baber/WOPTO huggingface dataset:
Patent JP-2008142189-A (JP)
Title: Pinball game machine
Inventor: NISHIMURA HIROSHI
IPC: A63F7/02
Filed: 2006-12-07
Abstract: <P>PROBLEM TO BE SOLVED: To simplify combinations of necessary game-related signals, selection of the game-related signals, and connection work of a signal line with respect to an external connector.  <P>SOLUTION: A first external connector board 42 is provided with a plurality of external connectors 55a, 55b, 56a, 56b, 57a, and 57b capable of taking out a plurality of kinds of game-related signals. The first external connector board 42 or a second external connector board 43 different from the first external connector board 42 is provided with selection means 64 to 66 for alternatively selecting a plurality of game-related signals in a unit group by each unit group by grouping a plurality of kinds of game-related signals into a plurality of unit groups with a plurality of game-related signals smaller in the number than the number of kinds of the plurality of kinds of game-related signals as unit groups, and selected external connectors 67 to 69 capable of taking outside the game-related signals selected by the selection means 64 to 66.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008145675-A (JP)
Title: Display device
Inventor: YODA YUSUKE
IPC: G09F13/12
Filed: 2006-12-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a display device capable of displaying an image with depth.  <P>SOLUTION: The display device A has a light guide plate 4 having an incident surface 41, a reflecting surface 42 where a reflecting region 42a formed in the shape of an image to be displayed, and a projection surface 43, and a light source 3 disposed right in front of the incident surface 41, and is configured to display the arbitrary image through the projection surface 43 by reflecting light L made incident from the incident surface 41 by the reflecting surface 42 forward in a projection direction, and the display device is provided with a total reflecting surface 5a disposed behind the light guide plate 4 in the projection direction, and a half-mirror 6 disposed in front of the light guide plate 4 in the projection direction and reflecting part of the light L traveling from behind in the projection direction to behind in the projection direction while transmitting the remaining part forward in the projection direction.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008148066-A (JP)
Title: Image processor, and its control method, and control program
Inventor: KIKO MASAKAZU
IPC: H04N1/387
Filed: 2006-12-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image processor to control processor performance according to a user's preference.  <P>SOLUTION: The user selects which mode is taken for an operation, a normal copy mode or a speed preference copy mode at copying and changes the content of vectorizing processing according to the selection mode. That is, the entire vectorizing processing is conducted in the case that the normal copy mode is selected, and only partial vectorizing processing is conducted in the case that the speed preference copy mode is selected. Thus, vectorizing processing becomes variable according to a request of the user.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2007184574-A (JP)
Title: Organic thin-film transistor and organic light-emitting display device
Inventor: KANG TAE-MIN
IPC: H01L27/32
Filed: 2006-12-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide an organic thin-film transistor which is provided with an organic semiconductor layer pattern structure which can protect already formed electrode wiring during a patterning process of the organic semiconductor layer.  <P>SOLUTION: The organic thin-film transistor comprises a gate electrode 113, a source electrode 111 and a drain electrode 112 which are insulated from the gate electrode 113; and an organic semiconductor layer 180 which is insulated from the gate electrode 113, and contacts the source electrode 111 and the drain electrode 112. The organic semiconductor layer 180 covers the source electrode 111 and the drain electrode 112.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2008146606-A (JP)
Title: Image forming apparatus and its control method
Inventor: KAYAMA HIROYUKI
IPC: B41J29/38
Filed: 2006-12-13
