baber/WOPTO huggingface dataset:
Patent KR-20120033734-A (KR)
Title: Beverage for dilution of cereal product comprising loquat leaf extract
Inventor: KANG DEOK WON
IPC: A23L33/00
Filed: 2010-09-30
Abstract: PURPOSE: A beverage composition containing a loquat leaf extract for producing cereal is provided to offer the liver cell protection functionality of loquat leaves to users. CONSTITUTION: A beverage composition having liver cell protection functionality contains 0.1-0.9wt% of loquat leaf extract, 8-14wt% of rice concentrate with the sweetness of 50-60 Brix, 0.5-5wt% of vegetable cream, and 0.2-1.85wt% of saccharide. The astringent taste of loquat leaves is removed from the loquat leaf extract.
Patent KR-20120036025-A (KR)
Title: Pharmaceutical composition for preventing or treating diabetes or obesity containing sodium lobarate
Inventor: YIM JOUNG HAN
IPC: A61P3/04
Filed: 2010-10-07
Abstract: PURPOSE: A pharmaceutical composition containing sodium lobarate is provided to suppress tyrosine phosphatase 1B and to treat type II diabetes. CONSTITUTION: A pharmaceutical composition for preventing or treating diabetes or obesity contains sodium lobarate of chemical formula 1 as an active ingredient. A functional food for preventing or treating diabetes or obesity contains sodium lovarate of chemical formula 1. Sodium lovarate is isolated from Stereocaulon alpinum extract. A method for preparing lovaric acid comprises: a step of extracting dried Stereocaulon alpinum using methanol for 24 hours; a step of distilling the solvent; a step of loading flash column chromatography filled with silicagel(C18); and a step of injecting 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100%(v/v) methanol in order to obtain each fraction.
Patent KR-20120037043-A (KR)
Title: Apparatus for maunfacturing carbon fiber using plasma source
Inventor: CHOI DAI KYU
IPC: D01F9/32
Filed: 2010-10-11
Abstract: PURPOSE: An apparatus for fabricating a carbon fiber using plasma source is provided to enable thermal treatment of precursor fibers under a stable condition. CONSTITUTION: An apparatus for fabicaitng a carbon fiber comprises a plasma induced pipe(110-1~4), plasma source, and power supply. A precursor fiber passes through the plasma induced pipe. The plasma source is used for thermal treatment of precursor fiber inside the plasma inducing pipe. The plasma source has an antenna oils(170-1~4), ignation electrode, auxiliary heating device, and a gas inlet.
Patent KR-20120038199-A (KR)
Title: Dash panel structure for reducing noise
Inventor: YOO JI WOO
IPC: B62D25/14
Filed: 2010-10-13
Abstract: PURPOSE: A dash panel structure for reducing noise generated from a dash panel is provided to improve the safety of the dash panel dividing an engine room and an indoor space of a vehicle. CONSTITUTION: A dash panel structure for reducing noise includes a dash panel(10), a horizontal member(20), a reinforcing member(100), and a filler(110). The dash panel divides an engine room and an indoor space of a vehicle. The horizontal member reinforces the rigidity of the dash panel. The reinforcing member is mounted on one side of the dash panel, and is located in between the dash panel and the horizontal member. The reinforcing member reduces the noise generated from the dash panel. The filter is filled in between the reinforcing member and the dash panel for reducing the pumping mode phenomenon.
Patent KR-20120039805-A (KR)
Title: Suction nozzle assembly for vacuum cleaner
Inventor: SONG SUNG WOOK
IPC: A47L9/02
Filed: 2010-10-18
Abstract: PURPOSE: A suction nozzle assembly for a vacuum cleaner is provided to enable a rib of a main air suction unit to prevent bedclothes from being wound in a rotary brush inside a case when bedclothes are cleaned. CONSTITUTION: A suction nozzle assembly for a vacuum cleaner comprises a case, a main air suction unit(120), and a secondary air suction unit(130). The case is connected to a cleaner body. The main air suction unit is formed in the case to make the inflow of the external air in the case. The secondary air suction unit is formed in the case to make the inflow of the external air in the case. The main air suction unit has a first air inlet(121) and a rib(123). The rib is formed in the first air inlet at a regular interval.
