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31. 发明授权

US06456160B1 Feedforward amplifier 失效
标题翻译：前馈放大器
公开(公告)号：US06456160B1
公开(公告)日：2002-09-24
申请号：US09840181
申请日：2001-04-24
申请人： Masatoshi Nakayama , Kenichi Horiguchi , Yuji Sakai , Yukio Ikeda , Junichi Nagano , Haruyasu Senda
发明人： Masatoshi Nakayama , Kenichi Horiguchi , Yuji Sakai , Yukio Ikeda , Junichi Nagano , Haruyasu Senda
IPC分类号： H03F366
CPC分类号： H03F1/3229
摘要： A feedforward amplifier combines an input signal delayed by a delay circuit with an output signal by a combiner; down-converts the output of the combiner to a low frequency by a frequency converter; extracts a distortion component from the output of the frequency converter; measures the distortion component by a power detector; and controls a second vector regulator of a distortion canceling loop by a controller such that the distortion component measured becomes minimum.
摘要翻译：前馈放大器将由延迟电路延迟的输入信号与组合器的输出信号进行组合; 通过变频器将组合器的输出下变频为低频; 从变频器的输出中提取失真分量; 通过功率检测器测量失真分量; 并且通过控制器控制失真消除环路的第二矢量调节器，使得测量的失真分量变得最小。

32. 发明授权

US6133791A Feedforward amplifier with improved characteristics without using pilot signal 失效
标题翻译：前馈放大器具有改进的特性，无需使用导频信号
公开(公告)号：US6133791A
公开(公告)日：2000-10-17
申请号：US177651
申请日：1998-10-23
申请人： Kenichi Horiguchi , Masatoshi Nakayama , Yukio Ikeda , Tadashi Takagi , Haruyasu Senda
发明人： Kenichi Horiguchi , Masatoshi Nakayama , Yukio Ikeda , Tadashi Takagi , Haruyasu Senda
IPC分类号： H03F1/32 , H03F1/00
CPC分类号： H03F1/3229
摘要： A feedforward amplifier which includes a distortion detector, a distortion eliminator, an error power extractor, a first level detector and a first controller. The error power extractor extracts output error power due to variations in the distortion eliminator by combining the output signal from the distortion eliminator with the signal from a first linear signal path in the distortion detector in opposite phases. The first level detector detects the output error power extracted by the error power extractor, and the first controller controls a first variable attenuator and a first phase shifter which are interposed in the distortion eliminator such that the output error power is maintained at zero. This can solve a problem of a conventional feedforward amplifier in that the power level of the pilot signal must be increased to heighten the detection sensitivity of the pilot signal because the detection level of the pilot signal becomes minimum at an optimum operation point, and that the increasing power of the pilot signal degrades the communication quality of a system employing the conventional feedforward amplifier.
摘要翻译：一种前馈放大器，包括失真检测器，失真消除器，误差功率提取器，第一电平检测器和第一控制器。误差功率提取器通过将来自失真消除器的输出信号与来自失真检测器中的第一线性信号路径的信号相反地组合，由于失真消除器的变化而提取输出误差功率。第一电平检测器检测由误差电力提取器提取的输出误差功率，并且第一控制器控制插入失真消除器中的第一可变衰减器和第一移相器，使得输出误差功率保持为零。这可以解决常规前馈放大器的问题，因为导频信号的检测电平在最佳操作点变为最小时必须提高导频信号的功率电平，以提高导频信号的检测灵敏度，导频信号的增加功率降低了采用常规前馈放大器的系统的通信质量。

33. 发明授权

US5707717A Articles having diamond-like protective film 失效
标题翻译：具有菱形保护膜的制品
公开(公告)号：US5707717A
公开(公告)日：1998-01-13
申请号：US209573
申请日：1994-03-10
申请人： Masanori Shibahara , Masatoshi Nakayama
发明人： Masanori Shibahara , Masatoshi Nakayama
IPC分类号： B29C33/56 , C03B11/08 , C03B40/00 , C03C17/34 , C23C16/02 , C23C16/26 , C03B19/02
CPC分类号： C03B11/086 , B29C33/56 , C03B40/00 , C03C17/3441 , C23C16/0272 , C23C16/26 , B29K2907/04 , C03B2215/10 , C03B2215/11 , C03B2215/12 , C03B2215/24 , C03B2215/34 , Y10T428/24942 , Y10T428/24975 , Y10T428/24983 , Y10T428/265 , Y10T428/30 , Y10T428/31678
摘要： A protectively coated article comprises a substrate of a material selected from the group consisting of alloys containing at least Co, Ni, or Fe, ceramics, and glass and which has only a slight affinity for a diamond-like thin film, an intermediate carbon layer formed on the substrate, the intermediate layer having a hardness Hv in the range from 1000 to 5000 kg/mm2, or harder than the substrate but less hard than a diamond-like thin film to be formed thereon, and a diamond-like thin film formed further thereon. The interposition of the intermediate layer permits the diamond-like thin film to be bound securely to a substrate surface which has a slight affinity for the film.
摘要翻译：一种保护涂层制品包括选自由至少含有Co，Ni或Fe，陶瓷和玻璃的合金的材料的基底，并且其对于类金刚石薄膜仅具有轻微的亲和力，中间碳层形成在基板上，中间层的硬度Hv在1000-5000kg / mm2的范围内，或比基板硬，但难于形成在其上的类金刚石薄膜，并且金刚石状薄膜形成在其上。中间层的插入允许类金刚石薄膜牢固地结合到对薄膜具有轻微亲和性的基底表面。

