baber/WOPTO huggingface dataset:
Patent JP-2022190697-A (JP)
Title: cooling tower
Inventor: YASUI HIROSHI
IPC: F28C1/02
Filed: 2022-06-14
Abstract: To provide a cooling tower which can enhance the reliability of water spraying while securing the homogeneity of water spraying to a filling material, and can enhance the efficiency of work such as maintenance by having a water spray part for spraying water to a filling material as a fixed-type simple water spray mechanism.SOLUTION: A plurality of fixed-type water spray pipes 41 are arrayed in an upper part of a tower body 10 as a water spray part 40 for a filling material 20. A water distribution tank 30 having an atmospheric air release structure is arranged on an inlet side of the water spray pipe 41, and circulation water which has been once introduced into the water distribution tank 30 is made to flow into the water spray pipes 41 and water spraying to the filling material 20 is performed as a natural flow. Thus, supply of circulation water to the water spray pipes 41 from the water distribution tank 30 and water spraying from the water spray pipes 41 are nof affected by variations in a flow of circulation water which is made to flow back to a cooling tower. Even with the water spray pipes in a fixed state, circulation water can reach each part of a preset filling material to be water-sprayed.SELECTED DRAWING: Figure 5
Patent JP-2022126726-A (JP)
Title: Information recording body, medium, read-out device, program, and read-out method
IPC: B42D25/30
Filed: 2022-06-14
Abstract: PROBLEM TO BE SOLVED: To provide an information recording body which is devised to easily determine a read-out angle of embedded information. 
     SOLUTION: An information recording body 30 has a composite image including an image C1 and an image C2 formed on the image C1, wherein the image C1 and the image C2 are different pattern images created by a specific rule, and are configured so that reflected light quantities are different depending on the observation angle, and as for the composite image, at least one image of the image C1 and the image C2 can be recognized depending on the observation angle, and the composite image has an angle specific region formed using a material having the same reflected light quantity as that of the image C2. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023183626-A (JP)
Title: 現像装置および画像形成装置
IPC: G03G15/08
Filed: 2022-06-16
Abstract: 【課題】規制ブレードにより高い帯電付与機能を持たせることでトナーの帯電不足を抑制する。【解決手段】現像装置は、トナーからなる一成分現像剤を収容する現像容器と、外周面にトナーを担持して回転することにより、像担持体にトナーを供給する現像ローラーと、外周面に接触することにより、外周面に形成されるトナー層の層厚を調整する規制ブレードと、を備え、規制ブレードは、現像容器に一方端部が固定され、他方端部が外周面上に配置され、他方端部のうち先端よりも一方端部側の部分を外周面に接触させ、トナーは、トナーコアと、トナーコアを被覆するシェル層と、を有し、シェル層には、トナーとは逆極性の外添剤が外添されており、外添剤の遊離率は、２５％以上６５％以下である。【選択図】図５
Patent JP-2023010605-A (JP)
Title: System and method for controlling temperature in three-dimensional (3d) printer
Inventor: JASON M LEFEVRE
IPC: B22F12/70
Filed: 2022-06-17