Abstract: <P>PROBLEM TO BE SOLVED: To improve processing efficiency without performing useless processing when continuously performing two or more pieces of processing for realizing a function relating to image formation.  <P>SOLUTION: Whether or not to preserve processed data generated in a work flow is judged according to data inputted in an input process, and the performance of the workflow including preservation processing and the performance of the workflow without preservation are switched according to the judged result.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2007180537-A (JP)
Title: Cmos image sensor and manufacturing method thereof
Inventor: LIM KEUN HYUK
IPC: H01L27/146
Filed: 2006-12-15
Abstract: <P>PROBLEM TO BE SOLVED: To provide a CMOS image sensor having uniform characteristics, and a manufacturing method thereof.  <P>SOLUTION: This CMOS image sensor includes a semiconductor substrate in which an active region and an element isolation region are segmented, a photodiode region and a transistor region which are formed on the active region, a gate electrode formed on the transistor region and having first and second heights, and a diffusion region formed by implanting impurity ions into the photodiode region and the transistor region.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007334286-A (JP)
Title: Plasma display device
Inventor: RYU SEONG NAM
IPC: H01J11/34
Filed: 2006-12-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a plasma display device lowering the manufacturing cost for a panel equipped in the plasma display device by removing a transparent electrode made of ITO, and improving blinking of a display picture and generation of a bright spot.  <P>SOLUTION: The plasma display device includes an upper substrate, a scan electrode and a sustain electrode formed on the upper substrate, a dielectric layer which covers the scanning electrode and sustain electrode, a lower substrate disposed facing the upper substrate, and address electrodes formed on the lower substrate. At least one of the scan electrode and sustain electrode is formed as one single layer, and a reset signal including a gradually falling setdown period is supplied to the scan electrode more than two times in at lest one reset period among a plurality of subfields.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008152045-A (JP)
Title: Fixing device and image forming apparatus
Inventor: KAKISHIMA AYA
IPC: G03G15/20
Filed: 2006-12-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a fixing device and an image forming apparatus which can suppress an image fault caused by heat of a pressure member being in contact with a recording medium.  <P>SOLUTION: A cooling mechanism 80 is disposed in contact with a pressure roll 62 of the fixing device 60. The cooling mechanism 80 includes a heat absorbing part 81 disposed in contact with the peripheral face of the pressure roll 62, and a heat dissipating device. In the heat absorbing part 81, a heat transfer belt 81B is rotatably disposed around a heat absorption pad 81P in which a coolant passage 81Pe is formed. The heat dissipating device cools the pressure roll 62, via the heat transfer belt 81B, by means of coolant circulating between the coolant passage 81Pe and a heat exchanger.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008158665-A (JP)
Title: Transceiver module
Inventor: YAMAGAMI TORU
IPC: G06F1/18
Filed: 2006-12-21
Abstract: <P>PROBLEM TO BE SOLVED: To firmly fix an upper sleeve and a lower sleeve composing a pull sleeve, in a transceiver module.  <P>SOLUTION: In the pull sleeve 50, the upper sleeve 51 and the lower sleeve 61 are combined, and are fixed by clips 70, 70L fitted on both the sides. The clip 70 has a nearly U-shaped body part 71 long in a Z direction, an upper arm part 72, and a lower arm part 73, and is formed with a rectangular cutout part 74 inside the body part 71. The upper sleeve 51 and the lower sleeve 61 respectively have slits 55, 65, and side plate side protrusion parts 56a, 66a are formed inside the respective slits 55, 65. The cutout part 74 is fitted on the side plate side protrusion parts 56a, 66a such that it sandwiches them in an aligning state.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008157556-A (JP)
Title: Filter detaching device for air conditioner
Inventor: YAMASHITA TETSUYA
IPC: F24F13/28
