baber/WOPTO huggingface dataset:
Patent KR-20200084881-A (KR)
Title: 원격 프로시저 호출을 구현하는 방법 및 장치
Inventor: SHAOYONG WU
IPC: H04L29/06
Filed: 2018-09-12
Abstract: 본 발명은 원격 프로시저 호출을 구현하는 방법 및 장치를 제공하며, 이 중 상기 방법은, 클라이언트는 SDN 컨트롤러의 서비스 인터페이스를 호출하고, 서비스 인터페이스의 제1 입력 파라미터를 사전 설정된 프로토콜 포맷의 제2 입력 파라미터로 변환하고(400); 클라이언트는 제2 입력 파라미터를 RPC를 만족하는 요청 정보로 변환하여, SDN 컨트롤러로 전송하는 것을 포함한다.
Patent KR-20200090807-A (KR)
Title: 녹색 형광체, 형광체 시트 및 발광 장치
Inventor: YAMASUGE TAKEHIRO
IPC: H01L33/50
Filed: 2018-11-22
Abstract: 무기 형광체 입자와, 상기 무기 형광체 입자의 표면에 부착된 네오디뮴 함유 입자를 함유하고, 500 ㎚ ∼ 570 ㎚ 에 발광 극대 파장을 갖는 녹색 형광체이다.
Patent KR-20200092350-A (KR)
Title: 전극 재료, 그것을 사용한 전극층 그리고 축전 디바이스 및 전극 재료의 제조 방법
Inventor: SASAKI AKITO
IPC: H01M4/48
Filed: 2019-02-22
Abstract: 전극 재료는, 산소 결손 및 b축을 따른 헥사고날 터널 구조를 갖는 산화텅스텐 분말로 이루어진다.  또한, 산화텅스텐 분말은, WO 3-x 로 표현되고, 0.1≤x≤0.3을 충족하는 것이 바람직하다.  또한, X선 회절 스펙트럼에 있어서의 피크 강도비I (010) /I (103) 이 1 이상 10 이하인 것이 바람직하다.
Patent KR-20200091936-A (KR)
Title: 고속 이미지 판독 및 프로세싱
Inventor: WENDEL ANDREAS
IPC: H04N5/247
Filed: 2018-12-11
Abstract: 차량에 대한 광학 시스템은 복수의 카메라 센서들로 구성될 수도 있다.  각각의 카메라 센서는 각각의 시야의 각각의 이미지 데이터를 생성하도록 구성될 수도 있다.  광학 시스템은 복수의 카메라 센서들에 커플링되는 복수의 이미지 프로세싱 유닛들로 추가로 구성된다.  이미지 프로세싱 유닛들은 카메라 센서들에 의해 캡처된 이미지 데이터를 압축하도록 구성된다.  컴퓨팅 시스템은 압축된 이미지 데이터를 메모리에 저장하도록 구성된다.  컴퓨팅 시스템은 압축된 이미지 데이터에 기초하여 차량을 제어하도록 구성되는 차량 제어 프로세서로 추가로 구성된다.  광학 시스템 및 컴퓨팅 시스템은 데이터 버스에 의해 통신가능하게 커플링될 수 있다.
Patent KR-20200104882-A (KR)
Title: 고 내열성 폴리아미드 성형 배합물
Inventor: FILLOT LOUISE ANNE
IPC: C08K3/22
Filed: 2018-12-20
Abstract: 본 발명은 열 노화 내성 폴리아미드 성형 배합물, 상기 폴리아미드 성형 배합물로부터 제조된 성형품, 및 상기 성형품의 용도에 관한 것이다.
Patent KR-20200126363-A (KR)
Title: 액면 검출 장치
Inventor: SATO TETSUYA
IPC: G01F23/32
Filed: 2019-02-15
Abstract: 본 발명은 저렴하게 제조할 수 있는 액면 검출 장치를 제공하는 것으로, 액면 검출 장치(10)는 피장착 부재(11)에 고정된 프레임(30)과, 이 프레임(30)에 대해 회전 가능하게 형성된 홀더(60)와, 이 홀더(60)에 고정된 아암(12)을 갖고 있는 것으로, 홀더(60)는 아암(12)이 재치되고 아암(12)의 하면을 지지하는 재치부(72)와, 아암(12)의 상면에 맞닿고 아암(12)을 재치부(72)를 향해 탄성지지하고 있는 탄성지지부(74)를 갖고 있고, 재치부(72)는 탄성지지부(74)에 대향하는 부위를 피해 형성되어 있고, 아암(12)은 재치부(72)에 재치된 부위의 상면이 홀더(60)의 외부에 노출되어 있고, 홀더(60)의 탄성지지부(74)에 대향하는 부위는 개구 형상으로 형성된 개구부(75)로 되어 있는 것이다.