34. 发明申请

US20150035066A1 FET CHIP 审中-公开
标题翻译： FET芯片
公开(公告)号：US20150035066A1
公开(公告)日：2015-02-05
申请号：US14378219
申请日：2012-04-27
申请人： Hiroshi Otsuka , Toshiyuki Oishi , Eigo Kuwata , Takashi Yamasaki , Makoto Kimura , Masatoshi Nakayama
发明人： Hiroshi Otsuka , Toshiyuki Oishi , Eigo Kuwata , Takashi Yamasaki , Makoto Kimura , Masatoshi Nakayama
IPC分类号： H01L27/088 , H01L23/66
CPC分类号： H01L27/088 , H01L23/66 , H01L27/0207 , H01L27/0605 , H01L27/0629 , H01L27/0727 , H01L29/0642 , H01L29/0692 , H01L29/2003 , H01L29/7786 , H01L2223/6611 , H01L2924/0002 , H03F3/195 , H01L2924/00
摘要： An FET chip is configured to include an oscillation suppression circuit that has a gate capacitance C formed between a gate electrode 5c and two-dimensional electron gas, and a channel resistance R between the gate electrode 5c and a source electrode 7c, and therefore the oscillation suppression circuit is loaded by only an FET process to make an MMIC design unnecessary, so that it is possible to attain stabilization of an FET while suppressing increase in cost, and to suppress oscillation.
摘要翻译： FET芯片被配置为包括在栅极电极5c和二维电子气体之间形成栅极电容C的振荡抑制电路以及栅极电极5c和源极电极7c之间的沟道电阻R，因此振荡抑制电路仅通过FET工艺加载，从而不需要MMIC设计，从而可以在抑制成本增加并抑制振荡的同时实现FET的稳定化。

35. 发明申请

US20100033241A1 HIGH FREQUENCY AMPLIFIER 有权
标题翻译：高频放大器
公开(公告)号：US20100033241A1
公开(公告)日：2010-02-11
申请号：US12514159
申请日：2006-11-30
申请人： Kazutomi Mori , Kazuhiro Iyomasa , Akira Ohta , Teruyuki Shimura , Masatoshi Nakayama
发明人： Kazutomi Mori , Kazuhiro Iyomasa , Akira Ohta , Teruyuki Shimura , Masatoshi Nakayama
IPC分类号： H03F3/68 , H03F3/189
CPC分类号： H03F1/0277 , H03F1/565 , H03F3/191 , H03F3/211 , H03F3/72 , H03F2200/318 , H03F2200/366 , H03F2200/387 , H03F2200/451 , H03F2200/456 , H03F2203/7233 , H03F2203/7236 , H03H7/38
摘要： Provided is a high frequency amplifier including two amplifying elements of different element sizes connected in parallel and switching the amplifying elements in accordance with a level of output power. In particular, the high frequency amplifier includes an output matching circuit for matching to characteristic impedance (50 ohms) both when the output power is high and low, and increasing impedance when the turned-off amplifying element is viewed from a connection node on an output side of the two amplifying elements. Consequently, characteristics such as high output power and high efficiency can be achieved and it is possible to prevent an amplified high frequency signal from passing around to a matching circuit on a turned-off amplifying element side.
摘要翻译：提供了包括并联连接的不同元件尺寸的两个放大元件的高频放大器，并且根据输出功率的电平来切换放大元件。特别地，高频放大器包括输出匹配电路，用于在输出功率高和低时匹配特性阻抗（50欧姆），并且当输出端上的连接节点观察关断放大元件时增加阻抗一侧的两个放大元件。因此，可以实现诸如高输出功率和高效率的特性，并且可以防止放大的高频信号在关闭放大元件侧通过到匹配电路。

