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1. 发明专利

JP2003225951A REINFORCED PLASTIC PIPE 审中-公开
公开(公告)号：JP2003225951A
公开(公告)日：2003-08-12
申请号：JP2002027418
申请日：2002-02-04
申请人： NIPPON STEEL CORP , HITACHI METALS LTD , NIPPON STEEL COMPOSITE CO LTD
发明人： TAKEUCHI TAKASHI , GUNJI SHIGERU , ARAKAWA TAKASHI , OKAWA DAIICHI , AOYANAGI SHIGEAKI , TADOKORO HIROYUKI , WATANABE NOBUYUKI , ARAKI SATORU , TAKEDA TOSHIKAZU , IMAMURA SHINJI
IPC分类号： F16L9/12 , B29C63/14 , B29C70/16 , B29K105/08 , B29L23/00
摘要： PROBLEM TO BE SOLVED: To provide a reinforced plastic pipe which is obtained by highly effectively reinforcing a plastic pipe using a reinforcing material of a reinforcing fiber and shows superb lightweight properties, high pressure resistance and high strength. SOLUTION: The reinforcing material of a reinforcing fiber 10 obtained by impregnating a continuous tape- or sheet-shaped reinforcing fiber with a resin, is densely wound at 50° COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2002036431A METAL REINFORCED POLYETHYLENE PIPE 失效
公开(公告)号：JP2002036431A
公开(公告)日：2002-02-05
申请号：JP2000226753
申请日：2000-07-27
申请人： HITACHI METALS LTD , NIPPON STEEL CORP , NIPPON STEEL COMPOSITE CO LTD
发明人： GUNJI SHIGERU , ARAKAWA TAKASHI , OKAWA DAIICHI , MURAKAMI SHINKICHI , TAMAKI YUJI , IMAMURA SHINJI , WATANABE NOBUYUKI , ARAKI SATORU , KATO SHINICHI
IPC分类号： F16L11/10 , B29C63/14 , B32B1/08 , B32B15/08 , B32B15/085 , B32B15/14 , B32B27/32
摘要： PROBLEM TO BE SOLVED: To provide a composite pipe enabling the piping of a polyethylene pipe in soil, which is polluted with an organic solvent, in an outdoor exposed state, reduced in weight and cost and capable of being thermally fused and bonded. SOLUTION: The composite pipe is constituted by winding a metal sheet around the outside of the polyethylene pipe and further applying fiber reinforcement or polyethylene coating to the outside of the metal sheet.

3. 发明专利

JPS6396393A CORROSION-RESISTANT PIPELINE 失效
公开(公告)号：JPS6396393A
公开(公告)日：1988-04-27
申请号：JP23907786
申请日：1986-10-09
申请人： HITACHI METALS LTD , NIPPON TETSUDO KENSETSU KODAN , NIPPON STEEL CORP
发明人： WATANABE NOBUYUKI , OTAKE TOSHITAKA , MATSUMOTO HIROTSUGU , KOMIYA RYOHEI , HARAKAWA MINORU , NATSUHARA HIROTAKA
IPC分类号： F16L21/06 , F16L58/10

4. 发明专利

CA1202341A UNION JOINT 未知
公开(公告)号：CA1202341A
公开(公告)日：1986-03-25
申请号：CA429997
申请日：1983-06-09
申请人： HITACHI METALS LTD
发明人： WATANABE NOBUYUKI , WANDA NOBUO
IPC分类号： F16L19/02 , F16L19/03 , F16L19/08
摘要： A union joint for jointing pipes comprises a union head having a male screw thread formed on the outer peripheral surface of axiall inner and portion thereof and provided at its end with a seat member made of a non-ferrous material, a union tail piece having a collar on the outer peripheral surface of the inner axial end thereof and provided at its end with a sealing surface constituted by a part of a sphere having an arcuate axial cross-section, and a union nut provided at its front inner portion with a female screw thread and at its rear portion with an inwardly projecting jaw. The union nut is adapted to be screwed to the union head through screwing engagement between the female screw in the union nut and the male screw on the union head while keeping the jaw of the union nut in engagement with the collar of the union tail piece thereby to bring the seat member on the union head and the sealing surface on the union tail piece into close contact with each other to form a seal for preventing leak of a fluid in the joint. An annular groove is formed in the axially inner end portion of the union head adjacent to the inner periphery of the union head, the annular groove having a substantial axial depth and receiving a substantially ring-shaped seat member, the inner wall of the union head defining the annular groove being knurled and flared at at least end portion portion thereof over the entire circumference thereof and caulked onto the seat member. The seat surface of the seat member for contact with the sealing surface on the union tail piece being tapered to diverge towards the axially inner end at a taper angle of between 95.degree. and 110.degree..

