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    BIO-DEGRADABLE/ ABSORBABLE POLYMER HAVING REDUCED METAL CATALYST CONTENT, AND PROCESS FOR PRODUCTION THEREOF
    1.
    发明申请
    BIO-DEGRADABLE/ ABSORBABLE POLYMER HAVING REDUCED METAL CATALYST CONTENT, AND PROCESS FOR PRODUCTION THEREOF 审中-公开
    具有降低金属催化剂含量的生物降解/可吸收聚合物及其生产方法

    公开(公告)号：US20090171064A1

    公开(公告)日：2009-07-02

    申请号：US12305104

    申请日：2007-06-18

    申请人： Hidetoshi Arimura ,  Yoshitake Takahashi ,  Koji Yamauchi

    发明人： Hidetoshi Arimura ,  Yoshitake Takahashi ,  Koji Yamauchi

    IPC分类号： C08G63/08

    CPC分类号： C08G63/823 ,  A61L17/12 ,  A61L27/18 ,  A61L27/58 ,  A61L31/148 ,  C08G63/08 ,  C08G63/90 ,  C08L67/04

    摘要： The present invention provides a safe biodegradable and bioabsorbable polymer having an extremely low metal catalyst content, while retaining the properties desired for a medical implant or the like; and a process for producing the same. The present invention further provides a method for reducing the content of a metal catalyst in a biodegradable and absorbable polymer that can be applied on an industrial scale. A method for producing a biodegradable and bioabsorbable polymer having a metal catalyst content of less than 1 ppm in terms of a metal comprising the steps of (1) copolymerizing lactide and ε-caprolactone at a molar ratio ranging from 40/60 to 60/40 in the presence of the metal catalyst to produce a copolymer; and (2) washing the copolymer with a mixed solvent comprising acetic acid and isopropanol at a volume ratio ranging from 25/75 to 45/55 at less than 40° C., and drying the copolymer. 13. A method for producing a biodegradable and bioabsorbable polymer having a metal catalyst content of less than 1 ppm in terms of a metal comprising the steps of (1) copolymerizing lactide and ε-caprolactone at a molar ratio ranging from 65/35 to 85/15 in the presence of the metal catalyst to produce a copolymer; and (2) washing the copolymer with a mixed solvent comprising acetic acid and isopropanol at a volume ratio ranging from 45/55 to 55/45 at less than 40° C., and drying the copolymer.

    摘要翻译： 本发明提供一种具有极低金属催化剂含量的安全的可生物降解和生物可吸收的聚合物，同时保持医用植入物等所需的性质; 及其制造方法。 本发明还提供一种降低能够以工业规模应用的生物可降解和可吸收的聚合物中的金属催化剂的含量的方法。 一种制备金属催化剂含量小于1ppm的可生物降解和生物可吸收聚合物的方法，包括以下步骤：（1）以40/60至60/40的摩尔比共聚丙交酯和ε-己内酯 在金属催化剂存在下制备共聚物; 和（2）在低于40℃下，用包含乙酸和异丙醇的混合溶剂以25/75〜45/55的体积比洗涤共聚物，并干燥该共聚物。 13.一种用于生产金属催化剂含量小于1ppm的可生物降解和生物可吸收聚合物的方法，包括以下步骤：（1）以65/35至85的摩尔比共聚丙交酯和ε-己内酯 / 15，在金属催化剂的存在下制备共聚物; 和（2）在低于40℃的体积比为45/55至55/45的范围内用包含乙酸和异丙醇的混合溶剂洗涤共聚物，并干燥该共聚物。

    METHOD FOR PRODUCING POLYLACTIC ACID BLOCK COPOLYMER
    6.
    发明申请
    METHOD FOR PRODUCING POLYLACTIC ACID BLOCK COPOLYMER 有权
    制备聚酸嵌段共聚物的方法

    公开(公告)号：US20130158209A1

    公开(公告)日：2013-06-20

    申请号：US13819199

    申请日：2011-06-27

    申请人： Yoshitake Takahashi ,  Takuma Naotsuka ,  Ken Sudo ,  Hiroyuki Ome

    发明人： Yoshitake Takahashi ,  Takuma Naotsuka ,  Ken Sudo ,  Hiroyuki Ome

    IPC分类号： C08G63/80

    CPC分类号： C08G63/80 ,  C08G63/06 ,  C08G63/08 ,  C08G63/823 ,  C08G63/912 ,  C08G2261/126 ,  C08L67/04 ,  C08L2205/025 ,  C08L2205/05