36. 发明申请

US20070241815A1 Linearizer 失效
标题翻译：线性化器
公开(公告)号：US20070241815A1
公开(公告)日：2007-10-18
申请号：US11660136
申请日：2004-10-28
申请人： Hifumi Noto , Kazuhide Yamauchi , Yoshihiro Hamamatsu , Tomokazu Hamada , Masatoshi Nakayama
发明人： Hifumi Noto , Kazuhide Yamauchi , Yoshihiro Hamamatsu , Tomokazu Hamada , Masatoshi Nakayama
IPC分类号： H03F1/30
CPC分类号： H03F1/3276 , H03F1/3223 , H03F2200/468
摘要： A linearizer changes a gain characteristic to a valley characteristic in which a gain reduces and then increases. The linearizer includes: a signal path in which an RF signal input terminal (1), an input side bias blocking capacitor (4), a diode pair (8, 12) including diodes having opposite polarities to each other, an output side bias blocking capacitor (5), and an RF signal output terminal (2) in series in the stated order; a bias circuit in which a resistor is provided between and a signal path formed between the input side bias blocking capacitor (4) and the diode pair (8, 12) and a bias terminal (3); an RF short-circuiting capacitor (6) whose one end is connected with the bias circuit between the bias terminal (3) and the resistor (7) and whose other end is grounded; and a DC feed inductor (11) whose one end is connected with the signal path between the diode pair (8, 12) and the output side bias blocking capacitor (5) and whose other end is grounded.
摘要翻译：线性化器将增益特性改变为增益减小然后增加的谷特性。线性化装置包括：信号路径，其中RF信号输入端（1），输入侧偏置阻塞电容（4），二极管对（8,12）包括彼此极性相反的二极管，输出侧偏压电容器（5）和RF信号输出端子（2）按照所述顺序串联; 偏置电路，其中设置电阻器和形成在输入侧偏置阻断电容器（4）和二极管对（8,12）之间的信号路径和偏置端子（3）; RF短路电容器（6），其一端与偏置端子（3）和电阻器（7）之间的偏置电路连接，另一端接地; 和一个直流馈电电感（11），其一端与二极管对（8,12）和输出侧偏压电容（5）之间的信号通路连接，另一端接地。

37. 发明授权

US07283326B2 Methods for producing a protective film on recording media 有权
标题翻译：在记录媒体上制作保护膜的方法
公开(公告)号：US07283326B2
公开(公告)日：2007-10-16
申请号：US10867742
申请日：2004-06-16
申请人： Masatoshi Nakayama
发明人： Masatoshi Nakayama
IPC分类号： G11B5/40 , G11B5/39
CPC分类号： G11B5/187 , G11B5/127 , Y10T428/1164
摘要： A method of producing a protective film on recording media including forming a protective film on at least the surface facing a recording medium, said protective film having the composition represented by the formula: SiCXHYOZNW, where X=3-26, Y=0.5-13, Z=0.5-6 and W=0-6, in terms of atomic ratio, having a film thickness of 1-3 nm and having a refractive index of 2.0 or more.
摘要翻译：一种在包括在至少面向记录介质的表面上形成保护膜的记录介质上制备保护膜的方法，所述保护膜具有由下式表示的组成：SiC Y 其中X = 3-26，Y = 0.5-13，Z = 0.5-6和W = 0-6，换句话说，是N 的原子比，膜厚为1-3nm，折射率为2.0以上。

38. 发明申请

US20070227302A1 Magnetic metal powder suitable for use in magnetic recording media and method of manufacturing the powder 有权
标题翻译：适用于磁记录介质的磁性金属粉末及其制造方法
公开(公告)号：US20070227302A1
公开(公告)日：2007-10-04
申请号：US11727482
申请日：2007-03-27
申请人： Takayuki Yoshida , Masatoshi Nakayama , Ryota Igarashi
发明人： Takayuki Yoshida , Masatoshi Nakayama , Ryota Igarashi
IPC分类号： B22F9/18
CPC分类号： H01F1/065 , G11B5/70615 , G11B5/70621 , G11B5/714 , H01F1/0054 , H01F1/061 , H01F1/09 , Y10T428/2991
摘要： A metal magnetic powder for a magnetic recording medium is provided whose particles have a metal magnetic phase, composed mainly of Fe or Fe plus Co, and an oxide layer, wherein the average major axis length of the powder particles is 10-50 nm, the average particle volume including the oxide layer is 5,000 nm3 or less, the atomic ratio (R+Al+Si)/(Fe+Co) calculated using the content values (at. %) of the elements contained in the powder particles is 20% or less, where R is rare earth element (Y being treated as a rare earth element). The metal magnetic powder is obtained by using a complexing agent and a reducing agent to elute nonmagnetic constituents after firing. The metal magnetic powder exhibits a large saturation magnetization σs for its particle volume while maintaining weatherability comparable to the conventional level and is suitable for a coated-type magnetic recording medium.
摘要翻译：提供一种用于磁记录介质的金属磁粉，其颗粒具有主要由Fe或Fe + Co组成的金属磁性相和氧化物层，其中粉末颗粒的平均长轴长度为10-50nm，包括氧化物层的平均粒子体积为5000nm 3以下，使用元素的含量值（at。％）计算的原子比（R + Al + Si）/（Fe + Co）粉末颗粒中的含量为20％以下，其中R为稀土元素（Y为稀土元素处理）。通过使用络合剂和还原剂在烧制后洗脱非磁性成分得到金属磁性粉末。金属磁性粉末对于其颗粒体积显示出大的饱和磁化强度，同时保持与常规水平相当的耐候性，并且适用于涂覆型磁记录介质。

