baber/WOPTO huggingface dataset:
Patent JP-2011117774-A (JP)
Title: Basket of spent fuel transportation and storage cask
Inventor: SHIMOJO JUN
IPC: G21F9/36
Filed: 2009-12-01
Abstract: <P>PROBLEM TO BE SOLVED: To reduce weight and size, while maintaining subcritical control.  <P>SOLUTION: A basket 1 is formed by combining an extrusion material 5 having a cross section of substantially an H shape, in the horizontal and vertical directions to form a lattice shape. In a cross-sectional view, when the longitudinal length of the extrusion material 5 is h, and the depth of a slit 5c is c, c corresponds to 1/4 of h. Furthermore, if the length of the longitudinal direction of respective blades 5a, 5a is set as a, and the distance between the two blades 5a, 5a is set as b, the relations a≥c and a/b≤4 are satisfied.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011117884-A (JP)
Title: Spectrophotometer
Inventor: MURAKAMI KENSUKE
IPC: G01J3/26
Filed: 2009-12-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide a spectrophotometer acquiring a continuous spectrum with high reliability over a wide measurement wavelength band in spite of its small size.  <P>SOLUTION: This spectrophotometer using Fabry-Perot filters 110 each made by oppositely disposing first and second, two mirrors 111 and 112 parallel to each other with an air layer of a prescribed thickness interposed between them, includes a plurality of sensor units 10 each equipped in a one-to-one relation with the Fabry-Perot filter 110 and an infrared detection element 122 for receiving an infrared light passing through the Fabry-Perot filter 110 to output a light reception signal corresponding to the amount of light received. The sensor units 10 are juxtaposed on the same support substrate, with the infrared passbands of respective Fabry-Perot filters 110 made different from each other.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011116074-A (JP)
Title: Metal foil equipped with electric resistance film and board for printed circuit using the metal foil
Inventor: KUROSAWA TOSHIO
IPC: H05K1/16
Filed: 2009-12-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide a metal foil which enables an electric resistance material to be built-in in a board by further forming an electric resistance film on a copper foil, and has little variation in a resistance value by increasing the adhesion of the electric resistance film, and to provide a board for a printed circuit.  <P>SOLUTION: The metal foil includes a copper-zinc alloy film formed on a metal foil surface adjusted to 4.0-6.0 μm in ten-point average roughness Rz measured with an optical means, an stabilizing film consisting of at least one component selected from among zinc oxide, chromium oxide and nickel oxide formed on the copper-zinc alloy film, and the electric resistance film consisting of a nickel-chromium alloy formed on the stabilizing film, and further includes tetraethoxysilane adsorbed and dried on the electric resistance film. The variation in the resistance value of the electric resistance film is limited within ±10%.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2010100631-A (JP)
Title: Method for separating ligneous constituent, ligneous constituent, industrial material, and apparatus for separating ligneous constituent
Inventor: AMANO YOSHIHIKO
IPC: C10L5/44
Filed: 2009-12-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for efficiently separating cellulose, hemicellulose and lignin constituents from a biomass resource as a starting material.  <P>SOLUTION: A biomass resource as a starting material is treated with Basidiomycota or Ascomycota, and the treated product is treated with high-pressure hot water. Further, solid residues are separated from the high-pressure hot-water treated product. Ligneous constituents can thus be efficiently separated.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2011121801-A (JP)
Title: METHOD FOR PRODUCING LiFePO4 AND LITHIUM ION SECONDARY BATTERY
Inventor: TOKITA KOJI
IPC: H01M4/58