    摘要： A method of producing a polylactic acid block copolymer constituted of a segment(s) composed of L-lactic acid units and a segment(s) composed of D-lactic acid units, includes obtaining a mixture by mixing poly-L-lactic acid and poly-D-lactic acid one of which has a weight average molecular weight of 60,000 to 300,000 and the other of which has a weight average molecular weight of 10,000 to 50,000, the mixture having a weight average molecular weight of not less than 90,000 and a degree of stereocomplexation (Sc) satisfying: Sc=ΔHh/(ΔHl+ΔHh)×100>60 (wherein ΔHh represents the heat of fusion of stereocomplex crystals (J/g), and ΔHl represents the heat of fusion of crystals of poly-L-lactic acid alone and crystals of poly-D-lactic acid alone (J/g)); and subsequently subjecting the mixture to solid-phase polymerization at a temperature lower than the melting point of the mixture.

    摘要翻译： 由L-乳酸单元构成的链段和由D-乳酸单元构成的链段构成的聚乳酸嵌段共聚物的制造方法包括：将聚-L-乳酸和 聚D-乳酸的重均分子量为60000〜300000，另一个重均分子量为10,000〜50,000，该重均分子量不小于90,000， 立方复合度（Sc）满足：Sc = DeltaHh /（DeltaH1 +ΔHh）×100> 60（其中DeltaHh表示立体络合物晶体的熔化热（J / g），ΔH1表示聚 - 单独使用L-乳酸和单独的聚-D-乳酸晶体（J / g））; 然后在比混合物的熔点低的温度下使混合物进行固相聚合。

    Electronic device
    9.
    发明授权
    Electronic device 失效
    电子设备

    公开(公告)号：US07310236B2

    公开(公告)日：2007-12-18

    申请号：US10888290

    申请日：2004-07-09

    申请人： Yoshitake Takahashi ,  Yoshihisa Tsuchida ,  Masayoshi Morikawa

    发明人： Yoshitake Takahashi ,  Yoshihisa Tsuchida ,  Masayoshi Morikawa

    IPC分类号： H05K5/00

    CPC分类号： H05K9/009 ,  H01B1/24 ,  H04N5/2252

    摘要： A casing that has an electronic component housed therein has a conductive layer made of a mixture of carbon fibers and a thermoplastic resin and an insulating layer where only the thermoplastic resin is exposed on a surface of the conductive layer. The casing prevents leakage of unwanted electromagnetic waves from inside, is not affected by external electromagnetic waves, has small thickness, light weight, high strength and high rigidity, and has excellent contactability with a coating.

    摘要翻译： 具有容纳在其中的电子部件的壳体具有由碳纤维和热塑性树脂的混合物构成的导电层和仅在导电层的表面上露出热塑性树脂的绝缘层。 外壳防止外部电磁波的泄漏，不受外部电磁波的影响，厚度小，重量轻，强度高，刚性高，与涂层的接触性优异。

    Camera apparatus
    10.
    发明授权
    Camera apparatus 失效
    相机设备

    公开(公告)号：US06925254B2

    公开(公告)日：2005-08-02

    申请号：US10633178

    申请日：2003-08-01

    申请人： Seiichi Kato ,  Takashi Ikenaga ,  Keikaku Fukuoka ,  Yoshitake Takahashi

    发明人： Seiichi Kato ,  Takashi Ikenaga ,  Keikaku Fukuoka ,  Yoshitake Takahashi

    IPC分类号： H04N5/225 ,  H04N101/00 ,  G03B13/02 ,  G03B15/03 ,  G03B17/04

    CPC分类号： H04N5/2256 ,  H04N5/2251

    摘要： The camera apparatus comprises a camera-body portion 1; a display pane 2 attached to the camera-body 1 as an outwardly fixing type with freely rotary operation; and a lens block 5 provided at the upper portion of the camera-body 1 and having a pop-up portion rotatable between a stored position within the camera-body 1 and a pop-up position by making a support-axis 14 as a support, wherein the lens block 5 is housed within the camera-body 1 when the camera is not in a taking-picture condition such that the lens surface protected by the outer body and lens block 5 is made up be a pop-up condition with an angle of a predetermined elevation-angle relative to the camera-body 1 when the camera is in a taking-picture condition.

    摘要翻译： 相机装置包括相机主体部分1; 显示面板2，其以自由旋转操作的向外固定型的方式附接到相机主体1; 以及设置在照相机主体1的上部并且具有可在相机主体1内的存储位置和弹出位置之间旋转的弹出部分的透镜块5，通过使支撑轴14作为支撑件 其中，当照相机不处于拍摄状态时，透镜块5被容纳在相机主体1内，使得由外部主体和透镜块5保护的透镜表面被构成为弹出状态 当照相机处于拍摄状态时相对于照相机主体1的预定仰角的角度。