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61. 发明专利

JPH09159887A OPTICAL RIBBON CORD AND OPTICAL FIBER CABLE 失效
公开(公告)号：JPH09159887A
公开(公告)日：1997-06-20
申请号：JP34490895
申请日：1995-12-06
申请人： FURUKAWA ELECTRIC CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： ISHII NOBUNAO , NAKAJIMA FUMINORI , SATO MAKOTO
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of the degradation in transmission characteristics while using a FRP coated optical fiber of a small diameter. SOLUTION: A single core cord 1 is formed by coating the outer periphery of an optical fiber 2 subjected resin coating 3, 4 with fiber reinforced plastic 5 consisting of polarylate fibers as reinforcing fibers. This optical ribbon cord is formed by arranging plural pieces of such single optical cords 1 in juxtaposition and coating the outer periphery thereof with a UV curing resin, thereby integrally molding the cords. This optical fiber cable is formed by laminating and housing plural sheets of such optical ribbon cords.

62. 发明专利

JPH0996726A COAT CUTTER FOR OPTICAL FIBER CORD 失效
公开(公告)号：JPH0996726A
公开(公告)日：1997-04-08
申请号：JP25602095
申请日：1995-10-03
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SATO MAKOTO
IPC分类号： G02B6/00 , B26D3/00 , H02G1/12
摘要： PROBLEM TO BE SOLVED: To provide the coat cutter of an optical fiber cord capable of completely cutting a jacket over the entire periphery without damaging an optical fiber even though it is the optical fiber cord whose buffer layer is thin. SOLUTION: This coat cutter is composed of a planar mounting plate 1 capable of mounting and rotating the optical fiber cord, a vertically movable pressing plate 4 provided above the mounting plate 1 and a blade plate 6 provided between the mounting plate 1 and the pressing plate 4 and constituted by installing a cutting blade provided with a linear blade tip to be projected from a plane part for the thickness of the coat of the optical fiber cord in the direction of rotating the optical fiber code on a flat plate and the pressing plate 4 and the blade plate 6 are connected by using a torsion coil spring 5.

63. 发明专利

JPH0915515A WAVEGUIDE TYPE OPTICAL SWITCH AND ITS PRODUCTION 失效
公开(公告)号：JPH0915515A
公开(公告)日：1997-01-17
申请号：JP16267795
申请日：1995-06-28
申请人： HITACHI CABLE , NIPPON TELEGRAPH & TELEPHONE
发明人： SATO MAKOTO , OKUBO HIROYUKI , KAWAMATA SHIGERU
IPC分类号： G02B26/08 , G02B6/12
摘要： PURPOSE: To make it possible to enhance the self holdability at the time of switching in a waveguide type optical switch. CONSTITUTION: Two cores 2 covered with clads having a low refractive index are formed so as to intersect with each other on a substrate 1 and a groove 3 is formed to intersect diagonally with these cores 2 on the intersected parts. A pipe 5 sealed with a refractive index matching agent 6 in such a manner that a reduced pressure space 7 is generated is inserted into this groove 3. The pipe 5 is inserted and fixed by a UV curing resin as an adhesive. The refractive index matching agent 6 is sealed under a reduced pressure. The groove 3 is provided with heaters 8a, 8b near its both ends in order to move the refractive index matching agent 6 by heating.

64. 发明专利

JPH08304675A COATED OPTICAL FIBER 失效
公开(公告)号：JPH08304675A
公开(公告)日：1996-11-22
申请号：JP10509795
申请日：1995-04-28
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： URUNO SHIGENORI , TACHIKURA MASAO , SATO MAKOTO , TOMITA NOBUO
IPC分类号： G02B6/44
摘要： PURPOSE: To provide a coated optical fiber which is small in diameter and light in weight and has a structure to allow the easy removal of a coating material without damaging optical fibers. CONSTITUTION: This coated optical fiber is formed of the structure obtd. by arranging the optical fiber 10 and glass fibers 20 having the outside diameter larger than the outside diameter of the optical fiber 10 in such a manner that their respective centers are aligned on the same straight line and coating the circumference with a plastic material 30. In such a case, the optical fiber 10 and the glass fiber 20 may be paired or one piece of glass fiber 20 may be arranged between the two pieces of optical fibers 10 or the one piece of optical fiber 10 may be arranged between the glass fiber 20 and the glass fiber 20 or one piece of optical fiber 10 may be arranged between the glass fiber 20 and the glass fiber 20 or the plural pieces of optical fibers 10 may be arranged between the glass fiber 20 and the glass fiber 20 or the glass fibers 20 may be arranged at both ends of the arrangement or the glass fibers 20 may be arranged at both ends or a intermediate part of the arrangement of the plural pieces of optical fibers 10.

