baber/WOPTO huggingface dataset:
Patent JP-2002513729-A (JP)
Title: 光ファイバの製造方法
IPC: C03B37/012
Filed: 1999-04-28
Abstract: (57)【要約】
異なるガラス片(81,82)が互いに融着されて、特性が軸方向に変動するガラスファイバがそこから線引きされるプリフォーム(94)を形成する。
Patent JP-2002516258-A (JP)
Title: 増殖細胞処理用アンチセンスオリゴヌクレオチド相乗的殺虫剤混合物
IPC: A01N43/22
Filed: 1999-05-17
Abstract: (57)【要約】
本発明は、作物を有害生物の外寄生から保護するためのニコチナージェニックアセチルコリン受容体の作用薬もしくは拮抗薬とスピノシンで構成させた殺虫剤混合物に関する。
Patent JP-2002521387-A (JP)
Title: 共重合体１および関連する共重合体ならびにペプチドによる自己免疫疾患の治療
IPC: A61P17/06
Filed: 1999-07-23
Abstract: (57)【要約】
本発明は直線配列でランダム結合した、少なくとも３種のアミノ酸を含むポリペプチドおよびペプチドであって、３種のアミノ酸のうち少なくとも１種は芳香族アミノ酸であり、３種のアミノ酸のうち少なくとも１種は荷電アミノ酸であり、かつ少なくとも１種は脂肪族アミノ酸であるポリペプチドおよびペプチドに向けられている。好ましい態様において、ポリペプチドは以下のアミノ酸：チロシン、アラニン、グルタミン酸またはリジンのうち３〜４種のアミノ酸を含んでいる。本発明に従って、本ポリペプチドは抗原提示細胞、精製したヒトリンパ球抗原（ＨＬＡ）および／または共重合体１特異的Ｔ細胞と結合する。さらに本発明に従って、これらのポリペプチドを自己免疫疾患を治療するための医薬組成物へと処方することができる。本発明はさらに、哺乳類における自己免疫疾患を治療する方法であって、治療上有効な量の本ポリペプチドまたはペプチドのいずれか１種を哺乳類に投与することによる方法を意図する。
Patent JP-2002526650-A (JP)
IPC: B22F3/02
Filed: 1999-09-17
Abstract: The present invention concerns a process of preparing high density, warm compacted bodies of a stainless steel powder comprising the steps of providing a mixture of a low carbon, low oxygen stainless steel powder including 10-30% by weight of Cr, optional alloying elements and graphite and inevitable impurities, mixing the powder with a high temperature lubricant and compacting the mixture at an elevated temperature. The invention also concerns a composition of the stainless steel powder, optional additional alloying elements and a high temperature lubricant.
Patent JP-2002526574-A (JP)
Title: 重合反応中の非常に速い開始剤の連続的配量
IPC: A01G9/02
Filed: 1999-09-10
Abstract: (57)【要約】
本発明は、パーオキサイドが重合混合物に配量される方法に関し、ここで、重合プロセスで使用される有機パーオキサイドの本質的に全てが重合温度で０．０５〜１．０時間の半減期を有する。かかるパーオキサイドの配量は、重合速度の正確な制御を可能にし、該方法は、低い残留パーオキサイドレベルを有するポリマーを与える。
Patent JP-2002530729-A (JP)
Title: 集積回路テスタを制御する命令処理パターン発生器
IPC: G06F12/02
Filed: 1999-10-25
Abstract: (57)【要約】
集積回路テスタ用のパターン発生器（２３）は、アドレス可能な命令（ＩＮＳＴ）を記憶して、入力として供給されたアドレス（ＡＤＤＲ）によってアドレス指定されたときにそれぞれの命令を読み出す命令メモリ（２２）を有する。命令プロセッサ（２０）は命令メモリ（２２）から読み出されたそれぞれの命令を受け取り、そして、命令メモリ（２２）へのアドレス入力をその受け取った命令に従って変更し、命令メモリ（２２）は次の命令を読み出すようにする。従来の復帰アドレススタックを有する命令プロセッサ（２０）は、従来のアドレスインクリメントと呼び出しと復帰の各命令を実行することができる。命令プロセッサ（２０）は、また、そのカレントアドレス出力をインクリメントして新たな復帰アドレスを生成し、そのアドレス出力をスタックに以前格納されていた復帰アドレスの値に設定し、スタックから格納されていた復帰アドレスをポップし、そして、そのスタックに新たな復帰アドレスをプッシュすることによって、一時復帰命令（ＴＥＭＰ）を実行することもできる。一時復帰命令は、命令プログラムフローが、メインプログラムと呼び出されたサブルーティンの間でいったりきたり移動することを可能にする。
Patent JP-2002531314-A (JP)
Title: 航空機に装備可能なプローブ組立体
IPC: B64D39/04
Filed: 1999-11-29
Abstract: (57)【要約】
