baber/WOPTO huggingface dataset:
Patent JP-2002524808-A (JP)
IPC: G06F21/62
Filed: 1999-09-01
Abstract: A security module, a security system and a mobile station for utilizing and use with the module and system enable ready implementation of services and devices that afford a high level of data security using standard devices without required modifications of the standard devices to implement banking and other services requiring high data security. A security module uses a standardized local interface for transmission of the messages to be transmitted. Messages can be transmitted in real time without any significant delays introduced by the telecommunication network to effect the encryption functionality.
Patent JP-2002527666-A (JP)
Title: 内燃機関の排気ガス中の気体および／または固体の汚染物質のプラズマ化学的削減のための方法および装置
IPC: F02B51/04
Filed: 1999-10-13
Abstract: (57)【要約】
誘電体バリア放電を用いることによる内燃機関の排気ガス中の気体および／または固体の汚染物質のプラズマ化学的削減のための方法が提案され、誘電体バリア放電は内燃機関の燃焼空間（４）内で行なわれる。
Patent JP-2002528754-A (JP)
Title: 秘密鍵式暗号化アルゴリズムを利用する電子構成部品内の対抗措置方法
IPC: G06F21/86
Filed: 1999-09-13
Abstract: (57)【要約】
秘密鍵Ｋ式暗号化アルゴリズムを利用する電子構成部品において、アルゴリズムの利用には、入力データＥから出力データＳを算出する為の第一手段ＴＣ 0 を使うことが含まれており、出力データ及び／または派生データは、クリティカル命令によって処理され、対抗措置方法には、出力データ及び派生データが予測不可能になるように、他の手段ＴＣ 1 及び／またはＴＣ 2 を使用することが準備されている。
Patent JP-2002531564-A (JP)
Title: ピリジル−橋頭誘導体およびそれらの類縁体、医用組成物およびニコチン性コリン作用性受容体の阻害物質としてのそれらの使用
IPC: A61K31/439
Filed: 1999-08-31
Abstract: (57)【要約】
医用組成物は、ある一定のニコチン性コリン作用性受容体の機能を抑制するように作用することができる、アリール置換アミン化合物、特に、炭素連結芳香族アザビシクロ化合物、特に、式（Ｉ）および式（ＩＩ）で表される芳香族アルキレンアザビシクロ化合物および芳香族アルキルアザビシクロ化合物を含む。
【化１】
Patent JP-2002531647-A (JP)
Title: 発泡性ポリスチレン粒子の製造
IPC: C08J9/16
Filed: 1999-12-07
Abstract: (57)【要約】
５〜５０質量％の発泡グラファイト及び必要により２〜２０質量％のリン化合物を難燃剤として含み、この難燃剤の存在下、スチレンを懸濁重合することにより微粒子状の発泡性スチレンポリマーを製造する方法。
Patent JP-2002539076-A (JP)
IPC: A61P3/10
Filed: 2000-01-06
Abstract: The invention describes methods for inhibiting angiogenesis in a tissue by administering an antagonist that specifically binds to a proteolyzed or denatured collagen but not to native triple helical forms of the collagen. Antagonists of the invention can target, for example, denatured collagens type-I, type-II, type-III, type-IV, type-V and combinations thereof. Methods utilizing such antagonists for therapeutic treatment of tumor growth, tumor metastasis or of restenosis also are described, as are methods to use such antagonists as diagnostic markers of angiogenesis is normal or diseased tissues both in vivo and ex vivo. Antagonists include monoclonal antibodies referred to as HUI77, HUIV26, and XL313.