Patent KR-20120041325-A (KR)
Title: Rfid tag having and method for controlling radiation direction of antenna
Inventor: CHUNG WON SUK
IPC: G06K19/077
Filed: 2010-10-21
Abstract: PURPOSE: An RFID tag and an antenna radiation direction control method equipped with a radiation direction conversion antenna are provided to maximize the transmission efficiency of an RFID system and connect a PCB and an antenna to a motor. CONSTITUTION: A PCB(Printed Circuit Board)(30) installs an RFID(Radio Frequency ID) chip. A motor(40) is combined with the PCB. An antenna(20) is arranged at one end of the PCB and is combined with the rotational axis of the motor. A controller is combined with the PCB. The controller includes a radiation direction switching antenna for controlling the motor.
Patent KR-20110047990-A (KR)
Title: 유해 생물-방제 조성물 및 유해 생물의 방제 방법
IPC: A01P7/04
Filed: 2010-10-28
Abstract: 하기 화학식 (Ⅰ) 로 표시되는 에스테르 화합물: 
   
및 하기 화학식 (Ⅱ) 로 표시되는 에스테르 화합물: 
   
의 조합을 포함하는, 해충에 대한 방제 효과가 우수한 해충 방제 조성물을 개시한다.
Patent KR-20120045271-A (KR)
Title: Appratus and method for detecting automobile failure
Inventor: KIM HYUNG SUK
IPC: B60W50/02
Filed: 2010-10-29
Abstract: PURPOSE: A device and a method for detecting automobile failure is provide to use increases and decrease information per unit time of sensing value continuously input, thereby capable of detecting failures which are not detected by existing sensors. CONSTITUTION: A device for detecting automobile failure comprises: an increase and decrease rate calculating device receiving signal from an object for detecting, and calculate the increase and decrease rate of the signal; a first comparing part outputting temporary failure signal in case the increase and decrease rate is over than preset critical value; and a second comparing part outputting final failure signal by comparing counter accumulating the temporary failure signals and the preset critical value, and in case of the accumulated counter is over the preset critical value.
Patent KR-20120045539-A (KR)
Title: Light emitting device package
Inventor: KANG KYOUNG MO
IPC: H01L33/62
Filed: 2010-10-29
Abstract: PURPOSE: A light emitting device package is provided to improve reliability of a wire bonding process by forming a rough region for binding a wire on a lead frame. CONSTITUTION: A body(110) comprises a cavity and a wall. A first lead frame and a second lead frame are mounted on the body. A light source part is electrically connected to the first lead frame and the second lead frame. The first or second lead frame comprises a wire bonding region for bonding a wire and the light source part. A rough region(170) is formed on the wire bonding region. A auxiliary barrier(180) is formed between the wire bonding region and the light source part.
Patent KR-20120047459-A (KR)
Title: 찜질기
Inventor: KIM YOUNG JOO
IPC: A61F7/10
Filed: 2010-11-04
Abstract: 찜질기가 개시된다. 개시된 찜질기는 전원을 공급받아 발열하는 발열부재; 상기 발열부재의 양면에 각각 설치되며 상기 발열부재에서 발생된 열에 의해 히팅되도록 내부에 젤 또는 물과 같은 액체가 수용된 한 쌍의 온열 팩 부재; 및, 상기 온열 팩 부재의 양측에 설치된 외피;를 포함하는 것을 특징으로 한다.
Patent KR-20110053198-A (KR)
Title: Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
Inventor: SUZUKI HIROKI
IPC: C09K11/06
Filed: 2010-11-12
Abstract: PURPOSE: A heterocyclic compound is provided to obtain a light-emitting element having high emission efficiency, and a light-emitting device, an electronic device and a lighting device having reduced power consumption. CONSTITUTION: A heterocyclic compound comprises a structure represented by chemical formula (G1), wherein A represents a substituent represented by chemical formulas (S1) or (S2); Ar1 and Ar2 independently represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms; R1 to R18independently represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms; and wherein X represents oxygen or sulfur.
Patent KR-20120051835-A (KR)
Title: Foldable wall
Inventor: KIM SANG OH
IPC: E04B1/343
Filed: 2010-11-15
Abstract: PURPOSE: A foldable wall is provided to operate an installation work fast and conveniently because components are installed straightly at a construction site as long as opening the foldable wall. CONSTITUTION: A foldable wall comprise a opening unit(20) and a cover plate. The opening unit comprises a plurality of inner rods(21) and outer rods(23). A plurality of the inner rods and the outer rods are arranged side by side with being folded. One side and the other side of the rods are connected seriately when being opened. The cover plate connects the two inner rods facing each other. The cover plate is connected each other and forms the whole wall while the opening unit is opened.