例えば燃料補給用の展開可能プローブ組立体が、それぞれ内側及び外側球面状支持装置（２８、３０）から成る柔軟な装着によって、支えられた近位管部分（１８）を備える。外側装置（３０）はまた近位管部分（１８）に限定された摺動運動をさせる。飛行中に支持機体が撓んだり動いたりしたとき、近位管（１８）が負荷を受けるのを防止するため柔軟な装着を設計した。
Patent JP-2002533455-A (JP)
IPC: C07D417/14
Filed: 1999-12-22
Abstract: Novel compounds and pharmaceutical compositions are disclosed which are inhibitors of the enzyme, farnesyl-protein transferase. Also disclosed is a method of inhibiting Ras function and therefore inhibiting the abnormal growth of cells. The method comprises administering the novel aminooxyamide compound to a biological system. In particular, the method inhibits the abnormal growth of cells in a mammal such as a human.
Patent JP-2003508795-A (JP)
Title: 反射及び波長選択光学クロスコネクトにおけるラインを備えたａｄｍ
IPC: H04B10/29
Filed: 1999-12-17
Abstract: (57)【要約】
【課題】  ダブルパッセージ音響光学アッド／ドロップマルチプレクサの新規な音響光学スイッチを提供する。
【課題を解決する手段】  音響光学アッド／ドロップマルチプレクサは、音響光学スイッチを含み、該スイッチは、第１の偏光スプリッタに連結された第１の光学ポート、該第１の偏光スプリッタ及び第２の偏光スプリッタの間に連結された少なくとも１つの偏光変換装置及び第２の偏光スプリッタに連結された第２及び第３の光学ポートを含む。第１のサーキュレータは、第１の光学ポートに連結され、ミラーは、第２の光学ポートに連結され、且つ、第２のサーキュレータは、第３の光学ポートに連結される。波長選択光学クロスコネクトは２つの斯かる音響光学アッド／ドロップマルチプレクサを単一の光学ファイバによりそれぞれの第３の光学ポートに連結することで実現することが可能である。
Patent JP-2002534866-A (JP)
Title: 画像感知装置
IPC: H04N9/07
Filed: 1999-12-16
Abstract: (57)【要約】
本発明はビデオ画像感知装置のフィルタ構造を開示している。このフィルタ構造は赤色カラー・フィルタおよび青色カラー・フィルタからなり、これらを非カラー又は孔あき窓センサ、つまり灰色センサとともに感知ブロックの中に配置する。
Patent JP-2002534880-A (JP)
Title: 回線網の自己記述拡張リンク・サービス
IPC: H04L12/56
Filed: 1999-12-22
Abstract: (57)【要約】
第１のポート装置（１０７）と第２のポート装置（１０９）を有するコンピュータ・ネットワークのリンク・レベル・サービスを実施する方法である。ノード識別情報が第２のポート装置（１０９）に記憶されている。第１のポート装置（１０７）と第２のポート装置（１０９）の間に物理層通信結合が供給され、これはポイント・ツー・ポイント接続、ループ接続またはスイッチ回路接続である。第１のポート装置（１０７）は、第２のポート装置（１０９）に宛てた要求ノード識別（ＲＮＩＤ）メッセージを送る。第２のポート装置（１０９）は、受理メッセージを生成して、記憶されたノード識別データをこの受理メッセージにコピーする。第２のポート装置（１０９）は、第１のポート装置（１０７）に受理メッセージを送信する。
Patent JP-2002535201-A (JP)
Title: 自動車のステアリングホイール
IPC: B62D1/04
Filed: 2000-01-26
Abstract: (57)【要約】
自動車用のステアリングホイールは、ハブと、ステアリングホイールリムと、ステアリングホイールリムをハブと接続する複数のスポークとを備えている。該ハブは、ステアリング軸に締結するハブコアと、ハブコアを取り巻く、繊維強化プラスチック材料で出来た基部本体とを備えている。スポークが繊維強化プラスチック材料にてハブの基部本体と一体に且つ連続的に成形される。ステアリングホイールリムが繊維強化プラスチック材料によりスポークと一体に且つ連続的に成形される。この構成において、基部本体は、スポーク及びステアリングホイールリムと共に、自己支持型の所定形状本体を形成する。
Patent JP-2002537609-A (JP)
Title: 切り離し可能なミニスマートカードをもつ携帯型データ記憶媒体
IPC: G06K19/077
Filed: 2000-02-16
Abstract: (57)【要約】
携帯型データ記憶媒体(１)において、カード本体(１)にはめ込まれた切り離し可能なミニスマートカード(２)をもつ携帯型データ記憶媒体(１)。ミニスマートカード(２)はミニスマートカードの実質的部分の周りに伸びるフリーパンチ(３)によりカード本体(１)から分離される。ミニスマートカード(２)は、ミニスマートカードの切離し方向とは異なる切離し方向を有する別の定格切断線(５)を含む。
Patent JP-2003517457-A (JP)
Title: 冠状動脈疾患の診断のための脂肪酸類似体
IPC: C07F13/00
Filed: 2000-04-14
