure includes an inner member, having an opening formed therein for receiving a straw and having a peripheral portion for mounting to the drink container, and an outer member configured to be fitted to the inner member forming a compartment therebetween. The outer member also has an opening, with the opening of the outer member aligned with the opening of the inner member while the outer member is fitted to the inner member. The aligned openings permit penetration of a straw therethrough. The inner member is shaped to prevent any beverage from within the drink container from entering the compartment even while a straw penetrates the aligned openings of the inner and outer members. In one example described herein, the inner member is shaped to prevent any beverage from entering the compartment via the provision of a raised portion of the inner member positioned and configured to extend through the opening of the outer member while the outer member is fitted to the inner member. The inner member is further shaped to prevent any beverage from entering the compartment via the provision of peripheral sidewalls within the inner member extending upwardly from the peripheral portion of the inner member toward the compartment formed between the inner and outer members. Moreover, portions of the inner member forming a bottom of the compartment are positioned well above the level of any beverage contained in the drink container.
Patent JP-2002528121-A (JP)
IPC: C12N5/10
Filed: 1999-10-29
Abstract: The present invention is directed to a thermostable ligase having substantially higher fidelity than either T4 ligase or Thermus thermophilus ligase. The DNA molecule encoding this enzyme as well as expression systems and host cells containing it are also disclosed. The thermostable ligase of the present invention is useful in carrying out a ligase detection reaction process and a ligase chain reaction process.
Patent JP-2002536740-A (JP)
Title: 比例圧力調整弁
IPC: G05D16/20
Filed: 2000-01-29
Abstract: (57)【要約】
減圧機能と圧力保持機能を有する直接制御弁としての比例圧力調整弁を説明する。弁はおおむね入口及び出口（４、５、６）を有する弁箱（２）、圧力フィードバックを有する制御要素（７）、接極子棒（１５）及び比例磁石（３）からなり、比例磁石（３）は磁鉄心（１７）、接極子（１６）及び電磁コイル（１８）からなる。比例磁石（３）は動作領域でほぼ一定の磁力を有する。本発明によれば保持領域のこれらの２つの部材（１６、１７）の間の磁力が比例磁石（３）の動作領域の磁力より大きく、この磁力によって接極子（１６）を保持領域に固定し得るように、接極子（１６）の保持領域での接極子（１６）と磁鉄心（１７）の最小軸方向間隔（２１）が設定されている。
Patent JP-2003500970-A (JP)
IPC: H03M1/06
Filed: 2000-05-17
Abstract: An A/D conversion offset error correction arrangement includes an A/D converters (10) for converting analog signals into digital signals. A decoder (12) decodes the digital signals into binary signals. A converter (20) converts the binary signals into equivalent decoded digital signals. Means (16, 18, 24) are provided for forming an offset error estimate by averaging the difference between the digital signals and the decoded digital signals. An adder (26) subtracts the offset error estimate from future digital signals before these signals are decoded.
Patent JP-2002204685-A (JP)
Title: Culture medium for cultivating filamentous fungus
Inventor: MOROOKA YASUHIKO
IPC: C12N1/14
Filed: 2001-01-09
Abstract: PROBLEM TO BE SOLVED: To utilize bean jam refuse having been discarded so far without being substantially put to reuse. SOLUTION: This culture medium for cultivating filamentous fungi is obtained by the following procedure: bean jam refuse is used as the main feedstock; the bean jam refuse is incorporated and intimately mixed with an organic nutrient auxiliary such as rice bran, an inorganic nutrient auxiliary such as potassium and a culture auxiliary such as sponge; since almost all of these auxiliaries are poor in economical usefulness as said to be so called wastes, they are usable inexpensively; both the pH and moisture content of the resultant mixture are adjusted to obtain the objective culture medium for proliferating filamentous fungi therein. Filamentous fungi proliferated in the above medium are pure and can easily be dried or put to mixing processing with other component(s) without being contaminated with other kinds of fungi and also without separation from culture residues.
