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1. 发明专利

JPH06128886A COMPOSITE CABLE PRODUCED BY USING FIBER HAVING HIGH STRENGTH AND LOW EXTENSION AND METHOD FOR FORMING TERMINAL-FIXING PART OF THE CABLE 失效
公开(公告)号：JPH06128886A
公开(公告)日：1994-05-10
申请号：JP30062592
申请日：1992-10-14
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO , SUZUKI METAL INDUSTRY CO LTD
发明人： IWASHITA TERUO , SATO YASUTSUGU , NAGATA YASUO , ENDO YOSHIHARU , MORII ATSUO
IPC分类号： D01F9/08 , D07B5/06 , D07B9/00 , E04C5/08 , F16G11/00
摘要： PURPOSE:To form a tough and compact fixing part having short cushioning layer and small outer diameter on a composite cable produced by using a high- strength and low-extension fiber. CONSTITUTION:A fixing part 2 having a cushioning layer 3 is formed by impregnating a high-strength and low-extension fiber with a thermosetting resin to obtain a UD prepreg sheet 5, winding the sheet on the terminal part of a strand 4 and pressing the prepreg under heating. The cable main body and the cushioning layer are completely integrated with each other to form a tough and relatively thin cushioning layer having short length (

2. 发明专利

JPH0693579A COMPOSITE MATERIAL AND ITS PRODUCTION 失效
公开(公告)号：JPH0693579A
公开(公告)日：1994-04-05
申请号：JP9040493
申请日：1993-03-26
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO , SUZUKI METAL INDUSTRY CO LTD
发明人： ITONAGA MASUMI , IZUMIYAMA MAMORU , AKITA YASUHIRO , NAKAZAWA YOSHIO , NAKA RIYOUICHI , IWASHITA TERUO , SHIBAMOTO SHINGO , GOTO YUJI , SHIMA MIKIO , SATO YASUTSUGU , KOMORI HIDEKI , ENDO YOSHIHARU , MORII ATSUO , ABE YOSHIHIRO
IPC分类号： D01F6/80 , D01F9/08 , D01F9/12 , D06M15/19 , D06M101/00 , D06M101/16 , D06M101/30 , D06M101/34 , D06M101/36 , D06M101/40 , D07B1/02 , D07B5/00
摘要： PURPOSE:To efficiently obtain through a simplified process a filamentous composite material by reinforcing a thermosetting resin with high-strength fibers. CONSTITUTION:Tension is applied on a plurality of high-strength fiber bundles, which are then individually impregnated 2 with a resin; the volatiles in the resin are expelled by heating and drying 3 each of the bundles, which are then gathered 4 into a composite elemental strand 8. In this case, the bundle gathering position is fixed relatively to the cross-sectional plane for the elemental strand and the bundles are arranged in parallel with the axis of the elemental strand followed by covering the elemental strand through knitting/braiding, thus obtaining the objective filamentous composite material. For the composite material, either directly or after twisted, the resin impregnated above is cured, thus obtaining the other objective single or twisted filamentous composite material 14.

3. 发明专利

JPH084201A OUTER CABLE CONCRETE STRUCTURE 失效
公开(公告)号：JPH084201A
公开(公告)日：1996-01-09
申请号：JP13712694
申请日：1994-06-20
申请人： KAJIMA CORP , SUZUKI METAL INDUSTRY CO LTD , NIPPON STEEL CORP
发明人： OKUMURA KAZUMASA , AKIYAMA TERU , SAITO SO , MORII ATSUO , ABE YOSHIHIRO , ASAGA SEIJI , NAKAZAWA YOSHIO , HAYASHIDA MICHIYA , IWASHITA TERUO
IPC分类号： E04B1/16 , E01D1/00 , E01D2/00 , E01D101/24 , E01D101/26 , E01D101/28 , E04B1/22 , E04C3/10 , E04C5/08 , E04G21/12
摘要： PURPOSE:To improve the strength by intergrating an outer cable and a concrete member at a plurality of positions on the way of the outer cable taking a space each other. CONSTITUTION:When an outer cable 1 and a concrete member 2 are integrated at a point A and a point B, the cable 1 is extended only between the A and B points by a crack 5. In this case, the strain of the cable 1 is larger than that in the case of extension of the cable 1 between both ends of the member, and hence the rigidity of the member becomes higher. Next in the integration method, deviators 7 provided on the floor board and the like are utilized. After introducing prestress, the integration is performed by filling packing material 8 such as mortar between the holes of the deviators 7 and the cable 1, or by friction between both. In addition, if necessary, a place except the deviators 7 is integrated, or the integration is performed by the use of a fixing device made of steel or concrete or bolts. Hereby, the rigidity of the member can be improved without making any waste.