Patent KR-20120051855-A (KR)
Title: Light emitting device package, and light source device and backlight unit having the same
Inventor: PARK JUN SEOK
IPC: H01L33/48
Filed: 2010-11-15
Abstract: PURPOSE: A light emitting device package, a light source device including the same, and a backlight unit are provided to mix a fluorescent substance to a package body, thereby preventing reliability degradation due to moisture penetration. CONSTITUTION: A cavity(C) is formed on the upper surface of a package body(110) with a predetermined depth. Conductive leads(121,122) are formed on the package body. A light emitting device(130) is located within the cavity of the package body. The light emitting device is connected to the conductive leads by a wire(135). A filling material(140) fills a cavity region in order to cover the light emitting device.
Patent KR-20110058674-A (KR)
Title: Solid-state imaging device, method of manufacturing same, and electronic apparatus
Inventor: SAKANO YORITO
IPC: H01L27/146
Filed: 2010-11-15
Abstract: PURPOSE: A solid-state imaging device and a method thereof are provided to prolong a gate electrode of a transmission transistor to a photodiode part. CONSTITUTION: A plurality of photoelectric converters create signal charge. A pixel transistor(Tr) outputs the generated signal electric charge of the photoelectric converters as an electric signal. Each of the pixel transistor includes one or more transmission transistor(22). The transmission transistor transmits the signal charge to a floating diffusion coping with a drain. A gate electrode(22TG) of the transmission transistor is extended through a gate insulating film(22z).
Patent KR-20120058994-A (KR)
Title: 초간편 스노우체인 및 그 체결 및 해체 방법
Inventor: UHM HYUN DUK
IPC: B60C27/02
Filed: 2010-11-30
Abstract: 본 발명은 초간편 스노우체인 및 그 체결 및 해체 방법에 관한 것으로, 눈이 내리거나 내린 후에 미끄러운 눈길은 타이어에 스노우체인을 감아야 안전하게 차량을 운행할 수 있는데, 초보자나 여성도 쉽게 적은 힘으로 간편하고 용이하게 스노우 체인을 타이어에 체결할 수 있는 스노우 체인 체결장치로 설치 조립 및 해체가 간편하고, 소형, 대형 차종에 관계없이 겸용으로 사용할 수 있도록 타이어의 폭에 가변적으로 변형이 가능하면서 타이어에 다수개로 쉽게 장착하여 낱개로 교체가 가능한 구조로 하여 유지보수비를 최소화하는 초간편 스노우체인 및 그 체결 및 해체 방법에 관한 것이다. 
이를 위한 본 발명의 초간편 스노우체인은, 내측면에 타이어의 트레이드와 밀착을 위한 상측돌기가 있고, 지면과 닿는 하측면에 지면과 밀착을 좋게 하기 위한 외측돌기로 구성된 패드와; 상기 패드의 양측으로 타이어의 형상에 맞게 'U' 형태로 두 가닥으로 휘어져 타이어의 내측면과 외측면을 감싸는 형태의 강철선과; 상기 타이어의 내측면에서 미끄러짐을 방지하는 우레탄 재질의 고정봉과; 상기 고정봉과 마주보는 강철선에서 서로 이격을 이루면서 타이어의 외측면에 압력을 가해 미끄러짐을 방지하는 우레탄 재질의 롤러와; 상기 롤러와 연결되어 회전축에 의해 회전되어 타이어에서의 고정 및 이탈을 위한 레버; 로 이루어진 구조이다.
Patent KR-20120065568-A (KR)
Inventor: KIM BYUNG JIN
IPC: A63B69/00
Filed: 2010-12-13
Abstract: 본 발명은 피칭기구에 관한 것으로, 보다 상세하게는 볼이 투입되는 볼 투입부의 내측에 다수의 볼 플렌저를 설치하여 투수들이 볼을 잡는 그립(grip)의 역할을 하도록 함으로써 투구 되는 볼의 속도 및 구질을 다양하게 조절할 수 있을 뿐만 아니라, 투구되는 볼이 원하는 방향으로 정확히 제구(制球)되도록 함과 동시에, 야구 이외에 다른 구기종목의 훈련에도 사용 가능한 피칭기구에 관한 것이다. 