Abstract: To provide a 3D printer with an improved system for controlling a temperature of a 3D part during a printing process.SOLUTION: A printer includes a heat control device 160 configured to prevent a temperature of a part that is printed by the printer from decreasing by more than about 5°C as a height of the part increases from about 0 mm to about 30 mm. The heat control device 160 includes a gas curtain source that is configured to generate a gas curtain that at least partially surrounds at least a portion of the part.SELECTED DRAWING: Figure 1
Patent JP-2024000827-A (JP)
Title: エレベータ給電システム
IPC: H02J9/06
Filed: 2022-06-21
Abstract: 【課題】停電時に、制御盤と乗りかご制御装置との間の無線通信をより長い時間行うことができるエレベータ給電システムを提供する。【解決手段】エレベータ給電システム（１００）は、乗りかご（２０）に設けられ、エレベータシステム全体の動作を制御するエレベータ制御盤（１０）と無線通信を行う乗りかご制御装置（２１）と、乗りかご制御装置（２１）に電力を非接触で給電する非接触給電装置（４０）と、停電時にエレベータ制御盤（１０）に給電する無停電電源装置（３０）と、を備え、非接触給電装置（４０）は、少なくとも停電時に、無停電電源装置（３０）から供給された電力を用いて給電する。【選択図】図１
Patent JP-2024002260-A (JP)
Title: 半導体集積回路
IPC: H03K17/16
Filed: 2022-06-23
Abstract: 【課題】入力電圧の切り替え時において入力電源への逆流電流の発生を防止可能な半導体集積回路を提供する。【解決手段】実施形態の半導体集積回路は、電圧ＶＧ５に応じて電圧ＶＩＮ５を出力あるいは遮断するスイッチ回路ＳＷ５と、電圧ＶＧ１２に応じて電圧ＶＩＮ１２を出力あるいは遮断するスイッチ回路ＳＷ１２と、電圧ＶＧ１２を補正し電圧ＶＧ１２ｃを出力する補正回路１２と、補正回路１２から出力された電圧ＶＧ１２ｃと、電圧ＶＩＮ５とを比較し、比較結果に基づいて電圧ＶＧ５を設定するコンパレータ１３とを備える。【選択図】図１
Patent JP-2024003965-A (JP)
Title: 農業用ハウスおよびそれに使用するテトラモジュール
IPC: A01G9/14
Filed: 2022-06-28
Abstract: 【課題】テトラモジュールを用いることで工場生産での部材調達が可能であり、モジュール以外の部材を連結部材として用いることなく、モジュールだけの組み合わせで構築することが可能となり、プレハブ化が向上し、施工を簡易かつ迅速に行え、かつ、壁および屋根が厚みのある立体トラス構造なのでハウス全体も強度もあり、安定した建物となる農業用ハウスを提供することにある。【解決手段】壁１０および屋根１１を、四面体の稜線部分を細長接合面を有するフレームで形成したテトラモジュール１′の結合で形成する立体トラス構造とした。【選択図】図１
Patent JP-2024006181-A (JP)
Title: ポンプ装置
IPC: F04D29/42
Filed: 2022-07-01
Abstract: 【課題】液化ガスを漏洩させることなく、電動機を効率よく冷却することができる液化ガス用のポンプ装置を提供する。【解決手段】ポンプ装置は、羽根車２を有するポンプ１と、羽根車２が固定された回転軸５と、回転軸５および羽根車２を回転させるための電動機７と、電動機７の両側に配置されたポンプ側ブラケット１１および反ポンプ側ブラケット１２を備える。モータハウジング２３は、アルミニウムまたはアルミニウム合金から構成されており、モータハウジング２３の両端は、ポンプ側ブラケット１１および反ポンプ側ブラケット１２に支持されており、ポンプ側ブラケット１１および反ポンプ側ブラケット１２の線膨張係数は、モータハウジング２３の線膨張係数よりも小さい。【選択図】図１
Patent JP-2024007017-A (JP)
Title: 加工公差評価システム
IPC: G05B19/4069
Filed: 2022-07-05
Abstract: 【課題】金属加工製品の製造可能な適切な公差範囲を求めて表示することで、少なくとも手戻りコストが低減できる加工公差評価システムを提供する。【解決手段】製造プロセスデータを保持する現場用計算機と、現場用計算機２０と通信手段で接続された加工公差評価用計算機３０とを備えた加工公差評価システムであって、加工公差評価用計算機３０は、現場用計算機から製造プロセスデータを取得し、取得された製造プロセスデータと加工対象物の形状設計データに基づいて加工公差の上限側加工公差、及び下限側加工公差を求める加工公差幅評価演算ブロック３１と、物理解析から算出された加工対象物の理論加工誤差を求める理論加工誤差演算ブロック３２と、理論加工誤差演算ブロック３２で求めた理論加工誤差に対して、加工公差幅評価演算ブロック３１で求めた上限側加工公差、及び下限側加工公差を反映させて、製造可能な公差範囲を求めて表示する公差範囲表示演算ブロック３３を備えている。【選択図】図４
Patent JP-2024009493-A (JP)
Title: 車両
IPC: B62D21/00
Filed: 2022-07-11
Abstract: 【課題】  サスペンションからの荷重によってリアサイドメンバの断面形状が変形することを抑制するための技術を提供する。 
【解決手段】  車両は、前記車両の後部において前後方向に延びる一対のリアサイドメンバと、前記一対のリアサイドメンバの間を左右方向に延びるクロスメンバと、前記クロスメンバの両端部に下方から取り付けられているとともに、前記車両の後輪のサスペンションが連結されたサスペンションメンバと、前記リアサイドメンバの内部において前記前後方向と交差する向きに配置されており、前記リアサイドメンバの内面に接合されたバルクと、を備え、前記バルクは、前記前後方向に延びる前記リアサイドメンバのうち、前記クロスメンバの前記端部が連結された区間に設けられている。 
【選択図】図２
Patent JP-2022140486-A (JP)
Title: charging device
IPC: H02J7/00
Filed: 2022-07-13
Abstract: PROBLEM TO BE SOLVED: To provide a charging device that can suitably cool a battery pack being charged and a circuit component for charging during charging. 
