专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明专利

JP2001296488A OPTICAL SWITCH 失效
公开(公告)号：JP2001296488A
公开(公告)日：2001-10-26
申请号：JP2000113216
申请日：2000-04-10
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： HORINO MASAYA , KUROSAWA HISAO , KOKUBO MASASHI , TSUSHIMA HIDEAKI
IPC分类号： G02B26/08 , G02B6/35
摘要： PROBLEM TO BE SOLVED: To realize an optical switch of small and compact 1×4 type. SOLUTION: The intermediate parts of two movable optical fibers 21a, 21b are fixed on the board 9 by a fixed block 12. Two movable blocks 13, 14 of a soft magnetic material are attached to both the tip parts of the movable optical fibers. A fixed block 10 of a soft magnetic material which can fix one optical fiber oppositely to the movable block 13 and a fixed block 11 of a soft magnetic material which can fix four optical fibers oppositely to the movable block 14 are placed on a board. Two movable blocks can be moved independently by actuators 15, 16 with respect to the fixed blocks. Besides, the position of two movable blocks can be detected by using detection electrodes 18, 23 with respect to the fixed blocks.

32. 发明专利

JP2000275551A FIBER TYPE OPTICAL SWITCH 失效
公开(公告)号：JP2000275551A
公开(公告)日：2000-10-06
申请号：JP8308299
申请日：1999-03-26
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： HORINO MASAYA , KUROSAWA HISAO
IPC分类号： G02B6/26 , G02B26/08
摘要： PROBLEM TO BE SOLVED: To obtain a low-cost optical switch which is superior in mass- productivity by minimizing the numbers of walls and surfaces for positioning needed for precise machining by determining the width of a couple of grooves so that one guide pin comes into contact with the side walls of the grooves and the other guide pin comes into contact with only a pressure plate. SOLUTION: An end part of an optical fiber 102 to which an input light signal is inputted is fixed to a movable fiber hold block 106. End parts of the guide pins 105a and 105b are inserted slidably into the grooves 202a and 202b formed on the hold block 106. The opening upper parts of the grooves 202a and 202b are closed with the pressure plate 201. The width of the groove 202 is so set that when one guide pin 105 comes into contact with the inside wall of the groove 202 of the hold block 106 and the pressure plate 201, the other guide pin 105 comes into contact with only the pressure plate 201 without coming into contact with the inside wall of the paired groove 202.

33. 发明专利

JP2000231064A METHOD FOR ASSEMBLING OPTICAL PATH SWITCHING PART OF OPTICAL SWITCH AND OPTICAL SWITCH 失效
公开(公告)号：JP2000231064A
公开(公告)日：2000-08-22
申请号：JP3226199
申请日：1999-02-10
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： HORINO MASAYA , SATO KAZUYASU , AIDA YASUO , FURUKAWA EIJI , KUROSAWA HISAO
IPC分类号： G02B6/24 , G02B26/02 , G02B26/08
摘要： PROBLEM TO BE SOLVED: To provide a method by which respective blocks for fixing an optical fiber are easily aligned in the case of assembling the optical path switching part of an optical switch. SOLUTION: Grooves for alignment 13a, 14a and 15a are previously formed on the blocks 13 and 14 by which the optical fiber for input 16 is fixed and the block 15 by which the optical fiber for output 17 is fixed in the case of assembling the optical path switching part of the optical switch. Then, a jig member 10 where a groove 11a is formed and a pin bar 12 having size that its lower half in a radial direction gets into the groove 11a when it is fit in the groove 11a are prepared. After fitting the pin bar 12 in the groove 11a, the blocks 13, 14 and 15 are arranged in series on the member 10 and the grooves 13a, 14a and 15a are fit to the pin bar 12, whereby the blocks 13, 14 and 15 are aligned with each other. After alignment, the pin bar 12 is removed together with the member 10.