이를 위해, 본 발명에 따른 피칭기구는 상부에 야구공나 축구공와 같은 구기종목에 사용되는 볼이 내측으로 인입되기 위한 개구부가 형성된 몸체, 상기 몸체 전방에 착탈 가능하게 구비되되 다양하게 상기 야구공의 그립을 잡기 위한 다수의 볼 플렌저 및 상기 몸체 후방에 구비되되 인입된 상기 야구공을 전방으로 밀어내기 위한 이동부재가 구비된 투입부; 상기 투입부 전방에 위치하되 상기 이동부재에 의해 전방으로 이동된 상기 야구공을 전방으로 투척하기 위한 투척수단; 상기 투입부를 제어하기 위한 컨트롤박스; 및 상기 투입부, 투척수단 및 컨트롤박스가 설치되되 상부에 상기 야구공의 지름과 대응되는 관통구가 형성되는 고정플레이트와 상기 고정플레이트의 하부와 결합되되 지면에 고정 설치되기 위한 지지대로 이루어진 받침부;를 포함한다.
Patent KR-20120066203-A (KR)
Title: Ship having fortified engine room for protecting crew from pirates
Inventor: HONG KI YOUNG
IPC: B63B11/00
Filed: 2010-12-14
Abstract: PURPOSE: A ship having an engine room is provided to escape sailors into an engine room and a steering gear room in order not to be overwhelmed when pirates trespass on board. CONSTITUTION: A ship having an engine room(100) comprises a steering housing(300) and a steering gear room(200). The steering housing collects sailing information for sailing a ship. An engine is arranged in an engine room. The steering gear room controls direction of a rudder. The engine room receives the sailing information collected in the steering housing and comprises an emergency control unit(120) for controlling sailing of the ship.
Patent KR-20110068897-A (KR)
Title: Adaptive image coding apparatus and method
Inventor: LIM SUNG CHANG
IPC: H04N19/593
Filed: 2010-12-14
Abstract: PURPOSE: An adaptive image encoding apparatus and method thereof are provided to adaptively select an encoding parameter of an encoding target block from a reference block and to increase the performance of image compression. CONSTITUTION: A control unit restores a plurality of blocks within a first slice(S110). The control unit determines one block of restored blocks into a reference block(S120). The control unit determines an encoding parameter of a reference block(S130). The control unit adaptively encodes a target block within the first slice based on the encoding parameter(S140).
Patent KR-20120069874-A (KR)
Title: Pipe equiped with screw of leveling motor
Inventor: LEE JIN SEOB
IPC: B60Q1/115
Filed: 2010-12-21
Abstract: PURPOSE: A screw tube body of a leveling motor is provided to improve accuracy of assembly and reliability of operation by including an O-ring which is inserted to an axial direction and combined with a groove unit. CONSTITUTION: An axial unit(13) is formed into a cylindrical shape which is arranged at the center axis portion of a leveling motor in an axial direction. A shaft is accepted in the axial unit and the axial unit moves the axial direction. A groove unit(11) is formed into a groove shape at the outer circumference of one end side of the axial unit along the columnar direction. A hollow portion is formed in the center of an O-ring. The O-ring is formed into a ring shape. A magnet or a coil is arranged on the outer peripheral side of a screw tube body(10).
Patent KR-20120072089-A (KR)
Title: Apparatus for blocking bad odor from street inlet of runoff
Inventor: KIM HEUNG SUNG
IPC: E03F5/04
Filed: 2010-12-23
Abstract: PURPOSE: An offensive odor cutoff apparatus of a street inlet is provided to completely cut off offensive odors flowing to a sewer pipe from flowing backward to a street inlet. CONSTITUTION: An offensive odor cutoff apparatus of a street inlet comprises a street inlet box(10) and a floating body(20). The street inlet box is inserted into a street inlet(2) and has a funnel-shaped part(12). The top of the funnel-shaped part is opened to receive rainwater, and the bottom has an outlet port(11). The floating body selectively seals the outlet port of the street inlet box. A sinker(23) is coupled to the bottom end of the floating body.