     SOLUTION: A charging device 1F includes fans 15 and 16, a substrate 4, and a circuit component for charging on the substrate 4, in an internal space formed by an upper case 2 and a lower case 3. A battery pack mounting portion is provided on the upper surface of the upper case 2. A first air flow k1 that is generated by the fan 15 is sucked from a wind window 6, cools the circuit component for charging on the substrate 4, flows toward a wind window 8, and is exhausted from the wind window 8. A second air flow k2 that is generated by the fan 16 is sucked from a wind window 10, flows toward a wind window 7 without passing through the circuit component for charging on the substrate 4, and is exhausted from the wind window 7. In FIG. 12, the fan 15 is structured so that the direction can be reversed so that the wind window 7 serves as an intake port and the wind window 10 serves as an exhaust port. 
     SELECTED DRAWING: Figure 12 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2022160444-A (JP)
Title: Alkaline stable immunoglobulin-binding proteins
IPC: C07K14/31
Filed: 2022-07-13
Abstract: PROBLEM TO BE SOLVED: To provide an affinity matrix comprising an alkaline stable immunoglobulin (Ig)-binding protein. 
     SOLUTION: Provided is an Ig-binding protein comprising one or more Ig binding domains. At least one Ig binding domain comprises an amino acid sequence selected from specific sequences and comprises at least three selected from the following four positions consisting of: (i) isoleucine at position 1; (ii) an amino acid selected from alanine, glutamic acid, or isoleucine at position 11; (iii) an amino acid selected from arginine or isoleucine at position 35; and (iv) leucine at position 42. Also provided is an affinity matrix comprising an alkaline stable immunoglobulin-binding protein. 
     SELECTED DRAWING: Figure 4 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023018664-A (JP)
Title: Large two-stroke turbocharged uniflow scavenged internal combustion engine, and method for operating the same
Inventor: MARK HOFFMANN
IPC: F02D21/08
Filed: 2022-07-20
Abstract: To provide a large two-stroke turbocharged internal combustion engine improved in control of combustion chamber conditions during compression.SOLUTION: A large two-stroke turbocharged internal combustion engine includes a controller. The controller: monitors operating conditions and determines when an engine operates in steady state operating conditions; in the steady state conditions, for each combustion chamber individually, controls an air-fuel ratio as a function of operating conditions and performs control so that the value of the air-fuel ratio becomes below a known operation condition dependent critical value by a margin initially set to a first value (p1); individually for each combustion chamber, gradually reduces the margin in decrements from an actual value towards a second value (p2); individually for each combustion chamber, monitors misfire events, partial misfire events, and pre-ignition events; and when detecting such events, increases the margin in increments from the actual value towards the first value until such events are not detected. A corresponding method is also disclosed.SELECTED DRAWING: Figure 9
Patent JP-2023122518-A (JP)
Title: Inner temperature measuring device, inner temperature measuring method, and program
Inventor: KODERA Yuya
IPC: A61B5/01
Filed: 2022-08-01
Abstract: To provide an inner temperature measuring device that can be manufactured at low costs, an inner temperature measuring method, and a program.SOLUTION: A deep part thermometer (100) includes a measuring unit (1) and a control unit (6). The measuring unit (1) includes a thermoelectric element (112) for measuring a heat flow rate HF from inside a subject, which is a measured object, and a temperature sensor (111) for measuring a temperature T of a surface on the subject's side of the thermoelectric element (112). The measuring unit (1) outputs a heat flow rate HF1 measured by the thermoelectric element (112), a temperature T1 measured by the temperature sensor (111) at the heat flow rate HF1, a heat flow rate HF2 different from the heat flow rate HF1 measured by the thermoelectric element (112), and a temperature T2 measured by the temperature sensor (111) at the heat flow rate HF2. The control unit (6) obtains a deep part temperature Ti for the subject on the basis of the heat flow rate HF1, the temperature T1, the heat flow rate HF2, and the temperature T2 input from the measuring unit (1).SELECTED DRAWING: Figure 1
