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1. 发明专利

GB2265110B Making an electrical tape cable 未知
公开(公告)号：GB2265110B
公开(公告)日：1995-10-18
申请号：GB9303600
申请日：1993-02-23
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： TOKORO TOSHIO , SHIMIZU OSAMU , YAMAGUCHI YASUNORI
IPC分类号： H01B7/08 , H01B13/00 , H01B13/10 , B32B31/00
摘要： An apparatus for making an electrical tape cable by bonding insulating plastic tapes (3, 4) to either side of an array (1) of conductors aligned in parallel comprises a pair of primary bonding rollers (50, 60) which temporarily bonds the conductors (1) with the plastic tapes (3, 4) and a pair of secondary bonding rollers (48, 58) which permanently bonds them.

2. 发明专利

GB2265110A MAKING ELECTRICAL TAPE CABLE 未知
公开(公告)号：GB2265110A
公开(公告)日：1993-09-22
申请号：GB9303600
申请日：1993-02-23
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： TOKORO TOSHIO , SHIMIZU OSAMU , YAMAGUCHI YASUNORI
IPC分类号： H01B7/08 , H01B13/00
摘要： An apparatus for making an electrical tape cable by bonding insulating plastic tapes (3, 4) to either side of an array (1) of conductors aligned in parallel comprises a pair of primary bonding rollers (50, 60) which temporarily bonds the conductors (1) with the plastic tapes (3, 4) and a pair of secondary bonding rollers (48, 58) which permanently bonds them.

3. 发明专利

JPH04309537A CONTROL OF EXPANSION RATIO OF FOAMED POLYOLEFIN 失效
公开(公告)号：JPH04309537A
公开(公告)日：1992-11-02
申请号：JP7294991
申请日：1991-04-05
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： CHIBA MINORU , SHIMIZU OSAMU
IPC分类号： B29C48/92 , B29K23/00 , B29K105/04 , B29L23/00 , C08J9/06
摘要： PURPOSE:To control stably the expansion ratio of a foamed polyolefin according to the information on the color which changes with the expansion ratio. CONSTITUTION:A process for producing a foamed polyolefin by heating a composition comprising a polyolefin resin, a blowing agent and an antioxidant to a temperature equal to or higher than the decomposition temperature of the blowing agent, wherein the expansion ratio of the foamed polyolefin is controlled by detecting a change in the color of the composition resulting from the reaction of the blowing agent with the antioxidant. Thus, a foamed polyolefin is stably and continuously formed on a nonconductor core of, e.g. an optical fiber by controlling the expansion ratio according to the information on the color which changes with the expansion ratio and is used as a parameter instead of electrostatic capacity data measured with an electrostatic capacity measurement device placed in a cooling water tank.

4. 发明专利

JPH0317913A MANUFACTURE OF TELECOMMUNICATION CABLE FOAM INSULATED CORE 失效
公开(公告)号：JPH0317913A
公开(公告)日：1991-01-25
申请号：JP15124489
申请日：1989-06-13
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： MURAMATSU YOSHITAKA , SHIMIZU OSAMU
IPC分类号： H01B13/14 , H01B13/00
摘要： PURPOSE:To make the size of a foam small and homogeneous so as to prevent the generation of a pin-hole, to improve insulating feature and to stabilize its characteristic by specifying a ratio of absorbance of wave number 1735cm and of 1300cm at the time of infrared spectroscopic analysis in a non-foaming state of a mixture. CONSTITUTION:A high density polyehylene and an ADCA foaming agent are heated and kneaded at the temperature less than the resolution temperature of the foaming agent, and in a non-foaming state, it is extruded. At this time, heating temperature, kneading time, and an extruding condition are properly adjusted, so as to make a ratio A/B of absorbance A of wave number 1735cm and of absorbance B of wave number 1300cm not less than 5, for an infrared spectroscopic analysis of the obtained mixture. The generation of a pin-hole can be prevented, while insulation resistance ability can be improved, and a telecommunication cable foaming insulating core of stabilized characteristic can thus be manufactured.

5. 发明专利

JPH02229741A METHOD FOR DISCRIMINATING CROSS-LINKING DEGREE OF ULTRAVIOLET CURING RESIN APPLIED ON OPTICAL FIBER 失效
公开(公告)号：JPH02229741A
公开(公告)日：1990-09-12
申请号：JP5086389
申请日：1989-03-02
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： SAMUFUI , CHIBA MINORU , SHIMIZU OSAMU , HOSHINO TOMONORI
IPC分类号： G02B6/44 , C03C25/10
摘要： PURPOSE:To easily discriminate the cross-linking degree of a resin and to readily control the linear velocity in the spun fiber coating stage, the output of an irradiation lamp, etc., by obtaining the temp.-thermal decomposition heat curve of the UV curing resin applied on the optical fiber and comparing the heat generation peak in the curve with the heat generation peak of a standard sample. CONSTITUTION:An optical fiber preform is spun, the obtained optical fiber is coated with a UV curing resin, and the resin is irradiated by the UV from a UV lamp, cross-linked and cured. The temp.-thermal decomposition heat curve of the resin applied on the optical fiber is obtained, the magnitude of the specified heat generation peak in the curve or the ratio of plural heat generation peaks is compared with those of the standard sample previously obtained, and the cross-linking degree is discriminated. The linear velocity in the spun fiber coating stage, the output of the UV lamp, etc., are adjusted based on the obtained result, and the coated optical fiber having the constant characteristics such as Young's modulus is produced.

