baber/WOPTO huggingface dataset:
Patent JP-2019512697-A (JP)
Title: デジタルホログラフィ顕微鏡検査および無傷の（ｕｎｔｏｕｃｈｅｄ）末梢血白血球を用いる高精度の５部鑑別（５−ｐａｒｔ  Ｄｉｆｆｅｒｅｎｔｉａｌ）
IPC: G01N15/14
Filed: 2017-01-26
Abstract: 本発明は、マイクロ流体およびデジタルホログラフィ顕微鏡検査を使用する、媒体中の少なくとも１つの細胞の細胞タイプのマーカフリー検出のための改良された方法、ならびに特に方法を実行するためのデバイスに関する。
Patent JP-2019510042-A (JP)
Title: 生細胞組成物及び生細胞組成物に関連する方法
IPC: A61K47/36
Filed: 2017-03-28
Abstract: 生細胞組成物及び関連の調製、維持、及び使用の方法が開示されている。生細胞組成物は、指定されたレベルの細胞、ヒドロキシエチルデンプン、及びジメチルスルホキシドを含有することができ、凍結保存することができる。凍結保存形態の組成物を解凍し、水性液体希釈媒質と組み合わせて、指定の又は引き下げられたレベルのジメチルスルホキシド及びヒドロキシエチルデンプンを含有する希釈生細胞組成物を調製することができる。希釈媒質はトレハロースを含有することができる。調製された希釈生細胞組成物は患者へ投与することができる。【選択図】なし
Patent JP-2019516296-A (JP)
Title: 故障検出方法及びデバイス
IPC: H04L1/00
Filed: 2016-04-08
Abstract: 本発明の実施例は、故障検出方法及びデバイスを開示する。方法は、光伝送ネットワークOTNデバイスにより、第１のOTNフレームを取得するステップであり、第１のOTNフレームは少なくとも２つのペイロード領域を含み、少なくとも２つのペイロード領域のそれぞれはペイロード検査情報及びペイロードデータを含む、ステップと、ペイロード検査情報に従って故障検出を実行するステップであり、ペイロード検査情報は、ペイロード検査情報が位置するペイロード領域のペイロードデータを検査するために使用される、ステップとを含む。本発明の実施例では、OTNフレームは少なくとも２つのペイロード領域に分割され、対応するペイロード検査情報は、各ペイロード領域で搬送され、それにより、故障検出の効率が改善される。
Patent JP-2019507252-A (JP)
Title: 自動車及び電機電子部品用銅合金材及びその製造方法
IPC: H01B13/00
Filed: 2016-07-22
Abstract: 自動車及び電機電子部品用銅合金材の製造方法。この方法によって製造された銅合金材は優れた引張強度、弾性強度、電気伝導度及び曲げ加工性を有する。 【選択図】  図１Ａ
Patent JP-2019520698-A (JP)
Title: ノズルヒータデバイスを有する分配ヘッド、システムおよび方法
IPC: H05K13/04
Filed: 2017-05-18
Abstract: 垂直方向の移動のために構成された第１スピンドルと、スピンドルに動作可能に取り付けられた第１ノズルと、分配ヘッドに取り外し可能に取り付け可能なヒータデバイスとを含む分配ヘッドが開示される。ヒータデバイスは、熱源と、第１ノズルを受け入れるように構成された開口部とを含む。熱源は、第１ノズルを周囲温度より高温に加熱するように構成される。ノズルを加熱する方法とともに組立システムがさらに開示される。【選択図】図１
Patent JP-2019518239-A (JP)
Title: 光方向転換フィルム構造体及びその製造方法
IPC: E06B5/00
Filed: 2017-05-12
Abstract: 本開示は、別のフィルムに結合した昼光方向転換フィルムなどの微細構造化光学フィルムを含む光方向転換フィルム構造体の物品及び製造方法に関する。この種のアセンブリは種々の目的に役立つ可能性がある。例えば、アセンブリは構造化フィルムを保護することができる、拡散若しくは赤外線反射などの付加的な機能性を提供することができる、及び／又はグレイジング若しくは窓ガラスなどの取付面への微細構造化光学フィルムの取り付けを容易にすることができる。
Patent JP-2019511014-A (JP)
Title: 吸音器、防音壁ならびに設計および製造のための方法
IPC: H04R7/04
Filed: 2017-02-08
Abstract: 本発明は、第１の周波数のヘルムホルツ共鳴器を形成するために、入力方向（Ｄ３）を介して外側に開口する空洞（３０、８０）を含む受動型吸音器（３、４、６、７、８）に関するものである。本発明によれば、前記吸音器は、前記ネック部を封止しないように塞ぐ位置でサスペンション（３３、４３、６１４０）によって懸架され、または保持された少なくとも１つの可動要素、すなわちウェーハ（３２、４２、６２、７２ａ、７２ｂ）をさらに含む。サスペンションとウェーハの相対的剛性は、組立体が第１の周波数とは異なる第２の周波数の「ピストン」運動の振動で共振し、この第２の周波数または周波数範囲の吸収を達成するように決定される。ハイブリッドバージョンは、吸音器の音響インピーダンスを調整するように制御されるコイル（３２４）を含む。   本発明では、各々がこのようなウェーハを受ける、穿孔を通って開口する反復構造によって作られた複数のこのような吸音器を含む防音壁と、このような吸音器または壁を設計し、製造する方法とを提案する。
Patent JP-2019519524-A (JP)
Title: 骨髄由来サプレッサー細胞のターゲティングにより癌を処置する方法
IPC: A61K31/496
Filed: 2017-05-25
Abstract: 本発明は、リンカーを介して薬物に結合した葉酸受容体結合リガンドを含む化合物を１以上使用して、癌を処置する方法に関する。より具体的に、ここに記載する発明は、骨髄由来サプレッサー細胞を標的化するために、リンカーを介して薬物に結合した葉酸受容体結合リガンドを含む化合物を１以上使用して、癌を処置する方法に関する。
Patent JP-2019527078-A (JP)
Title: ３つの位置による針の退避
IPC: A61M5/32
Filed: 2017-06-01
Abstract: 幾つかの形態では、危険要素を保護するためのシステムおよび方法が記載され、危険要素、例えば、針先が、保護退避位置、動作繰出位置および／または中間位置の間で動かされる。必要に応じ、退避位置では、危険要素がハウジングの内部に保護される。必要に応じ、繰出位置では、危険要素が露出される。必要に応じ、中間位置では、危険要素が部分的に保護されおよび／または例えばシールドによりおよび／または凹部に隠される。幾つかの形態では、シールドを損なわせることで、危険要素を退避位置へ退避させる。【選択図】図２６Ｃ
Patent JP-2019517531-A (JP)
Title: 機能化ナノ粒子によるヒト体細胞の選択された（所定の）分化細胞への直接リプログラミング
IPC: C07K17/00
Filed: 2017-06-02
Abstract: 本開示は、ヒト体細胞から目的の特殊化細胞種、例えば心臓細胞、肝細胞、血液細胞、神経細胞および他の細胞を発生させるために最初の細胞（例えば体細胞）をリプログラミングするための組成物および方法に関する。一部の実施形態では、最初の（例えば体）細胞は、ヒト細胞であり、したがって目的のヒト誘導細胞種を生成する。一部の実施形態では、組成物および方法は、生物学的活性分子（ＲＮＡ、タンパク質、ペプチドおよび他の小分子）で機能化したナノ粒子を組み込む。これらの新しく発生させた（すなわち「誘導した」）特殊化細胞は、器官機能および／または組織再生（心臓、肝臓など）を改善するため、および機能活性について薬物をスクリーニングするために有用である。
Patent JP-2019528497-A (JP)
Title: 一次情報に関する追加情報を提供する方法及びシステム
IPC: G06F13/00
Filed: 2017-01-12
Abstract: ネットワーク、好ましくはインターネットを介してアクセス可能な一次情報に関する追加情報を提供する方法が開示される。この方法は、オペレーティングシステムを実行するユーザー機器上で動作するアプリケーションが、アドレス情報を用いて一次情報にアクセスするか又は一次情報を参照するステップと、前記オペレーティングシステムが提供するシステムインターフェースを介して前記アドレス情報を抽出するステップであって、前記システムインターフェースが生成するデータオブジェクトの一部である抽出されたアドレス情報を生成する、ステップと、前記抽出されたアドレス情報を検索要素へ転送するステップと、前記検索要素が、前記抽出されたアドレス情報に基づいて追加情報を検索するステップと、さらなる処理のために前記追加情報を前記ユーザー機器へ転送し返すステップと、を含む。さらに、従属するシステム及びコンピュータプログラム製品が開示される。
Patent JP-2019075816-A (JP)