Patent JP-2023109675-A (JP)
Title: Conveyance device and image forming device
Inventor: KENMITSU TSUGUYORI
IPC: B65H5/06
Filed: 2022-08-03
Abstract: To suppress a positional deviation in a width direction of a roll-shaped recording medium.SOLUTION: An image forming device 1 has a plurality of roller members for stretching a roll-shaped cloth B, and feeds and conveys the roll-shaped cloth B stretched around the roller member, wherein the roller member has a scale 50 for alignment with a fabric A provided at a predetermined position in a width direction.SELECTED DRAWING: Figure 2
Patent JP-2022153653-A (JP)
Title: Compositions for improving health-related quality of life of rheumatoid arthritis patients
IPC: A61P29/00
Filed: 2022-08-05
Abstract: PROBLEM TO BE SOLVED: To provide compositions and methods of for improving the health-related quality of life of a subject suffering from rheumatoid arthritis. 
     SOLUTION: The invention provides a pharmaceutical composition comprising an antibody for use in a method for improving the quality of sleep of a subject suffering from rheumatoid arthritis. The antibody binds to human interleukin-6 receptor (hIL-6R), and comprises a heavy chain variable region of a specific sequence and a light chain variable region sequence of another specific sequence. The antibody is administered at 150 mg or 200 mg every two weeks. The administration of the antibody improves the quality of sleep. 
     SELECTED DRAWING: None 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2022164913-A (JP)
Title: Liquid jet device, maintenance method of the liquid jet device
IPC: B41J2/165
Filed: 2022-09-05
Abstract: PROBLEM TO BE SOLVED: To provide a liquid jet device and a maintenance method of the liquid jet device of which a lip part can be cleaned. 
     SOLUTION: A liquid jet device includes: a liquid jet part which has a nozzle surface with a nozzle arranged; a suction cap 72 which carries out capping for surrounding and forming a space for opening the nozzle when contacting with a nozzle surface; a capping mechanism 73 which moves the suction cap 72 between a capping position in capping and a separate position separated from the nozzle surface; a cleaning liquid supply mechanism 74 which supplies a cleaning liquid in the suction cap 72; an opposite part 46 which is structured so as to be opposite to a lip part 79 of the suction cap 72 which contacts with the nozzle surface in capping; and a control part which controls the capping mechanism 73 and the cleaning liquid supply mechanism 74 to make a state that the lip part 79 is opposite to the opposite part 46 with a predetermined clearance formed with the opposite part 46 and a state that the cleaning liquid supplied into the suction cap 72 contacts with the opposite part 46. 
     SELECTED DRAWING: Figure 10 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023011549-A (JP)
Title: Therapeutic or prophylactic medicament for cell proliferative disorder, comprising coumarin derivative
IPC: A61K31/506
Filed: 2022-09-08
Abstract: PROBLEM TO BE SOLVED: To provide a therapeutic or prophylactic medicament for cell proliferative disorder. 
     SOLUTION: The medicament comprises as an active ingredient a compound represented by formula (I) or a pharmacologically acceptable salt thereof and is used on the basis of a specific administration regimen so that (a) the compound or the salt is administered twice a week for 3 weeks; (b) administration of the compound or the salt is stopped for a subsequent week; and (c) then, the steps (a) and (b) are repeated at least once. The medicament is used in combination with dexamethasone. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023009052-A (JP)
Title: Universal laryngoscope blade
IPC: A61B1/267
Filed: 2022-10-17
Abstract: PROBLEM TO BE SOLVED: To provide universal laryngoscope blades and associated methods. 