Patent JP-2002534732-A (JP)
Title: 方向選択キーを備えた小型キーボード
IPC: H04M1/02
Filed: 1999-12-17
Abstract: (57)【要約】
従来のデータ入力キーを利用する数値データの１ストローク入力に加えて、多数の補助的文字・数字データ（４０）の簡易な２ストローク入力を提供するデータ入力及び処理システム。キー配置は、所定の文字・数字データ要素を選択及び入力するために、従来のキー（３５）と共に利用される一組の径方向方向指示キー（２６−３３）を有する。入力データ信号を電子通信のために必要なＤＴＭＦトーン又はコンピュータデータ入力のためのＡＳＣＩＩコードに変換すると共に、データ入力を表示するためのＬＣＤディスプレイ、予めプログラムされたマイクロプロセッサ、及び他の電子部品が設けられる。本システムは、一般のユーザにも容易に利用でき、すべての電子部品が標準であり、サイズが小さく、数が少なく、電力消費が少なく、コストが低い。それは、小型装置の実施に特に適合し得る。
Patent JP-2002534483-A (JP)
IPC: A61K41/00
Filed: 2000-01-14
Abstract: Methods and compositions useful for targeting and treating target tissues affected by or involved in metabolic bone disorders and bone metastases with photodynamic therapy (PDT) in a mammalian subject are provided. The compositions are biphosphonates, pyrophosphates, or biphosphonate-like compounds conjugated to photosensitive agents which are optionally further conjugated to ligands which are target tissue specific antibodies, peptides, or polymers. The method of PDT treatment utilize these compositions to target the tissues or cells of a mammalian subject to be treated. The methods include irradiating at least a portion of the subject with light at a wavelength absorbed by said photosensitizing agent that under conditions of activation during photodynamic therapy using a relatively low fluence rate, but an overall high total fluence dose results in minimal collateral tissue damage.
Patent JP-2002537487-A (JP)
Title: 耐磨耗性面を形成する方法と装備
IPC: F02F1/00
Filed: 2000-01-26
Abstract: (57)【要約】
この発明は、Ａｌ−Ｓｉ合金から成る構成部材に、特にピストン往復内燃機関のクランクケ−ス（１８）のシリンダ（１６）のシリンダ接触面（１４）に耐磨耗性面を製造する方法と装備に関する。この場合に、一個の熱伝導装置（３０、３６）が設けられていて、その熱伝導装置は構成部材（１８）との熱伝導接触点に配置されていて、冷却媒体を包含する。
Patent JP-2002538226-A (JP)
Title: Ｘａ因子阻害剤およびアスピリン、組織プラスミノーゲンアクチベータ（ＴＰＡ）、ＧＰＩＩｂ／ＩＩＩａ拮抗剤、低分子量ヘパリンまたはヘパリンの組合せ使用による血栓症の治療
IPC: A61K45/06
Filed: 2000-03-10
Abstract: (57)【要約】
哺乳類における血栓症を治療する方法であって、（ｉ）Ｘａ因子阻害剤および（ｉｉ）アスピリン、ＴＰＡ、ＧＰＩＩｂ／ＩＩＩａ拮抗剤、低分子量ヘパリンおよびヘパリンからなる群から選択される化合物の組合せを治療上有効量投与することを含み、（ｉ）および（ｉｉ）の少なくとも１つの用量が治療以下用量である方法が提供される。好ましくは、上記（ｉ）および（ｉｉ）の組合せは相乗効果を提供する。
Patent JP-2002540595-A (JP)
Title: 複合部品及びその製造方法
IPC: H01F7/02
Filed: 2000-03-08
Abstract: (57)【要約】
支持体（１）と磁性体（２）とからなる複合部品を製造する方法において、支持体（１）を、鉄を含む合金をベースとする粉末から粉末冶金法で作り、その上に希土類元素に富んだ合金をベースとする磁性体（２）を置き、次いで両者を炉（３）において焼結する。焼結時、支持体内に侵入する溶融液相が生じ、これが冷却後支持体内に埋め込んだアンカーとしての機能を果たすため、支持体（１）と磁性体（２）との間に強固な結合が生ずる。
Patent JP-2002540152-A (JP)
Title: Ｚ−スチリルスルホン抗癌剤
IPC: C07C323/07
Filed: 2000-03-30
Abstract: (57)【要約】
式（Ｉ）の（Ｚ）−スチリルベンジルスルホンは抗癌剤として有用である。
【化１】
 前記式中、Ｒ 1 は水素、クロロ及びニトロから成る群から選択され；Ｒ 2 は水素、低級アルキル、低級アルコキシ、クロロ、ブロモ、ヨード及びフルオロから成る群から選択され；そして、Ｒ 3 及びＲ 4 は独立して水素、低級アルキル、ニトロ、クロロ、ブロモ、ヨード及びフルオロから成る群から選択され；ここで、Ｒ 1 又はＲ 2 のうち少なくとも一方は水素であることを条件とする。対応する（Ｚ）−スチリルベンジルスルフィドは生物学的に活性な（Ｚ）−スチリルベンジルスルホンの調製において有用である。
Patent JP-2002540284-A (JP)
Title: 水希釈可能な塗料
IPC: C09D175/06
Filed: 2000-03-03
Abstract: (57)【要約】
本発明は、ポリエステル、ポリウレタン、アミノプラスト樹脂ならびにラッカーに常用の他の添加剤および助剤を含有する水希釈可能な塗料に関し、この場合、使用されるポリウレタンは、多数の有利に２つの異なるポリウレタン化合物（Ａ、Ｂ）からなる混合物であり、有利に１０００〜３００００の分子量および有利に５〜２０ｍｇＫＯＨ／ｇの酸価を有し、有利にイソシアネート基を有するプレポリマーを反応させることによって得ることができる。
Patent JP-2002542385-A (JP)
IPC: A23L29/20
Filed: 2000-04-10