Filed: 2006-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a filter detaching device capable of preventing soiling of hands, and suppressing scattering of dust when detaching an air filter in an air conditioner.  <P>SOLUTION: The filter detaching device 20 is provided with a filter housing box 21 detachably attached to an air conditioner body 1, a filter transfer means 22 for transferring the air filter 5 to the filter housing box 21, and a driving means 23 for driving the filter transfer means 22. Accordingly, the soiled and used air filter 5 attached with dust can be transferred to the filter housing box 21 and disposed without direct contact of the hands.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008155592-A (JP)
Title: Luminous laminate and luminous thread
Inventor: KUWAKI KATSUHIRO
IPC: D02G3/06
Filed: 2006-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a luminous laminate and luminous thread having improved availability and convenience at low cost, which can prevent the problems of delamination, simplify a manufacturing method, develop luminous characteristics and irises, and which can be used for a long period.  <P>SOLUTION: A first laminate is formed by laminating an adhesive layer having adhesiveness on a surface of a first photoluminescent film which selectively reflects a light ray having wave length of 350-800 nm. A luminous layer transferring material is separately prepared by making a resin, which contains luminous pigment having luminous characteristics, overlie a surface of a release substrate film as a luminous layer. The luminous laminate is obtained by transferring only the luminous layer on the surface of the adhesion layer of the first laminate.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008158451-A (JP)
Title: Toner for two-component developer
Inventor: SATO KOSUKE
IPC: G03G9/08
Filed: 2006-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a toner for a two-component developer which can enhance the image quality of a formed image when mixed with a carrier and used as a two-component developer, and which can continue to form stable good images without degrading image quality even if repeatedly used in image formation over a long period of time.  <P>SOLUTION: The toner for a two-component developer is obtained by externally adding silica having a primary particle diameter of 10-25 nm and a charge amount of 300-600 μC/g as an external additive to cylindrical toner particles 13 produced by drawing a molten toner component in a cylindrical fiber form and carrying out cutting.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008157207-A (JP)
Title: Control device of internal combustion engine
Inventor: OGAWA MASARU
IPC: F02D45/00
Filed: 2006-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of accurately calculating engine torque or, to be more specific, net average effective pressure, even if a combustion state is changed.  <P>SOLUTION: This control device calculates an air mass flow rate Gair per cycle supplied to the internal combustion engine (S10), and calculates a target value KCMD of an equivalent ratio indicating the ratio of the air mass flow rate and a fuel mass flow rate (S12). The fuel mass flow rate calculated from the target value of the calculated air mass flow rate and the equivalent ratio is set as a fuel mass flow rate Gfuel per cycle to be supplied to the internal combustion engine (S14), and net heat efficiency ηe provided by dividing work We capable of taking out by making a round of the cycle by a calorific value Q supplied on the cycle is calculated based on the operation state of the internal combustion engine (S16), and the net average effective pressure Pme corresponding to a value provided by dividing the work by the volume of the internal combustion engine is calculated based on a calorific value Cv, the fuel mass flow rate Gfuel and the net heat efficiency ηe (S18).  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008164657-A (JP)
Title: Incorrect detection prevention apparatus and image forming apparatus
Inventor: SHAKUI TOSHIMASA
IPC: G03G21/00
Filed: 2006-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To surely and effectively prevent a sensor detecting existence of recording paper from incorrect detection.  <P>SOLUTION: CPU91 in a copying machine is provided with; a first judging part 911 judging whether or not a detection signal meaning that there is no recording paper is continuously acquired from a detection sensor 74 for only the first number of times N1 for every one hour during a first period T1, a final paper judgement part 912 judging whether or not it is the final piece of paper, a second judgement part 913 judging whether or not the detection signal meaning that there is no recording paper is continuously acquired from the detection sensor 74 only for the second number of times N2 for every two hours during a second period T2 when judged to be the final piece of paper and the detection signal is acquired by the first judgement part 911, and a jamming judgement part 914 judging that paper jamming is occurring when judged that the detection signal is not acquired by the second judgement part 913.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008164718-A (JP)
