Electro-optical semiconductor device and a method of emitting light
    3.
    发明授权
    Electro-optical semiconductor device and a method of emitting light 失效
    电光半导体器件和发光的方法

    公开(公告)号:US4821274A

    公开(公告)日:1989-04-11

    申请号:US887084

    申请日:1986-06-27

    摘要: An electro-optical device using a doped semiconductor medium under conditions of controlled excitation energy. The semiconductor medium is a doped binary, ternary or quaternary semiconductor alloy, namely, an III-V semiconductor alloy having at least one element from column III, and at least one element from column V of the Periodic Table, and doped with vanadium, titanium or niobium. Such an electro-optical device may be made into a laser or into a light emitting diode.

    摘要翻译: PCT No.PCT / FR85 / 00311 Sec。 371日期1986年6月27日第 102(e)日期1986年6月27日PCT提交1985年11月5日PCT公布。 出版物WO86 / 03059 日期:1986年5月22日。在受控激发能的条件下使用掺杂半导体介质的电光器件。 半导体介质是掺杂的二元,三元或四元半导体合金,即具有至少一个来自第III列的元素的III-V半导体合金和来自元素周期表第V列的至少一个元素,并掺杂有钒,钛 或铌。 这样的电光器件可以制成激光器或制成发光二极管。

    Production of articles by rotomolding
    4.
    发明申请
    Production of articles by rotomolding 审中-公开
    通过滚塑生产制品

    公开(公告)号:US20050051926A1

    公开(公告)日:2005-03-10

    申请号:US10875552

    申请日:2004-11-16

    IPC分类号: B29C31/00 B29C41/04

    摘要: The present invention relates to a process for producing polyamide articles by rotomolding and to articles manufactured by this process. The process according to the invention includes in particular a step in which a polyamide-based powder is introduced into a rotomolding mold. The articles obtained by rotomolding may be hollow parts without welds, such as, for example, articles selected from the group consisting of containers, vats, flasks, cisterns, cases, boxes, tanks, bumpers, seats and bodywork parts.

    摘要翻译: 本发明涉及通过滚塑法制造聚酰胺制品的方法以及通过该方法制造的制品。 根据本发明的方法特别包括将聚酰胺基粉末引入滚塑模具中的步骤。 通过滚塑获得的制品可以是没有焊接的中空部件,例如选自容器,大桶,烧瓶,水箱,箱子,箱子,罐,保险杠,座椅和车身部件的物品。