Abstract: The present invention relates to a heteropolysaccharide (HP) characterized in that it can be obtained by fermentation of a medium comprising at least one strain of Pseudomonas sp I-2054 (or DSM 12295), one of the recombinants thereof or the mutants thereof and a source of carbon which can be assimilated by said strain, one of the recombinants thereof or one of the mutants thereof. The invention also relates to a method for the production and use of said heteropolysaccharide as a thickening agent and/or gelling agent.
Patent JP-2002544663-A (JP)
IPC: H01L21/677
Filed: 2000-04-13
Abstract: A device ( 10 ) for handling substrates ( 11 ) inside and outside a clean room ( 15 ) is provided with a locking transfer device ( 17 ), by which means a substrate cassette ( 12 ) that is accommodated in a box ( 13 ) in clean-room conditions can be removed from or placed in said box ( 13 ); and with a first handling device ( 51 ), by which means the substrates ( 11 ) can be placed in or removed from the cassette ( 12 ). According to the invention, a storage area ( 20 ) for a plurality of cassette boxes ( 13 ) is positioned on or above the clean room ( 15 ) and the locking transfer device ( 17 ) is provided between the storage area ( 20 ) and the clean room ( 15 ), so that various work and production steps can be combined in such a way as to save space.
Patent JP-2001251103-A (JP)
Title: Microwave multiplexer having interval adjustment manifold
Inventor: FIEDZIUSZKO S JERRY
IPC: H01P11/00
Filed: 2001-01-05
Abstract: PROBLEM TO BE SOLVED: To provide a method for changing wavelengths to adjust the entire device by deforming the dimensions of a manifold by simulating manifold interval adjustment. SOLUTION: A series of adjustment brackets are arranged on a microwave waveguide manifold between an input waveguide and a filter coupling. The brackets restrict the manifold and are formed with an adjustment screw extending through a bracket and also mechanically connected to the manifold. Manifold dimensions are deformed by moving the adjustment screw so as to perform fine adjustment of the wavelength (λ) of a multiplexer.
Patent JP-2002207804-A (JP)
Title: Purchase totalization system
Inventor: TAKAHASHI KAZUNARI
IPC: G06Q50/00
Filed: 2001-01-09
Abstract: PROBLEM TO BE SOLVED: To provide a purchase totalization system provided with new convenience for both of a store and purchasers, especially for the purchasers, provided also with immediacy and is optimum for actual use. SOLUTION: A recorded commodity information code is read out from a commodity information code recording medium, e.g. a bar code label, attached to each commodity by a terminal, e.g. a bar code reader, of a POS system and commodity information corresponding to the commodity information code read out from a storage part of the POS system is automatically inputted to a prescribed input part of purchase totalization software.  When an operator of the POS system depresses a key for calculating a total amount, the total amount of each purchaser is calculated, the totalization result totalized by the software is transmitted to a purchaser's electronic mail address through the Internet and the purchaser automatically inputs the commodity information and price information to the prescribed input part of accounting software stored in a personal computer or the like by opening the file of the transmitted mail.
