baber/WOPTO huggingface dataset:
Patent JP-2007503602-A (JP)
Title: 電気泳動ディスプレイパネルに対するグレイスケール生成方法
IPC: G09G3/20
Filed: 2004-08-10
Abstract: 画像を表示する電気泳動ディスプレイパネル（１）は、複数の画素（２）と駆動手段（１００）とを持つ。各画素（２）は、電位差を受ける２つの電極（３，４）と、電極（３，４）間の位置を占めることができる荷電粒子（６）とを持つ。駆動手段（１００）は、各画素（２）に対して電位差パルスのシーケンスを供給することができる。各シーケンスは、粒子（６）の位置を実質的に変更せずに、粒子（６）が電位差に応答する能力を変更する応答変更パルスと、画像を表示するために前記位置の１つに粒子（６）を移動する画像パルスとを持つ。フレーム期間が比較的大きく、前記画像パルスに対する電位差値の数が比較的少ない場合でさえも、ディスプレイパネル（１）が比較的高画質の画像を表示することができるためには、少なくともある数の画素（２）に関して、駆動手段（１００）は更に前記ある数の中の各画素（２）に対して前記応答変更パルスの終了の前に前記画像パルスの一部を供給することができる。
Patent JP-2007504768-A (JP)
Title: 電磁気的結合給電小型広帯域モノポールアンテナ
IPC: H01Q5/10
Filed: 2004-09-08
Abstract: 本発明は、長さが略λ ０ ／４（但し、λ ０ は自由空間での波長）であり、スパイラル形態、フォルデッド（folded）形態及び螺旋（helix）形態のうち、いずれか一つの形態を有するストリップ線路プローブ及びこれと短絡されたパッチとを電磁気的に結合した形態のモノポールアンテナを開示し、集中素子を用いたアンテナの等価モデルを提示する。ストリップ線路はスパイラル（spiral）形態、螺旋（helix）形態、そして具現されたフォルデッド（folded）形態の中の一つである。したがって、共振周波数のインダクタンスとキャパシタンスを調整することによって、共振周波数の調節が可能になり、アンテナの応用目的によってデュアル帯域アンテナと広い帯域幅の単一帯域アンテナに設計することができる。
Patent JP-2007501183-A (JP)
Title: チタニアと酸化ビスマスとを含んでなるミクロスフィア
IPC: C03C10/00
Filed: 2004-04-20
Abstract: 本発明は、少なくとも５０重量％のチタニアと、少なくとも５重量％の酸化ビスマスとを含んでなるミクロスフィア（すなわち、ビーズ）に関する。このガラスミクロスフィアは、ジルコニアをさらに含んでなる。また本発明は、かかるミクロスフィアを含んでなる再帰反射性物品、特に路面表示にも関する。
Patent JP-2007510569-A (JP)
Title: 自動車のホイールのホイールキャンバを変更するための装置
IPC: B62D17/00
Filed: 2004-08-25
Abstract: 本発明は、自動車のホイール（１）のホイールキャンバを変更するための装置であって、ホイール（１）が旋回軸受（４，５０）を介して旋回可能にホイールキャリヤ（５，５１）に支承されており、旋回軸受（４，５０）により画成される旋回平面が少なくともほぼホイール中心平面（Ｅ）に対して横方向で配置されている形式のものに関する。本発明により、旋回軸受（４，５０）の仮想の旋回点（Ｄ）の位置がホイール接地平面の上側に、かつホイール中心平面（Ｅ）の車両寄りの側にあるようにした。
Patent JP-2007511826-A (JP)
Title: ランダムバイナリシーケンスジェネレータ
IPC: H04L9/32
Filed: 2004-11-08
Abstract: 本発明は、ランダムバイナリ又はナンバーシーケンスの生成に関する。   本発明によれば、シーケンスは、指紋センサ（１０）及びアナログ／ディジタル変換器（１４）から作製される。ランダムバイナリシーケンスは、（低位ビットをランダムに切り換えるためのセンサからの信号の雑音レベルに十分に優れた解像度を有する）変換器からの低位ビットから作製される。前記センサは、好ましくは焦電検出素子のマトリクスを有する。ビットの順序は、再編成回路によってスクランブルされ、作製されたシーケンス内の０及び１ビットの分散のバランスをとるための手段（１８）が設けられる。 【選択図】      図１
Patent JP-2007514344-A (JP)
Title: 移動装置のためのサーバーエージェントを形成する方法、装置及びシステム
IPC: G06F17/30
Filed: 2004-11-10
Abstract: 本発明は、１つ以上のエージェントが、ネットワーク上の少なくとも１つのサーバーから情報を収集して、この情報をサーバーのインボックスへ自動的に与え、次いで、移動装置へのワイヤレス接続が使用できる場合には移動装置のインボックスへそれを与えることができるようにする。サーバーエージェントファシリティは、移動装置からの情報要求を前処理し、これは、バンドから情報を収集し、その収集した情報をフィルタリングし、そして移動装置に適したフォーマットで配送するように情報をパッケージングすることを含む。サーバーエージェントファシリティ内のサーバーエージェントは、時間、事象（１つ又は複数）、ユーザプロフィール、移動装置プロフィール、要求（１つ又は複数）、警告（１つ又は複数）、及び経歴的振舞いを含む（これらに限定されないが）種々のファクタに基づいて能動的に情報を収集することができる。 【選択図】図１
Patent JP-2007512077-A (JP)
Title: インフレーション・チューブを使用したステントの位置決め
IPC: A61F2/84
Filed: 2004-05-27