Filed: 2009-12-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for producing LiFePO<SB>4</SB>that realizes a lithium ion secondary battery excellent in discharge capacity and cycle characteristics.  <P>SOLUTION: The method for producing LiFePO<SB>4</SB>comprises a step of enclosing a mixture in a sealed container filled with mixed gas of oxygen and inert gas and heating the mixture in the sealed container, provided that the mixture comprises: an iron source comprising bivalent iron and trivalent iron; a lithium source; a phosphate source; and a polar solvent. The iron source contains from 100 mass ppm to 10 mass% trivalent iron based on the total mass of bivalent iron and trivalent iron. The mixed gas contains 1-100 vol.ppm oxygen based on the total volume of the mixed gas.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011122499-A (JP)
Title: Egr cooler
Inventor: ISHII SHIN
IPC: F02M25/07
Filed: 2009-12-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide an EGR cooler inhibiting deterioration of the heat exchange performance by inhibiting adhesion of air bubbles in a heat medium such as cooling water to heat exchanging portions, while having a simple and inexpensive construction.  <P>SOLUTION: The EGR cooler is the EGR cooler 110 of an EGR device 100 refluxing a part of exhaust gas of an internal combustion engine 1 to a combustion chamber 5 through an EGR passage 101 as EGR gas. The EGR gas in the EGR passage 101 is introduced into the inside of a plurality of heat transfer pipes 111 and the heat medium such as cooling water is introduced to an outer peripheral side of the heat transfer pipes 111 to exchange heat between the EGR gas and the heat medium. An air bubble capturing means (mesh like element) 113 for capturing air bubbles is provided near at least a part of the heat transfer pipes 111.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011122086-A (JP)
Title: Novel reactive flame retardant and application thereof
Inventor: OGISO TETSUYA
IPC: C09K21/12
Filed: 2009-12-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a reactive flame retardant having all of various physical properties such as heat resistance, hydrolysis resistance, processability (solvent solubility) and adhesivity and photosensitivity, flame retardancy, softness, flexibility and sufficient mechanical strength and capable of sufficiently coping with the miniaturization and weight reduction of electronic component in electronic equipment, and to provide a photosensitive resin composition using the reactive flame retardant and a typical application thereof.  <P>SOLUTION: The reactive flame retardant in which a phosphazene compound having (a) phosphazene structure and containing (b) photosensitive group in a molecule is cross-linked by (c) an ester bond is used.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2010063168-A (JP)
Title: Video display device, video reproduction apparatus, video display method, and video reproduction method
Inventor: OKUMOTO HIDEAKI
IPC: H04N5/44
Filed: 2009-12-14
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a video display device capable of performing control to change a video image to a super-resolution image only by one of the video display device and a video reproduction apparatus.  <P>SOLUTION: A digital television receiver 11 that is the video display device, and a video reproduction apparatus 91 are connected via an interactive communication means for transmitting and receiving a control signal. When the digital television receiver 11 notifies the video reproduction apparatus about the inclusion of a super-resolution function, the video reproduction apparatus 91 turns off a super-resolution conversion processing section 914. Furthermore, the digital television receiver 11 transmits a command to turn off the super-resolution function to the video reproduction apparatus 91 and the super-resolution conversion processing section 914 is turned off. Such control prevents the digital television receiver 11 and the video reproduction apparatus 91 from doubly applying super-resolution conversion processing to a video image displayed by the digital television receiver 11 and the video reproduction apparatus 91, and deterioration in video quality can be prevented.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2011129179-A (JP)