Patent KR-20120072807-A (KR)
Inventor: KIM MU JIN
IPC: B60J5/00
Filed: 2010-12-24
Abstract: 본 발명은 건설기계의 엔진룸에 설치되는 사이드 도어에 형성된 오픈 홀의 개폐 범위를 조절할 수 있도록 하여 냉각 성능의 향상 및 엔진룸에 설치된 부품을 보호할 수 있으며, 엔진룸에서 발생 되는 소음이 외부로 방출되는 것을 방지할 수 있는 건설기계용 엔진룸 오픈 홀 개폐장에 관한 것으로, 본 발명의 일 측면에 따르면 건설기계의 엔진룸에 고정되는 사이드 도어에 설치되며, 사이드 도어에 형성된 오픈홀의 개폐 범위를 조절할 수 있도록 사이드 도어에 설치되는 슬라이딩 도어를 포함하여 이루어지는 것을 특징으로 하는 건설기계용 엔진룸 오픈홀 개폐장치가 제공된다.
Patent KR-20120074638-A (KR)
Title: Ultra thick steel sheet for pressure vessel having excellent central properties and hydrogen induced cracking resistance, and method for manufacturing the same
Inventor: JUNG HWAN GYO
IPC: C22C38/04
Filed: 2010-12-28
Abstract: PURPOSE: A very thick steel sheet with excellent material properties of a center portion and hydrogen induced cracking resistance for a pressure vessel is provided to improve the properties of a center of a steel sheet by applying a forging technology instead of general steelmaking and continuous casting processes. CONSTITUTION: A very thick steel sheet for a pressure vessel contains 0.05~0.25wt% C, 0.05~0.5wt% Si, 0.5~1.5wt% Mn, less than 0.012wt% P, less than 0.0015wt% S, 0.005~0.1wt% Al, 0.05~0.4wt% Ni, 0.005~0.03wt% Nb, 0.0005~0.003wt% Ca, 0.001~0.01wt% N, residual Fe, and inevitable impurities. The steel sheet comprises more than 70% ferrite and residual perite. The steel sheet additionally comprises more than one selected from a group containing Cu 0.05~0.3wt%, Mo 0.02~0.2wt%, Cr 0.05~0.4wt%.
Patent KR-20120075227-A (KR)
Title: Uuder body for electric vehicle
Inventor: KIM JAE HYUN
IPC: B60K1/04
Filed: 2010-12-28
Abstract: PURPOSE: An electric vehicle under body is provided to reduce the number of batteries for reducing the weight of a vehicle according to the driving condition of a vehicle through multiple selective replacement and mounting of batteries. CONSTITUTION: An electric vehicle under body(1) comprises a multiple type battery mounting portion(10), an under body portion(30'), and a reinforcing under body(30). The multiple type battery mounting portion is formed to select the number of batteries in a vehicle. The multiple type battery mounting portion is formed one portion of the under body portion. The reinforcing under body reinforces the strength of the under body portion and comprises one or more expanded portions(50).
Patent KR-20120076906-A (KR)
Title: Optical transmitting apparatus and method for integrating wire network and wireless network
Inventor: KANG CHOON KUG
IPC: H04B10/572
Filed: 2010-12-30
Abstract: PURPOSE: An optical transmission apparatus and a method thereof are provided to integrate a wired communication optical transmission network and a wireless communication optical transmission network. CONSTITUTION: A plurality of DWDMs(Dense Wavelength Division Multiplexing) OTX(Optical Transmitters)(31-33) transfers downlink radio network data of a COT(Central Office Terminal) REC(Radio Equipment Control). A DWDM Mux(35) multiplexes a plurality of downlink wireless network data of respectively different wavelengths. A general OTX(34) transfers downlink wired network data. A coupler(37) couples multiplexed downlink wireless network data with downlink wired network data.
Patent KR-20120077118-A (KR)
Title: Dyeing machine of persimmon juice dye
Inventor: KIM MI JA
IPC: D06P1/34
Filed: 2010-12-30
Abstract: PURPOSE: A persimmon juice dyeing machine is provided to lower the cost for dyeing and to prevent tank from corrosion. CONSTITUTION: A persimmon juice dyeing machine comprises: a tank(100) containing persimmon juice dyeing solution(D); a frame(200) which is attached on the outside of the tank and support the tank; and a pressing device(300) which is mounted at the front portion of the tank and dehydrates the dyeing solution. The tank comprises: a tank body(110) having an inlet/outlet(113); a heater pipe(117) for circulating steam; a circulation roller(120) for rolling and circulating a fabric sheet; an auxiliary roller(130) which is supported to rotate the inside; and a motor for driving the circulation roller and auxiliary rollers.