Patent JP-2002208262-A (JP)
Title: Magnetic recording and reproducing device and magnetic recording and reproducing method as well as recording medium
Inventor: TAUCHI YOICHIRO
IPC: G11B27/00
Filed: 2001-01-09
Abstract: PROBLEM TO BE SOLVED: To realize an edit search without making intricate control. SOLUTION: The thumb nail images displayed in the state of Figure 13 (A) are changed to the state of Figure 13 (B) in correspondence to the rotating operation of a dial. When the dial is further rotationally operated in the same direction, the image data for 3GOP components recorded in the farthest position in a delay direction is erased from the currently displayed thumb nail images. The magnetic tape is sent to positive direction. The feed direction of a magnetic tape is inverted after parting by >=4GOP than the thumb nail images to be acquired and phase locking is performed by acceleration up to an 8-times speed, following which the thumb nail images of 3GOP are acquired. The tape feed speed is thereafter decelerated and the tape is so fed that the position of a rotary head corresponds to the currently displayed thumb nail images as shown in Figure 13 (C).
Patent JP-2002207732-A (JP)
Title: Translation device
Inventor: ONO HIROSHI
IPC: G10L13/00
Filed: 2001-01-10
Abstract: PROBLEM TO BE SOLVED: To provide a translation device allowing a user to easily translate what he/she saw (the sentence of a signboard/mark/menu or the like or a desired word) as it is. SOLUTION: A detection/instruction part 12 instructs a translation start when it detects that the user 'winks' or the like. An image processing part 13 reads the taken image of an image input part 11 (e.g. CCD camera mounted on glasses) for photographing the visual line direction of the user and cuts the image of a character part. A character recognition part 14 performs the character recognition of this character part image. A translation part 15 translates the character. The translation result is displayed by a display output part 16 and/or voice-outputted by a voice composition part 17 and a voice output part 18.
Patent JP-2001220829-A (JP)
Title: Connecting member and connecting method
Inventor: SAWADA TAIICHI
IPC: E04B1/58
Filed: 2001-01-12
Abstract: PROBLEM TO BE SOLVED: To easily connect a structural member firmly. SOLUTION: In the connecting member 10A connecting the end section of a beam constituting a steel house to a girder configuring the steel house, the connecting member has the first connecting section 12 holding the beam and the second connecting section 20 connecting the beam to the girder, and the first connecting section has one bottom section and a pair of side walls 38 vertically installed substantially and respectively to the bottom section at each end section of the bottom section.
Patent JP-2001260861-A (JP)
Title: Brake pressure intensifying master cylinder
Inventor: INOUE HIDEFUMI
IPC: B60T13/12
Filed: 2001-01-12
Abstract: PROBLEM TO BE SOLVED: To allow the variation of stroking characteristics at an input side with no influence at an output side and offer simple construction permitting the intensification of a master cylinder pressure, as required. SOLUTION: During operation, an input rod 38 is moved forward to cause a valve spool 34 to be moved forward. Therefore, the opening amount of a control valve is reduced to throttle a liquid flowing in the control valve. Then, a liquid pressure is generated in a pressure chamber 43, a power piston 32 is moved forward and primary and secondary pistons 57, 58 are operated to generate a master cylinder pressure. As a preset liquid pressure is supplied to a pressure chamber 79, a stroke piston 60 strokes to the right. Then, a brake liquid in a master cylinder pressure chamber 76 is fed to a wheel cylinder to make the strokes of the pistons smaller, accordingly. So, the stroke of the input rod 38 is shortened.
Patent JP-2002205258-A (JP)
Title: Polishing pad
Inventor: ANZAI KENICHI
IPC: B24B37/26
Filed: 2001-01-12
Abstract: PROBLEM TO BE SOLVED: To provide a polishing pad capable of restraining generation of defects due to air inclusion more than before. SOLUTION: In a polishing pad at which released paper 6 is affixed onto the back surface of a pad section 2 for polishing through an adhesive sheet 3 and which is fixed onto a surface plate 7 of a polishing machine after the released paper is removed before its use, a communicating hole 8 is formed in the surface of the pad section from the back surface fixed onto the surface plate 7.
