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101. 发明专利

JPH0529614B2 失效
公开(公告)号：JPH0529614B2
公开(公告)日：1993-05-06
申请号：JP12621782
申请日：1982-07-20
申请人： HITACHI CABLE
发明人： KAJIOKA HIROSHI , TOKUNAGA TOSHIHIDE , NIIZAWA MASAHARU
IPC分类号： C03B37/012 , C03B37/075 , G02B6/024

102. 发明专利

JPH04367522A PRODUCTION OF SUBSTRATE EQUIPPED WITH QUARTZ GLASS FILM 失效
公开(公告)号：JPH04367522A
公开(公告)日：1992-12-18
申请号：JP14304591
申请日：1991-06-14
申请人： HITACHI CABLE
发明人： OKANO HIROAKI , TOKUNAGA TOSHIHIDE , OGOSHI MIKIO
IPC分类号： C03B8/02 , C03B19/12 , C03C17/02
摘要： PURPOSE:To make it possible to form a glass film having >=5mum thickness. CONSTITUTION:A liquid 4 insoluble in water and having a specific gravity larger than that of water is put in a vessel 1 and a glass substrate 5 is allowed to float on the liquid 4 and simultaneously water 8 is charged and a metal alkoxide solution 9 diluted with the a solvent is put on the water 4 to form a wet gel film 10 on the interface between the metal alkoxide solution 9 and water 8 and then water in the vessel 1 is discharged and the get film 10 is allowed to stand on a substrate 5 floated on the liquid 4 and the gel film 8 is dried together with the substrate 5 and sintered to produce the objective substrate.

103. 发明专利

JPH04362033A PRODUCTION OF SUBSTRATE PROVIDED WITH QUARTZ GLASS FILM 失效
公开(公告)号：JPH04362033A
公开(公告)日：1992-12-15
申请号：JP13775591
申请日：1991-06-10
申请人： HITACHI CABLE
发明人： OKANO HIROAKI , TOKUNAGA TOSHIHIDE , IMOTO KATSUYUKI
IPC分类号： C03C17/25 , C03B8/02 , C03B19/12 , C03B20/00
摘要： PURPOSE:To provide a substrate furnished with a quartz glass film by which a quartz glass film contg. a dopant and having a uniform thickness of >=5mum is obtained. CONSTITUTION:A soln. 6 of at least one kind of metal alkoxide other than a silicon alkoxide is dripped into a reaction vessel 1 contg. a silicon alkoxide soln. 5 and water 3 to form a wet SiO2 gel film 9 contg. the dopant at the interface between the soln. 5 and water 3. The gel film 9 is then allowed to stand on the substrate 4, dried and then sintered.

104. 发明专利

JPH04295810A COATED OPTICAL FIBER FOR HIGH TEMPERATURE 失效
公开(公告)号：JPH04295810A
公开(公告)日：1992-10-20
申请号：JP6013691
申请日：1991-03-25
申请人： HITACHI CABLE
发明人： KUROSAWA YOSHINORI , TOKUNAGA TOSHIHIDE , OKUBO TAKESHI
IPC分类号： C03C25/10 , G02B6/44
摘要： PURPOSE:To prevent the deterioration of transmission characteristics and optical fiber strength even at a high temp. by inserting an optical fiber coated with a coating layer made of an org. metallic polymer into a heat resistant pipe and packing an inert gas into this pipe. CONSTITUTION:The optical fiber 2 is coated with the polymer coating layer 3 made of the org. metallic polymer and is inserted into the heat resistant pipe 4. The inert gas is packed into the pipe 4 to attain an oxygenfree state. The oxygenfree state is maintained in the pipe 4 even at a high temp. in this way and, therefore, the org. metallic polymer is substantially not thermally oxidized and decomposed any more. The deterioration of the org. metallic polymer is substantially prevented in this way and the generation of the crack in the polymer coating layer 3 arising from this deterioration and the increase in the transmission loss by the shrinkage and hydrogen of the coating material are obviated. A carbon layer may be provided between the surface of such optical fiber 2 and the polymer coating layer and polytitanol carbosilane is preferably used as the org. metallic polymer.