Patent KR-20200128521-A (KR)
Title: 윅의 제조 방법
Inventor: TANABE SHIGEYUKI
IPC: F28D15/02
Filed: 2019-03-11
Abstract: [과제] 윅의 모세관력의 컨트롤이 용이해지는 윅의 제조 방법을 제공한다. 
[해결수단] 본 발명에 의한 윅의 제조 방법은 금속 분말을 포함해서 이루어지는 원료 분말을 기대 상에 공급하는 공정과, 기대 상의 원료 분말을 가열해서 소결체를 얻는 공정과, 소결체를 압연하는 공정을 포함해서 이루어진다. 이 때, 기대 상에 공급된 원료 분말을 가열해서 소결체가 형성됨으로써 시트 형상의 소결체를 형성하는 것이 가능해진다. 또한, 소결체가 압연됨으로써 소결체를 형성한 후에, 소결체의 공극률을 컨트롤할 수 있고, 그 결과 윅(1)의 모세관력을 컨트롤하는 것이 가능해진다.
Patent KR-20200106558-A (KR)
Inventor: SEGALIS EYAL
IPC: G06N20/00
Filed: 2017-06-13
Abstract: 인공 호출 개시(synthetic call initiations) 및 긴급 구제(bailouts)와 관련된, 컴퓨터 저장매체 상에 인코딩된 컴퓨터 프로그램을 포함하는 방법들, 시스템들 및 장치가 제공된다. 일부 구현예에서, 본 발명의 방법은, 호출 개시 시스템에 의해서, 상기 전화 호출의 제 1 측 상의 제 1 인간과 상기 전화 호출의 제 2 측 상의 상기 봇 사이의 전화 호출 동안, 상기 제 1 인간과 상기 봇 사이의 실시간 대화를 분석하는 단계를 포함한다. 호출 개시 시스템은, 상기 실시간 대화에 대한 분석에 기초하여, 상기 전화 호출이 상기 봇으로부터 상기 전화 호출의 제 2 측 상의 제 2 인간으로 전환되어야 하는지를 결정할 수 있다. 상기 전화 호출이 상기 전화 호출의 제 2 측 상의 제 2 인간으로 전환되어야 한다고 결정함에 응답하여, 호출 개시 시스템은 상기 전화 호출을 상기 봇으로부터 상기 제 2 인간으로 전환할 수 있다.
Patent KR-20200121858-A (KR)
Title: 분말 야금용 철분
Inventor: TANIGUCHI YUJI
IPC: C22C38/44
Filed: 2019-02-19
Abstract: 본 발명의 일 태양에 따른 분말 야금용 철분은, C가 0.005질량% 이하, Si가 0.030질량% 이하, P가 0.020질량% 이하, S가 0.020질량% 이하, O가 0.15질량% 이하, Mn, Ni, Mo 및 Cr의 합계가 3.0질량% 이하, 또한 잔부가 Fe 및 불가피 불순물인 조성을 갖고, 탭 밀도가 3.90g/cm 3  이상 4.20g/cm 3  이하이다.
Patent KR-20200139736-A (KR)
Title: 옥사졸 화합물 결정
Inventor: KANAI NAOHIKO
IPC: A61P17/00
Filed: 2019-04-03
Abstract: PDE4에 대해 특이적인 억제 활성을 가지며 탁월한 안정성을 나타내는 특정 옥사졸 화합물의 결정이 제공된다.  구체적으로, 화학식 (5)에 의해 나타내어지는 옥사졸 화합물의 결정이 제공되며, 여기서 결정은 CuKα 특성 X선을 사용하여 측정된 X선 분말 회절 패턴에서 9.6±0.2, 19.1±0.2, 및 21.2±0.2의 회절각 2θ (°)에 피크를 갖는다.