34. 发明专利

JPH06230443A WAVEGUIDE TYPE SECOND HIGHER HARMONIC GENERATING ELEMENT AND ITS PRODUCTION 失效
公开(公告)号：JPH06230443A
公开(公告)日：1994-08-19
申请号：JP1614993
申请日：1993-02-03
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： KAEDE HIROSHI , KAWAMOTO KAZUTAMI , ITOU AKITOMO , KUROSAWA HISAO , SATO MASAZUMI , NITANDA FUMIO , ITO KOHEI
IPC分类号： G02B6/12 , G02F1/35 , G02F1/355 , G02F1/37 , G02F1/377 , H01S5/00 , H01S3/18
摘要： PURPOSE:To approximate the section of a polarization inversion grating to a rectangular shape and to enhance efficiency by specifying the angle formed by the periodic inversion boundary lines of polarization in an optical waveguide layer with the front surface or boundary of the optical waveguide layer to a specific range. CONSTITUTION:This second higher harmonic generating element consists of an optical substrate 51 and the ferroelectric optical waveguide layer 53 periodically arranged with polarization inversion areas having the refractive index higher than the refractive index of this optical substrate 51. The angle formed by the periodic inversion boundaries of the polarization in the optical waveguide layer 53 with the front surface or boundary of the optical waveguide layer 53 is specified to 75 to 105 deg., more preferably 85 to 95 deg.. The mismatch of the phase generated at the time the basic wave and the second higher harmonic progress in the optical waveguide layer 53 while acting on each other is efficiently compensated by specifying the angle formed by the inversion boundary lines to 75 to 105 deg., more particularly to 85 to 90 deg.. Consequently, the generation efficiency of the second higher harmonic in the optical waveguide layer 53 is enhanced.

35. 发明专利

JPH06160927A WAVEGUIDE TYPE SECOND HARMONIC WAVE GENERATING ELEMENT AND ITS PRODUCTION 失效
公开(公告)号：JPH06160927A
公开(公告)日：1994-06-07
申请号：JP31828592
申请日：1992-11-27
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： KAEDE HIROSHI , ITOU AKITOMO , KAWAMOTO KAZUTAMI , TATENO KIMIO , KUROSAWA HISAO , ITO KOHEI , NITANDA FUMIO
IPC分类号： G02F1/025 , G02F1/37 , H01S3/109 , H01S5/00 , H01S3/18
摘要： PURPOSE:To provide the second harmonic wave generating element of a waveguide type which enhances the efficiency of second harmonic wave conversion and the process for production of this element. CONSTITUTION:The conversion efficiency of the second harmonic wave is enhanced by periodically forming rectangular spontaneous polarization inversion parts 17 with in an optical waveguide. The element is constituted of >=2 layers of ferroelectric substances for this purpose. The first ferroelectric substance layer 11 is grown by an LPE method on the second ferroelectric substance layer 10 provided with the polarization inversion parts 15. The polarization inversion parts 15 of the second ferroelectric substance layer 10 are transferred into the first ferroelectric substance layer 11. An optical waveguide layer 12 is thereafter formed on the surface of the first ferroelectric substance layer 11. Since the surface shape of the polarization inversion grating is formed rectangular, the generation efficiency of the second harmonic wave is extremely high and the element effective for shortening the wavelength of the light source of optical disk devices, laser printers and other light applying devices is obtd. This element is adequately used as the light source for writing (recording) and reading out (reproducing) of information to and from, for example, magneto-optical disks and phase shift optical disks, etc.

36. 发明专利

JPH0667233A WAVEGUIDE TYPE SECOND HIGHER HARMONIC GENERATING ELEMENT AND ITS PRODUCTION 失效
公开(公告)号：JPH0667233A
公开(公告)日：1994-03-11
申请号：JP22056492
申请日：1992-08-20
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： KAEDE HIROSHI , ITOU AKITOMO , KAWAMOTO KAZUTAMI , ITO KOHEI , KUROSAWA HISAO , SATO MASAZUMI
IPC分类号： G02F1/37
摘要： PURPOSE:To provide the waveguide type 2nd higher harmonic generating element which is increased in 2nd higher harmonic conversion efficiency and lowered in wave front aberration and its manufacture. CONSTITUTION:An optical waveguide 52 which has a higher refractive index than a substrate 51 and is uniform in the refractive index is formed on the substrate 51 and the scattering of light in the optical waveguide is reduced; and rectangular self-polarization inversion areas 55 are periodically formed in the optical waveguide and then the phase matchability of a 2nd higher harmonic is improved to increase the conversion efficiency of the 2nd higher harmonic, thereby reducing the wave front aberration. For the purpose, an optical waveguide layer 52 of a single polarization area thin film is grown by an LPE method on the substrate 51 provided with a polarization inversion part 56 and then, the polarization inversion part 56 of the substrate is transferred into the optical waveguide layer 52 by a heat treatment to form the polarization inversion area 55 which is rectangularly sectioned.

