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    • 8. 发明授权
    • Process for producing carbon fibers
    • 生产碳纤维的方法
    • US4320107A
    • 1982-03-16
    • US96971
    • 1979-11-23
    • Mikio OyabuKenji FukudaKeiichi Hirata
    • Mikio OyabuKenji FukudaKeiichi Hirata
    • D01F9/15D01F9/14
    • D01F9/15
    • A fibrous carbon is prepared by dissolving coal in a hydrocarbon solvent by heating under hydrogen pressure, by subjecting to melt spinning a solvent-refined coal obtained by successively removing insoluble residues and the solvent from the resultant solution, by making the fiber thus obtained non-fusible, and then by subjecting same to carbonization. The melt spinning may be effected by mixing a highly aromatic bituminous substance with the solvent refined coal. Alternatively, the solvent-refined coal may be pretreated prior to melt spinning by extracting it with a non-aromatic solvent to remove soluble components therefrom.
    • 通过在氢气压力下加热将煤溶解在烃溶剂中,通过将所得到的纤维如此得到的纤维进行熔融纺丝而获得的溶剂精制煤,通过连续地除去不溶残留物和溶剂而得到, 易熔,然后通过使其碳化。 熔融纺丝可以通过将高度芳香的沥青物质与溶剂精炼煤混合来实现。 或者,溶剂精炼的煤可以在熔融纺丝之前通过用非芳族溶剂萃取来预处理以从其中除去可溶性组分。
    • 10. 发明申请
    • MOBILE STATION AND WIRELESS COMMUNICATION METHOD
    • 移动通信和无线通信方法
    • US20090325574A1
    • 2009-12-31
    • US12490566
    • 2009-06-24
    • Masaki IzawaKeiichi Hirata
    • Masaki IzawaKeiichi Hirata
    • H04W4/00
    • H04W48/08H04W48/18
    • A mobile station is provided. The mobile station includes: a wireless communication unit which establishes wireless communication with a base station; a storage unit which stores a roaming list used when roaming to a mobile communication network other than a specific mobile communication network; a communication network selecting unit which selects a mobile communication network with which the mobile station is capable of communicating wirelessly, by using the roaming list; and an update unit which requests update of the roaming list through the wireless communication unit at a time of starting the mobile station, and updates the roaming list stored in the storage unit if changed.
    • 提供移动台。 移动台包括:无线通信单元,其与基站建立无线通信; 存储单元,其存储当漫游到除了特定移动通信网络之外的移动通信网络时使用的漫游列表; 通过使用漫游列表,选择移动台能够无线通信的移动通信网络的通信网络选择单元; 以及更新单元,其在启动移动台时通过无线通信单元请求更新漫游列表,并且如果改变则更新存储在存储单元中的漫游列表。