Patent KR-20200141469-A (KR)
Title: 신규한 glp-1 유사체
Inventor: THENNATI RAJAMANNAR
IPC: A61P3/04
Filed: 2019-04-05
Abstract: 본 개시는 C-말단에서 Leu 또는 Ile이 있는 아미노산 서열을 갖는 신규한 글루카곤 유사 펩티드-1(GLP-1) (7-37) 유사체에 관한 것이다. 새로운 유사체는 부작용이 감소되고 작용 지속기간이 개선된 강력한 GLP-1 효능제이다. 본 개시는 추가로 새로운 유사체의 아실화된 유도체에 관한 것으로, 이는 개선된 효능과 작용 지속시간을 가지며 경구 투여에 적합하다. 본 개시의 유사체는 당뇨와 비만 치료에 유용할 수 있다.
Patent KR-20210013054-A (KR)
Title: 세탁물 건조기
Inventor: ROSSI GIUSEPPE
IPC: D06F34/14
Filed: 2018-05-21
Abstract: 세탁물 건조기(10)는, - 캐비닛(20), - 캐비닛(20) 내측에 회전가능하게 장착되는 드럼(50), - 드럼(50) 내에 장착되는 적어도 하나의 전기 요소(200, 61), - 상기 캐비닛(20) 또는 상기 캐비닛(20)에 대해 이동 불가능한 상기 세탁물 건조기(10)의 구성요소(22)에 고정되는 무선 전력 송신기 유닛(62), - 상기 드럼(50) 내에/상에 장착되는 무선 전력 수신기 유닛(63)을 포함하고, 상기 무선 전력 송신기 유닛(62)은 상기 무선 전력 수신기 유닛(63)에 전력을 전달하기 위해 이에 전자기적으로 결합되며, 상기 무선 전력 수신기 유닛(63)은 상기 적어도 하나의 전기 요소(200, 61)에 전력을 공급하기 위해 이에 전기적으로 결합된다.
Patent KR-20210014135-A (KR)
Title: 광장 균일성 향상을 위한 광학 시스템 및 방법
Inventor: RUBIN YUVAL
IPC: G02B27/00
Filed: 2019-05-22
Abstract: 관찰자가 볼 수 있는 이미지을 생성하는 디스플레이 장치(10)는 광학 시스템(14) 및 제어 유닛(20)을 포함한다. 광학 시스템은 이미지를 나타내는 입력 광을 광 전파 채널(14A)에 수신하고 출구 동공(14B)에서 관찰자(18)에게 제시될 이미지에 대응하는 시야(FOV)를 갖는 출력 광을 생성한다. 광 전파 채널은 출구 동공의 측면 치수 x 및 FOV의 각도 스팬 φ에 걸친 광학 시스템의 강도 전이 함수 맵 I1(x, φ)을 가진다. 제어부(20)는 광학 시스템의 강도 전이 함수 맵 I1(x, φ) 내의 강도 불균일성을 적어도 부분적으로 보상하는 보정 강도 맵에 기반하여 강도 변조를  이미지 데이터에 적용함으로써 광학 시스템에 입력될 이미지 데이터를 변조한다.
Patent KR-20210089582-A (KR)
Title: Hydraulic circuit and construction machine
Inventor: OKADA TAISUKE
IPC: E02F9/22
Filed: 2021-01-05
Abstract: The purpose of the present invention is to inhibit a great change in the operation speed of an actuator depending on the operation of another actuator. A hydraulic circuit (20) comprises: a first direction conversion valve (V1) for receiving oil from a first pump (P1) and a second pump (P2) and controlling the supply of the oil to a first actuator (A1); a second direction conversion valve (V2) for receiving oil from the second pump (P2) at the serial upper stream side of the first direction conversion valve (V1) and controlling the supply of the oil to a second actuator (A2); and a joining valve (VX) for stopping oil supply to the first direction conversion valve (V1) from the first pump (P1) or reducing oil supply to the first direction conversion valve (V1) from the first pump (P1) if at least oil supply from the second direction conversion valve (V2) to the second actuator (A2) is stopped or oil is supplied from the first direction conversion valve (V1) to the first actuator (A1).
Patent KR-20220102346-A (KR)
Inventor: CHO MI LA
IPC: C12Q1/689
Filed: 2021-01-13
Abstract: The present invention relates to a diagnostic kit capable of discriminating or predicting the immune status of a patient who has undergone transplant surgery through a microbiome. According to the present invention, the difference of a microbiome specific genus and species is revealed among a patient who has undergone transplant surgery (taking 100% of immunosuppressants), an immunomodulatory patient (taking 50% of immunosuppressants), an immunotolerant patient (taking 0% of immunosuppressants) and normal person, and as a result of confirmation through a Th17 cell level, there is a difference in immune status. In addition, the microbiome specific genus and species of the present invention can easily and accurately determine the immune status within the individual of the patient who has undergone transplant surgery. Accordingly, the present invention has an effect of conveniently managing the immune status of each patient and can be useful in microbiome treatment for immunity enhancement in the future.