Title: Image forming method
Inventor: YAMAZAKI HIROSHI
IPC: G03G15/20
Filed: 2006-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image forming method which does not cause image stain due to fixing offset and does not cause winding to the heating belt side even in both-side printing when performing image formation by using an image forming apparatus provided with a fixing device having a film-like heating means and a pressing roller.  <P>SOLUTION: In the image forming method having a process of fixing a toner image by using the fixing device of a contact heating method, a resin constituting a toner contains polyester resin and styrene-acryl based resin, wherein the polyester resin is formed by condensation-polymerizing polyvalent carboxylic acid and polyhydric alcohol under the existence of styrene monomer and acrylic acid ester monomer in an aqueous medium, thereafter, the styrene-acryl based resin is formed by radical-polymerizing the styrene monomer and the acrylic acid ester monomer, and the fixing device of the contact heating method has the film-like heating means and the belt-like pressing roller.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008164037-A (JP)
Title: Pipe joint
Inventor: UDO FUMIYASU
IPC: F16L37/08
Filed: 2006-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a pipe joint capable of preventing wear by rotation of a male body and a female body.  <P>SOLUTION: This pipe joint 10 is composed of the male body 12 and the female body 30 for inserting the male body 12 therein. The male body 12 has a small outside diameter on the front end side, and is provided, from the front end, with a first cylindrical part 14, an outer tapered part 16, a second cylindrical part 18, a trapezoidal groove 20 locked to an elastic lock ring body 42, and a third cylindrical part 65. The female body 30 has a small inside diameter on the back side, and is provided, from the entrance side of an opening 32, with a first inner wall surface 34, a two-step groove 40 comprising a lock groove 36 and a storing groove 38 for storing the elastic lock ring body 42 therein, a second inner wall surface 44, an inner tapered part 46, and a third inner wall surface 48. A plurality of recessed parts 65A are axially formed along an outer peripheral surface in the third cylindrical part 65, and four projecting parts 66 are axially formed on the first inner wall surface 34. In connecting the male body 12 to the female body 30, the four projecting parts 66 are respectively engaged with the recessed parts 65A.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008164216-A (JP)
Title: Air conditioner
Inventor: HAYASHI JUNJI
IPC: F24F5/00
Filed: 2006-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To solve a problem in which defrosting takes a long time because a refrigerant circulating amount is remarkably lowered in an initial stage of defrosting, while a defrosting operation is periodically performed as heating performance is degraded by frosting caused by condensation and freezing of moisture in the air on a surface of fins of an outdoor heat exchanger during a heating operation in an air conditioner.  <P>SOLUTION: The water stored in a water receiving container 21 in the defrosting operation is carried by a water filling pipe 22 by a pump 23, and filled in the outdoor heat exchanger 3, thus the defrosting is performed by latent heat, and the defrosting operation is completed in a short period of time.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008167153-A (JP)
Title: Variable data image generating device, variable data image formation system and variable data image generation program
Inventor: YANAGIDA HIROSHI
IPC: G06F3/12