6. 发明专利

JPS6444410A COATED OPTICAL FIBER 失效
公开(公告)号：JPS6444410A
公开(公告)日：1989-02-16
申请号：JP20118087
申请日：1987-08-12
申请人： SHOWA ELECTRIC WIRE & CABLE CO , DAINIPPON INK & CHEMICALS
发明人： KINOSHITA AKIRA , SHIMIZU OSAMU , IIZUKA IKUTARO , KANEDA HISASHI
IPC分类号： G02B6/44
摘要： PURPOSE:To lower the coefft. of linear expansion of a colored nylon covering and to lessen the increase in transmission loss at a low temp. by incorporating a prescribed amt. of org. pigment together with titanium oxide into said coating. CONSTITUTION:The colored nylon coating 3 colored to gray is formed via a primary coating 2 consisting of a silicone base material on the outside circumference of an optical fiber 1. A desired amt. of the titanium oxide and >=0.01wt.% org. pigment (A), etc., are compounded with the coating 3. The above-mentioned pigment a is preferably >=1 kinds among perylene pigments such as perylene red, condensed azo pigments such as polyazo yellow and phthalocyanine pigments such as phthalocyanine green. Nylon 12 is usable for the nylon.

7. 发明专利

JPS6236615A COLORED OPTICAL FIBER CORE 失效
公开(公告)号：JPS6236615A
公开(公告)日：1987-02-17
申请号：JP17730385
申请日：1985-08-12
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： SHIMIZU OSAMU
IPC分类号： C03C25/10 , G02B6/44
摘要： PURPOSE:To reduce increase of transmission loss in the longitudinal direction at the time of low temperature, and terminal protrusion phenomenon by using a polyazo yellow pigment positive in the a* direction in the L*a*b* color expression system for the pigment for coloring a colored nylon coat. CONSTITUTION:The silicon type primary coat 2 and the colored nylon coat 3 are formed on an optical fiber element. The polyazo yellow pigment positive in the a* direction in the L*a*b* color expression system is used for the pigment for coloring the colored nylon coat 3, thus permitting the obtained fiber core to be superior and not to suffer residual stress in the longitudinal direction of the fiber core, and increase of transmission loss at the time of low temperature and protrusion phenomenon at the terminal.

8. 发明专利

JPS6146914A Optical fiber core 失效
标题翻译：光纤芯
公开(公告)号：JPS6146914A
公开(公告)日：1986-03-07
申请号：JP16908784
申请日：1984-08-13
申请人： Showa Electric Wire & Cable Co Ltd
发明人： SHIMIZU OSAMU , KUMAZAWA YOSHIO , SAEGUSA MASAHIKO
IPC分类号： C03C25/10 , G02B6/02 , G02B6/10 , G02B6/44
摘要： PURPOSE: To decrease the transmission loss in the longitudinal direction of a colored nylon covering at a low temp. and to decrease the extent of projection of an optical fiber core at the terminal by covering the outside circumference of the optical fiber core with the colored nylon contg. TiO
2 within a psecific content range together with an org. pigment.
CONSTITUTION: A primary silicone covering 2 is formed on the outside circumference of the optical fiber core 1 and the colored nylon covering 3 contg. 0.1W0.5% TiO
2 together with the colored org. pigment is formed thereon. The TiO
2 is incorporated into the covering at the adequate rate to provide substantial hiding power and to decrease the residual stress of the covering 3 in the longitudinal direction of the optical fiber core. The transmission loss in the longitudinal direction at the low temp. is thus decreased and the projection at the terminal is prevented.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：降低低温下有色尼龙覆盖层纵向传输损耗。并且通过用着色尼龙覆盖物覆盖光纤芯的外周来减小端子处的光纤芯的投影程度。在特定内容范围内的TiO 2与组织。颜料。构成：在光纤芯1的外圆周上形成主要的硅氧烷覆盖层2，并且着色的尼龙覆盖层3形成。 0.1-0.5％TiO 2与有色组分。在其上形成颜料。以适当的速率将TiO 2结合到覆盖物中，以提供实质的遮盖力并且减小覆盖物3在光纤芯的纵向方向上的残余应力。低温下纵向传输损耗因此减小并且防止了端子处的突起。

9. 发明专利

JPS6036936B2 失效
公开(公告)号：JPS6036936B2
公开(公告)日：1985-08-23
申请号：JP179278
申请日：1978-01-11
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： SHIMIZU OSAMU , TAKEUCHI KENZO , KINOSHITA AKIRA , KATO JUJI
IPC分类号： B32B25/20 , B29C61/02 , B29C63/42 , B29K105/02 , B29L9/00 , B32B27/00 , B32B27/32

10. 发明专利

JPS60151911A METHOD OF LONGITUDINALLY ATTACHING DRAIN WIRE 失效
公开(公告)号：JPS60151911A
公开(公告)日：1985-08-10
申请号：JP761484
申请日：1984-01-19
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： NAKAZATO AKIO , SHIMIZU OSAMU
IPC分类号： H01B13/26

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