Patent KR-20210092153-A (KR)
Title: Method and apparatus for providing contents mediating platform
Inventor: GO CHANG WON
IPC: G06Q30/06
Filed: 2021-01-15
Abstract: The present invention is to provide a method and apparatus for providing a content mediating platform, which can provide a platform that matches a user or advertiser who requests content with a creator. The apparatus for providing a content mediating platform includes: a control unit which requests a creator selected by a user from among creators registered in the platform to produce content, and provides the content produced by the creator according to the request for producing the content, to the user; and a memory which stores information about the creator.
Patent KR-20210098369-A (KR)
Title: Nonpowered and bidirectional fine dust collector of electric rail car
Inventor: JUNG DO HUN
IPC: F24F13/20
Filed: 2021-01-28
Abstract: The present invention relates to a non-powered bidirectional fine dust collector of an electric rail car which may collect fine dust in a underground tunnel using train induced wind regardless of a running direction of the electric rail car to reduce a pollution degree in the underground tunnel. The non-powered bidirectional fine dust collector of an electric rail car comprises: a rotation block having a hollow inside and formed therein with a first outlet and a second outlet at a front surface and a rear surface; and a duct collecting block having a hollow inside and provided therein with filter members at a front surface and a rear surface to filter fine dust, and formed at an outlet at a top or bottom surface and provided at one side of the rotation block. The rotation block is installed at the electric rail car so that one of the first outlet and the second outlet leans toward a running direction of the electric rail car. A drive fan is provided inside the rotation block and is rotated together with a rotating shaft perpendicular to the running direction of the electric rail car. The dust collecting block includes a sirocco fan rotated in connection with rotation of the drive fan to exhaust purified air filtering fine dust to an outlet through a filter member.
Patent KR-20220113572-A (KR)
Inventor: JEONG JI HYUN
IPC: A61H1/00
Filed: 2021-02-05
Abstract: The present invention relates to an automatic body type recognition system of a spine correction system and, more specifically, to an automatic body type recognition system based on body size data, which detects the position of the lumbar or cervical vertebrae of a patient requiring spine correction by a proximity sensor to adhere an acupressure module to the position of the patient's lumbar or cervical vertebrae safely and accurately, and measures a rising height of the acupressure module. According to the present invention, the spine correction system for automatically correcting the spine line of a patient requiring spine correction by applying an algorithm based on the patient's body size comprises: a reference data generation step (S1) of inputting human body dimensions including at least one of age, gender, and weight of a patient; a body shape data generation step (S2) of measuring body shape information of the patient through a cervical spine sensor (162) and a lumbar spine sensor (163) provided on one side of a bed on which the patient lies; a correction data generation step (S3) of outputting an error value obtained by comparing reference data and body shape data, and correcting the body shape data with the error value; and a spine line correction step (S4) of controlling the height of the bed in response to the correction data to align the height of the patient's spine.
Patent KR-20210118734-A (KR)
Inventor: KAMON HIROAKI
IPC: B41J2/21
Filed: 2021-02-05
Abstract: Good printing for packaging bags on a packaging substrate is performed without impairing the design of a packaging bag manufactured by subjecting a packaging substrate to bagging processing. The printing method of the present invention provides: a printing step for printing by discharging ink from a nozzle to a printing surface of a packaging substrate while conveying a long band-shaped packaging substrate before bagging processing in the elongate direction; a positional information acquisition step of acquiring position information of a non-visible area which is not visually recognized from the outside after bagging processing among the printed surfaces of the packaging substrate; and a flashing step of performing a flashing process by discharging ink from a nozzle toward the non-visible area based on the positional information.
Patent KR-20220114753-A (KR)
Title: Fmcw lidar control system applicable to ultra-high and cryogenic environments
Inventor: PARK HYUN JU
IPC: G01S17/34
Filed: 2021-02-09
Abstract: The present invention relates to a frequency modulated continuous wave (FMCW) light detection and ranging (LiDAR) control system applicable to ultra-high temperature and cryogenic environments and, more specifically, to an FMCW LiDAR control system applicable to ultra-high temperature and cryogenic environments, for controlling an ambient temperature for normal operation of a LiDAR at an extremely low temperature (-40 ℃) or an extremely high temperature (+100 ℃) since a FMCW LiDAR system is accompanied by high-speed signal processing such as fast Fourier transform (FFT). To this end, the system of the present invention comprises: a temperature sensor unit located around the FMCW LiDAR to sense a temperature in real time; and a temperature control unit controlling a temperature of the FMCW LiDAR based a parameter for at least one of preset heating and cooling in response to the temperature sensed by the temperature sensor unit.