     SOLUTION: A universal laryngoscope blade includes a blade body. The blade body includes a first end and a second end. The second end is configured for insertion into a larynx. The universal laryngoscope blade further includes a viewer connected to the blade body. The viewer is configured to function independently of each of a conventional handle and a fiber-illuminated handle. The universal laryngoscope blade further includes a blade fitting disposed at the first end of the blade body. The blade fitting is removably connectable to, one at a time, each of a hook-on fitting of the conventional handle and a hook-on fitting of the fiber-illuminated handle. The hook-on fitting of the conventional handle has at least one physical dimension that is different from at least one physical dimension of the hook-on fitting of the fiber-illuminated handle. 
     SELECTED DRAWING: Figure 1A 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2022191483-A (JP)
Title: Production method of negative electrode for secondary battery, and production method of secondary battery
IPC: H01M10/058
Filed: 2022-10-25
Abstract: PROBLEM TO BE SOLVED: To provide a negative electrode for a secondary battery, which is large in energy density, and hard to lower in the capacity even if it is repeatedly charged and discharged, and a secondary battery, and production methods thereof. 
     SOLUTION: The above problem is solved by a negative electrode for a secondary battery, which comprises: a negative electrode active material layer containing at least a silicon-based active material and a binder; and a negative electrode current collector. The negative electrode for a secondary battery has such a structure that the silicon-based active material has a lithium-containing amorphous region, and islands of lithium carbonate are distributed in the amorphous region. The negative electrode for a secondary battery is produced by a method comprising: a step of forming a negative electrode active material layer containing a Si-based active material and a binder; and a pre-doping step of bringing a Li-containing electrolyte solution into contact the negative electrode active material layer, applying a pressure, and introducing Li ions by an electrochemical method. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023015141-A (JP)
Title: Method and system for distributed data storage with enhanced security, resilience, and control
IPC: G06F21/60
Filed: 2022-10-27
Abstract: PROBLEM TO BE SOLVED: To disclose a method and system for encrypting and reconstructing data files, including related metadata. 
     SOLUTION: This method involves separately encrypting data and metadata as chaining processes and integrating a plurality of encryption/encoding techniques together with strategic storage distribution techniques and parsing techniques which results in integrated benefits of collection of techniques. As disclosed, content data is separated from its metadata, encryption keys may be embedded in the metadata, and in a content data encryption chaining process, the method can perform chunking, encryption, sharding, and store content data and shards separately and store metadata in a flexible, distributed, and efficient manner, at least in part to assure improved resiliency. The processes are preferably implemented locally, included at the site of the content data or a proxy server. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023070126-A (JP)
Title: Silicon carbide wafer and method of manufacturing same
Inventor: KYUN MYUNG-OK
IPC: C30B23/06
Filed: 2022-11-01
Abstract: To provide a silicon carbide wafer having improved mechanical properties, excellent crystallinity, and fewer defects, and a method of manufacturing the same.SOLUTION: A silicon carbide wafer includes an upper face 100 and a lower face. The upper face includes a first target region TR being within 85% of a radius of the upper face based on a center CP of the upper face. A first peak omega angle measured at intervals MD of 15 mm in a first direction in the first target region is within -1° to +1° based on a peak omega angle measured at the center of the upper face. The first direction is a [1-100] direction which passes through the center of the upper face.SELECTED DRAWING: Figure 2
Patent JP-2023156972-A (JP)
Title: Composite of hydrotalcite compound and amino acid
Inventor: SUGIYAMA HIROYUKI
IPC: C01F7/785
Filed: 2022-11-11
Abstract: To provide a composite of a hydrotalcite compound and an amino acid, with the composite having a high aspect ratio while allowing for control of coloration.SOLUTION: The present disclosure relates to a composite that includes a hydrotalcite compound and an amino acid. The composite has an aspect ratio of 85 or more. An Y.I. value of the composite is 0-5. The Y.I. value indicates yellowness. A content of the amino acid in the composite is more than 0 mass% and equal to or less than 10.0 mass%. The content of the amino acid is a content with respect to the total mass of the composite.SELECTED DRAWING: Figure 2
