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    • 23. 发明申请
    • POLYLACTIC ACID AND METHOD OF PRODUCING THE SAME
    • 聚酸及其生产方法
    • US20100004404A1
    • 2010-01-07
    • US12376421
    • 2007-08-01
    • Hirotaka SuzukiMasayuki Takada
    • Hirotaka SuzukiMasayuki Takada
    • C08G63/91
    • C08G63/08C08G63/78C08G63/90C08L67/04C08L2205/02C08L2666/18
    • A method of producing a stereocomplex polylactic acid having a high melting point and a high molecular weight, wherein only stereocomplex crystals are grown even when melting and crystallization are repeated.The method comprises the steps of: (1) obtaining a first polylactic acid by the ring-opening polymerization of a first lactide composed of lactic acid units of the same chirality; (2) obtaining a purified first polylactic acid by removing the lactide from the first polylactic acid in a molten state under reduced pressure; (3) obtaining a second polylactic acid by the ring-opening polymerization of a second lactide which differs from the first lactide in chirality in the presence of the purified first polylactic acid; and (4) obtaining a purified second polylactic acid by removing the lactide from the second polylactic acid in a molten state under reduced pressure.
    • 制造具有高熔点和高分子量的立体络合物聚乳酸的方法,其中即使在重复熔融和结晶时也仅生长立体络合物晶体。 该方法包括以下步骤:(1)通过由具有相同手性的乳酸单元组成的第一丙交酯的开环聚合获得第一聚乳酸; (2)通过在减压下在熔融状态下从第一聚乳酸中除去丙交酯得到纯化的第一聚乳酸; (3)在纯化的第一聚乳酸的存在下,通过手性不同于第一丙交酯的第二丙交酯的开环聚合获得第二聚乳酸; 和(4)通过在减压下在熔融状态下从第二聚乳酸中除去丙交酯获得纯化的第二聚乳酸。
    • 25. 发明授权
    • Wireless communication apparatus and method, and computer program
    • 无线通信装置和方法以及计算机程序
    • US07532665B2
    • 2009-05-12
    • US11139684
    • 2005-05-31
    • Keiji AkiyamaKatsuyuki TanakaMasayuki Takada
    • Keiji AkiyamaKatsuyuki TanakaMasayuki Takada
    • H04B1/38
    • H04B1/40
    • A wireless communication apparatus for transmission/reception of a wireless communication signal, including first and second circuits that process a transmission/reception signal, an oscillator that generates a reception clock on a first circuit side, the reception clock being used for an operation reference, a first interface that supplies the reception clock from the first circuit to the second circuit, a second interface that supplies, to the first circuit, transmission data output from the second circuit synchronously with the reception clock supplied from the first circuit, and delay compensation that compensates for a delay between the reception clock and transmission data at the first circuit, the reception clock and transmission data being input via the second interface.
    • 一种用于发送/接收无线通信信号的无线通信装置,包括处理发送/接收信号的第一和第二电路,在第一电路侧产生接收时钟的振荡器,用于操作参考的接收时钟, 将接收时钟从第一电路提供给第二电路的第一接口,向第一电路提供与从第一电路提供的接收时钟同步地从第二电路输出的传输数据的第二接口和延迟补偿, 补偿第一电路的接收时钟和发送数据之间的延迟,接收时钟和发送数据经由第二接口输入。
    • 26. 发明授权
    • GPS receiving apparatus and GPS satellite signal receiving method
    • GPS接收装置和GPS卫星信号接收方法
    • US07209514B2
    • 2007-04-24
    • US10373550
    • 2003-02-25
    • Katsuyuki TanakaJason SanmiyaMasayuki TakadaHideki TakahashiKoichiro Teranishi
    • Katsuyuki TanakaJason SanmiyaMasayuki TakadaHideki TakahashiKoichiro Teranishi
    • H04B1/00
    • G01S19/30G01S19/28G01S19/29G01S19/34G01S19/35
    • Disclosed is a GPS receiving apparatus including a synchronous acquisition unit and a synchronous hold unit. The synchronous acquisition unit detects a correlation between a spread code of a received signal from a GPS satellite and a spread code provided by the apparatus in order to detect a phase of the spread code of the received signal and a carrier frequency of the received signal. The synchronous hold unit has a plurality of channels and allocates one of the channels to one of a plurality of GPS satellites. The synchronous hold unit also establishes initial values based on the spread code phase of the received signal following detection by the synchronous acquisition unit as well as on the likewise-detected carrier frequency of the received signal, before starting synchronous hold of the spread code and the carrier frequency regarding the signal from the GPS satellite in question while decoding the signal from the GPS satellite.