Title: Time slot communication system
Inventor: ANDREAS ROESL
IPC: H04B5/02
Filed: 2019-01-08
Abstract: To provide a system that keeps synchronized wireless tags in sleep as long as possible in order to achieve the longest possible life in the wireless tags.SOLUTION: In a system 1, communication stations 3, 4 each connected to a server 2 via a wired communication circuit (LAN) L emit, for a current time slot, a synchronization data signal including the time slot symbol. The states of wireless tags 7 to 14 are switched from a sleep state to an active state at a wakeup time, and receive the synchronization data signal in the active state. When the received time slot symbol indicates a time slot designated for each wireless tag, a new wakeup time corresponding to the next appearance of the designated time slot is defined in the subsequent time slot cycle to the current time slot cycle.SELECTED DRAWING: Figure 1
Patent JP-2020022151-A (JP)
Title: Window glass for vehicle and window glass device for vehicle
Inventor: FUNATSU SATOSHI
IPC: H01Q1/32
Filed: 2019-01-09
Abstract: To provide a window glass for a vehicle capable of securing antenna gain of VHF band, capable of improving appearance while securing field of vision, and having effect of defogging.SOLUTION: A window glass for a vehicle includes a glass plate provided with a light shielding film on the outside of the transmission region of visible radiation, a dielectric having a first face on the side facing the glass plate and a second face on the opposite side to the first face, a planar conductor provided between the glass plate and the first face, a positive electrode for connection with the planar conductor, a negative electrode for connection with the planar conductor, a feeding electrode provided on the second face side, and a ground electrode provided on the second face side. The planar conductor generates heat when a voltage is applied between the positive and negative electrodes, the feeding electrode and the ground electrode are facing the planar conductor via the dielectric so that the planar conductor receives electromagnetic wave of at least VHF band, and in the plan view, the positive, the negative electrodes, the feeding electrode and the ground electrode are superposed on the light shielding film.SELECTED DRAWING: Figure 1
Patent JP-2020112945-A (JP)
Title: Road surface condition monitoring system
Inventor: SASAKI TAKAHITO
IPC: H04N7/18
Filed: 2019-01-09
Abstract: To provide a road surface condition monitoring system capable of surely and rapidly monitoring a target area with an easy configuration.SOLUTION: A road surface condition monitoring system 100 enables reliable and rapid monitoring of a target area with an easy configuration that requires no actual measurement when grasping a flood damage situation by extracting a reference object image in the target area with a reference object image extraction part 61, estimating a water level based on the reference object image extracted by a water level estimation part 62, and determining whether or not an alarm is required from an estimation result by an alarm determination part 64.SELECTED DRAWING: Figure 1
Patent JP-2020112289-A (JP)
Title: Air conditioning passage connection structure
Inventor: OGATA MASAYUKI
IPC: F24F13/02
Filed: 2019-01-09
Abstract: To easily attach/detach air conditioning passage members to/from each other.SOLUTION: A second connection pipe 20 of a second air conditioning passage member 4 is fitted to an outer periphery of a first connection pipe 10 provided in a first air conditioning passage member 3 of an air conditioning passage connection structure 1b, and movement is regulated in a fitting direction and a drawing direction. An annular locking groove 11 is recessed in the first connection pipe 10, and a guide groove 13 is recessed from the annular locking groove 11 to a tip edge. A locking protrusion 32 provided in the second connection pipe 20 is housed in the annular locking groove 11. When the guide groove 13 and the locking protrusion 32 are shifted from each other in a circumferential direction, movement of the second connection pipe 20 is regulated in the drawing direction. When the guide groove 13 and the locking protrusion 32 coincide with each other in the circumferential direction, the locking protrusion 32 can pass through the guide groove 13.SELECTED DRAWING: Figure 2