37. 发明专利

JPS5776173A Magnetic alloy 失效
标题翻译：磁性合金
公开(公告)号：JPS5776173A
公开(公告)日：1982-05-13
申请号：JP15070280
申请日：1980-10-29
申请人： Hitachi Ltd , Hitachi Metals Ltd , Nippon Telegr & Teleph Corp
发明人： IGARASHI ZENJI , KUROSAWA HISAO , NAKANISHI HIROKI , ONO KENICHI , HOSHINO KOUICHI , HANEDA YOSHIKATSU
IPC分类号： C22C38/00 , C22C38/52 , H01F1/04 , H01F1/047
摘要： PURPOSE: To offer a magnetic alloy composed of a single alloy, having a complex magnetic property and excellent in workability, by preparing an alloy containing specified rates of Cr, Co, Ni, Si and Fe.
CONSTITUTION: An alloy comprising, by weight ratio, 17W35% Cr, 8W20% Co, 0.1W12% Ni, 0.1W5% Si and the balance being Fe. The alloy may contain 0.1W10% of one or more of Mn, Y, Cu, Zn, Al, C, rare earth metals, Ru, Rh, Pd, Os, Ir and Pt as additional components. Its complex magnetic property is obtained by solution- treating the alloy in an α+γ dual phase zone and utilizing the spinodal decomposition of each phase, a γ→α' transition mechanism and an age-precipitation-hardening mechanism so that mainly α contributes to a large coercive force while γ contributes to a small coercive force. Thus, the magnetic alloy abound in mass-producibility is obtained at a low cost.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过制备含有规定速率的Cr，Co，Ni，Si和Fe的合金，提供具有复合磁性和加工性优异的单一合金的磁性合金。构成：按重量比计含有17-35％Cr，8-20％Co，0.1-12％Ni，0.1-5％Si，余量为Fe的合金。该合金可以含有Mn，Y，Cu，Zn，Al，C，稀土金属，Ru，Rh，Pd，Os，Ir和Pt中的一种或多种的0.1-10％作为附加成分。其复合磁性是通过在α+γ双相区溶液处理合金而获得的，并利用每相的旋节线分解，γα'转变机理和年龄 - 沉淀 - 硬化机理，使得主要的α贡献于大的矫顽力，而伽马有助于小的矫顽力。因此，以低成本获得了大量生产性的磁性合金。

38. 发明专利

JPS5776161A Magnetic alloy 失效
标题翻译：磁性合金
公开(公告)号：JPS5776161A
公开(公告)日：1982-05-13
申请号：JP15069580
申请日：1980-10-29
申请人： Hitachi Ltd , Hitachi Metals Ltd , Nippon Telegr & Teleph Corp
发明人： IGARASHI ZENJI , KUROSAWA HISAO , NAKANISHI HIROKI , ONO KENICHI , KUMASAKA KAZUHIRO , HANEDA YOSHIKATSU
IPC分类号： C22C38/00 , C22C38/30 , H01F1/04 , H01F1/047
摘要： PURPOSE: To offer a magnetic alloy composed of a single alloy, having a complex magnetic property and excellent in workablity, by preparing an alloy containing specified rates of Cr, Co, Mo and Fe.
CONSTITUTION: An alloy comprising, by weight ratio, 17W35% Cr, 8W20% Co, 0.1W10% Mo and the balance being Fe, relating to a magnetic material useful as iron core for a switch or the like, is prepared. The alloy may contain 0.1W10% of one or more of Mn, Y, Cu, Zn, Al, C, rare earth metals, Ru, Rh, Pd, Os, Ir and Pt as additional components. Its complex magnetic property is obtained by solution- treating the alloy in an α+γ dual phase zone and utilizing the spinodal decomposition of each phase, a γ→α' transition mechanism and an age-precipitation-hardening mechanism so that mainly α contributes to a large coercive force while γ contributes to a small coercive force. Thus, the magnetic alloy abound in mass-producibility is produced at a low cost.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：提供具有复合磁性，合金性优良的单一合金构成的磁性合金，制备含有规定的Cr，Co，Mo，Fe的合金。构成：与可用作开关等的铁芯的磁性材料相关的包含按重量比计，17-35％Cr，8-20％Co，0.1-10％Mo和余量为Fe的合金是准备该合金可以含有Mn，Y，Cu，Zn，Al，C，稀土金属，Ru，Rh，Pd，Os，Ir和Pt中的一种或多种的0.1-10％作为附加成分。其复合磁性是通过在α+γ双相区溶液处理合金而获得的，并利用每相的旋节线分解，γα'转变机理和年龄 - 沉淀 - 硬化机理，使得主要的α贡献于大的矫顽力，而伽马有助于小的矫顽力。因此，以低成本生产大批量生产的磁性合金。

