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1. 发明授权

US5874378A Sintered aluminum nitride 失效
标题翻译：烧结氮化铝
公开(公告)号：US5874378A
公开(公告)日：1999-02-23
申请号：US881110
申请日：1997-06-23
申请人： Masanobu Ishida , Toshihiro Iwaida , Hiroshi Okayama
发明人： Masanobu Ishida , Toshihiro Iwaida , Hiroshi Okayama
IPC分类号： C04B35/581 , H01L23/14 , H05K1/03
CPC分类号： C04B35/581 , H05K1/0306
摘要： A sintered aluminum nitride contains rare earth elements (RE) in amounts of from 3 to 10% by weight in terms of RE.sub.2 O.sub.3, alkaline earth elements (R) in amounts of from 0.3 to 3.0% by weight in terms of RO, and silicon atoms in an amount of from 0.3 to 1.0% by weight in terms of SiO.sub.2, the grain boundaries of AlN crystals being chiefly a YAG type crystalline phase. The sintered product is obtained by firing at a temperature as low as 1700.degree. C. or lower, has a thermal conductivity of not smaller than 60 W/m.cndot.K, loses weight in an amount of not more than 10 mg/cm.sup.2 when it is left to stand in a 4N NaOH aqueous solution maintained at 70.degree. C. for one hour, and exhibits excellent resistance against the alkalis.
摘要翻译：氮化铝烧结体含有稀土元素（RE），以RE 2 O 3为3〜10重量％，RO为0.3〜3.0重量％的碱土金属元素（R），硅原子以SiO 2换算为0.3〜1.0重量％，AlN晶体的晶界主要为YAG型结晶相。通过在低于1700℃或更低的温度下焙烧获得烧结产品，其热导率不低于60W / mK，当剩余时，其重量不超过10mg / cm 2 在保持在70℃的4N NaOH水溶液中静置1小时，并显示出优异的耐碱性。

2. 发明授权

US5726840A Magnetic head apparatus having multiple recessed magnetic metal films 失效
标题翻译：具有多个凹陷磁性金属膜的磁头装置
公开(公告)号：US5726840A
公开(公告)日：1998-03-10
申请号：US691658
申请日：1996-08-02
申请人： Seiko Uemura , Hiroshi Okayama , Seishi Tomari
发明人： Seiko Uemura , Hiroshi Okayama , Seishi Tomari
IPC分类号： G11B5/23 , G11B5/187 , G11B5/31 , G11B5/40 , G11B5/60
CPC分类号： G11B5/1871 , G11B5/1878 , G11B5/40 , G11B5/6011
摘要： A slider being made of ferrite and a core formed with a magnetic metal film on its gap confronting surface are connected together by means of bonding glass so as to sandwich a non-magnetic film therebetween as a magnetic gap. The magnetic metal film is made of a magnetic metal material such as Fe--Ni, Fe--Al--Si and the like, and is constructed through the thin-film fabrication technology such as sputtering. A recessed portion is provided on the magnetic metal film in such a manner that the recessed portion is retracted from a medium confronting surface of the magnetic head by a depth t. Thus, no color change is caused on the magnetic metal material and, therefore, no deterioration in various characteristics of the magnetic head is expected.
摘要翻译：由铁氧体制成的滑块和在其间隙面上形成有磁性金属薄膜的芯通过粘合玻璃连接在一起，以夹在其间的非磁性膜作为磁隙。磁性金属膜由Fe-Ni，Fe-Al-Si等磁性金属材料构成，通过溅射等薄膜制造技术构成。以这样的方式在磁性金属膜上设置凹部，使得凹部从磁头的介质相对表面缩回深度t。因此，不会在磁性金属材料上引起颜色变化，因此不期望磁头的各种特性的恶化。