4. 发明专利

JPH084206A DEFLECTING DEVICE OF OUTER CABLE CONCRETE STRUCTURE 失效
公开(公告)号：JPH084206A
公开(公告)日：1996-01-09
申请号：JP13712594
申请日：1994-06-20
申请人： KAJIMA CORP , SUZUKI METAL INDUSTRY CO LTD , NIPPON STEEL CORP
发明人： OKUMURA KAZUMASA , AKIYAMA TERU , SAITO SO , MORII ATSUO , ASAGA SEIJI , ABE YOSHIHIRO , NAKAZAWA YOSHIO , HAYASHIDA MICHIYA , IWASHITA TERUO
IPC分类号： E04C5/08
摘要： PURPOSE:To prevent a cable from directly touching and rubbing against concrete and steel, and prevent an angle changing part from receiving local stress. CONSTITUTION:Sleeves 6 are arranged in the holes 4a of deflecting devices 4, and when an outer cable 1 is passed through the sleeves 6, solidifying packing material 7 is filled in the sleeves 6 and the outer cable is passed through the packing material 7. The packing material 7 is filled therein after passing the outer cable 1 through the sleeves 6.

5. 发明专利

JPH02138387A FILTRATION OF PITCH FOR CARBON FIBER 失效
公开(公告)号：JPH02138387A
公开(公告)日：1990-05-28
申请号：JP28994888
申请日：1988-11-18
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： ARAI YUTAKA , KOBAYASHI TAKESHI , KUROSAKI KAZUAKI , IWASHITA TERUO , TOMIOKA NORIO
IPC分类号： C10C3/00 , C10C3/02 , D01F9/14 , D01F9/145
摘要： PURPOSE:To make it possible to filter economically pitch for carbon fiber by adding a diatomaceous filter aid having a specified particle size to a pitch in a specified ratio, melting the mixture and filtering the melt under specified conditions. CONSTITUTION:Pitch containing 0.5-10 pts.vol., per pt.vol. foreign matter contained in the pitch, diatomaceous filter aid having a mean particle diameter 1-10 times as large as that of the foreign matter is molten, and the melt is filtered under conditions including a viscosity in the range of 1-3000P and a differential filtration pressure . This filtration process is particularly effective for mesophase pitch having 70vol.% or more optically anisotropic region.

6. 发明专利

JPS63219631A METHOD FOR CLEANING SPINNERET FOR MESOPHASE-CONTAINING PITCH AND APPARATUS THEREFOR 失效
公开(公告)号：JPS63219631A
公开(公告)日：1988-09-13
申请号：JP5012387
申请日：1987-03-06
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： IWASHITA TERUO , OKAMOTO TOSHIO , KATO MITSUO
IPC分类号： D01D4/04 , D01F9/14
摘要： PURPOSE:To enable automation of cleaning of a spinneret, shorten the cleaning time, prolong the life of said spinneret and clean a spinneret in excellent workability, by blasting high-pressure water against a spinneret surface while rotating and reciprocating the spinneret. CONSTITUTION:The objective spinneret can be cleaned by blasting high-pressure water having a blasting pressure of >=30kg/cm against a surface of the spinneret while rotating the spinneret along circumferential direction and reciprocating along the cross-sectional direction of the spinneret. The cleaning operation is preferably carried out by using an apparatus furnished with a spinneret holder 1 provided with a rotary driving mechanism, a water jet blasting nozzle 5, a driving mechanism 4 for reciprocal motion of the spinneret, a water-jet ejection apparatus 12 and a vessel for holding the holder 1 and the nozzle 5.

7. 发明专利

JPH07286408A REINFORCING MATERIAL MADE OF FIBER-REINFORCED RESIN 失效
公开(公告)号：JPH07286408A
公开(公告)日：1995-10-31
申请号：JP10163794
申请日：1994-04-15
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： IWASHITA TERUO , YAMADA KANJI
IPC分类号： E04C5/07 , B32B5/28
摘要： PURPOSE:To secure tensile strength and bond strength to concrete reinforced by reinforcing material made of a fiber-reinforced resin by covering the surface of a wire body, made of a fiber-reinforced resin, with organic fiber bundles by braiding, and setting a specific surface anchor coefficient. CONSTITUTION:A wire body l is formed fiber-reinforced resin constituted of continuous fiber and base material resin, and surface material 2 is formed around the wire body 1 to obtain a reinforcing material made of fiber-reinforced resin. Carbon fiber is used as high strength fiber because of having high alkali resistance and heightening the modulus of elasticity, while thermosetting resin with low alkali resistance such as epoxy resin is used as base material resin, and a surface anchor coefficient is set to 0. 4 to 1.0, that is, SC=T/Y=(h/D)/(YCXYL), where SC: a surface anchor coefficient, T: a protrusion ratio, Y: the covering rate of organic fiber bundle, h: the top part average height of organic fiber bundle, D: the corresponding diameter of the filament body, YC: the ratio of fiber bundle contact length to the cross-sectional peripheral length of the filament body, and YL: the ratio of contact length of the fiber bundle to the longitudinal section extension of the filament body.