Filed: 2006-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To accelerate variable image formation including elements requiring time in drawing.  <P>SOLUTION: This image formation system is provided with a plurality of graph image generating parts 10 and a page image generating part 20. A distributing part 30 transfers inputted variable data 100 to the page image generating part 20, divides the variable data 100 into record units and distributes the variable data 100 to the respective graph image generating parts 10. The graph image generating parts 10 execute a graph drawing command in a layout program 200 with a distributed record as an argument and register a graph image of the execution result in a graph image managing part 50. The page image generating part 20 applies the layout program 200 to sequentially generate a print image in order of the first record of the variable data 100. The page image generating part 29 acquires and uses a graph image corresponding to the command from a graph managing part 50 about the graph drawing command at that time.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008165039-A (JP)
Title: Manufacturing method of optical element, intermediate member and optical element
Inventor: MIYAZAKI TAKEMI
IPC: B29L11/00
Filed: 2006-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a manufacturing method of an optical element by which the optical element can be easily formed by using a thermosetting resin and to provide an intermediate member used therefor and the optical element formed thereby.  <P>SOLUTION: Since the thermosetting resin is cured by heating in a state where the intermediate member 30 is compressed by relative movement of a pair of metal molds 10,20 in an approaching direction, the compressed intermediate member 30 plays a role of a seal even when viscosity of the thermosetting resin of a liquid state is low and leakage of the thermosetting resin of the liquid state from a runner or a gate can be suppressed. Moreover since the formed optical element OE can be released from a mold integrally with the intermediate member 30, provision of an extrusion pin or the like at a lower mold 10 or the like is unnecessary, consequently provision of a sliding part is dispensed with and thereby its cleaning is also unnecessary to save labor and time.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008161606-A (JP)
Title: Partial denture
Inventor: NAKAGAWA HIDEO
IPC: A61C13/267
Filed: 2006-12-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide a partial denture to be easily adjusted in a short time by including at least one semi-circular arcuate recession to be fitted to a retaining tooth and raising precision in shaping and positioning the semi-circular arcuate recession of the partial denture, which reduces a load on the retaining tooth.  <P>SOLUTION: The semi-circular arcuate recession 25 includes: a tongue side part constituting a tongue side end part; and a cheek side part constituting a cheek side end part. The cheek side part has a cheek side metallic arm 5 which is recessed with respect to the retaining tooth, made of a member being different from that of the tongue side part, and formed of linear metal having a belt shape surface F which faces the retaining tooth. The root part of the cheek side metallic arm is embedded in a denture base 11 and fixed.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2006518642-A (JP)
Title: 組織の分離及び配置用のカテーテル組立体
IPC: A61B18/14
Filed: 2004-02-23
Abstract: 組織分離カテーテル組立体であって、先端シャフト部分を有する回動可能なシャフトと、そのシャフトに沿って延在する組織分離装置を含む。組織分離装置は、先端シャフト部分を向いた収納状態と先端シャフト部分から離れて外側に延出した作動状態との間で移動可能な先端分離部分を先端シャフト部分に有する。配置装置が、径方向に拡張した状態に移動可能である。拡張可能な管状部材が移動可能であって、その外側端部が配置装置に概ね軸方向に整合して、分離された組織部分をこの管状部材と配置装置との間に保持し、患者から分離された組織部分を除去するのを助けることができる。
Patent JP-2006520450-A (JP)
IPC: F16D65/092
Filed: 2004-03-12
Abstract: A disc brake having a brake carrier ( 10 ) which may be fastened to the vehicle and to which bolts are fastened, comprises brake pads ( 32 a, 32 b), in the supporting plates of which U-shaped recesses ( 40, 40 ') are formed, which are placed onto the bolts, such that the brake pads are axially movably guided relative to the brake disc.
Patent JP-2006521317-A (JP)
IPC: C07C45/35
Filed: 2004-03-20
Abstract: The invention relates to a method for the heterogeneously catalysed partial gas phase oxidation of propene to form acrolein, whereby the initial mixture of reaction gas is oxidised on a fixed-bed catalyst bed arranged in two successive reaction zones A and B, with a propene load < 160 NI propene/I fixed-bed catalyst bed.h. The highest temperature of the reaction gas mixture inside the reaction zone A is higher than the temperature of the reaction gas mixture inside the reaction zone B.