Abstract: (57)【要約】
下記の化学式、
 ＲがＨまたはＭｅを表し、Ｘが−ＣＨ ２ −または−ＣＨ＝を表し、Ｙが−ＣＨ（Ｒ）−または−Ｃ（Ｒ）＝を表し、Ｚが、ＣＨ ３ −またはＣＨ ２ ＝を表し、Ｍが、１つの放射性同位体を表し、かつｍ＋ｎの合計が０から１５の値域内にある脂肪酸類似体からなる、心筋において高水準の取込みおよび保持を呈する放射性撮像剤。
Patent JP-2002541861-A (JP)
Title: ｍＲＮＡキャップ形成の薬理学的ターゲティング
IPC: C12N15/81
Filed: 1999-11-09
Abstract: (57)【要約】
本発明は、真核生物遺伝子発現の必須側面−ｍＲＮＡ５’キャップm7GpppNの形成−を標的とする分子を発見するための方法を提供する。本発明の基本的原理は、必須のキャッピング酵素の組成または起源においてのみ異なる試験生物の異なる菌株を用いることである。さらに、本発明は、それらの全てのキャッピング活性が病原菌または哺乳類に由来するような同遺伝子型酵母菌株を提供する。それら菌株は、真菌キャッピング機構を特異的に標的とする分子を同定するための差別的成長阻害測定法の基礎を形成する。また、本発明は、キャップ合成における３つの工程の最初の工程を触媒する必須酵素である真菌RNAトリホスファターゼを阻害する分子をin vitroでスクリーニングするための方法を提供する。
Patent JP-2002541986-A (JP)
IPC: A61M60/824
Filed: 2000-04-20
Abstract: A pump assembly (1, 33, 200) adapted for continuous flow pumping of blood. In a particular form the pump (1, 200) is a centrifugal pump wherein the impeller (100, 204) is entirely sealed within the pump housing (2, 201) and is exclusively hydrodynamically suspended therein as the impeller rotates within the fluid (105) urged by electromagnetic means external to the pump cavity (106, 203). Hydrodynamic suspension is assisted by the impeller (100, 204) having deformities therein such as blades (8) with surfaces tapered from the leading edges (102, 223) to the trailing edges (103, 224) of bottom and top surfaces (221, 222) thereof. Also disclosed is an estimation and control system for the pump assembly (1, 33, 200). <IMAGE>
Patent JP-2001224918-A (JP)
Title: Adjusting and equilibrating system for low pressure ratio vpsa plant
Inventor: NEU BERNARD THOMAS
IPC: B01D53/047
Filed: 2001-01-05
Abstract: PROBLEM TO BE SOLVED: To provide a method for keeping vessel pressure at a value a little lower than the pressure for optimizing and also attaining maximum production volume or at a prescribed value by adjusting the time for adsorption/desorption stage and vessel reflux time based on an observed pressure and purity. SOLUTION: In a pressure swing adsorption method, almost constant cycle pressure ratio is kept together with the equilibration of discharge flow of an adsorption vessel. The pressure ratio of cycle is monitored and cycle stage time and flow are changed successively so as to keep the value, and plant performance is maximized and unnecessary shut-down is avoided by such a way. Since almost constant pressure ratio is kept, plant production is optimized and power consumption is minimized. The equilibration of the discharge flow of the adsorption vessel using corresponding waste purity is used for moreover improving the plant production volume.