Patent JP-2020111225-A (JP)
Title: aircraft
Inventor: ANDO TOSHIAKI
IPC: B64C27/08
Filed: 2019-01-15
Abstract: To provide an aircraft which improves thrust generation efficiency of a thrust generation part.SOLUTION: A thrust generation part 20a has a first propeller 34 and a second propeller 35 which is arranged coaxially with a rotation axis of the first propeller 34 on the lower part of the first propeller 34, and has a coaxial double inversion rotor 30 that rotates the first propeller 34 and the second propeller 35 in mutually opposite directions, a duct 40 having a first cylindrical part 41 surrounding the periphery of the first propeller 34 and a second cylindrical part 42 surrounding the periphery of the second propeller 35, and a ventilation part 50 which is provided between the first cylindrical part 41 and the second cylindrical part 42 and permits passage of air between the outside and the inside of the duct 40.SELECTED DRAWING: Figure 2
Patent JP-2020113512-A (JP)
Title: Temperature-increase control device for secondary battery
Inventor: TASHIRO HIROKI
IPC: H01M10/633
Filed: 2019-01-16
Abstract: To suppress a high-rate deterioration of a secondary battery.SOLUTION: A temperature-increase control device for a secondary battery, that controls a temperature-increase device that increases a temperature of the secondary battery, reduces a start temperature for starting a temperature increase of the secondary battery as compared that a rise amount of the resistance of the secondary battery is a prescribed value or less when the rise amount of the secondary battery exceeds a prescribed value, and controls the temperature-increase device so that the temperature of the secondary battery is increased when the temperature of the secondary battery is the start temperature or more. Thus, a high-rate deterioration of the secondary battery can be suppressed.SELECTED DRAWING: Figure 2
Patent JP-2020117857-A (JP)
Title: Elongation member, elongation member group, and local panel
Inventor: KOBAYASHI TAKAYUKI
IPC: E03F5/22
Filed: 2019-01-18
Abstract: To provide the local panel that can prevent a machine field from being submerged in water even if the machine field submerges in the water.SOLUTION: According to an embodiment, the local panel comprises a housing, a support pillar, and an increase mechanism. The housing houses an apparatus. The support pillar is located at the machine field. The increase mechanism lifts the housing with respect to the support pillar when the machine field submerges in the water.SELECTED DRAWING: Figure 1
Patent JP-2020116975-A (JP)
Title: Aircraft interior lamp
Inventor: SAWADA NARUO
IPC: B64D47/02
Filed: 2019-01-18
Abstract: To minimize damage when fire occurs in a cabin in which an aircraft interior lamp is fitted.SOLUTION: An aircraft interior lamp comprises: a light source unit 3 which is fitted to a ceiling wall 100 in which a cable insertion hole 100a is formed, and has a light source 9; a cover 2 which covers the light source; and a metal plate 4 which is positioned between the light source unit and the ceiling wall in the state covering the cable insertion hole. Thus, even if fire occurs in a cabin in which the aircraft interior lamp is fitted, flame and smoke are blocked by the metal plate, and arrival of flame and smoke at other cabin interior from the cable insertion hole is prevented, whereby damage can be minimized when fire occurs in the cabin in which the aircraft interior lamp is fitted.SELECTED DRAWING: Figure 1
Patent JP-2020120194-A (JP)