Abstract: 管腔内の場所での作業に適したカテーテルであって、前記カテーテルは、ａ）外シースと、ｂ）カテーテルが前記場所に到達したときに、前記管腔内で膨張可能なバルーンと、ｃ）前記バルーンに接続され、前記バルーンを膨張させる流体を運ぶバルーン・インフレーション・チューブと、からなり、前記バルーン・インフレーション・チューブは、外シースの中を挿通し、外シースに対して可動であり、かつ外シースに対してバルーンを押し込み又は引き戻すことに使用できる程度に十分に硬い、ことを特徴とするカテーテル。
Patent JP-2007516472-A (JP)
Title: ディスプレイのストライピング方向と平行な空間周波数ドミナンスを有するオブジェクトのサブコンポーネントベースのレンダリング
IPC: G09G5/02
Filed: 2004-07-30
Abstract: 各ピクセルごとのピクセルサブコンポーネントを含むディスプレイの一部分の上にオブジェクトをレンダリングするための機構である。ピクセルサブコンポーネントは、所定の方向（例えば、垂直方向または水平方向）に沿ってストライプされる。コンピューティングシステムは、オブジェクトがストライピング方向と偶然平行である方向に空間周波数ドミナンスを有すると判定する（４００）。次いで、コンピューティングシステムは、ストライピング方向が実際のストライピング方向に対して直角をなすと仮定して、サブコンポーネントベースのサンプリングを実行する（４２１）。次いで、オブジェクトがディスプレイ上にレンダリングされる（４２２）。これは、表示されることになる各オブジェクトごとに実行することができる。直感に反して、ストライピング方向がディスプレイの実際のストライピング方向と同じであると仮定してピクセルサブコンポーネントベースのサンプリングを実行することと比べて、これにより、表示されている文字の解像度が向上する。
Patent JP-2007514914-A (JP)
IPC: B60B27/00
Filed: 2004-12-06
Abstract: The Invention relates to an outer ring of a wheel bearing. Said outer ring comprises a hollow cylindrical section and a flange which protrudes radially outward from said hollow cylindrical section. The flange extends into the section at a concave groove.
Patent JP-2007518746-A (JP)
IPC: C23F11/167
Filed: 2005-01-24
Abstract: Bis-phosphonic acids (I), containing a lipid residue, and their physiologically acceptable derivatives, particularly salts and trimethylsilyl compounds, are new. Bis-phosphonic acids of formula (I), containing a lipid residue, and their physiologically acceptable derivatives, particularly salts and trimethylsilyl compounds are new (HO) 2P(O)-CR 1>(XR 2>)-P(O)(OH) 2 (I) R 1>hydrogen, hydroxy, 1-6C alkyl (optionally substituted by hydroxy, amino or halo) or alkoxy; X : direct bond, 1-20C alkylene, (Me) m-(OCR 3>HCH 2) n-(O) o-, (CHR 4>CH 2O) p or (Me) q-(OCR 5>H-CH 2) r-(O) s-(Me) t; R 3>, R 4> and R 5>hydrogen or Me; m and q : 0-6; p, n and r : 1-10, preferably 1-6; s, o : 0 or 1; t : 1-6; R 2>residue of formula (II) or an 8-22C fatty alkyl or fatty acid residue. Independent claims are also included for the following: (1) method for preparing (I) by reacting R 2>-X-COOH, or its reactive derivative, with a bis-phosphonic acid or tri(trimethylsilyl)phosphite, then recovering the product, directly or after hydrolysis to free acid; (2) liposomal composition comprising (I), phospholipid and/or uronic acid derivative; and (3) method for preparing the composition of (2). [Image] ACTIVITY : Cytostatic; Virucide; Antibacterial; Fungicide; Antiinflammatory; Osteopathic. No details of tests for these activities are given. MECHANISM OF ACTION : None given.