Patent JP-2002207838-A (JP)
Title: Personal authentication service method using portable telephone
Inventor: HONDA TADASHI
IPC: G06Q50/10
Filed: 2001-01-09
Abstract: PROBLEM TO BE SOLVED: To provide a service method to enable an optional person to perform personal authentication at any time and any place by using a portable telephone. SOLUTION: The opposite party is made to confirm that he/she is a user of the portable telephone by steps (S1, S2) to previously read and register at least one document to certificate a name, an address and the data of birth of an individual who uses the portable telephone in a server together with a facial portrait of the individual user of the portable telephone, by calling the registration contents in the server from the portable telephone (S11, S12), displaying the facial portrait and the document on a display part of the portable telephone (S13) and presenting them to the opposite party (S14) when necessity for the user of the portable telephone to perform the personal authentication to the opposite party occurs.
Patent JP-2002210952-A (JP)
Title: Ink jet head
Inventor: MIYOSHI YASUO
IPC: B41J2/045
Filed: 2001-01-12
Abstract: PROBLEM TO BE SOLVED: To provide an ink jet head which is compact and exerts a good ink discharge performance by forming a discrete electrode opposite to a diaphragm to 0.8-0.5 times as wide as the diaphragm and deforming the diaphragm by a low voltage appropriately. SOLUTION: A sealed actuator 14 of the ink jet head 1 has the diaphragm 6 set to a part of each liquid chamber 8 to which ink is supplied through a liquid resistor 9 from a common ink channel 10, and the discrete electrode 4 arranged opposite via a predetermined gap to each diaphragm 6. The discrete electrode 4 is formed to 0.8a-0.5a times as wide as the width (a) in a short side direction of the diaphragm 6. Therefore, the volume of the actuator 14 is increased at a part immediately below the diaphragm 6, thereby suppressing a pressure rise generated inside the actuator 14 when the diaphragm 6 is deformed towards the discrete electrode 4. The diaphragm 6 is deformed stably by the low voltage, so that a stable performance for discharging ink drops is realized. High-speed recording is thus enabled, and at the same time, the image quality of recording images can be improved.
Patent JP-2002212577-A (JP)
Title: Rust preventive oil for refrigerator part and method for rustproofing refrigerator part
Inventor: TAKIGAWA KATSUYA
IPC: C10M137/08
Filed: 2001-01-12
Abstract: PROBLEM TO BE SOLVED: To provide a rust preventive oil for refrigerator parts exhibiting sufficiently high rust preventing performances to metallic refrigerator parts and capable of sufficiently preventing an expansion mechanism, etc., from being blocked even when contaminated into a refrigerating system and a method for rustproofing the refrigerating machine parts using the rust preventive oil. SOLUTION: This rust preventive oil for refrigerator parts is characterized by comprising an alkylbenzene.