Title: Information recording device and optical beam generating device
Inventor: HONGO KAZUYASU
IPC: G11B5/60
Filed: 2009-12-15
Abstract: <P>PROBLEM TO BE SOLVED: To provide high-reliability devices capable of acquiring composite light which has sufficiently high intensity, in an information recording device and an optical-beam generating device which uses a light generated by combining a plurality of light beams with one another.  <P>SOLUTION: The information recording device includes a light source 190, and a thermally assisted magnetic head 110. Each component and a function are described, as in the following section. The light source 190 includes a plurality of light-emitting parts for emitting light beams with differing frequencies, and a minimum frequency difference Δf among a plurality of light beams emitted from the plurality of light-emitting parts is set larger than a recording frequency fm, corresponding to the shortest recording length of an information recording medium 300.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2010153862-A (JP)
Title: Method of solving problem of shortening of line end of polycrystalline silicon by performing cut process twice
Inventor: CHUANG HARRY HAK LAY
IPC: H01L29/423
Filed: 2009-12-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method of improving an end of a gate strip by performing a cut process twice.  <P>SOLUTION: The method includes: a step for providing a substrate having a first active region 40 and a second active region 42; a step for forming a gate electrode layer on the substrate; a step for etching a gate electrode layer so that a first gate strip 60, a second gate strip 62 substantially in parallel with the first gate strip, and a sacrifice strip 66 located between the first active region and the second active region and connected with the first gate strip and the second gate strip although not in parallel with them are left; a step for forming a shielding part that covers part of the first gate strip and the second gate strip and exposes the sacrifice strip and part of the first gate strip and the second gate strip in an opening; and a step for etching the sacrifice strip and the part of the first gate strip and the second gate strip exposed in the opening.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2011129737-A (JP)
Title: Method of manufacturing semiconductor storage device, and semiconductor storage device
Inventor: YAHASHI KATSUNORI
IPC: H01L49/00
Filed: 2009-12-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a semiconductor storage device configured such that loss of an etching mask is small and residues which may cause a short circuit between adjacent memory cells are not left, and to provide the semiconductor storage device.  <P>SOLUTION: A columnar memory cell is formed by: forming a first groove extending in a first direction and forming first wiring 103 after forming a first wiring layer and a memory cell layer 104A on a semiconductor substrate 101; forming a thin film 161 on a sidewall of the first groove; burying an interlayer dielectric 105 in the groove to form a laminate; forming a second wiring layer on the laminate; forming a second groove 186 extending in a second direction and forming second wiring 106; removing the thin film 161 exposed from a bottom part of the second groove 186; and removing the memory cell layer 104A exposed from the bottom part of the second groove 186 up to an upper part of the first wiring layer. The thin film 161 is faster in etching rate than the interlayer dielectric 105 and removed before the part of an adjacent memory cell layer 104A.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011134794-A (JP)
Title: Winding core and method of assembling the same
Inventor: OKADA SHIGENORI
IPC: H01F41/02