39. 发明申请

US20070164818A1 High efficiency amplifier 审中-公开
标题翻译：高效放大器
公开(公告)号：US20070164818A1
公开(公告)日：2007-07-19
申请号：US10591644
申请日：2004-06-18
申请人： Kenichi Horiguchi , Masatoshi Nakayama , Tadashi Takagi
发明人： Kenichi Horiguchi , Masatoshi Nakayama , Tadashi Takagi
IPC分类号： H03F3/68
CPC分类号： H03F1/0288 , H03F1/3276
摘要： A high efficiency amplifier has an analog predistortion circuit (5) connected between an input side dividing circuit (2) and a quarter-wave line (6). This offers an advantage of being able to improve the linearity of the entire amplifier because the nonlinear distortion of a peak amplifier (7) is compensated.
摘要翻译：高效率放大器具有连接在输入侧分频电路（2）和四分之一波长线（6）之间的模拟预失真电路（5）。这提供了能够提高整个放大器的线性度的优点，因为峰值放大器（7）的非线性失真被补偿。

40. 发明授权

US5827613A Articles having diamond-like protective film and method of manufacturing the same 失效
标题翻译：具有类金刚石保护膜的制品及其制造方法
公开(公告)号：US5827613A
公开(公告)日：1998-10-27
申请号：US209571
申请日：1994-03-10
申请人： Masatoshi Nakayama , Masanori Shibahara
发明人： Masatoshi Nakayama , Masanori Shibahara
IPC分类号： B29C33/56
CPC分类号： B29C33/56 , Y10T428/12771 , Y10T428/12806 , Y10T428/12812 , Y10T428/12826 , Y10T428/12833 , Y10T428/12931 , Y10T428/30 , Y10T428/31678
摘要： Articles having a diamond-like protective film formed thereon, each comprising a substrate of a material selected from the group consisting of alloys containing at least Co, Ni, or Fe, ceramics, and glass and which has only a slight affinity for a diamond-like thin film, an Mo film formed on the substrate, and a diamond-like thin film formed further thereon. Such articles are manufactured by a method which comprises holding a grid made of Mo close to the surface of the substrate, bombarding the grid and the substrate surface with a bombarding gas consisting of inert gas atoms of Ar or the like, thereby removing contaminants from the surface and depositing Mo atoms on the substrate surface to form an Mo film thereon, ionizing a low-molecular-weight hydrocarbon or a feed gas capable of producing a low-molecular-weight hydrocarbon upon decomposition or reaction, and then accelerating the resulting ions and depositing the same on the Mo film to form a diamond-like film thereon. The substrate is preferably a metallic mold constructed of a hardened steel. The Mo film enhances the bond of the diamond-like film to the substrate and improves the strength of the mold surface.
摘要翻译：在其上形成有金刚石状保护膜的制品，每个包含选自由至少含有Co，Ni或Fe的合金，陶瓷和玻璃组成的组的基材，并且其对金刚石 - 形成在基板上的Mo膜，以及形成在其上的金刚石状薄膜。这样的制品通过以下方法制造：将由Mo制成的栅格保持在基板的表面附近，用Ar等惰性气体原子的轰击气体轰击栅格和基板表面，由此从在基板表面上沉积Mo原子以在其上形成Mo膜，在分解或反应时电离低分子量烃或能够产生低分子量烃的进料气体，然后加速所得离子和将其沉积在Mo膜上以在其上形成类金刚石膜。基板优选为由硬化钢构成的金属模。 Mo膜增强了类金刚石膜与基材的结合，提高了模具表面的强度。

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