Patent JP-2002216577-A (JP)
Title: Keyboard
Inventor: WATANABE KAZUTOSHI
IPC: H01H13/14
Filed: 2001-01-15
Abstract: PROBLEM TO BE SOLVED: To provide a keyboard, which can be made thinner when a pair of lever is made of thin, elastic metal plates and the end of them are fitted to a key top and a board. SOLUTION: The keyboard comprises a ceiling held to the board 7 in an up-and-down-free manner via first and second energizing members 2, 4, and a sheet 5 having a contact consisting of first and second fixed contacts 5a and 5b placed on the board 7 for switching the contacts in response to the up-and-down move of the ceiling 1, wherein the first and second energizing members are made of the elastic metal plates so that an upward, elastic force is applied to the ceiling. Pushing down the ceiling 1 in the elevated position toward the board 7 makes the second energizing member 4 push down a dome- shaped metallic contact 6, subsequently rendering both the first and second fixed contacts 5a and 5b conductive via the metallic contact 6, so that the switching of the contacts at the contact part is carried out.  Since the first and second energizing members 2, 4 are made of thin metallic plates, the keyboard with the above constitution can be made thinner.
Patent JP-2002217382-A (JP)
Title: Magnetic memory and method for manufacturing the same
Inventor: MICHIJIMA MASASHI
IPC: H01F10/26
Filed: 2001-01-18
Abstract: PROBLEM TO BE SOLVED: To provide a magnetic memory in which a magnetization state recorded in a memory layer exists stably even when its density is increased and which is composed of a plurality of magnetic memory elements of a small power consumption, and to provide a method for manufacturing the magnetic memory. SOLUTION: The method for manufacturing the magnetic memory is provided with a process wherein a first ferromagnetic layer 11 with uniaxial-anisotropy in-plane magnetization is formed, a word line 12 which is connected to other magnetic memory elements adjacent in a direction at right angles to the magnetization direction of the layer 11 and which makes a current flow is formed, an insulating layer 19 which fills a part between the word line 12 and each magnetic memory element 1 is formed, and a second conductor layer 13 to be used as a lower-part electrode is formed, and a process wherein a storage part 24 which is constituted of a ferromagnetic layer with uniaxial-anisotropy in-plane magnetization in the same direction as the layer 11,  and an insulating layer is formed and a bit line 18 which is an upper-part electrode which is connected to the other magnetic memory elements adjacent in a direction parallel to the magnetization direction of the first layer 11 and which makes a current flow is formed.
Patent JP-2002213614-A (JP)
Title: Method of predicting and evaluating seal performance of cylinder head gasket
Inventor: ISHIZUKA MASAO
IPC: G01M3/36
Filed: 2001-01-19
Abstract: PROBLEM TO BE SOLVED: To provide a method of predicting/evaluating sealing performance of a cylinder head gasket which can predict and evaluate the sealing performance in a short time. SOLUTION: Amplitude around a bore of a block in this gasket 1, particularly in the location between tightening bolts of the block and a cylinder head positioned in the vicinity of the center of the block in the exhaust side of combustion gas is respectively measured under a prescribed load pattern, including a maximum horsepower point, with the lapse of time being 10 minutes in the first time, with the lapse of time of 10 hours in the second time, and with the lapse of time of 100 hours in the third time from starting of engine operation, of transition curves a, b, c obtained by measurement, for instance, as shown in curve a, although a measured value in the second time is slightly increased related to a measured value of the first time, a measured value in the third time is stable almost equal to the measured value of the second time, as for one showing such transition,  no generation of problems in sealing performance, that is, leakage of combustion gas is predicted and evaluated in the engine operation hereafter.
Patent JP-2002211001-A (JP)
Title: Ink jet recorder
Inventor: SHIKAME YUJI
IPC: B41J2/01
Filed: 2001-01-19
Abstract: PROBLEM TO BE SOLVED: To provide an ink jet recorder in which running cost can be lowered by using up ink as much as possible and a risk generation point can be lowered as much as possible even if a user selects to use up ink until it is not ejected. SOLUTION: The ink jet recorder comprises a recording head 1 ejecting ink to a recording medium, and an ink tank (ink containing/supplying means) 30 for holding ink in an ink absorber 33 of porous member and supplying ink to the recording head 1 at the time of recording wherein the quantity of ink being ejected per unit time from the recording head 1 is controlled depending on the residual quantity of ink in the ink tank 30.