Filed: 2009-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide an iron core for transformers that suppresses a decrease in an existence ratio of a magnetic material in the iron core, and is miniaturized and made light and reduces an excitation inrush current.  <P>SOLUTION: A plurality of loop-like magnetic blocks 11 are stacked in a radial direction. For each magnetic block, a plurality of grain-oriented silicon steel plates 12 are stacked in a radial direction, and a position of a cut section 13 formed between both the tips of the respective grain-oriented silicon steel plates is shifted for formation. Then, a non-magnetic sheet 16 is arranged continuous to the cut section.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011132353-A (JP)
Title: Transparent thermoplastic resin composition and molded resin product
Inventor: SUGIYAMA FUMITAKA
IPC: C08F220/18
Filed: 2009-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a transparent thermoplastic resin composition with excellent transparency, toughness and surface hardness.  <P>SOLUTION: This transparent thermoplastic resin composition includes: a copolymer A comprising 64-84 mass% of a structural unit derived from an aromatic vinyl compound and 16-36 mass% of a structural unit derived from a vinyl cyanide compound (provided the total content of the two structural units is 100 mass%); a copolymer B comprising 1-55 mass% of a structural unit derived from an aromatic vinyl compound, 0-36 mass% of a structural unit derived from a vinyl cyanide compound, and 45-90 mass% of a structural unit derived from a (meth)acrylate compound (provided the total content of the three structural units is 100 mass%); and a copolymer C comprising 70-100 mass% of a structural unit derived from a (meth)acrylate compound and 0-30 mass% of a structural unit derived from a monomer copolymerizable with the (meth)acrylate compound (provided the total content of the two structural units is 100 mass%), wherein the ratio of A/B/C is 3-70/3-70/3-70 (mass ratio), the total measured light transmittance is ≥70% for an individual molded resin product with a thickness of 2.4 mm, and the haze is ≤20%.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2010140035-A (JP)
Title: Light controlling sheet and surface illuminant unit
Inventor: KODAMA DAIJIRO
IPC: G02B5/02
Filed: 2009-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a light controlling sheet that makes it possible to illuminate a display screen so that brightness of the screen is uniform without unevenness regardless of a position from which the screen is viewed, particularly, a light-controlling sheet that causes gradual luminance variation even at large exit angles, and a surface illuminant unit.  <P>SOLUTION: The light-control sheet 24 is arranged on a direct surface illuminant unit and makes light emitted from light sources uniform and/or converges the light. The light-control sheet 24 includes a large number of unit lenses 241 arranged in parallel, with a lens surface of each unit lens protruding to the light-exiting side. The cross section of the lens surface of each unit lens 241 taken perpendicularly to the sheet surface is asymmetrical. The unit lens 241 is equipped with three kinds of curved surfaces comprising an apex surface WT forming an apex, an upper side surface WU that becomes an upper side from the apex surface WT in use, and a lower side surface WD that becomes a lower side from the apex surface WT in use. The apex surface WT, the upper side surface WU and the lower side surface WD are all different in the radius of curvature of the surface.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2011131001-A (JP)
Title: Game machine
Inventor: ICHIHARA TAKAAKI
IPC: A63F7/02
Filed: 2009-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a ready-to-win state performance for suppressing the decline of player's desire to play.  <P>SOLUTION: A Pachinko game machine 1 includes first and second start ports 2001, 2002, a main control board 4100, a peripheral control board 4140, and a liquid crystal display device 1400 having a first display panel 1400a and a second display panel 1400b disposed at a predetermined interval on the back side, in the view from the player, of the first display panel 1400a. The peripheral control MPU 4140a of the peripheral control board 4140 as display control means of the Pachinko game machine 1 achieves various performance display using display on the first display panel 1400a and display on the second display panel 1400b.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011139133-A (JP)