    • 公开了一种包括同步捕获单元和同步保持单元的GPS接收装置。 同步获取单元检测来自GPS卫星的接收信号的扩展码与由该装置提供的扩展码之间的相关性,以便检测接收信号的扩展码的相位和接收信号的载波频率。 同步保持单元具有多个信道,并且将一个信道分配给多个GPS卫星之一。 在开始同步保持扩展码之前,同步保持单元还基于同步采集单元检测到的接收信号的扩展码相位以及同样检测到的接收信号的载波频率,建立初始值, 关于来自GPS卫星的信号的载波频率,同时解码来自GPS卫星的信号。
    • 27. 发明申请
    • Polymerizable composition and method for producing (METH) acrylic thermally conductive sheet
    • 可聚合组合物和(METH)丙烯酸导热片的制备方法
    • US20060263619A1
    • 2006-11-23
    • US11432388
    • 2006-05-12
    • Jun IzumiMasayuki Takada
    • Jun IzumiMasayuki Takada
    • B32B27/30B32B29/00
    • C08F20/12B29K2033/08B32B27/08B32B27/20B32B27/26B32B27/308B32B2250/02B32B2250/24B32B2307/302B32B2307/5825B32B2405/00C08F2/44C08F2/46Y10T428/269Y10T428/3188
    • A polymerizable composition containing at least (A) a (meth)acrylic monomer or a partially polymerized material thereof, which is adjusted so that the glass transition temperature of the whole polymer component after polymerization comes to be 20° C. or less, (B) a thermally conductive inorganic filler, (C) a photopolymerization initiator and (D) a thermal polymerization initiator is disclosed. Further, a production method for a (meth)acrylic thermally conductive sheet which is characterized by applying the photopolymerizable composition in a thickness of from 0.5 mm to 10 mm on a support, laminating a protective sheet on the surface of the thus-applied layer, and then subjecting the resultant laminate to light irradiation is disclosed. In the polymerizable composition according to the invention, the (meth)acrylic monomer can be polymerized by light irradiation for a short time even without providing heating, achieving a sufficiently high polymerization ratio. Further, in the production of the thermally conductive sheet by utilizing this polymerizable composition, a semi-transparent paper can be used as a support or a protective sheet so that there is an economical advantage.
    • 含有至少(A)(A)(甲基)丙烯酸单体或其部分聚合材料的可聚合组合物,其被调节为聚合后聚合物成分的玻璃化转变温度为20℃以下(B )导热性无机填料,(C)光聚合引发剂和(D)热聚合引发剂。 另外,作为(甲基)丙烯酸系导热片的制造方法,其特征在于,在支撑体上涂布厚度为0.5mm〜10mm的光聚合性组合物,在保护层的表面上层叠保护片, 并且然后对所得到的层压体进行光照射。 在本发明的聚合性组合物中,即使不进行加热也可以通过光照射短时聚合(甲基)丙烯酸单体,达到充分高的聚合率。 此外,在通过利用该可聚合组合物制造导热片时,半透明纸可以用作支撑体或保护片,从而具有经济的优点。
    • 29. 发明授权
    • Navigation system for vehicle
    • 车辆导航系统
    • US06629035B2
    • 2003-09-30
    • US10187377
    • 2002-07-02
    • Fumio SetoMasayuki TakadaTakuo Ishiwaka
    • Fumio SetoMasayuki TakadaTakuo Ishiwaka
    • G01C2132
    • G08G1/20G08G1/0969
    • A navigation system 2 includes a map-gain timing judging part 15 to calculate a traveling speed the position of a vehicle detected by a GPS unit 13. A moving distance of the vehicle during the renewal of map is calculated by the traveling speed and a renewal time necessary for gaining the map information from the server 11 of a map information delivery apparatus 1. The system 2 further calculates a traveling direction of the vehicle by the position of the vehicle and also calculates a road distance from the present position of the vehicle to the margin of a map on display. When the road distance agrees with moving distance, it is started to gain a new map information from the server. Thus, when the vehicle reaches the margin of the map on display, the renewal of the map information is completed.
    • 导航系统2包括地图增益定时判定部15,计算由GPS单元13检测到的车辆的位置的行驶速度。在地图更新期间车辆的移动距离由行驶速度和更新计算 从地图信息传送装置1的服务器11获取地图信息所需的时间。系统2还根据车辆的位置来计算车辆的行进方向,并且还计算从车辆的当前位置到道路距离 显示地图的边距。 当道路距离与移动距离一致时,开始从服务器获取新的地图信息。 因此,当车辆到达显示地图的边缘时,完成地图信息的更新。