Title: Imaging apparatus, imaging method, and program
Inventor: SASAKI TAKAO
IPC: G03B15/00
Filed: 2019-01-21
Abstract: To provide a development method which prevents brightness of a composite image from varying remarkably in performing panoramic imaging of a subject whose luminance varies suddenly.SOLUTION: An imaging apparatus comprises: imaging means which takes plural images; adjustment means which applies a gradation gain to images adjacent to each other, out of plural images, on the basis of the difference in luminance between the images adjacent to each other; and composition means which generates a composite image by composing the images to which the adjustment means has applied the gradation gain.SELECTED DRAWING: Figure 2
Patent JP-2020116667-A (JP)
Title: Preventive maintenance system of machine tool
Inventor: KUROKAMI NOBORU
IPC: B23Q17/12
Filed: 2019-01-22
Abstract: To provide a preventive maintenance system of a machine tool that can mechanically and automatically perform determination of presence or absence of an abnormality which has been performed conventionally based on a sense of a worker so that the abnormality can be exactly detected earlier.SOLUTION: A preventive maintenance system of a machine tool comprises: a vibration detection part 13 that is mounted on mechanisms (4, 10 and 12) of the machine tool to detect vibrations; a sound detection part 15 that detects sound waves generated when the machine tool 1 machines a work-piece W; a servo motor current value detection part 16 that detects current values of a servo motor; an abnormality detection part 14 that detects presence or absence of an abnormality of the mechanisms of the machine tool 1 by comparing the vibrations, the sound waves and the current values of the servo motor with vibration data, sound wave data and current value data during normal time which are preliminarily set during operation of the machine tool 1; and a detection starting/finishing command setting part 18 that adds commands for a detection starting point and a detection finishing point for at least one of the vibrations, the sound waves and the current values of the servo motor to a processing program.SELECTED DRAWING: Figure 1
Patent JP-2020118218-A (JP)
Title: Sleeve valve
Inventor: NAKAJIMA YOKO
IPC: F16K3/26
Filed: 2019-01-23
Abstract: To improve maintainability while keeping compactness.SOLUTION: The present invention relates to an in-line type sleeve valve 10 in which inflow piping 1 is connected to one end of a cylindrical valve box 11 and outflow piping 2 is connected to the other end. Inside of the valve box, a cylinder 12 in which the inflow piping side is closed is provided coaxially. Within the cylinder, a sleeve valve body 13 including a number of valve holes 13c on a peripheral wall is provided movably coaxially at a downstream side. On an inner surface of the valve box from the end of the cylinder at the outflow piping side through a gap 16, a sliding surface with the sleeve valve body including a valve box valve seat 14b corresponding to the valve seat 14a of the sleeve valve body is provided. An outflow piping side tip 13d of the sleeve valve body is enabled to be retracted to the inflow piping side away from the valve box valve seat 14b and through a clearance generated by the retraction between the outflow piping side tip of the sleeve valve body and the valve box valve seat, a fluid (w) can flow directly from the clearance to the outflow piping. Thus, the fluid flows directly from the inflow piping to the outflow piping side without interposing the valve holes of the sleeve valve body, such that stagnant dust B within the valve box also flows out and is discharged by the flow.SELECTED DRAWING: Figure 3
Patent JP-2019059793-A (JP)
Title: Modified nucleoside, nucleotide, and nucleic acid compositions
Inventor: ANTONIN DE FOUGEROLLES
IPC: A61K47/18
Filed: 2019-01-24