Patent JP-2007520954-A (JP)
Title: 超広帯域（ｕｗｂ）同期検索
IPC: H04B1/69
Filed: 2005-02-02
Abstract: 【課題】超広帯域（ＵＷＢ）同期検索 【解決手段】本発明は、例えば地中探知レーダ（ＧＰＲ）、及びワイヤレスパーソナルエリアネットワーキング（ＷＰＡＮ）などのレーダ、位置検出及び通信などの超広帯域（ＵＷＢ）用途に関する。本発明は、受信機を既知のホッピングコードを有する受信されたＵＷＢ信号に同調させるための装置を提供し、前記装置は、多くのタイムスロットの中で前記信号のパラメータを決定するための手段と、各タイムスロットに関連付けられる前記パラメータを時間オフセットアキュムレータとコードオフセットアキュムレータの多くの対応するもの（ｃｏｒｒｅｓｐｏｎｄｉｎｇ）に追加するための手段と、前記受信機を同期させるために必要とされる前記コードオフセット及び時間オフセットとして、所定のアキュムレータ測定基準に従って蓄積された値を有する前記コードオフセットアキュムレータ及び時間オフセットアキュムレータを決定するための手段とを備える。 【選択図】なし
Patent JP-2007518897-A (JP)
Title: 製紙プロセス
IPC: D21H17/37
Filed: 2005-01-21
Abstract: 紙または板紙を製造する方法を記載する。好ましい１つの方法は、製紙用パルプに、合成層状ケイ酸塩、ペプタイザおよび少なくとも１種のポリマーを添加することによって処理されたパルプを形成することを含む。合成層状ケイ酸塩は、合成含水ケイ酸ナトリウムリチウムマグネシウムを含むのが好ましく、該ポリマーは、カチオン性、非イオン性および両性ポリマーから選択される。ペプタイザは、好ましくは無機ポリリン酸塩ペプタイザであり、ある市販の合成層状ケイ酸塩製品中に含まれている。驚くべきことに、本発明者は、ペプタイザによって排水性、歩留まりおよび濁度が著しく改善され、それによって製紙プロセスおよび紙または板紙製品が改良されることを発見した。
Patent JP-2008163720-A (JP)
Title: Draining material used for improvement method of soft ground such as landfill
Inventor: AMIHOSHI TOSHIO
IPC: E02D3/10
Filed: 2007-01-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a fiber draining material which promotes subsidence of a soft ground by draining water content of the clay layer of the soft ground by a vertically arranged drain, which can stabilize the ground at an early stage by the ground subsidence by shortening the time without collapse or fracture, and which corrods naturally and does not harm environment.  <P>SOLUTION: The fiber draining material 1 consists of an outer covering material 2 and a filler 3 of a core material. The outer covering material 2 is made of jute fiber woven cloth or non-woven fabric having permeability, and the filler 3 is made of a skin short length fiber of a shell of a coconut. The core material of the filler 3 is made of a short length fiber which is in a disentangled state, and the filler 3 is attached to the pervious outer covering material 2 made of the jute fiber woven cloth or non-woven fabric. The outer covering material 2 and the core material of the filler 3 attached to the inside of the outer covering material 2 are sewn and integrated together by a thread 5 of natural fiber such as a cotton thread in a plurality of positions of the outer covering material 2. Thus, the outer covering material 2 and the core material are made an extra-long fiber draining material 1.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2007228560-A (JP)
Title: Moving picture coding method and moving picture coding device
Inventor: KUDO SHINTARO
IPC: H04N19/50
Filed: 2007-01-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide a moving picture which can prevent image quality deterioration due to deterioration in motion vector prediction accuracy in temporal direct mode coding, and can compress moving images with efficiency.  <P>SOLUTION: The moving picture coding device includes a temporal direct mode processing unit that is operable for predicting and generating a motion vector for a target block, by referencing a motion vector of a coded picture that is temporally nearby, as a direct mode processing for a B picture, a spatial direct mode processing unit that is operable for predicting and generating a motion vector for a target block by referencing a motion vector of a coded block that is spatially located near the target block, and a temporal direct mode disabling assessment unit that is operable for assessing whether use of the temporal direct mode should be inhibited, according to the conditions of the target to be coded. Direct mode coding is performed on the target to be coded by using only the spatial direct mode processing unit, when use of the temporal direct mode is inhibited by the assessment unit.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2007166649-A (JP)
Title: Disconnection in double-layer communication network
Inventor: HURTTA TUIJA
IPC: H04W76/06
Filed: 2007-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for connection or partial disconnection in a double-layer communication network.  <P>SOLUTION: The present invention relates to a method for at least partial disconnection in a double-layer communication network comprising a first communication network layer for establishing a communication channel to a terminal and a second communication network layer for establishing the connection of an application layer. The disclosed method includes the steps of judging that a connection related to the terminal is to be at least partially canceled in one of the first and the second communication network layers, and transferring the judgement from one communication network layer wherein that judgement is made, through an interface between the first and the second communication network layers to the other communication network layer. Therefore, each of the communication network layers is enabled to know that the connection is to be canceled, and to initiate any suitable means so as not to waste network capacity for a connection call that is not active any more.  <P>COPYRIGHT: (C)2007,JPO&INPIT