Patent JP-2023088852-A (JP)
Title: Aqueous ink, ink cartridge, and inkjet recording method
Inventor: KUSADA MUTSUKI
IPC: B41M5/00
Filed: 2022-11-21
Abstract: To provide an aqueous ink that enables recording of an image having excellent scratch resistance and beading resistance.SOLUTION: An aqueous ink contains: a pigment; a compound (A) represented by the general formula (1); and a compound (B) represented by the general formula (2). A weight average molecular weight of the compound (A) is 1,500 or more and 7,500 or less. A ratio of a content A (mass%) of the compound (A) based on the total mass of the aqueous ink to the sum of the content A (mass%) of the compound (A) and the content B (mass%) of the compound (B) based on the total mass of the aqueous ink is 0.40 or less.SELECTED DRAWING: None
Patent JP-2023024454-A (JP)
Title: Peeling detection label
IPC: C09J7/29
Filed: 2022-11-22
Abstract: PROBLEM TO BE SOLVED: To provide a peeling detection label in which no adhesive residue on an adherend occurs. 
     SOLUTION: A peeling detection label is a laminate satisfying the following requirement (1), in which a support, a pattern layer formed on a part of the surface of the support, and an adhesive laminate having at least an adhesive layer (X) and a base material layer (Y) are laminated in this order, where the elastic modulus of the base material layer (Y) is 10 MPa or more and 800 MPa or less. Requirement (1): when the peeling detection label is peeled from an adherend after attaching the peeling detection label to the adherend, interfacial peeling is generated between the support and the pattern layer, so that it is possible to visually detect the presence or absence of peeling of the peeling detection label from the adherend. 
     SELECTED DRAWING: None 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023022146-A (JP)
Title: Information processing device, method and program for determining installation position of radio wave reflection member
IPC: H04W16/18
Filed: 2022-11-22
Abstract: PROBLEM TO BE SOLVED: To provide an information processing device and a direction capable of determining an installation position of a radio wave reflection member so as to make a radio wave reach, with prescribed power, a target reception point located outside a viewable area from a transmission point of the radio wave of a high frequency band without performing a site survey of high cost. 
     SOLUTION: An information processing device sets a plurality of radio wave propagation paths involving one time reflection between a target reception point located outside a viewable area to a radio wave transmission point in a target area and the transmission point on the basis of map information of the target area, estimates a reception characteristic at the target reception point of each of the plurality of radio wave propagation paths, selects the radio wave propagation paths in descending order of reception characteristics at the target reception point to calculate the total value of the reception characteristics, and determines an installation position of a radio wave reflection member on the basis of a selection result of one or more radio wave propagation paths selected by the time the total value becomes higher than predetermined target quality. 
     SELECTED DRAWING: Figure 4 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023025113-A (JP)
Title: System and method for harvesting data associated with fraudulent content in networked environment
IPC: G06Q30/0601
Filed: 2022-11-25
Abstract: PROBLEM TO BE SOLVED: To provide, according to an exemplary embodiment of the present disclosure, a system, a method and a non-transitory computer-readable medium for identifying fraudulent content. 
     SOLUTION: A system, a method and a non-transitory computer-readable medium harvest, parse, and analyze item identifiers in networked content. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023025131-A (JP)
Title: Tire rubber composition and tire
IPC: C08L7/00
Filed: 2022-11-29
Abstract: PROBLEM TO BE SOLVED: To provide a tire rubber composition, which is a rubber composition containing silica, the composition having excellent fuel economy and fracture strength and also satisfying both of moldability (ensured molding time) and a vulcanization rate (shortened vulcanization time), and a tire having a tire member composed of the rubber composition. 
     SOLUTION: A tire rubber composition contains, based on 100 pts.mass of a rubber component containing styrene-butadiene rubber 50 mass% or more, silica 80 pts.mass or more, a plasticizer 30 pts.mass or more, and aminoguanidine weak acid salt. 
     SELECTED DRAWING: None 
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