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81. 发明专利

JPH04198753A CAPILLARY COLUMN FOR GAS CHROMATOGRAPHY AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH04198753A
公开(公告)日：1992-07-20
申请号：JP32824190
申请日：1990-11-28
申请人： HITACHI CABLE , HITACHI NAKA SEIKI KK
发明人： TOKUNAGA TOSHIHIDE , ITO RYOICHI , OKANO HIROAKI , NAGAI HISAAKI
IPC分类号： G01N30/56 , B01D15/08
摘要： PURPOSE:To realize a capillary column with excellent reproducibility by providing a stationary phase made of squalane on the inner face of a quartz glass capillary silyl-treated with a silane compound expressed by the preset formula. CONSTITUTION:A surface treatment layer 2 made of a silane compound is applied on the inner face of a quartz glass capillary 1 silyl-treated with a silane compound expressed by the formula I or the formula II, a stationary phase 3 made of bridged squalane is provided on it, and a polyimide protective film 4 is provided on the outer face, where R1, R2 indicate a low-grade alkyl group respectively, they may be the same or differ, R3 indicates an alkyl group with the carbon atom number 15-25, and X indicates halogen atom or a methoxy group or an ethoxy group. The stationary phase 3 made of squalane can be uniformly formed, and a capillary column for gas chromatography with excellent reproducibility can be realized.

82. 发明专利

JPH04171407A FUSION DRAWING TYPE OPTICAL FIBER COUPLER 失效
公开(公告)号：JPH04171407A
公开(公告)日：1992-06-18
申请号：JP29809990
申请日：1990-11-02
申请人： HITACHI CABLE
发明人： NAKAMURA MASASHI , ITO RYOICHI
IPC分类号： G02B6/28
摘要： PURPOSE:To obtain an optical fiber coupler stable in characteristics and mechanical strength by coating a coating removed portion including a fusion drawing portion with carbon. CONSTITUTION:A coating removed portion including the taper area 2 of a fusion drawing type optical fiber coupler is inserted into a reactive tube 3, and an inactive gas atmosphere, which is resourced from polycyclic aromatic oil made of polycyclic aromatic mixture, is formed inside the reactive tube 3. By winding a small ring heater 4 around the outer periphery of the reactive tube 3, flowing electric current in heater 4 and heating the inside of the reactive tube 3, a carbon coating film 23 is formed on the coating removed portion including the taper area 2 of the coupler. It is thus possible to obtain an optical fiber coupler excellent in mechanical strength and stable in characteristics.

83. 发明专利

JPH03135761A QUARTZ GLASS CAPILLARY COLUMN 失效
公开(公告)号：JPH03135761A
公开(公告)日：1991-06-10
申请号：JP27321989
申请日：1989-10-20
申请人： HITACHI CABLE , HITACHI NAKA SEIKI KK
发明人： OKANO HIROAKI , KUROSAWA YOSHINORI , TOKUNAGA TOSHIHIDE , ITO RYOICHI , SUZUKI NOBUTAKA , NAGAI HISAAKI
IPC分类号： G01N30/60 , B01D15/08
摘要： PURPOSE:To obtain the quartz glass capillary column which does not easily break during handling even in the case of processing for a long period of time at a high temp. or repetitive use by coating the outside surface of the quartz glass capillary column with a carbon film and further coating the surface thereof with a metallic film. CONSTITUTION:An anhydrous synthesized quartz glass tube is softened by a drawing furnace kept at about 2,000 deg.C and is stretched to the quartz glass capillary 1 of a prescribed inside diameter and outside diameter. The capillary 1 is fed into a quartz muffle in a heating furnace kept at about 1,200 deg.C right after the stretching and gaseous nitrogen flow contg. benzene is supplied into the furnace to thermally decompose the benzene and to form the carbon film 4 on the surface of the capillary 1. Further, the capillary is passed in molten aluminum to form the metallic film 5 thereon. The capillary is cut to a prescribed length and a thin-film stationary phase 2 of polydimethyl siloxane is formed on the inside surface. The metal may be Zn, Ti, Sn or Bi. Then, the carbon film 4 acts as a buffer layer and the generation of partial deviation and peeling at the boundary with the quartz glass do not arise even if a heat history is applied thereto. The effect of the protective film against the breakage is thus maintained and the excellent heat resistance is exhibited.