Title: Image capturing device, method for controlling image capturing device, and program
Inventor: SATO MUNEYUKI
IPC: G03B17/18
Filed: 2009-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To achieve full panoramic imaging in a normal image capturing device without requiring a user to carry out a complicated setting operation.  <P>SOLUTION: The image capturing device includes an image capturing unit which allows an adaptor with a full panoramic image capturing optical system for capturing a full panoramic image of a photographic subject to be removably attached thereto and comprises an image capturing optical system for capturing the photographic subject in one direction, and an image capturing element for capturing the photographic subject incident from the image capturing optical system, an attachment detection unit for detecting whether or not the adaptor is attached to the image capturing unit, and a control unit for controlling the setting of the image capturing device in accordance with characteristics of the full panoramic image capturing optical system when the adaptor is attached to the image capturing unit.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011138643-A (JP)
Title: Power feed connector
Inventor: HORI YASUNOBU
IPC: H01R13/629
Filed: 2009-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To perform smooth charging work in a power feed connector which has a charging device for feeding power to an electric machine, and is connected to a receiving-side connector of the electric machine.  <P>SOLUTION: The power feed connector "A" is provided with a cylindrical case 1 formed in a cylindrical shape and having a front end opening 1a opened at a front end in a center axis line L1 direction, a connector body 2 housed in the cylindrical case 1 in a state of being capable of sliding in the center axis line L1 direction, an operation lever 31 rotating in a virtual plane extended to the center axis line L1 direction by being axially supported by the cylindrical case 1, and a pushing part 32 fixed to the operation lever 31 so as to protrude to a rotation direction of the operation lever 31 for making an end 31a of the operation lever 31 move from a back end side to a front end side of the cylindrical case 1. The pushing part 32 is in contact with the back end side of the connector body 2, and the pushing part 32 pushes the connector body 2 to the front end side of the cylindrical case 1 in accordance with the rotation of one of rotation directions of the operation lever 31.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011137073-A (JP)
Title: Method for recovering polyethylene particle and apparatus for producing polyethylene particle
Inventor: TAKEUCHI YUTAKA
IPC: C08F6/00
Filed: 2009-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for efficiently and safely drying polyethylene particles obtained by a low-pressure slurry polymerization method, especially low-density polyethylene particles.  <P>SOLUTION: In the method, the polyethylene particles are dried and recovered in a steam tube dryer heated by water vapor having a temperature of less than 100°C when recovering the polyethylene particles by separating the polyethylene particles and a polymerization solvent from a slurry comprising the polyethylene particles and the polymerization solvent obtained by the low-pressure slurry polymerization method.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2010110637-A (JP)
Title: Chair and back cover
Inventor: KINOSHITA YOJIRO
IPC: A47C31/11