3. 发明授权

US5410487A Dynamic error correcting apparatus for inertial navigation 失效
标题翻译：用于惯性导航的动态纠错装置
公开(公告)号：US5410487A
公开(公告)日：1995-04-25
申请号：US020840
申请日：1993-02-22
申请人： Hiroshi Okayama , Masao Kobayashi , Satoshi Ito , Yoshio Hirose
发明人： Hiroshi Okayama , Masao Kobayashi , Satoshi Ito , Yoshio Hirose
IPC分类号： G01C21/16 , G01C25/00 , C06F15/50
CPC分类号： G01C25/005 , G01C21/16
摘要： A counting section includes: a first gyro pulse counter which counts gyro pulses from each of X-, Y-, Z- and S-axis gyroscopes during each counting period after being reset immediately before the start of the counting period and outputs the count value as a first gyro pulse count value at fixed time intervals; and a second gyro pulse counter which is reset at said fixed time intervals, counts the gyro pulses and outputs the count value as a second gyro pulse count value. A dynamic error calculating section includes: gyro multipliers/subtractors whereby, for each combination of two different main axes, a mutual product difference of the gyro pulse count values for the two axes is calculated as a main-axis system gyro pulse error and, for each combination of one of the X, Y and Z axes and the S axis, a mutual product difference of the gyro pulse count values for the S axis and each of the X, Y and Z axes is calculated as an auxiliary-axis system gyro error; and a gyro error integrating section whereby each of the X-axis, Y-axis and Z-axis system gyro errors and the auxiliary-axis system gyro error, provided at the fixed time intervals, are accumulated within each calculation period to obtain a gyro error integrated value. A strap-down calculating processor uses the gyro error integrated values from the gyro error integrating section to calculate the correctional quantity of a coning error for each system wherein one of the X, Y and Z axes is replaced with the S axis.
摘要翻译：计数部分包括：第一陀螺仪脉冲计数器，在立即在计数周期开始之前的复位之后的每个计数周期期间计数来自X，Y，Z和S轴陀螺仪中的每一个的陀螺仪脉冲，并输出计数值作为固定时间间隔的第一陀螺仪脉冲计数值; 并且以所述固定时间间隔复位的第二陀螺仪脉冲计数器对陀螺仪脉冲进行计数，并将该计数值作为第二陀螺仪脉冲计数值输出。动态误差计算部分包括：陀螺仪乘法器/减法器，其中对于两个不同主轴的每个组合，两轴的陀螺仪脉冲计数值的相互乘积差被计算为主轴系陀螺仪脉冲误差，并且对于 X轴，Y轴和Z轴之间的每个组合以及S轴，计算S轴与X轴，Y轴和Z轴各自的陀螺仪脉冲计数值的相乘差作为辅助轴系陀螺错误; 以及在每个计算周期内累积以固定时间间隔提供的X轴，Y轴和Z轴系陀螺误差以及辅轴系陀螺误差各自的陀螺误差积分部，以获得陀螺仪误差积分值。减速计算处理器使用来自陀螺仪误差积分部分的陀螺仪误差积分值来计算每个系统的锥形误差的校正量，其中X轴，Y轴和Z轴之一被S轴代替。

4. 发明授权

US5729412A Magnetic head including a recessed magnetic metal film 失效
标题翻译：磁头包括凹陷的磁性金属膜
公开(公告)号：US5729412A
公开(公告)日：1998-03-17
申请号：US330237
申请日：1994-10-27
申请人： Seiko Uemura , Hiroshi Okayama , Seishi Tomari
发明人： Seiko Uemura , Hiroshi Okayama , Seishi Tomari
IPC分类号： G11B5/23 , G11B5/187 , G11B5/31 , G11B5/40 , G11B5/60 , G11B5/127
CPC分类号： G11B5/1871 , G11B5/1878 , G11B5/40 , G11B5/6011
摘要： A slider being made of ferrite and a core formed with a magnetic metal film on its gap confronting surface are connected together by means of bonding glass so as to sandwich a non-magnetic film therebetween as a magnetic gap. The magnetic metal film is made of a magnetic metal material such as Fe-Ni, Fe-Al-Si and the like, and is constructed through the thin-film fabrication technology such as sputtering. A recessed portion is provided on the magnetic metal film in such a manner that the recessed portion is retracted from a medium confronting surface of the magnetic head by a depth t. Thus, no color change is caused on the magnetic metal material and, therefore, no deterioration in various characteristics of the magnetic head is expected.
摘要翻译：由铁氧体制成的滑块和在其间隙面上形成有磁性金属薄膜的芯通过粘合玻璃连接在一起，以夹在其间的非磁性膜作为磁隙。磁性金属膜由Fe-Ni，Fe-Al-Si等磁性金属材料构成，通过溅射等薄膜制造技术构成。以这样的方式在磁性金属膜上设置凹部，使得凹部从磁头的介质相对表面缩回深度t。因此，不会在磁性金属材料上引起颜色变化，因此不期望磁头的各种特性的恶化。

5. 发明授权

US5481422A Magnetic head with metallic magnetic film and protective film means 失效
标题翻译：磁头用金属磁性膜和保护膜装置
公开(公告)号：US5481422A
公开(公告)日：1996-01-02
申请号：US89524
申请日：1993-07-21
申请人： Hiroshi Okayama , Kazuhiro Ishibashi
发明人： Hiroshi Okayama , Kazuhiro Ishibashi
IPC分类号： G11B5/127 , G11B5/187 , G11B5/23
CPC分类号： G11B5/1878
摘要： A magnetic head comprising first and second core halves made of an oxide magnetic material and arranged to be abutted against each other to have a winding channel and to define at least one magnetic gap therebetween and joined by a bonding glass. On each of the surfaces of the first and second core halves which respectively face said magnetic gap, there is provided a metallic magnetic film made of a metallic magnetic material including nitrogen. Further, a protective film is provided on each of the metallic magnetic films. The protective film is made of a nitride material such as CrN, VN, Si3N4, BN, TaN, AlN, TiN and ZrN. The protective films prevent the nitrogen of the metallic magnetic films from discharging into the bonding glass.
摘要翻译：一种磁头，包括由氧化物磁性材料制成并被布置为彼此抵接以具有缠绕通道并且在其间限定至少一个磁隙并由接合玻璃连接的第一和第二半体半部。在分别面对所述磁隙的第一和第二半芯的每个表面上，提供由包括氮的金属磁性材料制成的金属磁性膜。此外，在每个金属磁性膜上设置保护膜。保护膜由诸如CrN，VN，Si 3 N 4，BN，TaN，AlN，TiN和ZrN的氮化物材料制成。保护膜防止金属磁性膜的氮气进入粘合玻璃。

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