39. 发明专利

JPS5776152A Magnetic alloy 失效
标题翻译：磁性合金
公开(公告)号：JPS5776152A
公开(公告)日：1982-05-13
申请号：JP15068580
申请日：1980-10-29
申请人： Hitachi Ltd , Hitachi Metals Ltd , Nippon Telegr & Teleph Corp
发明人： IGARASHI ZENJI , KUROSAWA HISAO , NAKANISHI HIROKI , ONO KENICHI , KUBOTA SHIYOUZOU , TABATA KOTAROU
IPC分类号： C22C38/00 , C22C38/30 , H01F1/04 , H01F1/047
摘要： PURPOSE: To offer a low-cost magnetic alloy composed of a single alloy based on Fe-Cr-Co, having a complex magnetic property, excellent workability and abound in mass-producibility.
CONSTITUTION: The magnetic alloy comprises, by weight ratio, 17W35% Cr, 8W20% Co, 0.1W10% of one or more of V, Nb and Ta, 0.1W8% of one or more of Ti, Zr and Hf, and the balance being Fe. The alloy may contain 0.1W10% of one or more of Mn, Y, Cu, Al, C, R.E. and platinum-group metals as additional components. The alloy can be provided with a complex magnetic property by subjecting it to special heat treatment and working. That is, the complex magnetic property is obtained solution-treateing the alloy in an α+γ dual phase zone and utilizing the spinodal decomposition of each phase, a γ-α' transition mechanism and an age-precipitation-hardening mechanism, so that mainly α contributes to a large coercive force while γ contributes to a small coercive force.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：提供一种由Fe-Cr-Co单一合金组成的低成本磁性合金，具有复杂的磁性能，优异的加工性和大量生产性。构成：磁性合金按重量比包含17-35％的Cr，8-20％的Co，0.1-10％的V，Nb和Ta中的一种或多种，0.1-8％的一种或多种Ti，Zr 和Hf，余量为Fe。该合金可含有0.1-10％的一种或多种Mn，Y，Cu，Al，C，R.E。和铂族金属作为附加组分。该合金可以通过对其进行特殊的热处理和加工而具有复杂的磁性。也就是说，获得了复合磁性，在α+γ双相区域处理合金，利用每相的旋节线分解，γ-α'过渡机制和年龄 - 沉淀 - 硬化机理，使得主要 α有助于大的矫顽力，而γ有助于小的矫顽力。

40. 发明专利

JPH0916917A MAGNETO-RESISTIVE MAGNETIC HEAD AND ITS PRODUCTION 失效
公开(公告)号：JPH0916917A
公开(公告)日：1997-01-17
申请号：JP16507695
申请日：1995-06-30
申请人： HITACHI METALS LTD
发明人： KUROSAWA HISAO
IPC分类号： G11B5/39
摘要： PURPOSE: To improve the reproducing characteristics of an MR head by incorporating gaseous nitrogen into an SAL film to lower a magneto-resistive effect and magnetostrictive effect. CONSTITUTION: The SAL film is formed by using a sputtering method and a sputtering gas contg. nitrogen is used, by which >=Swt.% gaseous nitrogen is included into the SAL film. More specifically, an RF magnetron sputtering device of a load lock type is used and the gaseous nitrogen content in gaseous Ar is controlled within a range of 0 to 20% by changing the nitrogen content in the film while the gaseous pressure is maintained constantly under 0.2Pa. The nitrogen-contg. SAL film exhibits a tendency to lowering of magnetostriction and intrinsic resistance change rate with an increase in the nitrogen content. The magneto-resistive effect of the MR film is lowered to is 3wt.%.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式