5. 发明专利

JP2003042382A Electric fusion joint 审中-公开
标题翻译：电熔接头
公开(公告)号：JP2003042382A
公开(公告)日：2003-02-13
申请号：JP2001230695
申请日：2001-07-31
申请人： Hitachi Metals Ltd , 日立金属株式会社
发明人： WATANABE NOBUYUKI , KANISAWA YUTAKA
IPC分类号： F16L47/02 , B29C65/34
CPC分类号： B29C65/3428 , B29C65/3476 , B29C65/348 , B29C65/3484 , B29C65/3496 , B29C66/1222 , B29C66/1224 , B29C66/5221 , B29C66/52292 , B29C66/71 , B29C66/73921 , B29C66/91411 , B29C66/91643 , B29C66/91651 , B29C66/91951 , B29C66/976 , F16L47/03 , B29K2023/06 , B29K2023/00 , B29K2023/0641 , B29K2027/06 , B29K2023/18 , B29K2023/12
摘要： PROBLEM TO BE SOLVED: To provide an electric fusion joint capable of being produced with reduced man-hours and capable of achieving a fusion part of high quality.
SOLUTION: In this electric fusion joint wherein surfaces of the joint and a resin pipe are fused and connected by supplying a current to a heating means, an interface of a fusing and connecting part is connected by partial fusion of a resin part of a heating element inserted from an outside during connecting.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供能够以减少的工时制造并能够实现高质量的熔接部的电熔接头。解决方案：在通过向加热装置供给电流来熔接和连接接头和树脂管的表面的这种电熔接头中，熔接和连接部分的界面通过加热元件的树脂部分熔融而连接在连接期间从外部插入。

6. 发明专利

JPH1016086A MANUFACTURE OF ELECTROFUSION-TYPE SADDLE JOINT 失效
公开(公告)号：JPH1016086A
公开(公告)日：1998-01-20
申请号：JP17835496
申请日：1996-07-08
申请人： HITACHI METALS LTD , FUSO KOKI
发明人： NISHIKATA NOBUHIRO , WATANABE NOBUYUKI , IKEDA KIYOSHI , KAWAZOE TOSHIHIRO
IPC分类号： F16L47/02 , B29C45/14 , B29C65/34 , B29D23/00 , B29D99/00 , B29L23/00 , B29L31/24 , H05B3/36 , B29D31/00
摘要： PROBLEM TO BE SOLVED: To prevent a wire from slipping off from a groove at the time of bend forming. SOLUTION: A method for manufacturing an electrofusion-type saddle joint comprises a process wherein a thermoplastic resin made inner component 1 is injected molded on an insert die 3 having a projection 5 and a groove 6 which are arranged in a vortex state, a process wherein a wire is buried by pushing into the groove 6 of the inner component 1 rotating the inner component 1 together with the insert die 3, a process wherein the wire 7 is pressured from above the projection 5, and melted by heating to be fixed to the inner component 1, a process wherein the wire 7 is engaged with a connector pin, a process wherein the inner component with which the wire 7 is corporated is detached from the insert die 3, bent in a specific saddle form, and cooled, and a process wherein the saddle formed inner component 1 is arranged on a bottom face of a thermoplastic resin made outer component, and the outer component is integrally injection molded.

7. 发明专利

JPH051333B2 失效
公开(公告)号：JPH051333B2
公开(公告)日：1993-01-08
申请号：JP19818484
申请日：1984-09-21
申请人： HITACHI METALS LTD
发明人： WATANABE NOBUYUKI , FUKUSHIMA SHUJI
IPC分类号： E03B11/12

8. 发明专利

JPS60166076A METHOD OF WASHING INSIDE OF BAG BODY 失效
公开(公告)号：JPS60166076A
公开(公告)日：1985-08-29
申请号：JP2242884
申请日：1984-02-09
申请人： HITACHI METALS LTD
发明人： FUKUSHIMA SHIYUUJI , WATANABE NOBUYUKI
IPC分类号： B08B9/08

9. 发明专利

JPS6018673A COCK 失效
公开(公告)号：JPS6018673A
公开(公告)日：1985-01-30
申请号：JP12644883
申请日：1983-07-12
申请人： HITACHI METALS LTD
发明人： KATAYAMA YOSHIO , WATANABE NOBUYUKI , MATSUBA SATORU , HOSHINO NOBUO
IPC分类号： F16K5/02
摘要： PURPOSE:To prevent gas from leaking out and to ensure safety from a secondary accident by providing stop means for keeping a normal condition when fixing means for fixing a main body and a cock is released. CONSTITUTION:A projecting portion 14 of a cock 2 is provided with fixing means which can be fastened through a washer 3 by a nut 4 between the lower surface of the main body and the projecting portion and that can force a main body 1 and the cock 2 to keep airtightness of a seal surface 11 and can force the cock to freely turn. With the main body 1 and the cock 2 normally controlled and fixed by the fixing means, pin holes 51 are formed in one body in the washer 3 and the projecting portion 14. A pin 5 is driven into a pin hole, so that the projecting portion 14 of the cock 2 is coupled to the washer 3 to be united in a body, to which stop means is applied.

10. 发明专利

JPS5676276A RESIN COATING METHOD 失效
公开(公告)号：JPS5676276A
公开(公告)日：1981-06-23
申请号：JP15268079
申请日：1979-11-26
申请人： HITACHI METALS LTD
发明人： WATANABE NOBUYUKI , NAGAI TAKUO
IPC分类号： B05D7/14 , B05D1/36 , B05D1/38
摘要： PURPOSE:To control the thickness of a coated film and produce a uniform film excellent in adhesion by a method wherein a coated layer of a primer being the same kind as the coating material or having affinity therefor is produced in advance on the surface of body to be coated and then the body is coated by fluidized dip coating. CONSTITUTION:When coating a resin on the surface of the body to be coated, e.g. metallic article, the surface of the body is coated in advance with the primer which is the same kind as the coating material or has affinity therefor, and then the body is dipped in the fluidized bed of the powdery resin, i.e. the coating material, and is heated. The film of the coating material is formed through the coated layer of the primer. Accordingly, the thickness of the coated film can be controlled within the range of about 30-200mu, thereby producing a film excellent in adhesion and durability and preventing the generation of pinholes.

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