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1. 发明专利

JPS57204007A OPTICAL CABLE UNIT CONTAINING JERRY 失效
公开(公告)号：JPS57204007A
公开(公告)日：1982-12-14
申请号：JP8801581
申请日：1981-06-10
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： SHINOHARA HIROMICHI , OOTAKE AKIHIRO , KOKAYU MIKIO , YANAGAWA HISAHARU , KUME SHINICHI
IPC分类号： H01B7/18 , G02B6/44
摘要： PURPOSE:To improve watertightness and side pressure resistance, and to decrease an external diameter, by packing jerry in the layer of an optical fiber core, covering its external circumference lengthwise with a metallic plastic tape through a jerry buffer layer, and laminating a hard thermoplastic sheath around the external circumference of the tape. CONSTITUTION:Optical fiber cores 2 are stranded into one layer around the external circumference of a tension wire body 1 such as a copper-plate steel wire, and a plastic wire reinforced by glass fiber, and jerry 9 is packed among the core wires 2. The external circumference is covered with polypropylene yarn, a pressure winding layer of nylon yarn, etc., is provided around the external circumference of the yarn, and jerry is packed in it to form jerry buffer layers 3 and 4. The external circumference of the layers is covered lengthwise with a metal-plastic laminate tape 5, whose external circumference is covered with a hard thermoplastic sheath 6 of polyethylene, etc. Thus, watertightness and side pressure resistance are improved, and the external diameter is reduced.

2. 发明专利

JPS57204005A OPTICAL CABLE CONTAINING JERRY 失效
公开(公告)号：JPS57204005A
公开(公告)日：1982-12-14
申请号：JP8801381
申请日：1981-06-10
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： NEGISHI YUKIYASU , ISHIDA YUKINORI , SHINOHARA HIROMICHI , OOTAKE AKIHIRO , KOKAYU MIKIO
IPC分类号： H01B7/18 , G02B6/44
摘要： PURPOSE:To prevent an increase in transmission loss due to a squeeze and that at high temperature, by seating an optical fiber core in the groove of a core containing wire body together with jerry, and providing a pressure winding layer around its external circumference. CONSTITUTION:A core containing wire body 10 is provided around the external circumference of a tension member 1 by the extrusion and coating of plastic, and spiral core containing grooves 11 are formed lengthwise in the external circumference of the wire body 10. Jerry 6 is packed around the optical fiber cores 2 in the grooves 11 through a pressure winding layer 4, around which a metallic tape layer 5A and a plastic layer 58 are provided as a mettallic plastic laminate sheath 5. Therefore, an increase in transmission loss due to high temperature is prevented.

3. 发明专利

JPS57204006A UNIT TYPE OPTICAL CABLE CONTAINING JERRY 失效
公开(公告)号：JPS57204006A
公开(公告)日：1982-12-14
申请号：JP8801481
申请日：1981-06-10
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： SHINOHARA HIROMICHI , OOTAKE AKIHIRO , KOKAYU MIKIO
IPC分类号： H01B7/18 , G02B6/44
摘要： PURPOSE:To prevent jerry from flowing out at cable connection part, and to improve airtightness, by packing an inclusion, impregnated with the jerry, in a gap among optical cables each having a unit sheath. CONSTITUTION:Optical fiber cable units 2 are stranded into one layer around the external circumference of a tension member 1. Each optical fiber cable 2 has optical fiber wires 4 in a metallic plastic laminate unit sheath 3. An inclusion 5 impregnated with jerry 8 is packed in a gap among the optical fiber cable units 2, a pressure winding layer 7 of nylon, etc., is provided around the external circumference of the optical cable core 6, and a metallic plastic laminate cable sheath 9 is provided around its external circumference. Therefore, the outflow of the jerry at a connection part is prevented and airtightness is improved.

4. 发明专利

JPS62125304A CLAD OPTICAL FIBER 失效
公开(公告)号：JPS62125304A
公开(公告)日：1987-06-06
申请号：JP26667685
申请日：1985-11-27
申请人： FURUKAWA ELECTRIC CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： NISHIMURA MASAO , KITAMURA AKIRA , KATO KOJI , SHINOHARA HIROMICHI
IPC分类号： C03C25/10 , G02B6/44
摘要： PURPOSE:To obtain clad optical fiber having high durability by providing a resin coated layer having >=50% breaking tensile elongation at room temp. as outermost layer of clad optical fiber. CONSTITUTION:A soft coating layer 12, a rigid coating layer 13, and an outermost resin coated layer 14 are provided to the external periphery of glass optical fiber 11. The rigid coating layer 13 comprises ultraviolet ray cured resin such as urethaneacrylate, and the Young's modulus of the rigid coating layer at room temp. is >=10kg/mm , pref. 10-100kg/mm . The resin coated layer 14 comprises a resin having higher breaking tensile elongation that the rigid coating layer 13. The breaking tensile elongation of the resin for the resin coated layer is >=50%, pref. >=70%. Suitable material for the resin coated layer 14 is in addition to ultraviolet ray cured resin, thermosetting resin such as epoxy resin, urethane resin, etc.