105. 发明专利

JPH04198752A MANUFACTURING DEVICE OF CAPILLARY COLUMN FOR GAS CHROMATOGRAPHY 失效
公开(公告)号：JPH04198752A
公开(公告)日：1992-07-20
申请号：JP32824090
申请日：1990-11-28
申请人： HITACHI CABLE , HITACHI NAKA SEIKI KK
发明人： OKANO HIROAKI , TOKUNAGA TOSHIHIDE , OSUGA KAZUSHI , NARISHIMA KOICHI , NAGAI HISAAKI
IPC分类号： G01N30/56
摘要： PURPOSE:To realize a high-resolution device useful for analyzing a polar compound by providing a gas discharge port discharging the gas to the outside at a preset flow quantity at the end section near the connector of a gas guide pipe. CONSTITUTION:In a device constituted of an inert gas feed source 5, a constant- temperature oven 2 storing a capillary 1, and a gas guide pipe 3 having a connector 4 at one end and connected to the inert gas feed source 5 at the other end, the inert gas is fed to the capillary 1, and the needle valve 8 of a gas discharge pipe 7 provided at the end section near the connector 4 of the gas guide pipe 3 is adjusted to discharge a preset quantity of the inert gas to the outside. The oxygen in the air left in the gas guide pipe 3 before the capillary 1 is connected is discharged to the outside together with the inert gas, the effect of the high-temperature treatment for fixing the liquid phase is prevented, and a high-resolution capillary column for gas chromatography can be manufactured.

106. 发明专利

JPH0436102B2 失效
公开(公告)号：JPH0436102B2
公开(公告)日：1992-06-15
申请号：JP22701085
申请日：1985-10-14
申请人： HITACHI CABLE
发明人： TOKUNAGA TOSHIHIDE , FUJITA TSUNEYOSHI
IPC分类号： G02B6/00 , C03B37/014 , C03B37/018

107. 发明专利

JPH04156504A HEAT-RESISTANT OPTICAL FIBER 失效
公开(公告)号：JPH04156504A
公开(公告)日：1992-05-29
申请号：JP28267690
申请日：1990-10-19
申请人： HITACHI CABLE
发明人： TOKUNAGA TOSHIHIDE , ITO RYOICHI
IPC分类号： G02B6/44
摘要： PURPOSE:To obtain a heat-resistant optical fiber with the stable strength and transmission characteristic for a long period in high-temperature pressurized steam or an acid or alkaline liquid by coating a polyimide resin layer on the optical fiber coated with a carbon layer, and coating a fluororesin layer on the outside. CONSTITUTION:An optical fiber base material with the wavelength 1.3mum band is heated and extended to form a carbon layer 2 by the heat CVD method with an on-line system. The thickness of the layer 2 is set to 500Angstrom . A polyimide layer 3 with the thickness 15mum is coated on an optical fiber wire-drawn with a coating die and the like, and it is baked and hardened in an electric furnace and the like and wound on a drum. Polytetra fluororesin (PTFE) or ethylene fluoroalkyl ether copolymer (PFA) serving as a fluororesin layer 4 is extrusion- coated, and the outer diameter is set to 0.6mm.