Abstract: To provide formulation compositions comprising modified nucleic acid molecules which may encode a protein, a protein precursor, or a partially or fully processed form of the protein or a protein precursor, and further provide nucleic acids useful for encoding polypeptides capable of modulating a cell's function and/or activity.SOLUTION: The formulation composition may further include a modified nucleic acid molecule and a delivery agent.SELECTED DRAWING: None
Patent JP-2020119323-A (JP)
Title: Information processing device and program
Inventor: MINAMISAKO YUKI
IPC: G06F3/0482
Filed: 2019-01-24
Abstract: To allow for notifying an operator of the presence of processes that are not completed in a host device in a manner that is less obstructive to operation of the operator compared with an arrangement for displaying information on processes that are not completed by the host device without manipulation performed by the operator.SOLUTION: An information processing device is provided, comprising a touch panel, and display means configured to change how a predefined reception section is displayed depending on the presence or absence of uncompleted processes, or processes being executed by a host device that are not completed, and to display a predetermined manipulation item in the absence of uncompleted processes when the reception section receives an instruction from an operator, and display a manipulation item for receiving an instruction for displaying uncompleted processes in addition to the predetermined manipulation item in the presence of uncompleted processes when the reception section receives an instruction from the operator.SELECTED DRAWING: Figure 3
Patent JP-2020116183-A (JP)
Title: Game machine
Inventor: OGURA TOSHIO
IPC: A63F5/04
Filed: 2019-01-24
Abstract: To reduce control load for determining whether or not abnormality has occurred to a plurality of movable parts.SOLUTION: A central movable accessory has a back and forth movable part movable between a storage position and an appearance position and a vertically movable part movable between a standby position and a driving position. A sub control part adds 1 to value of an operation failure counter when a movement of the back and forth movable part to each position is not over after a prescribed period passes or when it is determined that a movement of the horizontally movable part to each position is not over after a prescribed period passes, and determines that abnormality has occurred to the central movable accessory when value of an operation failure counter reaches 6 or larger.SELECTED DRAWING: Figure 6
Patent JP-2020024357-A (JP)
Title: Optical film
Inventor: SUMIYOSHI SUZUKA
IPC: H01L27/32
Filed: 2019-01-25
Abstract: To provide an optical film with having excellent film strength.SOLUTION: Disclosed is an optical film which includes an optically anisotropic layer consisting of a polymer obtained by polymerizing a polymerizable liquid crystal compound having one or more polymerizable functional groups in an oriented state. The number of alignment defects satisfies 0≤the number of alignment defects (pieces)≤14 in the actual size of the optically anisotropic layer per 1 mmwhich is 0.3 μm or more and 50 μm or less.SELECTED DRAWING: None
Patent JP-2019133931-A (JP)
Title: Lithiation of electrode for cylindrical energy storage device and method of making same
Inventor: KATHLEEN QIU
IPC: H01M10/052
Filed: 2019-01-28
Abstract: To provide a lithiation method that may reduce manufacturing time and cost for Li attachment and pre-doping, and may further prevent electrode and separator damage caused during a pre-doping process in a direct contact method.SOLUTION: A method for lithiation of an electrode includes the steps of: providing a roll 110 including an electrode to be lithiated; providing a lithium metal piece 130 with predetermined weight, the lithium metal piece being attached to a conductive material 140; attaching the conductive material to a current collector of the electrode to be lithiated or to a metal tab 120 connected with the electrode to be lithiated; placing the roll, the lithium piece and the conductive material in a container 160; and filling the container with an electrolyte 150 containing a lithium salt.SELECTED DRAWING: Figure 1