Patent JP-2008045536-A (JP)
Title: Fuel supply system for dme engine
Inventor: MOROI TAKAHIRO
IPC: F02M37/00
Filed: 2007-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a fuel supply system for a DME engine capable of improving mounting property to a vehicle without using a purge tank and a re-liquefaction compressor while preventing DME fuel from leaking into a combustion chamber when an engine is stopped.  <P>SOLUTION: A low-pressure fuel supply passage 4 at an upper stream side of a high pressure supply pump 7, a first high pressure fuel supply passage 8, a common rail 9 and a second high pressure fuel supply passage 10 at a downstream side are connected via a merge passage 12g, a first branch passage 12a and a second branch passage 12b. The passages 12g, 12a, 12b are respectively provided with solenoid open/close valves 15, 13, 14. When the engine is stopped, the solenoid open/close valves 13 to 15 open and a feed pump 3 is rotated in a reverse direction, thereby the DME fuel remaining in the low-pressure fuel supply passage 4 is directly recovered into the fuel tank 2 and the DME fuel remaining in the high-pressure fuel supply passage is recovered into the fuel tank 2 via the merge passage 12g, the first branch passage 12a and the second branch passage 12b.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008168530-A (JP)
Title: Clocking device for fluid ejection device, and fluid ejection device
Inventor: HIRASAWA YUSUKE
IPC: B41J2/01
Filed: 2007-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a clocking device for a fluid ejection device, which can correctly count up time even if the clocking device undergoes a non-electrified state over a period, and to provide the fluid ejection device.  <P>SOLUTION: The clocking device in an ink-jet printer comprises a recording head 19 having nozzles 22 for ejecting ink, and a second waste ink recovery section 37 for recovering waste ink discharged from the recording head 19. The clocking device includes: a waste ink storage section 41 for temporarily storing therein the waste ink discharged from the recording head 19; a communication hole 42 communicating between the waste ink storage section 41 and the second waste ink recovery section 37, for flowing out the waste ink stored in the waste ink storage section 41 into the second waste ink recovery section 37 with time; and a control device for counting up a time, based on an amount of the waste ink flowed from the waste ink storage section 41 into the second waste ink recovery section 37 via the communication hole 42.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008172090-A (JP)
Title: Package for semiconductor device and semiconductor device
Inventor: OKOCHI NAOKI
IPC: H01L25/04
Filed: 2007-01-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a package for a semiconductor device, the device suppressing temperature rise of the semiconductor device with high heat generation rate.  <P>SOLUTION: An image sensor 1 is mounted on a substrate 31 of the package 3 for the semiconductor device with die-bonding resin 2. A heat transfer member 4 is embedded in the substrate 31 to absorb heat generated in the image sensor 1 and discharge it outside of the substrate 31.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008177003-A (JP)
Title: Fuel cell system
Inventor: ARAKI YASUSHI
IPC: H01M8/04
Filed: 2007-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a fuel cell system making humidification of a cell unnecessary to a limit to be able to shortly recover a drop in power generation performance of the cell.  <P>SOLUTION: The fuel cell system 100 is equipped with a polymer electrolyte fuel cell 30, a resistance sensor 32 detecting cell resistance of the fuel cell, a dew-point sensor 40 detecting a dew point of anode off-gas from the fuel cell, and a drying preventing means 50 performing drying preventing treatment of the fuel cell according to the relation between the cell resistance and the dew point. The limit to be able to shortly recover drop in power generation performance of the cell can be found based on the relation between the cell resistance and the dew point.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008178307-A (JP)
Title: Raising seedling/cultivation method through quantitative water supply