Patent JP-2006522044-A (JP)
Title: 偏頭痛の治療のための化合物１−［ｎ２−［３，５−ジブロモ−ｎ−［［４−（３，４−ジヒドロ−２（１ｈ）−オキソキナゾリン−３−イル）−１−ピペリジニル］−カルボニル］−ｄ−チロシル］−ｌ−リシル］−４−（４−ピリジニル）−ピペラジンの塩酸塩とスマトリプタンとの組み合せ使用
IPC: A61K31/517
Filed: 2004-03-26
Abstract: 本発明は、頭痛、偏頭痛及び群発性頭痛の治療又は予防方法であって、活性物質塩基1-[N 2 -[3,5-ジブロモ-N-[[4-(3,4-ジヒドロ-2(1H)-オキソキナゾリン-3-イル)-1-ピペリジニル]-カルボニル]-D-チロシル]-L-リシル]-4-(4-ピリジニル)-ピペラジン（A）の塩酸塩の治療上効果的な量と、抗偏頭痛物質スマトリプタン又はその生理的に許容される塩の治療上効果的な量との合同投与を含む方法、及び対応する医薬組成物及びその調製に関する。
Patent JP-2006521443-A (JP)
Title: ポリオレフィンナノ複合材料組成物
IPC: C08L23/10
Filed: 2004-03-15
Abstract: Ａ．約５乃至約２０質量％の、オレフィンポリマー過酸化物、オレフィンポリマー過酸化物のアイオノマー、グラフト化されたオレフィンポリマー過酸化物、及びそれらの混合物から選択される相溶化分散剤、Ｂ．約１乃至約１５質量％のスメクタイト粘土、及びＣ．約６５乃至約９４質量％のオレフィンポリマー物質を含み、成分Ａ＋Ｂ＋Ｃの合計が１００質量％に等しい、向上した機械的性質を有するナノ複合材料組成物。
Patent JP-2006527202-A (JP)
Title: Ａ１アデノシンレセプターアンタゴニスト
IPC: A61P37/08
Filed: 2004-06-04
Abstract: 本発明は、新規アデノシンレセプターアンタゴニスト、より具体的には、Ａ １ アデノシンレセプターアンタゴニストを提供する。本明細書中に開示されるＡ １ アデノシンレセプターアンタゴニストを含む薬学的組成物および薬学的に受容可能なキャリアが、さらに提供される。組成物はまた、新規Ａ １ アデノシンレセプターアンタゴニストを含む診断アッセイ型プローブを含み、それは放射性の物質または非放射性物質で標識されるか、あるいは結合体化される。本発明のＡ １ アデノシンレセプターアンタゴニストを投与する工程を包含する、Ａ １ アデノシンレセプター関連疾患を処置するための方法もまた開示される。この新規Ａ １ アデノシンレセプターアンタゴニスト組成物は、診断方法および造影方法におけるさらなる使用が見出される。
Patent JP-2007516563-A (JP)
Title: シングルエンドハロゲン白熱電球
IPC: H01K1/38
Filed: 2004-06-21
Abstract: シングルエンドハロゲン白熱電球は、ハロゲン化合物材料を含む密閉キャビティ（１１４）を有する外囲器（１１２）と、外囲器の一端におけるピンチ又はプレスシール（１１０）と、密閉キャビティ内に配置されるコイル線フィラメント（１００）を有する。第１及び第２のフィラメント脚（１０２、１０４）は、フィラメントを形成する線の直径と略同じ直径を有するよう真っ直ぐに引き延ばされたコイル線フィラメントの一部をそれぞれ有する。第１の電流供給線（１０６）は、プレスシールを通り密閉キャビティ内に延在する。第１の電流供給線は、その終端に形成された第１のクランプ（１１８）を有する。第１のクランプは、第１の電気接続を確立し、密閉キャビティ内にフィラメントを懸架するよう第１のフィラメント脚をクランプする。第２の電流供給線（１０８）は、プレスシール内に延在し且つプレスシール内で終端する。第２の電流供給線は、第２の電気接続を確立するよう第２のフィラメント脚をクランプする第２のクランプ（１１６）を有する。第２のクランプは、プレスシール内に閉じ込められる。
Patent JP-2007528842-A (JP)
IPC: A61K9/00
Filed: 2004-06-07
Abstract: The present invention provides an aqueous formulation of human erythropoietin having the storage stability over a long period without serum albumin, in which the formulation comprises a pharmaceutically effective amount of human erythropoietin; non-ionic surfactant, polyhydric alcohol, neutral amino acid and sugar alcohol as stabilizers; isotonic reagent; and buffering reagent.