65. 发明专利

JPH07318821A OPTICAL FIBER WIRING SWITCHING DEVICE 失效
公开(公告)号：JPH07318821A
公开(公告)日：1995-12-08
申请号：JP11256394
申请日：1994-05-26
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： SAITO KAZUTO , SATO MAKOTO
IPC分类号： G02B26/08
摘要： PURPOSE:To provide an optical fiber wiring switching device which improves the workability of wiring switching and maintenance and enables large-scale integration with a high-density packaging. CONSTITUTION:This optical fiber wiring switching device has a movable switching robot 11 which grips arbitrarily selected second optical fibers 8 and switches the connection. A take-up mechanism which is detained to the slacked arbitrary second optical fibers 8, takes up the optical fibers in the slacked state by rotating the fibers and inserts the ends of the optical fibers into the switching robot 11 to have the ends gripped is added to the switching robot 11. On the other hand, the take-up mechanism is composed of a hook mechanism 20 which detains the second optical fibers 8 near the arranging board and pulls up the optical fibers up to the take-up position and a take-up roller 28 which rotates and takes up the second optical fibers lead by this hook mechanism 20. A vibrator 31 to apply vibrations over the entire part of the parts to detain the optical fibers to be pulled up is mounted at the hook mechanism 20.

66. 发明专利

JPH06287660A METHOD FOR FORMING FINE MERCURY DROPLET 失效
公开(公告)号：JPH06287660A
公开(公告)日：1994-10-11
申请号：JP7651693
申请日：1993-04-02
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SATO MAKOTO
IPC分类号： C22B43/00 , G02B26/08
摘要： PURPOSE:To form a fine mercury droplet which has been appropriately separated and measured by placing mercury in an aq. surfactant soln. which is vibrated to disperse the mercury as many minute droplets, sorting out the droplet of desired diameter and charging the droplet into pure water. CONSTITUTION:An appropriate amt. of mercury 1 is introduced into an aq. soln. 2 of a surfactant such as soap in a test tube 3, the test tube 3 is vibrated by an ultrasonic vibrator 4, etc., and hence the mercury 1 is dispersed into many fine droplets of micron order. Since the droplet is coated with a molecular film of the surfactant, the droplets are not joined to one another but dispersed in the form of globule. The soln. 2, in which the minute mercury droplets are dispersed, is transferred to a flat vessel 6 such as a watch glass by using a pipet 5. The mercury droplet of desired diameter is selected by means of a microscope 8, sucked up with a micropipet 7 of glass tube and transferred into a large amt. of pure water 9. The adhered surfactant is diffused into the pure water 9 and removed, and the washed fine mercury droplet is obtained.

67. 发明专利

JPH06273250A AIRTIGHT SEALING METHOD 失效
公开(公告)号：JPH06273250A
公开(公告)日：1994-09-30
申请号：JP6543693
申请日：1993-03-24
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SATO MAKOTO
IPC分类号： G01L19/00 , B81C99/00
摘要： PURPOSE:To seal microscopic space airtightly by an extremely simple method without using a special device instead of a conventional airtight sealing method formed by using high voltage. CONSTITUTION:A microscopic recess 23 is etched in the center of a glass substrate 22, and grooves 26 are etched in a multiple shape so as to surround the periphery of the recess 23. Silicon oil 25 is applied to a flat cover 21, and it is superposed upon the substrate 22 in a vacuum, and when space is secured in the respective grooves 26, a narrow clearance 24 at which the cover and the substrate contact with each other is filled with the oil. When this is exposed to an atmospheric pressure ambience, gas enters up to reaching pressure capable of being held by respective surrounding groove structures. Assuming that 0.39 atmospheric pressure can be held by a single stage clearance, since the clearance filled with the oil in a three-stage groove structure exists by four stages, a pressure difference of about 1.6 atmospheric pressure can be held as a whole, so that the central space 23 can be kept under vacuum.