108. 发明专利

JPH0477663A MANUFACTURING METHOD OF JOINT PIPE FOR QUARTZ CAPILLARY COLUMN 失效
公开(公告)号：JPH0477663A
公开(公告)日：1992-03-11
申请号：JP19107190
申请日：1990-07-19
申请人： HITACHI CABLE
发明人： TOKUNAGA TOSHIHIDE , OKANO HIROAKI
IPC分类号： G01N30/26 , B01D15/08 , C03C15/00
摘要： PURPOSE:To facilitate the joining of a column having a different diameter with a high reproducibilty of shape and mass producibility by a method wherein a glass tube having a surface coated with paraffin is filled with water and after the tube is immersed into a hydrofluoric acid, the paraffin is removed to perform a treatment of converting the internal surface thereof to silyl conversion. CONSTITUTION:The surface of Pyrex tube 1 is coated with paraffin 2 and filled with water 3. Then, the tube 1 is immersed into a vinyl chloride tank 5 of 10% hydrofluoric acid solution 4. The hydrofluoric acid diffuses gradually into the water 3 filled into the tube 1 while an internal wall of the tube 1 is etched to be tapered. Then, the tube 1 is taken out, washed with water and after it dried, it undergoes a treatment to be converted to silyl. This facilitates the joining of column having difference diameter with high reproduciblity of shape and mass producibility.

109. 发明专利

JPH0465671A PRODUCING DEVICE FOR QUARTZ CAPILLARY COLUMN FOR GAS CHROMATOGRAPHY 失效
公开(公告)号：JPH0465671A
公开(公告)日：1992-03-02
申请号：JP17915790
申请日：1990-07-05
申请人： HITACHI CABLE
发明人： TOKUNAGA TOSHIHIDE , OKANO HIROAKI , OSUGA KAZUSHI , TOKUDA TSUTOMU , OBARA HIROMI , NEMOTO SHIGENORI
IPC分类号： G01N30/60 , C03B23/04 , G01N30/56
摘要： PURPOSE:To produce the quartz capillary column having the thickness of a solid phase uniform in a longitudinal direction at high speed by providing temp. setting means which respectively set the temps. of a delivery thermostatic chamber, reaction chamber and take-up thermostatic chamber at prescribed relations. CONSTITUTION:A quartz capillary 1 in which a polyethylene glycol soln. is packed is wound around a drum 2 and is housed into the air thermostatic chamber 3. The temp. of the air thermostatic chamber 3 is controlled to 20+ or -1 deg.C. The quartz capillary 1 drawn out of the drum 2 is sent into a thermostatic water tank 5. The water tank 5 is set at 70 deg.C. The water 6 in the thermostatic water tank 5 is stirred by a pump 7 and heated by a heater 8. The heater 8 is on-off controlled to maintain the water 6 at a specified temp. by a temp. detector. The capillary 1 passes the inside of the water 6 and is heated from the circumference, by which the solid phase 24 is formed in the capillary 1. The quartz capillary column 1a formed with the solid phase is taken up on the take-up drum 9 in the air thermostatic chamber 10 kept at 80 deg.C.

110. 发明专利

JPH0413966A QUARTZ GLASS CAPILLARY COLUMN 失效
公开(公告)号：JPH0413966A
公开(公告)日：1992-01-17
申请号：JP11798790
申请日：1990-05-07
申请人： HITACHI CABLE , HITACHI NAKA SEIKI KK
发明人： OKANO HIROAKI , TOKUNAGA TOSHIHIDE , SUZUKI NOBUTAKA , ITO RYOICHI , NAGAI HISAAKI
IPC分类号： G01N27/447 , G01N30/60
摘要： PURPOSE:To prevent increase in cost as caused by consumption of a capillary column by providing a solid phase on an internal surface of a part except for near both ends of a quartz glass capillary column. CONSTITUTION:In order to form a solid phase 3 except for a terminal 24 of a quartz glass capillary 1, for example, the quartz glass capillary 1 is filled with a solution of a solid phase 3 forming material over the entire length thereof and a solvent is evaporated at a relatively low temperature by a static method to form a layer of the solid phase 3 forming material over the entire length of the quartz glass capillary 1. Then, the solid phase 3 forming material is crosslinked by heating a part alone to form the solid phase 3 or by irradiating it with an electron beam, gamma rays or the like and the solid phase 3 forming material yet to be crosslinked is eluted by a proper solvent. In the crosslinking by heating, an isolated group forming agent to the solution of the solid phase 3 forming material is added beforehand and heated above a temperature at which the isolated group is generated.

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