Patent JP-2002208583-A (JP)
Title: Plasma treating method
Inventor: ARITA KIYOSHI
IPC: H01L21/3065
Filed: 2001-01-10
Abstract: PROBLEM TO BE SOLVED: To provide a plasma treatment method which can realize a high etching rate in the plasma treatment of the object of treatment, which includes silicon, and which improves viewing quality without giving a milky appearance on a surface. SOLUTION: In the plasma treatment method etching the surface of a semiconductor wafer 7, the mix gas of sulfur hexafluoride and helium is used as plasma generation gas. A fluorine radical (notation *) as active matter reacting with silicon on the surface of the semiconductor wafer 7, gas-like SiF4 (notation ○) generated by reaction and the compound SFn (notation) of fluorine and sulfur are removed by helium gas as carrier gas. The drop of the etching rate due to the re-adhesion of a reactive product and the drop of viewing property due to the dispersion of etching can be prevented.
Patent JP-2002208586-A (JP)
Title: Plasma treatment apparatus with dielectric component
Inventor: KITAGAWA HIDEO
IPC: H05H1/46
Filed: 2001-01-11
Abstract: PROBLEM TO BE SOLVED: To prevent a sudden temperature rise and a change in dielectric characteristics. SOLUTION: In the dielectric component which is used so as to be exposed to plasma light and which is composed mainly of aluminum nitride, the concentration of oxygen atoms contained in an aluminum nitride crystal is 0.1 atomic % or less.
Patent JP-2002212467-A (JP)
Title: Recording liquid and image recording method
Inventor: FUJIWA TAKAAKI
IPC: C09D11/00
Filed: 2001-01-15
Abstract: PROBLEM TO BE SOLVED: To provide a recording liquid which has a high image density, gives an image free from blur or penetration on recording paper and excellent in water resistance, and is excellent in delivery stability; and an image recording method using the same. SOLUTION: This recording liquid contains a colorant, water, and fine self- crosslinking resin particles. The resin particles are prepared as an aqueous resin composition by polymerizing 0.5-15 wt.% polymerizable unsaturated monomer having an alkoxysilyl group and another polymerizable unsaturated monomer in solution, adding water to the resultant resin solution to emulsify it, and removing the polymerization solvent. The image recording method uses the recording liquid.
Patent JP-2002212175-A (JP)
Title: New compound
Inventor: KAWABATA JUN
IPC: A61P39/06
Filed: 2001-01-16
Abstract: PROBLEM TO BE SOLVED: To provide a new compound and its salt having antioxidation activity and usable as a food additive. SOLUTION: The objective compound is expressed by chemical formula 1. The compound can be produced by reacting an aqueous solution of caffeic acid with sodium periodate or an enzyme, etc.
Patent JP-2002216617-A (JP)
Title: Manufacturing method for plasma display device
Inventor: YAMASHITA KATSUYOSHI
IPC: H01J11/26
Filed: 2001-01-17
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method for address electrodes of a plasma display panel wherein a forming process of the address electrodes is simple, a forming process of a minute pattern is easy, and cost up due to inspections of a circuit breaking or shorting and due to corrections of them can be saved. Prior art for manufacturing the address electrodes of the plasma display panel is a photolithographic process consisting of exposing, developing and printing, or is a process of forming a pattern by printing conductive paste using a screen printing method. SOLUTION: Base structures of the address electrodes are formed over whole surface within a display area, and bulkheads are formed on the base structures. After that the base structures and the bulkheads are printed. This printing results in electrically nonconducting characteristics of them. The address electrodes which control discharges are formed through these processes.
Patent JP-2002210867-A (JP)
Title: Laminated film and manufacturing method therefor
Inventor: YAMAGATA SHINICHIRO
IPC: B32B15/085
Filed: 2001-01-18
Abstract: PROBLEM TO BE SOLVED: To provide a laminated film which is obtained at a low cost and shows superb adhesion between an aluminum layer and a polyolefin layer, in a laminate of the aluminum layer formed of an aluminum foil and an aluminum vapor-deposited film and the polyolefin layer as well as a manufacturing method for the laminated film. SOLUTION: This laminated film is formed of the aluminum layer and the polyolefin layer laminated on one of the sides of the former. The polyolefin resin constituting the polyolefin layer has at least a polar component or hydrogen bonding component of a surface free energy and is laminated to the aluminum layer after being brought into contact with a resin sheet in a molten state. Also the manufacturing method for the laminated film is provided.