Inventor: NISHIURA YOSHIJI
IPC: A01G27/00
Filed: 2007-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide a raising seedling/cultivation method through quantitative water supply comprising setting the amount of residual water after water supply with submerged water into a prescribed amount regardless of change in properties such as absorption of culture media and water retention so as to prevent spindly growth of plant bodies caused by an excessive amount of supplied water to obtain equalized nature and growth of the plant bodies.  <P>SOLUTION: The raising seedling/cultivation method through quantitative water supply comprises making a water-supply container 3 housing a pot 1 in which a plant body B is planted so as to be taken in and out, have a prescribed capacity, putting a prescribed amount of water-supply liquid C in the water-supply container 3, inserting the seedling-planted pot 1 in the water-supply container 3, discharging surplus water-supply liquid C through soaking the pot 1 in the prescribed amount of the water-supply liquid C, and supplying the remaining amount of water-supply liquid to the plant bodies so as to equalize the growth of the plant body B.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008179000-A (JP)
Title: Writing utensil
Inventor: FURUKAWA KAZUHIKO
IPC: B43K7/12
Filed: 2007-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide a writing utensil with which a buffering action can be realized without disturbing normal movements by incorporating a damping space hermetically sealed from outside in a writing utensil equipped with a push-button mechanism.  <P>SOLUTION: In the writing utensil 10 equipped with a push-button mechanism, with which a writing tip 11 can be extended through its extending operation, the writing utensil 10 is equipped with a holding part 12 holding with the writing tip 11, a barrel 20 containing the holding part 12 therewithin, a push-button part 30 covering the rear end portion of the barrel 20 and an extending part 13 for thrusting the holding part 12 towards its tip in interlocking with the extending operation of the push-button part 30 under the condition that the damping space 40, which is hermetically sealed from outside and its volume of which changes by its extending operation of the push-button part 30, is provided between the push-button part 30 and the barrel 20.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008181731-A (JP)
Title: Fuel cell device and electronic device
Inventor: NAKAMURA OSAMU
IPC: H01M8/24
Filed: 2007-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To maintain a fuel battery cell housed in a heat insulation container at an appropriate operation temperature.  <P>SOLUTION: The fuel cell device is provided with a fuel battery cell 8 to take out electric power by electrochemical reaction of fuel, a heat exchanger 22 to heat a fluid used in the fuel battery cell 8 by the heat of the fuel battery cell 8, and a heat insulation container 20 to house the fuel battery cell 8 and the heat exchanger 22. Since the excess heat generated in the fuel battery cell is used to heat the fluid by the heat exchanger 22, it can be prevented that the temperature of the fuel battery cell increases to an appropriate operation temperature or more, and the fuel battery cell 8 housed in the heat insulation container 20 can be maintained at an appropriate operation temperature.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2007257818-A (JP)
Title: Method for manufacturing information recording medium
Inventor: ITO KUNIYASU
IPC: G11B5/84
Filed: 2007-01-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a recording medium which can improve throughput of manufacturing.  <P>SOLUTION: Information recording medium is manufactured by carrying out resin layer forming processing (coated layer forming processing) to form a resin layer 17 (coated layer) by coating resin material (fluid material) on an irregular pattern 15 forming face (surface of protection layer 16) with an irregular pattern formed on a processing object 10 (substrate), and flattening processing to flatten the surface of the processing object 10 by rubbing the resin layer 17 with a varnishing tape 31 (flattening member) of a varnish apparatus 30.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008183914-A (JP)
Title: Navigation system
Inventor: SATO SHIGEHIRO
IPC: B61L25/02