8. 发明专利

JPH02229219A PRODUCTION OF MESOPHASE PITCH CARBON FIBER AND SPINNING NOZZLE 失效
公开(公告)号：JPH02229219A
公开(公告)日：1990-09-12
申请号：JP26215089
申请日：1989-10-09
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： IWASHITA TERUO , ARAI YUTAKA , SUNAGO HIROFUMI , TOMIOKA NORIO
IPC分类号： D01F9/14 , D01D4/02 , D01F9/155
摘要： PURPOSE:To provide the subject carbon fiber generating no crack and having a high strength by melt-spinning a spinning mesophase pitch through a spinning nozzle having a specific inlet opening and a circular extrusion opening communicating with the inlet opening and subjecting the melt-spun fiber to a non-fusing treatment, to a carbonization treatment and subsequently to a graphitization treatment. CONSTITUTION:A mesophase pitch for spinning is melt-spun through a spinning nozzle 1 having an inlet opening 2 and an extrusion opening 3 communicating the inlet opening 2 and having a circular cross-section, the inlet opening 2 having an irregularity degree phi of 0.1-0.9 wherein the irregularity degree is the area of a circle using the extrusion opening as the center thereof and inscribing on the inner wall surface of the inlet opening/the area of the inlet opening. The melt-spun pitch fiber is held in air in an atmosphere heated up to 200-300 deg.C for 1hr for the non-fusing treatment of the fiber, heated up to 2300 deg.C in an inert gas and held for 15min for the carbonization treatment of the fiber and further, if necessary, subjected to a graphitization treatment to provide the objective fiber.

9. 发明专利

JPH0461747A NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JPH0461747A
公开(公告)日：1992-02-27
申请号：JP16843490
申请日：1990-06-28
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： IIJIMA TAKASHI , IWASHITA TERUO , SUZUKI KIMIHITO , SATO MAKI , FUJIMOTO KENICHI
IPC分类号： B82Y99/00 , H01M4/583 , H01M10/05
摘要： PURPOSE:To enhance the stability of the discharge capacity for repeated charging/discharging by using carbon fiber made from mesophase pitch as starting material, and therefrom selecting specific carbon fiber. CONSTITUTION:A neg. electrode concerned uses an active substance which is carbon fiber of specific structure. That is, the carbon fiber has properties such that the lattice surface spacing (d002) as crystallite parameter due to X-ray diffraction method ranged 0.338-0.343nm, the size (Lc) of the crystallite in the c-axis direction ranges 10-30nm, the orientation factor (FWHM) ranges 7-20deg., and the mean length in fiber cross-section direction of the graphite crystallite stretching long in the fiber axis direction ranges 20-100nm. In this carbon fiber, the graphite crystallite is surrounded by amorphous portion, which absorbs expansion/contraction of the graphite crystallite elastically, so that macro- structural destruction of carbon fiber will not generated. This provides a large discharge capacity and ensures high stability of discharge capacity for repeated charging/discharging.

10. 发明专利

JPH02242917A PRODUCTION OF MESOPHASE-BASED CARBON YARN 失效
公开(公告)号：JPH02242917A
公开(公告)日：1990-09-27
申请号：JP26214989
申请日：1989-10-09
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： IWASHITA TERUO , ARAI YUTAKA , SUNAGO HIROFUMI , TOMIOKA NORIO
IPC分类号： D01F9/14 , D01D4/02
摘要： PURPOSE:To obtain the subject yarn having high strength free from cracking infusibilized and carbonized after subjecting a mesophase pitch for spinning to melting spinning from a spinning nozzle which is equipped with a filter at an inlet and has induction holes with a specific modification degree and a circular crosssectional shape of delivery holes. CONSTITUTION:By using a spinning nozzle 1 which has a modification degree phidefined by an area of circle inscribed in the wall face of induction holes around delivery holes as a center/the area of induction hole 2 of 0.1 to 0.9 and a circular crosssectional shape of the delivery holes 3 connected to the induction holes 3 and arranging a filter layer 5 is laid at the inlet part of the induction holes 2, a mesophase pitch for spinning is subjected to melt spinning from the spinning nozzle 1 through the filter layer 5, infusibilized, carbonized and optionally further graphitized to give the objective mesophase pitch-based carbon yarn.

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