Filed: 2009-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a chair having a structure for attaching a back cover which can secure aesthetic appearance of the chair and has a higher strength and durability than a conventional one, and to provide a back cover for the chair.  <P>SOLUTION: The back cover C which is attached to a back rest 3 for forming a covering cloth consists of a cover body 6 and a plate body 7 attached to the inside of the cover body 6. The cover body 6 has a front cover 61 and a rear cover 62 forming a space for containing a cushion 63 inside, and a bag-like housing part 6S for housing the backrest 3 by putting it over the top-end of the backrest. The plate body 7 is attached to the inside of the housing part 6S. The housing part 6S is open downward only. When it is put over the top of the backrest 3, it is arranged backward from the space for containing the cushion 63.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2009531343-A (JP)
Title: キサンテート類とシクロデキストリン類の会合物およびそれらの使用
IPC: A61P11/00
Filed: 2007-03-13
Abstract: 本発明は、キサンテート類とシクロデキストリン類の会合物、そこから製造される医薬製剤、ならびにアルツハイマー病、ウイルス病、腫瘍、心血管疾患、および自己免疫疾患、例えばリウマチ、多発性硬化症、円形脱毛症、エリテマトーデス、脳卒中、肺浮腫を処置するための、または放射線防護剤として使用するための、これらの製剤を含有する医薬品に関する。本会合物は、一般式Iのキサンテート（式中、R 1 は適宜置換されたアリールまたはアルキル残基を表し、R 2 は金属原子、適宜置換されたアルキル、アルコキシ、アミノもしくはアンモニウム基またはハロゲンを表す）およびシクロデキストリン（この場合、シクロデキストリンは、置換または無置換アルファ-、ベータ-またはガンマ-シクロデキストリンであることができる）を含有する。さらにまた、本発明は、化学合成への前記会合物の使用にも関係する。
Patent JP-2009536151-A (JP)
Title: ナノ粒子
IPC: A61K47/42
Filed: 2007-03-30
Abstract: 本発明の目的は、安全性が高く、造影と温熱療法とＤＤＳを一度に行えることができ、かつ薬剤内包率が高いナノ粒子を提供すること。本発明は、表面に活性物質が固定化されている平均粒子粒径1〜500nmの無機ナノ粒子、及びポリマーから構成されるナノ粒子を提供する。
Patent JP-2009532861-A (JP)
Title: ドレイン及びソース領域にリセスを設けることでチャネル領域に極めて近接するトランジスタにストレスソース与える技術
IPC: H01L29/786
Filed: 2007-02-21
Abstract: 電界効果トランジスタ（１００、２００）の隣接するチャネル領域（１０４、２０４）中の歪みの生成が向上するように、ドレインならびにソース領域（１１４、２１４）にリセス（１１２Ｄ、２１２Ｄ）を設けることによって、コンタクトエッチストップ層などの高応力層（１１８、２１８）がリセス（１１２、２１２）に形成される。さらに、金属シリサイド（２１７）の望ましくない緩和効果を低減するか回避することによって、歪みのある半導体材料（２３０）がチャネル領域（１０４、２０４）に非常に近接して設けられることから、歪みを生成する実効性もまた向上する。ある態様では、さらに実効的な歪み生成メカニズムを得るように、両方の効果を組み合わせてもよい。
Patent JP-2009533598-A (JP)
Title: 改良された真空ポンプ
IPC: F04C29/12
Filed: 2007-04-05
Abstract: 本発明は，エンジンの下部領域，例えばエンジンのオイルサンプ内に取り付け可能な真空ポンプ（10）は，そのケーシング（12）が可動部材（18）を収めたキャビティ（14）を有する。可動部材（18）は，入口（32）を経てキャビティ（14）内に流体を流入させ，かつ，出口（34）を経てキャビティ（14）から流体を流出させて入口（32）に減圧を生じさせるように変位可能である。真空ポンプ（10）は，キャビティ（14）に対してオイルを供給するためのオイル供給路（84）を具える。さらに，オイル供給路（84）は，真空ポンプ（10）の不作動時にキャビティ（14）へのオイルの流入を阻止するバルブ（86）を具える。
Patent JP-2009540133-A (JP)
Title: 木材からのリグノセルロースパルプ
IPC: D21H11/00
Filed: 2007-04-04
Abstract: 本発明は、針葉樹に関しては１５°ＳＲで８ｋｍを上回る裂断長を有し、かつ無漂白のｏｔｒｏパルプに対して少なくとも１５％のリグニン含有率を有し、かつ広葉樹に関しては２０°ＳＲで５．０ｋｍを上回る裂断長を有し、かつ無漂白のｏｔｒｏパルプに対して少なくとも１２％のリグニン含有率を有する、木材からなるリグノセルロースパルプに関する。
Patent JP-2009540119-A (JP)
Title: 改良された酸性処理流体及び関連する方法
IPC: C23G1/02
Filed: 2007-06-06
Abstract: 酸性環境の金属腐食を防止するために有用なリン成分を含む処理流体、及び関連する使用方法を提供する。前記処理流体の使用方法の例には、水性塩基流体、弱酸又はその塩、及びリン成分を含む処理流体を提供すること；及び処理流体を地下層に導入することを含むことができる。 【選択図】なし
Patent JP-2009543349-A (JP)
Title: 完全なパワートレインのためのチップモジュール
IPC: H01L25/07
Filed: 2007-04-25
Abstract: チップモジュールが開示されている。これには、回路基板、パワートランジスタを含み当該回路基板上に設けられた半導体ダイ及びパッシブ電子コンポーネントを含む。当該パッシブ電子コンポーネントは、当該半導体ダイと電気的に連絡しておりかつ当該半導体ダイと熱的に連絡している。
Patent JP-2009543960-A (JP)
Title: モータ駆動式の開閉システムにおける挟み込みを防止するための方法と装置
IPC: E05F15/20
Filed: 2007-06-19
Abstract: 本発明は、モータ駆動式の閉鎖システムにおける挟み込みを防止する方法ならびに該方法を実施する装置に関する。
Patent JP-2010500080-A (JP)
IPC: A61B18/12
Filed: 2007-08-02
Abstract: Methods and systems are provided for monitoring and regulating radiofrequency (RF) ablation therapy to improve quality of ultrasound imaging. Feedback is provided from real-time ultrasound imaging, and RF power is altered in response to a feedback signal to improve image quality.
Patent JP-2010501970-A (JP)
Title: リチウムイオン電池の珪素・炭素複合陰極材料及びその製造方法
IPC: H01M4/02
Filed: 2007-01-12
Abstract: 【課題】本発明は、リチウムイオン電池の珪素・炭素複合陰極材料及びその製造方法を提供し、電池の比容量を高めることである。本発明の材料は、球形または球形近似の珪素形粒子、炭素形粒子の複合材料の基本体とし、その外側に被覆層を被覆する。 【手段】珪素形粒子を破砕し、それを炭素形粒子と混合して複合粒子を製造してから、有機物の熱分解グラファイトの前駆物と混合被覆し、炭化処理をしてから、破砕する。従来の技術に比べて、本発明の複合陰極材料は、珪素形粒子と炭素形粒子からなる複合材料の基本体とし、その外側に被覆層を有する構造をもっており、その可逆的容量は450mAh/gより大きく、第一回のサイクルクーロン効率は85%より大きく、200回のサイクル容量の保持率は80%より大きい。本発明は、リチウムの挿入・脱離時に生じた炭素を含む活性物質の体積効果を著しく減軽し、活性材料におけるリチウムの拡散行為を改善して、各種類の携帯式器具、電動工具などに使われている電池陰極材料に適している。