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    • 22. 发明授权
    • Optical fiber having a large positive dispersion
    • 具有大的正色散的光纤
    • US06614976B2
    • 2003-09-02
    • US10036372
    • 2002-01-07
    • Takatoshi KatoKazuhiro OkamotoMitsuomi HadaShinjiro HagiharaMorio WatanabeKohei Kobayashi
    • Takatoshi KatoKazuhiro OkamotoMitsuomi HadaShinjiro HagiharaMorio WatanabeKohei Kobayashi
    • G02B618
    • G02B6/02014G02B6/02266G02B6/0283G02B6/03611G02B6/03627
    • The present invention relates to an optical fiber having a large positive dispersion in a wavelength band of 1.55 &mgr;m in order to compensate for a negative dispersion inherent in an NZ-DSF in the wavelength band of 1.55 &mgr;m. This optical fiber comprises a depressed cladding structure constituted by a core region; an inner cladding, disposed at the outer periphery of the core region, having a lower refractive index; and an outer cladding having a higher refractive index. In this optical fiber, the relative refractive index difference of the core region with respect to the outer cladding is at least 0.30% but not greater than 0.50%, and the relative refractive index difference of the inner cladding with respect to the outer cladding is at least −0.50% but not greater than −0.02%. Also, the optical fiber has a dispersion greater than 18 ps/nm/km at a wavelength of 1.55 &mgr;m, and an effective cross-sectional area Aeff of at least 70 &mgr;m2 at the wavelength of 1.55 &mgr;m.
    • 本发明涉及一种在1.55μm波长带中具有大的正色散的光纤,以便补偿N​​Z-DSF在1.55μm波长带内固有的负色散。 该光纤包括由芯区域构成的凹陷包层结构; 设置在芯区域的外周的具有较低折射率的内包层; 以及具有较高折射率的外包层。 在该光纤中,芯区域相对于外包层的相对折射率差为0.30%以上且0.50%以下,内包层相对于外包层的相对折射率差为 至少-0.50%但不大于-0.02%。 此外,光纤的波长为1.55μm时的色散大于18ps / nm / km,波长1.55μm的有效截面积Aeff为70mum2以上。
    • 27. 发明授权
    • Composition for coating and molded product using the same
    • 用于涂料的组合物和使用其的模塑制品
    • US08519052B2
    • 2013-08-27
    • US13696842
    • 2011-04-04
    • Kazuhiro OkamotoKazuya Egawa
    • Kazuhiro OkamotoKazuya Egawa
    • C08G63/48
    • C09D109/10C08L23/0869C08L55/02C08L67/00C08L2205/03
    • The present invention provides a resin composition for coating which is capable of exhibiting an excellent balance between coatability, impact resistance, moldability and chemical resistance, and capable of attaining a good coating appearance, for example, even when a large-size molded product is coated. The resin composition for coating according to the present invention comprises 84.9 to 98.9 parts by mass of the below-mentioned rubber-reinforced vinyl-based resin [A], 1 to 8 parts by mass of a polyester resin [B] and 0.1 to 7.1 parts by mass of a copolymer [C] of ethylene, a (meth)acrylic acid ester and carbon monoxide (with the proviso that a total amount of the components [A], [B] and [C] ([A] +[B] +[C]) is 100 parts by mass): [Rubber-reinforced vinyl-based resin [A]]A rubber-reinforced vinyl-based resin comprising a rubber-reinforced copolymer resin [A1] obtained by polymerizing a vinyl-based monomer [b1] in the presence of a rubber polymer [a], or comprising the rubber-reinforced copolymer resin [A1] obtained by polymerizing the vinyl-based monomer [b1] in the presence of the rubber polymer [a], and a (co)polymer [A2] of a vinyl-based monomer [b2].
    • 本发明提供一种涂布用树脂组合物,其能够在涂布性,耐冲击性,成型性和耐化学性之间表现出优异的平衡,并且即使当涂布大尺寸模制品时也能获得良好的涂层外观 。 根据本发明的涂料用树脂组合物含有下述橡胶强化乙烯基类树脂[A] 84.9〜98.9质量份,聚酯树脂[B] 1〜8质量份,0.1〜7.1质量份 乙烯,(甲基)丙烯酸酯和一氧化碳的共聚物[C]质量份(条件是组分[A],[B]和[C]([A] + [ B] + [C])为100质量份):[橡胶强化乙烯基系树脂[A]]:橡胶强化乙烯系树脂,其含有通过使乙烯基系树脂聚合而得到的橡胶增强共聚物树脂[ 在橡胶聚合物[a]的存在下,或者包含在橡胶聚合物[a]的存在下聚合乙烯基类单体[b1]而获得的橡胶增强共聚物树脂[A1],以及 乙烯基类单体[b2]的(共)聚合物[A2]。
    • 30. 发明授权
    • VoIP gateway apparatus, and method for controlling call-in/call-out in VoIP gateway apparatus
    • VoIP网关装置,以及用于控制VoIP网关装置中的呼入/呼出的方法
    • US07764666B2
    • 2010-07-27
    • US10582663
    • 2004-12-17
    • Noboru YamadaKazumasa AzumaKazuhiro Okamoto
    • Noboru YamadaKazumasa AzumaKazuhiro Okamoto
    • H04R25/00
    • H04L65/104H04L29/06027H04L29/12094H04L29/1216H04L61/1529H04L61/157H04L65/1006H04L65/103H04M7/1205
    • A VoIP gateway apparatus is used to provide an IP centrex service to accommodated devices. The VoIP gateway apparatus (1) assigns, to a call originated from an accommodated device (PBX 2), a telephone number for which the number of simultaneous call connections has not reached a simultaneous connection tolerance number, and sends the call to an IP centrex network (5) with the assigned telephone number used as a calling number. The VoIP gateway apparatus (1) includes a number-of-calls management part (105) and a SIP processing part (104). The number-of-calls management part (105) manages the number of the current simultaneous call connections for each of the telephone numbers as assigned to the apparatus. When a call is received from an accommodated device, a SIP processing part (104) selects, among the telephone numbers as assigned to the apparatus, a telephone number, for which the number of the current simultaneous call connections as managed by the number-of-calls management part (105) is smaller than the predetermined simultaneous connection tolerance number, and then transmits, to the IP centrex network (5), a SIP packet of a call control message to which the selected telephone number has been added as the calling number.
    • VoIP网关设备用于向受控设备提供IP中心服务。 VoIP网关装置(1)向从容纳设备(PBX2)发起的呼叫分配同时呼叫连接数尚未达到同时连接公差数的电话号码,并将呼叫发送到IP中心 网络(5),其中分配的电话号码用作主叫号码。 VoIP网关装置(1)包括号码呼叫管理部(105)和SIP处理部(104)。 呼叫号码管理部分(105)管理分配给设备的每个电话号码的当前同时呼叫连接的号码。 当从被容纳的设备接收到呼叫时,SIP处理部分(104)在分配给该设备的电话号码中选择一个电话号码,该电话号码由多个 - 呼叫管理部分(105)小于预定的同时连接公差数,然后向所述IP中心网络(5)发送已经添加了所选择的电话号码的呼叫控制消息的SIP分组作为呼叫 数。