68. 发明专利

JPH06167725A OPTICAL SWITCH 失效
公开(公告)号：JPH06167725A
公开(公告)日：1994-06-14
申请号：JP19723993
申请日：1993-08-09
申请人： SUMITOMO ELECTRIC INDUSTRIES , NIPPON TELEGRAPH & TELEPHONE
发明人： HOSOYA TOSHIFUMI , YAMANISHI TORU , KOBAYASHI TAKEHITO , SATO MAKOTO
IPC分类号： G02F1/31
摘要： PURPOSE:To provide an optical switch of novel constitution desired for switching optical paths. CONSTITUTION:A transparent base body and a soln. contg. metallic ions are disposed in the optical path to shield the optical path. Light is reflected on the surface of the transparent base body by depositing the metallic ions on the surface of the transparent base body by an electrochemical reaction or chemical reaction, by which the optical path is changed. The metallic ions are deposited by an electrolytic reaction if the transparent base body is used as an electrode 6 and the soln. as an electrolyte (including a solid electrolyte) 9. Mechanical operations are not required at all and the optical system can be built in a hermetic system and the inexpensive switch having the high reliability is therefore obtd.

69. 发明专利

JPH06148464A SMALL-SIZED CONNECTOR 失效
公开(公告)号：JPH06148464A
公开(公告)日：1994-05-27
申请号：JP31657792
申请日：1992-10-30
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： SATO MAKOTO , KOBAYASHI HIDEO
IPC分类号： G02B6/36 , G02B6/40
摘要： PURPOSE:To provide an optical connector whose packaging density is enhanced, whose erroneous connection is hardly caused in such a case, and whose connecting state is easily grasped. CONSTITUTION:A recessed part 40 is provided in a female connector ferrule 20, and a spring type pressing member 50 for fixing the ferrule 20 in the binding part 33 of a guide pin 30 is provided in the recessed part 40 of the ferrule 20. Then, a discrimination circuit for discriminating another female connector ferrule is provided in the ferrule 20, and one part of the member 50 is connected to the discrimination circuit, and a discrimination signal recorded in the discrimination circuit through the member 50 and the guide pin 30 is fetched.

70. 发明专利

JPH0667099A SWITCHING DEVICE FOR OPTICAL CONNECTOR 失效
公开(公告)号：JPH0667099A
公开(公告)日：1994-03-11
申请号：JP22016892
申请日：1992-08-19
申请人： FURUKAWA ELECTRIC CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： ISHIHARA MIKITAKE , OTA TOSHIHIKO , YAMADA HIROYUKI , SHIGEMATSU TAKASHI , SATO MAKOTO
IPC分类号： G02B6/36 , G02B26/08
摘要： PURPOSE:To provide the optical connector switching device which is small in size, easily assembled, and kept short in height and consists of a small number of components and facilitates component control. CONSTITUTION:A switching member 22b is equipped with a pressure arm 21 which switches and moves the optical connector and a spring shaft 22 which is coupled with a driving means 25 by a coupling part 22b provided at one end and coupled with the pressure arm at the other end, the pressure arm has two pressure fingers 21a having hemispherical projections 21d abutting on respective flanks of the optical connector, a bridge part 21b which couples both the pressure fingers below a support member, and a driven finger 21c which is provided to the bridge part in parallel to a group of reference pins and where the spring shaft is inserted at a right angle to the group of reference pins, and the spring shaft has energizing springs 23 interposed between the other end and driven finger, and the coupling part and driven finger.

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