Patent KR-20220117688-A (KR)
Title: Hydraulic damper having energy harvestin
Inventor: KIM JIN HO
IPC: F16F9/18
Filed: 2021-02-17
Abstract: Disclosed is a hydraulic damper having an energy harvesting function according to the present invention, comprising: a damper cylinder which has a buffering space formed at the bottom for storing fluid and an energy conversion space formed at the top; a piston rod which is provided to penetrate the top and bottom of the damper cylinder; a piston which is coupled to the piston rod, and is placed in the buffering space and the energy conversion space of the damper cylinder; a blade which is placed on one side of the piston positioned in the buffering space; a magnet which is placed on one side of the piston positioned in the energy conversion space; and an induction coil which is placed in the energy conversion space. The hydraulic damper having the energy harvesting function according to the present invention can convert the fluid resistance inside the damper into rotational energy, and generate electricity by rotating the magnet using the rotational energy.
Patent KR-20220119292-A (KR)
Title: a charger that does not bend the jack well
Inventor: KIM MIN U
IPC: H01R107/00
Filed: 2021-02-20
Abstract: The present invention relates to a charger with a jack not easily bent, which includes: a connection device which can be connected to a charger jack protection part and detached from the same; and a fixing device which connects the connection device with the jack, and a mobile phone and an electronic device. The fixing device is attached to the side of the connection device, and the fixing device with a hole through which the side of a mobile phone passes so that the fixing device can cover a part of the mobile phone and an electronic device with respect to the fixing device is used, so that the electronic device such as a mobile phone is firmly coupled to a jack by the fixing device, to provide an effect that the jack is not bent since the jack is not affected by an impact due to the fixing device even when the impact is applied.
Patent KR-20220120990-A (KR)
Title: Device of providing fandom product recommendation service
Inventor: LEE JONG SEOK
IPC: G06Q30/06
Filed: 2021-02-24
Abstract: According to an embodiment of the present invention, a fandom product recommendation service providing device comprises: a fandom information management unit for performing screening and classification works to analyze fandom information collected from one or more platform channels as data and extracting core fandom information corresponding to a preset goods template modeling process based on the fandom information; and an analysis unit for extracting and learning goods preference information from the core fandom information and generating recommendation goods information by using a learning result and the core fandom information.
Patent KR-20220124417-A (KR)
Title: Dead time controller and DC-CD converter including the same
Inventor: NAM HYUN SEOK
IPC: H02M1/38
Filed: 2021-03-03
Abstract: A dead time controller includes a phase detector, a filter circuit, and an amplification circuit. The phase detector provides at least one detection signal related with a dead time corresponding to an overlapping inactivation section between a first driving control signal and a second driving control signal by detecting a phase difference between the first driving control signal applied to a first power transistor pulling up a switching node connected with a first terminal of an inductor included in a DC-DC converter, and the second driving control signal applied to a second power transistor pulling down the switching node. The filter circuit generates at least one DC voltage signal by filtering and averaging the at least one detection signal based on a pulse-width modulation (PWM) signal acquired by performing PWM on an output voltage provided from an output node connected with a second terminal of the inductor. The amplification circuit generates at least one amplified voltage signal having a voltage level proportional to the dead time by amplifying the at least one DC voltage signal. Therefore, the present invention is capable of adaptively adjusting the dead time based on the voltage signal.
Patent KR-20220127978-A (KR)
Title: Apparatus and method for generating black-and-white image by preserving halftone pattern of image from color image separated by CMYK color space
Inventor: CHO JUN SEONG
IPC: H04N1/00
Filed: 2021-03-12
Abstract: The present invention relates to an apparatus and a method for generating a black and white image by preserving a halftone dot pattern of an image from a color image separated from a printer into a CMYK color space. The method includes the following steps of: separating an inputted CMYK image into a CMY color image and a K black and white image; analyzing a halftone dot ratio and halftone dot pattern for each of the separated CMY color images, removing halftone dots for each of the CMY color images using the analyzed halftone dot ratio and the halftone dot pattern, and then generating one single black and white image; and outputting a black-and-white image for printing by calculating the generated one single black and white image and the separated K black and white image. Therefore, the present invention is capable of improving the quality of a black and white printout, and shortening time for generating a black and white image.