Patent JP-2002215682-A (JP)
Title: Three-dimensional cad system
Inventor: KANO SHINYA
IPC: G06F17/50
Filed: 2001-01-19
Abstract: PROBLEM TO BE SOLVED: To shorten a lead time by allowing the integration of a three- dimensional model prepared by going ahead with work side by side in a design department and a manufacturing department. SOLUTION: A manufacture shape addition flag is given to the identification ID (No.16 and 17) of parts added to a copied three-dimensional model 30A in the manufacturing department after copying the three-dimensional model 30 prepared in the design department. Consequently, when the three-dimensional models of the design department and manufacturing department are compared and the identification ID is the same (No.16 and 17), if the manufacture shape addition flag is given to the identification ID, it can be determined that they are the parts added in both the design department and manufacturing department,  and the identification ID can be changed on the basis of the determined result so that the identification ID differs (the identification ID No.16 and 17 of the parts added in the manufacturing department are changed to No.19 and 20 so as to be different from the identification ID No.16, 17 and 18 of the parts added in the design department).
Patent JP-2002217076-A (JP)
Title: Method for managing production in multichamber device
Inventor: YAMAGUCHI SHINGO
IPC: G05B19/418
Filed: 2001-01-22
Abstract: PROBLEM TO BE SOLVED: To shorten the lead time of product, in multichamber device, by synchronizing the date of maintenance thereby increasing the number of products being processed. SOLUTION: Initially scheduled date of processing product and the date of maintenance are extracted for each of a plurality of chambers (S101). The scheduled data of other chamber for starting maintenance is adjusted to synchronize with that of a chamber among the plurality of chambers reaching the date of maintenance first (S102). Subsequently, the date of processing product is adjusted for each chamber based on the adjusted date of maintenance of each chamber (S103). Finally, the adjusted date of processing product and the date of maintenance are designated to the plurality of chambers (S104).
Patent JP-2002212563-A (JP)
Title: Liquid crystal composition and liquid crystal display element
Inventor: SUDO TAKESHI
IPC: C09K19/18
Filed: 2001-01-23
Abstract: PROBLEM TO BE SOLVED: To obtain both a nematic liquid crystal composition having characteristics of simultaneously achieving improvements in steepness and speed of response and having a remarkably high speed of response especially in a low-temperature range and a low temperature dependence of Vth and a liquid crystal display extremely useful for STN and TN-LCD, having a slight change in threshold potential in a wide temperature range and an actualized high-speed response when the composition is used as a liquid crystal display element. SOLUTION: This liquid crystal composition is characterized in that the composition comprises one or more kinds of compounds represented by general formula (I) as a first component and one or more kinds of compounds represented by general formula (II) as a second component, has >=75 deg.C nematic phase-isotropic phase transition temperature, <=-20 deg.C smectic phase or solid phase-nematic phase transition temperature and 0.07-0.30 anisotropy (Δn) of refractive index.
Patent JP-2002210827-A (JP)
Title: Method for mutually joining tubes
Inventor: WADA FUJIO
IPC: B29C65/24
Filed: 2001-01-23
Abstract: PROBLEM TO BE SOLVED: To provide a method for mutually joining tubes capable of obtaining high joining strength by melting the end surfaces of the tubes in a non-contact state by the radiant heat due to the induction heating of a metal plate to press them. SOLUTION: The tubes 2a (12a) and 2b (12b) are mounted in molds 1a and 1b cooperating with a high frequency oscillator 4, and the metal plate 3 is arranged to the gap W1 between the molds 1a and 1b so as not to come into contact with the end surfaces of the tubes 2a (12a) and 2b (12b). The high frequency oscillator 4 is operated and high frequency is applied to the metal plate 3 to generate heat. The end surfaces of the tubes 2a (12a) and 2b (12b) are melted by the heat generated from the metal plate at this time and, after the metal plate 3 is detached, the tubes 2a (12a) and 2b (12b) are pressed to be joined.