84. 发明专利

JPH0136621B2 失效
公开(公告)号：JPH0136621B2
公开(公告)日：1989-08-01
申请号：JP3844181
申请日：1981-03-17
申请人： HITACHI CABLE
发明人： ITO RYOICHI , SHIMAZAKI YUKIO
IPC分类号： G03C1/74 , G03F7/16 , G03G15/20 , H05K3/38

85. 发明专利

JPS6410205A CRYOGENIC OPTICAL FIBER 失效
公开(公告)号：JPS6410205A
公开(公告)日：1989-01-13
申请号：JP16516087
申请日：1987-07-03
申请人： HITACHI CABLE
发明人： TOKUNAGA TOSHIHIDE , ITO RYOICHI
IPC分类号： C03C25/10 , G02B6/44
摘要： PURPOSE:To obtain an optical fiber which has low loss even in the cryogenic range of liquid N2 or liquid He by covering the fiber with resin whose glass dislocation temperature is not within an in-use temperature range. CONSTITUTION:The outer peripheral part of the fiber is covered with the resin whose glass dislocation temperature is not within the in-use temperature range. For example, a coating layer 4 of 62mum in thickness is formed on the outer peripheral part of the glass fiber 3 consisting of the core 1 of 50mum in thickness and the clad 2 of 125mum in external diameter. This coating layer 4 is formed of acrylic resin with 115 deg.C glass dislocation temperature. Consequently, the cryogenic optical fiber is obtained which has superior transmission characteristics even in the cryogenic range of liquid N2 or liquid He.

86. 发明专利

JPS6367161B2 失效
公开(公告)号：JPS6367161B2
公开(公告)日：1988-12-23
申请号：JP4682683
申请日：1983-03-18
申请人： HITACHI CABLE
发明人： ITO RYOICHI , SHIMAZAKI YUKIO
IPC分类号： G02B1/04 , C03C25/10 , G02B6/00

87. 发明专利

JPS629137B2 失效
公开(公告)号：JPS629137B2
公开(公告)日：1987-02-26
申请号：JP2633579
申请日：1979-03-06
申请人： HITACHI CABLE
发明人： SHIMAZAKI YUKIO , ITO RYOICHI , SHIINA TOSHIO
IPC分类号： C08L23/00 , C08K5/00 , C08K5/14 , C08K5/36 , C08K5/37 , C08L7/00 , C08L21/00 , C08L23/02 , C08L23/04 , C08L33/00 , C08L33/02 , C08L101/00 , H01B3/44

88. 发明专利

JPS627646B2 失效
公开(公告)号：JPS627646B2
公开(公告)日：1987-02-18
申请号：JP20321581
申请日：1981-12-16
申请人： HITACHI CABLE
发明人： SATO MINORU , SHIMIZU YASUTOMI , TAKASHIMA TAKAJI , ITO RYOICHI
IPC分类号： H01B13/22

89. 发明专利

JPS6157907A Method for arranging strands for image guide 失效
标题翻译：安装图像指南的方法
公开(公告)号：JPS6157907A
公开(公告)日：1986-03-25
申请号：JP18016384
申请日：1984-08-29
申请人： Hitachi Cable Ltd
发明人： ITO RYOICHI , TERAOKA TATSUO , SAEKI MASAHIKO
IPC分类号： G02B6/04 , C03B37/012 , G02B6/06
摘要： PURPOSE: To obtain an image guide almost free from defects in quality by densely arranging plural quartz fiber strands for an image guide in a quartz pipe filled with a liq. consisting of carbon and fluorine atoms.
CONSTITUTION: Quartz fiber strands each consisting of a pure quartz core and a quartz clad contg. boron or fluorine as a dopant are densely arranged in a quartz pipe. At this time, the quartz pipe is filled with a liq. consisting of carbon and fluorine atoms, and ultrasonic vibration is applied. The resulting quartz pipe contg. the arranged quartz fiber strans is vacuum-dried, drawn by means of a drawer, and coated with an ultraviolet-curing material contg. an epoxy acrylate oligomer as the principal component to obtain an image guide.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了获得几乎没有质量缺陷的图像引导件，通过在填充有液体的石英管中密集地布置用于图像引导件的多个石英纤维线。由碳和氟原子组成。构成：石英纤维束各自由纯石英芯和石英包层组成。作为掺杂剂的硼或氟密集地排列在石英管中。此时，石英管充满液体。由碳和氟原子组成，并且施加超声波振动。所得石英管将布置的石英纤维干燥物抽真空干燥，借助抽屉抽出，并用紫外线固化材料涂覆。环氧丙烯酸酯低聚物作为主要成分，以获得图像引导。

90. 发明专利

JPS6055931B2 失效
公开(公告)号：JPS6055931B2
公开(公告)日：1985-12-07
申请号：JP10019478
申请日：1978-08-17
申请人： HITACHI CABLE
发明人： ITO RYOICHI , YOSHIDA KOICHI
IPC分类号： H01B7/36

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