Patent JP-2002211406-A (JP)
Title: Guard tool for carry cart
Inventor: HAYASHI MITSUZO
IPC: B62B5/00
Filed: 2001-01-16
Abstract: PROBLEM TO BE SOLVED: To provide a guard tool for a carry cart enabling stable mounting and holding a long commodity or the like on a carrier and easy removal. SOLUTION: The carry cart 1 is formed by erecting vertical frame bodies 3 and 4 on both sides of the carrier 2 having casters 5 and 6 and the guard tool 10 for the carry cart is used by suspending it between both side vertical frame bodies 3 and 4 on the carrier 2. The guard tool 10 is provided with a guard panel 11 and rubber belts 16 and 17 supporting the guard panel, and belt through-holes 12a-12d and 13a-13d are perforated on the guard panel 11. The guard tool 10 is attached by attaching hooks 14 and 15 to both sides of the rubber belts 16 and 17, inserting the rubber belts through the belt through- holes of the guard panel, and hooking both side hooks to the vertical frame bodies.
Patent JP-2002210483-A (JP)
Title: Bulking-controlled continuous activated sludge process
Inventor: SHIOMICHI TOORU
IPC: C02F1/28
Filed: 2001-01-18
Abstract: PROBLEM TO BE SOLVED: To provide a continuous activated sludge process in which bulking can be controlled. SOLUTION: This continuous activated sludge process has at least one aeration tank 20 for treating organic waste water biologically. At least one small- volume aeration tank having the volume of 1/200 to 1/15 of the total volume of the aeration tanks is installed as an adsorption tank 7 at the preceding stage of the tank 20. An agitator of a settling tank 30 is rotated at the rotational speed of >2.5 m/minute and <=8 m/minute circumferential speed. Otherwise, a chain flight system having >=35 cm/minute raking speed is used as the agitator of the tank 30.
Patent JP-2002220212-A (JP)
Title: Ozone generator
Inventor: MASUDA YOSHINORI
IPC: C01B13/11
Filed: 2001-01-18
Abstract: PROBLEM TO BE SOLVED: To improve ozone generation efficiency of an electric discharge ozone generator. SOLUTION: The ozone generator consists of an ozonizer (2) and a refrigeration unit (3). The ozonizer (2) has No.1-No.4 ignition electrodes (6-9) exposed to a gas flow channel (5). The refrigeration unit (3) has Peltier elements (31, 32) exposed to a gas flow channel (28). A source gas containing oxygen is refrigerated directly by the Peltier elements (31, 32) in the unit (3) and introduced into the ozonizer (2).
Patent JP-2002162252-A (JP)
Title: Rotary position detector
Inventor: DAIKOKU AKIHIRO
IPC: G01D5/30
Filed: 2001-01-26
Abstract: PROBLEM TO BE SOLVED: To provide a mechanical strong and small-sized rotary position detector high in reliability and capable of detecting an absolute position. SOLUTION: A body to be detected 8 comprising a conductor is attached to the rotary shaft 2 of a rotator 1. A sensor 9 is attached to a stator frame 5 to face the opposite face 8A of the body to be detected 8. The sensor 9 detects a distance up to the opposite face 8A from the change of impedance seen from a high frequency coil 13, and the output is converted into a rotary position (θ) by a signal conversion part 11.
Patent JP-2002221527-A (JP)
Title: Wear state detection method and device for tire, and wear determination program for tire
Inventor: KAWASAKI HIROAKI
IPC: B60C19/00
Filed: 2001-01-26
Abstract: PROBLEM TO BE SOLVED: To provide a wear state detection device for a tire capable of relatively correctly detecting the wear state of the tire. SOLUTION: This device is provided with a rotation speed detection means for periodically detecting the rotation speed of the tires of four vehicular wheels, a first calculation means for calculating the vehicular speed and the vehicular acceleration/deceleration from the measurement value of the rotation speed detection means, a second calculation means for calculating slip rates of front and rear wheels, a third calculation means for finding mutual primary regression coefficients and correlation coefficients between the vehicular acceleration/ deceleration and the slip rates, a fourth calculation means for accumulating a predetermined number of the primary regression coefficients when the obtained correlation coefficients are equal to or more than a predetermined value to find the average value of the primary regression coefficients,  and a tire wear detection means for detecting the wear state of the tires according to the average value.