Patent JP-2002219555-A (JP)
Title: Casting method and casting device
Inventor: BAN KEISUKE
IPC: B22C3/00
Filed: 2001-01-25
Abstract: PROBLEM TO BE SOLVED: To provide a casting method capable of making a cooling speed of a molten metal poured into a feeding head slower than the cooling speed of a molten metal filled in a cavity by forming a feeding head of a casting mold as small as possible so as to enable to provide easily a difference in the cooling speeds. SOLUTION: In casting a desired shaped molding by pouring the molten metal of aluminum or its alloy into a cavity 12b of a casting mold 12, the molten metal and a reductional compound are brought into contact in the cavity 12b of the casting mold 12 to conduct casting while reducing an oxide film formed on the surface of the molten metal, and as the casting mold 12 the casting mold is used so that the feeding head 16 is formed between a pouring gate 12a for pouring the molten metal and the cavity 12b, and the heat insulation property of the feeding head is higher than that of the cavity 12b so that the cooling speed of the molten metal poured into the feeding head 16 becomes slower than that of the molten metal filled into the cavity 12b.  When the molten metal poured into the cavity 12b of the casting mold 12 is solidified and contracted, at least a part of the molten metal of the feeding head is made to flow into the cavity 12b to replenish.
Patent JP-2002227958-A (JP)
Title: Screw shaft for ball screw
Inventor: OGA SOICHIRO
IPC: F16H25/24
Filed: 2001-01-30
Abstract: PROBLEM TO BE SOLVED: To provide a screw shaft for a ball screw having an extension member connected to at least the end face or end part of a screw member, lowering production cost compared to conventional ones. SOLUTION: A screw member 2 and an extension member 3 are made of the same material. Before the extension member 3 is connected to the screw member 2, thread grooves are formed on the outer peripheral surface 2A of the screw member 2 over the length thereof, and the outer peripheral surface 2A is subjected to surface hardening and finish machining by induction hardening or carburizing. A circular hole 18 provided in an end face 19 of the extension member 3 is fitted by shrink fit into a protruded shaft 16 having a smaller diameter than the root diameter of the thread groove protruded on an end face 17 of the screw member 2 so that the end face 19 of the extension member 3 keeps close contact with the end face 17 of the screw member 2.  After the shrink fit, a twist is applied to the extension member 3 in order to shift the phase of the extension member 3 to the screw member 2, and to produce abrasion. The extension member 3 is connected to the end face 17 of the screw member 2 by subjecting the fitting surface between the protruded shaft 16 and the circular hole 18, and the end face 17 of the screw member 2 and the end face 19 of the extension member 3 to be baked by the abrasion.
Patent JP-2002232035-A (JP)
Title: Magnetoresistance effect element, magnetic reproducing head, magnetic reproducer, magnetic storage unit and method for sensing resistance of magnetoresistance effect film
Inventor: FUKUZAWA HIDEAKI
IPC: H01L43/08
Filed: 2001-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a magnetoresistance effect element or the like exhibiting a high magnetoresistance change rate and having a good bias point. SOLUTION: The magnetoresistance effect element comprises a magnetoresistance effect film 28 having a first ferromagnetic layer 21, a first nonmagnetic layer 19, second ferromagnetic layers 13, 17 having a magnetization of a second direction, a second nonmagnetic layer 9, a third ferromagnetic layer 7, and a layer 15 containing an oxide as a main component and formed in the second ferromagnetic layer, and a pair of electrodes 31 electrically connected to the film 28 to supply a current in a direction reverse to a second direction of a current magnetic field in the third ferromagnetic layer 5. Thus, a direction of a leakage magnetic field to be applied from the third layer 5 to the first layer 21 can be set to a direction for cancelling a direction of the magnetic field obtained by a sum of interlayer coupling magnetic field of the layer 21 and the layers 13, 17 by interlayer coupling from the second layers 13, 17 to be applied to the first layer 21 to the leakage magnetic field, current magnetic field.