Patent KR-20120077381-A (KR)
Title: Substrate processing apparatus and substrate processing method
Inventor: YOUK CHANG YOUNG
IPC: H01L21/3065
Filed: 2010-12-30
Abstract: PURPOSE: A substrate processing apparatus and a substrate processing method using the same are provided to prevent the decrease in plasma density by applying a negative bias through a side electrode board according to plasma generated within the chamber. CONSTITUTION: A chamber(50) generates plasma by applying RF power to a top and bottom electrode or an antenna. A plurality of detectors(71) measures a plasma state, which is generated inside the chamber, on the inner wall side of the chamber. A plurality of side electrode boards(73) applies a negative bias to the inner wall side of the chamber. A bias voltage applying device(80) applies a bias voltage to the plurality of side electrode boards. A controller(85) applies the bias voltage to the plurality of side electrode boards.
Patent KR-20120078226-A (KR)
Title: Internal voltage generation device
Inventor: PARK MYUNG JIN
IPC: G11C16/30
Filed: 2010-12-31
Abstract: PURPOSE: An internal voltage generating circuit is provided to secure the operation stability of a semiconductor device by preventing a level of a source voltage from falling. CONSTITUTION: A program voltage generating unit(101) generates a program voltage by boosting or reducing a power voltage according to a program voltage generating signal. A first enable signal generating unit(102) generates a first enable signal if the level of the program voltage is higher than a threshold voltage. An erase voltage generating unit(103) generates an erase voltage by boosting or reducing a source voltage according to the first enable signal.
Patent KR-20100021651-A (KR)
Title: Applicator for applying fluid to a substrate, comprising valve mechanisms, method for cleaning said applicator, and valve mechanism for said applicator
Inventor: ACHRAINER JOHANN
IPC: B05B15/55
Filed: 2008-05-20
Abstract: Disclosed is an applicator (1) for applying fluid to a substrate, comprising valve mechanisms (21) which are arranged in a row and are each equipped with an application valve nozzle (31), and a distributing fluid chamber (11) that has a fluid intake duct (110). A cleaning valve mechanism (21) which is incorporated into the row of application valve mechanisms (21) and is fitted with a cleaning valve nozzle (30) is associated with the fluid intake duct (110). A flow path (100) for cleaning the fluid chamber (11) is formed between the fluid intake duct (110) and the cleaning valve mechanism (20) in the distributing fluid chamber (11), said flow path (100) being effective when the cleaning valve nozzle (30) is open. Also disclosed is a method for cleaning said applicator (1). In said method, pressurized cleaning fluid is applied to the distributing fluid chamber (11), the application valve mechanisms (21) are kept closed while the cleaning valve nozzle (30) is opened, and the cleaning valve nozzle (30) is then closed while the application valve mechanisms are opened when the pressurized cleaning fluid is applied to the distributing fluid chamber (11). A valve mechanism (2) of the applicator (1) encompasses a detachably mounted nozzle diaphragm (3, 4) which unblocks a valve piston (51) in the removed state. The valve mechanism (2) further encompasses a straight fluid duct that remains free of flow corners. A setting piston (61) is movably mounted for adjusting and setting the stroke of the valve piston (51).
Patent KR-20100024515-A (KR)
Title: Surface emitting laser, surface emitting laser array, optical scanning device, image forming apparatus, optical transmission module and optical transmission system
Inventor: SATO SHUNICHI
IPC: H01S5/187
Filed: 2008-11-13
Abstract: A disclosed surface emitting laser is capable of being manufactured easily, having a higher yield and a longer service lifetime. In the surface emitting laser, a selectively-oxidized layer is included as a part of a low refractive index layer of an upper semiconductor distribution Bragg reflector; the low refractive index layer including the selectively-oxidized layer includes two intermediate layers adjoining the selectively-oxidized layer and two low refractive index layers adjoining the intermediate layers. Al content rate in the intermediate layers is lower than that in the selectively-oxidized layer, and Al content rate in the low refractive index layers is lower than that in the selectively-oxidized layer. This configuration enables providing more control over the thickness and oxidation rate of the oxidized layer, thereby enabling reducing the variation of the thickness of the oxidized layer.