5. 发明专利

JPH0520965B2 失效
公开(公告)号：JPH0520965B2
公开(公告)日：1993-03-23
申请号：JP24169984
申请日：1984-11-16
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SHINOHARA HIROMICHI , KAWASE MASAAKI
IPC分类号： H02G1/02

6. 发明专利

JPS62287520A SELF-SUPPORT CABLE 失效
公开(公告)号：JPS62287520A
公开(公告)日：1987-12-14
申请号：JP12823986
申请日：1986-06-04
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TOMITA SHIGERU , SHINOHARA HIROMICHI , KAWASE MASAAKI
IPC分类号： H01B7/18

7. 发明专利

JPS60261322A HANGING WIRE FOR AERIAL CABLE 失效
公开(公告)号：JPS60261322A
公开(公告)日：1985-12-24
申请号：JP11769584
申请日：1984-06-08
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TOMITA SHIGERU , FUCHIGAMI KENYA , SHINOHARA HIROMICHI
IPC分类号： H02G7/06

8. 发明专利

JPH06281534A OPTICAL FIBER COLLATION DEVICE 失效
公开(公告)号：JPH06281534A
公开(公告)日：1994-10-07
申请号：JP7053593
申请日：1993-03-29
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MIKAWA IZUMI , SHINOHARA HIROMICHI , YAMAMOTO FUMIHIKO , FURUKAWA SHINICHI , OYAMADA YAHEI
IPC分类号： G01M11/00 , G02B27/10
摘要： PURPOSE:To provide an optical fiber collation device capable of contrast and identification of an optical fiber including a branch part. CONSTITUTION:An optical fiber collation device for performing collation and identification of an optical fiber 1 by measuring emission light emitted from the optical fiber 1 characterizes that a pair of bodies 2, 3 sandwiching at a condition to slide and bend the optical fiber 1 are equipped, a recess part 2a for housing, sliding and bending the optical fiber 1 on the surface of the body 2, said recess part 2a ad a projection part 3a with the complementing shape it are formed on the surface of the body 3, a wave guide 41 is shaped along the direction of arrangement of the optical fiber 1 o said recess part 2a and light receiving elements 42 are provided on both the end parts of the wave guide 41 respectively.

9. 发明专利

JPH04119730A OPTICAL TWO-WAY TRANSMISSION SYSTEM 失效
公开(公告)号：JPH04119730A
公开(公告)日：1992-04-21
申请号：JP23959790
申请日：1990-09-10
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MATSUURA MASAAKI , SHINOHARA HIROMICHI , YAMASHITA ICHIRO , OKADA KENJI
IPC分类号： H04B10/00 , H04B10/25 , H04B10/54 , H04B10/548
摘要： PURPOSE:To simply constitute an external modulation mechanism without use of an optical active element and to reduce the cost of the device by realizing the modulation by a user signal onto a light supplied from a center equipment with an absolute single polarized wave optical fiber, an optical passive element such as a reflector and a piezoelectric element. CONSTITUTION:A continuous stimulated light from a stabilizing light source 13 is made incident in an optical multiplexer demultiplexer 15 via an optical fiber 23, a photocoupler 14 and an optical fiber 24, in which the light is multiplexed with a center signal from an electrooptic conversion circuit 11 and the result is sent to an optical fiber 25 in a center equipment. An optical multiplexer demultiplexer 31 of a user equipment demultiplexes the center signal from the continuous stimulated light, which is fed to a modulation section 41. A reflector 411 is fitted to a piezoelectric element 412 in the modulation section 41 and the reflector is moved in parallel with a radiation end face of an optical fiber 27, that is, in a direction to cross a radiation light attended with the elongation and contraction of the piezoelectric element 412 under the control of a modulation control circuit 413. That is, the modulated light is sent from the user equipment to the center equipment in terms of the presence of a light returned to a photoelectric conversion circuit 12 at the center equipment in response to the user signal.

10. 发明专利

JPS6336451B2 失效
公开(公告)号：JPS6336451B2
公开(公告)日：1988-07-20
申请号：JP8427779
申请日：1979-07-02
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SHINOHARA HIROMICHI , HATANO SATOSHI , IKEDA MASAHIRO
IPC分类号： G01M11/02 , G01M11/00 , G02B6/00

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