Patent JP-2020124362-A (JP)
Title: Game machine
Inventor: ICHIHARA TAKAAKI
IPC: A63F7/02
Filed: 2019-02-05
Abstract: To provide a game machine having a control unit to which fraudulence using a foreign object is difficult to be performed.SOLUTION: A game machine is provided, comprising: a main control portion 1310 having a main control MPU 1310a for controlling progress of games; a main control board box 1320; and a setting switch 1311a provided in the main control portion 1310 and capable of changing a game setting related to a winning probability. The main control board box 1320 comprises a base body 1302 and a cover body 1301 and stores the main control portion 1310 in an inner space 1320s. The setting switch 1311a comprises a setting key cylinder 1311e to be operated by a setting key and an operation portion 1311j is formed so that it faces outside from an opening portion 1301h of the cover body 1301. In the inner space 1320s between the main control portion 1310 and the base body 1302 or the cover body 1301, force-resisting means 1302x is provided that resists the force to push the setting switch 1311a inward and can prevent the movement of the setting switch 1311a toward inside the main control board box 1320.SELECTED DRAWING: Figure 144Z
Patent JP-2020064586-A (JP)
Title: Control device, service provision system, control method and program
Inventor: MAKISHI JUN
IPC: G06F13/00
Filed: 2019-02-08
Abstract: To provide a technology enabling management of components to be simplified in a system in which services are provided by one or a plurality of components.SOLUTION: Disclosed is a control device for performing control on one or a plurality of components in a network in which services are provided by one or the plurality of components. The control device includes a control part which, when the service start request is detected, prepares one or the plurality of components, and, when the service termination request is detected, deletes one or the plurality of components.SELECTED DRAWING: Figure 1
Patent JP-2019212285-A (JP)
Title: Time-based verification for determining presence of devices and/or individuals at specific locations
Inventor: KEVIN C KREJCI
IPC: G06Q50/10
Filed: 2019-02-12
Abstract: To provide a time-based verification system for determining the presence of individuals at specific locations.SOLUTION: A method includes: determining the presence of a computing device associated with an individual at a location during a first time period; obtaining identification data of the individual; determining identification of the individual on the basis of obtaining the identification data and on the basis of the presence of the computing device; verifying that the individual is expected at the location on the basis of determining the identification of the individual; and performing a secure action on the basis of verifying that the individual is expected at the location.SELECTED DRAWING: Figure 5
Patent JP-2020132712-A (JP)
Title: Lubricating oil composition
Inventor: KONISHI TOMOYA
IPC: C10M137/02
Filed: 2019-02-15
Abstract: To provide a lubricating oil composition having excellent abrasion resistance and scorching resistance while having reduced viscosity.SOLUTION: A lubricating oil composition comprises the following components (A) to (E): (A) a lubricating oil base oil; (B) a phosphorus-based extreme pressure agent; (C) a sulfur-based extreme pressure agent having an active sulfur amount of 0.5 to 30 mass%; (D) an ashless dispersant; and (E) a polydiene having a number-average molecular weight of 500 to 3000 and having a functional group at least at one terminal. The lubricating oil composition has a kinematic viscosity of 2 to 10 mm/s at 100°C.SELECTED DRAWING: None