Patent KR-20210156728-A (KR)
Inventor: HONGZE WU
IPC: G06F11/32
Filed: 2021-03-15
Abstract: The present disclosure relates to a method and apparatus for testing fuzzing. The method comprises: a step of receiving test input; a step of acquiring resource access feedback presenting an access situation for a resource based on the test input; and a step of determining whether to add the test input to an input queue according to the resource access feedback.
Patent KR-20210134216-A (KR)
IPC: H04R3/04
Filed: 2021-03-17
Abstract: Provided are an audio playback system and method. The method comprises the steps of: transmitting an audio signal representing first audio content via a first input line; transmitting an audio signal representing a second audio content via a second input line; and receiving an audio signal representing the first audio content by a first audio reproducing device connected to the first input line, and receiving an audio signal representing the first audio content through a first loudspeaker or loudspeaker group of the first audio reproducing device steps to play. The method also comprises the steps of: receiving an audio signal representing a second audio content by a second audio device coupled to the second input line, reproducing an audio signal representing the second audio content through a second loudspeaker or group of loudspeakers of a second audio device, and obtaining sound originating from a first loudspeaker or group of loudspeakers and a second loudspeaker or group of loudspeakers via at least one microphone or group of microphones of a second audio device to generate at least one microphone signal; and removing acoustic echo of the general multi-channel on the basis of at least one microphone signal and two audio signals representing the first audio content and the second audio content. The step of removing acoustic echo of the general multi-channel comprises compensatory filtering for modeling an impulse response of an acoustic path between each input line and at least one microphone or group of microphones, and an adaptation of the compensatory filtering.
Patent KR-20210124039-A (KR)
Title: Piston ring
Inventor: STUERM THOMAS
IPC: B23P15/06
Filed: 2021-03-22
Abstract: The present invention relates to a piston ring (100). The piston ring (100) comprises: a ring part (1); and a lock part (2). The lock part (2) has a male lock end unit (3) and a female lock end unit (4). The male lock end unit (3) includes a tongue unit (5). The female lock end unit (4) includes a concave unit (6). Therefore, the tongue unit (5) can be inserted into the concave unit (6). The concave unit (6) is opened toward the outer side surface (44) of the piston ring (100), and is placed between the first shank (41) and second shank (42). The maximum width (13) of the ring part (1) is smaller than the sum of at least the maximum width (15) of a circumferential-directional extended part (18) of the tongue unit (5) and at least the maximum width (16) of the first circumferential-directional extended part (17) of the first shank (41). The present invention aims to provide a piston ring which is capable of having a long life and high durability.
Patent KR-20220022088-A (KR)
Inventor: WANG CHENCHEN JACOB
IPC: H01L27/24
Filed: 2021-03-23
Abstract: A device comprises: a first transistor on a substrate; a second transistor disposed over the first transistor; and a memory element disposed over the second transistor. The second transistor comprises: a channel layer; a gate dielectric layer surrounding a sidewall of the channel layer; and a gate electrode surrounding the sidewall of the gate dielectric layer.
Patent KR-20220138902-A (KR)
Inventor: CHOI JUNG JOO
IPC: A61B5/00
Filed: 2021-04-06
Abstract: The present invention relates to a vehicle steering wheel cover with anti-virus sterilization and an anti-sleeping function and a manufacturing method thereof, wherein the surface of an outer layer of a steering wheel cover (1) is covered with an anti-bacterial cover (2) of polymeric resin including copper or copper oxide powder filler and photocatalyst powder. A low-frequency stimulation pad (3) for stimulating the body with microcurrent is further included between the steering wheel cover (1) and the anti-bacterial cover (2). The low-frequency stimulation pad (3) is electrically connected to a control part (5) through a lead line (4) to control the supply of power and the low-frequency stimulus of the microcurrent. The control part (5) is provided with power through a connector (6) from a power supply device of a vehicle. Moreover, a sleepiness measurement sensor (7) is further included and if the sleepiness state is measured by the sleepiness measurement sensor (7) and sleepiness is determined to have occurred, the control part (5) beats sleepiness by stimulating a driver with a microcurrent low frequency equal to or smaller than 10 mA using a complex frequency pattern efficient in preventing sleepiness with the low-frequency stimulation pad (3).