Patent JP-2002217821-A (JP)
Title: Mobile object monitoring device
Inventor: SEKI SHINJI
IPC: H04W8/00
Filed: 2001-01-18
Abstract: PROBLEM TO BE SOLVED: To provide a mobile object monitoring device, capable of monitoring mobile objects with high accuracy, even if the mobile object moves fast. SOLUTION: A receiving processor 120 fetches mobile object information, including the moving speeds and movement locations of a plurality of mobile objects 10 moving in a prescribed wide area 110 to be monitored. The receiving processor 120 transmits the mobile object information to a monitor display device 130 via a network 140. The receiving processor 120 changes the transmission period of the mobile object information according to the moving speeds of the mobile objects 10.
Patent JP-2002219941-A (JP)
Title: Device for opening/closing wing of motor truck
Inventor: SUGIMOTO KATSUMI
IPC: B60J7/08
Filed: 2001-01-23
Abstract: PROBLEM TO BE SOLVED: To provide a device for opening/closing a wing with a simple structure needing little maintenance and using a spring and a link mechanism for allowing providing necessary and sufficient moment to the wing according to a rotation angle of the wing. SOLUTION: The device is contained inside a guard frame 2 at closing of the wing 1 and has the spring 5 arranged on an upper part of the guard frame 2 and supported on a car body at one side for generating an energizing force for driving the wing 1, and the link mechanism 6 for transferring the energizing force of the spring 5 to the wing 1. An acting point of the link mechanism 6 for the wing 1 is shifted with rotation of the wing 1.
Patent JP-2002222685-A (JP)
Title: Flexible terminal
Inventor: SEKINO KIYOSHI
IPC: H01R13/533
Filed: 2001-01-25
Abstract: PROBLEM TO BE SOLVED: To provide a flexible terminal suitable for wiring inside an engine room of an automobile used under harsh conditions, excellent in corrosion resistance and heat resistance. SOLUTION: With the flexible terminal, with both ends of a conductive part 2 being formed by braiding or bunch-stranding a number of conductive wire rods 1 fixed at a terminal part 3, the conductive part 2 is made of braided wires or bunch-stranded wires of Ni wire rods and the terminal part 3 is a flexible terminal made of SUS material. Both the Ni wire rods for the conductive part 2 and the SUS material for the terminal part 3 are superior in corrosion resistance and heat resistance, and moreover, free of damages due to peeling off of a plated layer which they do not possess, and that they have little fear of electric corrosion, since they have similar ionization tendency. Therefore, they are suitable for wiring inside an engine room of an automobile used under severe conditions.
Patent JP-2002228827-A (JP)
Title: Optical filter and plasma display panel
Inventor: HARADA TORU
IPC: H01J11/44
Filed: 2001-01-30
Abstract: PROBLEM TO BE SOLVED: To obtain an optical filter with excellent lightfastness. SOLUTION: In the optical filter with a filter layer containing a dye and a polymer binder on a transparent supporting body, a salt composed of an anionic dye and silver ion is used as the dye.
Patent JP-2002224632-A (JP)
Title: Method and apparatus for cleaning surface of substrate
Inventor: FUJII TOSHIAKI
IPC: B08B7/00
Filed: 2001-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a cleaning apparatus and a cleaning method by which the tainted surface of a substrate can be cleaned. SOLUTION: This method for cleaning the tainted surface of the substrate 3 comprises a step to apply high-frequency energy 4 to the tainted surface of the substrate 3 and a step B to collect/remove the contaminants generated from the surface of the substrate by the application of high-frequency energy. The step B can be carried out by using a contaminant collecting/removing means in which at least one of an adsorbing material, an ion exchange fiber, a photocatalyst and a photoelectron is used.
Patent JP-2001216425-A (JP)
Title: System and method for managing data of visitor
Inventor: KIN EIBAI
IPC: G06Q50/10
Filed: 2001-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a management system capable of providing data to the participant enterprises of an exhibition or the like in real time together with the real time collection and classification of data on the concerned field of a visitor by connecting information on the participant of the exhibition or the like with a specified booth that this visitor visits. SOLUTION: This system is composed of an RF card recording the personal information of a visitor, an RF card reader provided in each of booths for reading the information of the participant, who visits the booth, a host computer for linking and managing the data of the visitor and data corresponding to the booth based on the information of visit inputted from the RF card reader, and a device for transferring the information of the visitor to the enterprise corresponding to the booth. Thus, unmanned management is enabled in the entering/leaving control of visitors, the number of persons can be grasped by days of the week and by time bands corresponding to visitors and the visitors can be automatically managed by the participant enterprises.
