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1. 发明授权

US5279856A Hydrophilic porous membrane, method of manufacturing the same and liquid filter using same 失效
标题翻译：亲水性多孔膜，其制造方法和使用其的液体过滤器
公开(公告)号：US5279856A
公开(公告)日：1994-01-18
申请号：US996158
申请日：1992-12-23
申请人： Noriyuki Koyama , Shinsuke Yokomachi , Yasushi Nemoto , Makoto Ohnishi
发明人： Noriyuki Koyama , Shinsuke Yokomachi , Yasushi Nemoto , Makoto Ohnishi
IPC分类号： B01D67/00
CPC分类号： B01D67/0088 , B01D67/0093
摘要： A hydrophilic porous membrane is obtained by covering porous membrane substrate with a non-ionic, amino-acid-based or non-ionic fluorine-based surface active agent. For the covering, the porous membrane substrate is immersed in a solution containing the surface active agent and then drying the membrane substrate. A different hydrophilic porous membrane is obtained by providing the surfaces of a porous membrane substrate and inner pore surfaces with a polar group and then covering the membrane substrate with a hydrophilic polymer film. For this covering, after introduction of the polar group to the surfaces of the porous membrane substrate and inner pore surfaces, the membrane substrate is immersed in a solution containing a hydrophilic substance and then dried. In a liquid filter using any of these hydrophilic porous membrane the porous membrane is disposed in a housing such as to divide the housing inner space into two sub-spaces respectively communicating with a liquid inlet and a filtrate outlet provided on the housing.
摘要翻译：通过用非离子，氨基酸或非离子的氟基表面活性剂覆盖多孔膜基底来获得亲水性多孔膜。对于覆盖物，将多孔膜基材浸渍在含有表面活性剂的溶液中，然后干燥膜基材。通过使多孔膜基材的表面和内孔表面具有极性基团，然后用亲水性聚合物膜覆盖膜基材，获得不同的亲水性多孔膜。对于该覆盖物，在将极性基团引入到多孔膜基材和内孔表面的表面之后，将膜基材浸渍在含有亲水性物质的溶液中，然后干燥。在使用任何这些亲水性多孔膜的液体过滤器中，多孔膜设置在壳体中，以将壳体内部空间分成两个分别与液体入口和设置在壳体上的滤液出口连通的子空间。

2. 发明授权

US4965291A Method of manufacturing porous membrane and porous membrane manufactured by the same method 失效
标题翻译：通过相同的方法制造多孔膜和多孔膜的方法
公开(公告)号：US4965291A
公开(公告)日：1990-10-23
申请号：US331342
申请日：1989-03-31
申请人： Hideaki Kitoh , Yukio Seita , Noriyuki Koyama , Shinsuke Yokomachi
发明人： Hideaki Kitoh , Yukio Seita , Noriyuki Koyama , Shinsuke Yokomachi
IPC分类号： B01D67/00 , B01D71/34 , C08J3/09 , C08J9/28
CPC分类号： C08J9/28 , B01D67/0011 , B01D71/34 , C08J3/091 , B01D2323/08 , B01D2323/10 , B01D2323/12 , C08J2327/16
摘要： A method of manufacturing a porous membrane by dissolving vinylidene fluoride polymer in a good solvent such as acetone and then causing solidification of the resultant solution in a non-solvent. The dissolution of the vinylidene fluoride polymer in the solvent is done in a predetermined pressure condition, namely 0.1 kg/cm.sup.2, preferably in a range of 0.5 to 5.0 kg/cm.sup.2.

3. 发明授权

US5120440A Hydrophilic porous membrane and process for preparing the same 失效
标题翻译：疏水多孔膜及其制备方法
公开(公告)号：US5120440A
公开(公告)日：1992-06-09
申请号：US523027
申请日：1990-05-14
申请人： Yasushi Nemoto , Shinsuke Yokomachi , Hideaki Kito
发明人： Yasushi Nemoto , Shinsuke Yokomachi , Hideaki Kito
IPC分类号： A61M1/34 , A61M1/22 , B01D67/00 , B01D69/02 , B01D71/34 , B01D71/76 , C08J3/09 , C08J9/40
CPC分类号： B01D67/0088 , C08J3/09
摘要： There is disclosed a hydrophilic porous membrane in which a mixture composed of a surfactant, a hydrophilic polymer which is insoluble to water and alcohol, and a water soluble polymer is retained on the surface of a hydrophobic porous membrane material and/or at inner surface of pores and the surfactant is retained by the hydrophilic polymer.By taking the above constitution, a hydrophilic porous membrane which is restrained in dissolution and generation of foaming and is excellent in safety can be obtained.

4. 外观设计

USD333348S Anesthesia solution filter 失效
公开(公告)号：USD333348S
公开(公告)日：1993-02-16
申请号：US556792
申请日：1990-07-20
申请人： Shinsuke Yokomachi
设计人： Shinsuke Yokomachi

5. 发明授权

US5221474A Transfusion filtering device 失效
标题翻译：传输过滤器
公开(公告)号：US5221474A
公开(公告)日：1993-06-22
申请号：US813360
申请日：1991-12-24
申请人： Osamu Yokono , Shinsuke Yokomachi
发明人： Osamu Yokono , Shinsuke Yokomachi
IPC分类号： A61M5/36 , A61M5/165 , B01D63/02 , B01D63/04
CPC分类号： B01D19/0031 , A61M5/165 , B01D63/043 , A61M2005/1655 , A61M2205/7527 , A61M2205/7536 , A61M5/38 , A61M5/385 , B01D2311/2653 , B01D2313/16
摘要： A transfusion filtering device for preventing foreign matters from entering into a human body. This transfusion fiber comprises a cylindrical housing, hydrophilic porous hollow fibers disposed in the housing in parallel with the axis of the housing, and hydrophobic porous hollow fibers disposed in the housing along the inner wall of the housing, the upper ends of the hydrophobic porous hollow fibers being exposed to the outer atmosphere so as to discharge air accumulated in the housing.

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