Filed: 2007-01-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a navigation system capable of acquiring the optimum path and the optimum arrival time of a train by specifying the train with a user being onboard based on information of the present position of the user.  <P>SOLUTION: The navigation system comprises a user position grasping means for grasping the present position of the user onboard the train based on GPS information from a first terminal carried by the user, a train position grasping means for grasping the present position of a second terminal based on GPS information from the second terminal mounted on the train, and an operational situation grasping means which acquires the operational situation of the train from the outside and stores and controls it in a file. The train with the user being onboard now is specified from the present position of the first terminal grasped by the user position grasping means and the present position of the second terminal grasped by the train position grasping means, and the path and the required time to a target station are automatically calculated based on the latest information on the train acquired by the operational situation grasping means.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008187293-A (JP)
Title: Radio communication system for automobile and radio equipment for automobile
Inventor: HAYASHI YOSHIAKI
IPC: H04B7/26
Filed: 2007-01-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a radio communication system for automobile and radio equipment for automobile, that can receive and detect a radio wave while automatically avoiding an influence of a disturbing radio wave.  <P>SOLUTION: The radio equipment 1 for automobile which selectively receives and detects a first radio wave and a second radio wave differing in frequency includes a detecting circuit 21 which detects a base band signal from signals of the received first radio wave and second radio wave, a success decision means of deciding whether the detection by the detecting circuit 21 is successful, a reception history information storage device which stores a history of decision results of the success decision means, a specifying means of specifying a radio wave having high probability of success in detection based upon the reception history information stored in the reception history information storage device, and a switching means of switching a radio wave to be received so as to receive the first radio wave when the specifying means specifies the first radio wave or the second radio wave when the specifying means specifies the second radio wave.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008186936-A (JP)
Title: Field effect transistor
Inventor: ANDO YUJI
IPC: H01L29/778
Filed: 2007-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a field effect transistor (FET), chief of which is diamond, which can accommodate high-frequency operation and an increase in current density and has an excellent controllability for threshold voltage, and has little variation in element characteristics in the plane of a wafer and little variation among lots.  <P>SOLUTION: In the field effect transistor wherein a substrate 10, a diamond semiconductor layer 11, and a compound semiconductor layer 12 are formed in this order, the diamond semiconductor layer 11 is formed of (111)-plane diamond and the compound semiconductor layer 12 is formed of a (0001)-plane hexagonal compound semiconductor or (111)-plane hexagonal compound semiconductor. Due to this structure, there are positive fixed electric charges arising out of the spontaneous polarization effect or piezo polarization effect in the interface between an electron supply layer and the diamond semiconductor layer, and at the same time, a two-dimensional electron gas 13 is generated near the interface between the electron supply layer and the diamond semiconductor layer.  <P>COPYRIGHT: (C)2008,JPO&INPIT
Patent JP-2008184038-A (JP)
Title: Pneumatic tire
Inventor: NAKAMATA TSUNETAKA
IPC: B60C11/13
Filed: 2007-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To reduce the rolling resistance of a tire, and to maintain traction performance after middle stage of abrasion.  <P>SOLUTION: In the pneumatic tire, a plurality of main grooves 1 extending in a tire circumferential direction is provided on a tread, and two sub-grooves 2 extending in the tire circumferential direction are provided at an area clamped by the adjacent main grooves 1. A thin rib 3 is formed by the sub-grooves 2, and a slit 4 for communicating the main groove 1 with the sub-groove 2 is provided. Rows of blocks 5 formed by the main groove 1, the sub-groove 2 and the slit 4 are arranged at both sides of the thin rib 3. Depth of the sub-groove 2 is 10-60% of depth of the main groove 1, and width of the sub-groove 2 is 0.5-3.0 mm. Width of the thin rib 3 is 4-12% of ground-contact end width W.  <P>COPYRIGHT: (C)2008,JPO&INPIT