Patent JP-2002227296-A (JP)
Title: Framework of structure
Inventor: YOSHINAGA KAZUATSU
IPC: E04B1/36
Filed: 2001-01-31
Abstract: PROBLEM TO BE SOLVED: To provide the framework of a structure capable of freely selecting usage and floor plan in response to the change of social conditions and the change and preference of the family make-up of a tenant in not only design modification during construction but also after construction. SOLUTION: Side columns 1 are arranged at prescribed intervals on the outer periphery of a framework in a girder direction, and inner columns 2 are arranged in the inside of each side column 1 respectively. Beams 3, 4 are stretched between the side columns 1, 1 in both the directions of the girder direction and the span direction, and the beam 4 are stretched between the inner columns 2, 2 and between the inner column 2 and the side column 1 in only the span direction. Furthermore, seismic isolators 5 are arranged on the column leg part of each side column 1 respectively.
Patent JP-2002226296-A (JP)
Title: Method for manufacturing silicon single crystal
Inventor: SAKURADA MASAHIRO
IPC: C30B29/06
Filed: 2001-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing no defect silicon single crystal under a steady condition wherein at least defects such as OSF, FPD and LEP are not observed in the whole surface of a wafer which is obtained by slicing the grown silicon single crystal. SOLUTION: The silicon single crystal by Czochralski method is manufactured under the condition that the crystal is grown in a region in which at least defects such as OSF, FPD and L/D are not observed in the whole surface of the sliced wafer of the crystal and the crystal is grown by controlling an average cooling rate to >=1 deg.C/min when the crystal passes through a temperature range wherein a void is formed by aggregation of vacancy pore defect.
Patent JP-2002223614-A (JP)
Title: Vegetable transplanter
Inventor: TAKEYAMA TOMOHIRO
IPC: A01C11/02
Filed: 2001-02-01
Abstract: PROBLEM TO BE SOLVED: To accurately take out a seedling with a simple structure of seedling takeout claws in a vegetable transplanter for taking out the seedling from a seedling-carrying platform with the seedling takeout claws. SOLUTION: This vegetable transplanter is obtained by installing a seedling takeout part (16) for taking out two seedlings for one row from a seedling- carrying platform (21) with the seedling takeout claws (23) in sets of two claws different in phase by 180 deg. during one rotation of a rotary case (34) and using an intermittent gear in a transmission gear system (38) between a case driving shaft (37) in a rotary case (34) and a claw oscillating shaft (48) so as to temporarily stop the oscillating operation of the seedling takeout claws (23) during one rotation of the rotary case (34).
Patent JP-2002227457-A (JP)
Title: Structure for preventing circumferential turning of horizontally laid-across member
Inventor: NAKAJIMA TETSUNORI
IPC: E01F15/04
Filed: 2001-02-01
Abstract: PROBLEM TO BE SOLVED: To provide a structure for preventing circumferential turning of a horizontally laid-across member, which prevents damage to a surrounding landscape and has favorable safety, economy and workability. SOLUTION: In the structure 10 for preventing the circumferential turning of the horizontally laid-across member 14, cylindrical mounting fittings 12, respectively, are fixed to a plurality of erected poles 11 by a headed external thread 13 passing through the mounting fitting 12, and an end of the substantially circular cross-section member 14 for coupling the adjacent poles 11 together is fitted into the mounting fitting 12. The end of the member 14 is cut obliquely, and an inclined end 15 of the member 14 is brought into substantial contact with the external thread 13.
Patent JP-2002230442-A (JP)
Title: System, method, and device for information rental, and computer-readable storage medium
Inventor: OMURA HIROSHI
IPC: G06Q50/00
Filed: 2001-02-01
Abstract: PROBLEM TO BE SOLVED: To enable a user to use desired information on a rental basis. SOLUTION: An information center 1 rents, e.g. music information to a user terminal up to a specified time limit at a request from the user terminal 3, and when the specific time limit is reached, the information center 1 instructs the user terminal 3 to inhibit use of the rented information. When the user terminal 3 sends a rental time-limit change request to the information center 1 before the rental time limit is reached, the information center 1 makes charge adjustments, so that the set rental time limit is changed and the charge is also changed.