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1. 发明专利

JPH06137821A MEASURING DEVICE FOR INTERNAL STATE OF PIPE 失效
公开(公告)号：JPH06137821A
公开(公告)日：1994-05-20
申请号：JP28999192
申请日：1992-10-28
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： YAMADA TATSUMI , NISHIMURA TSUTOMU , ARIOKA RYOSUKE
IPC分类号： G01B11/24 , G01B11/255 , G01N21/88 , G01N21/93 , G01N21/954
摘要： PURPOSE:To accurately measure the sectional shape and bend of a pipe by passing through a spherical marker applying an eccentricity on a photographed face as a bending index, and fixing a solid shaft connected to a camera through a universal joint to the center of the end face of a measuring section whose profile changes along the inside section of the pipe. CONSTITUTION:A solid shaft 23 passing through a spherical marker 20 is fixed to the center of the end face of a measuring section 19 at its one end, and connected to a camera 22 through a universal joint 21 at the other end. The camera 22 is connected to a data accumulater 4 and a monitor 5. The measuring section 19 is formed with a sponge so as to deform along a pipe and has a drum-shaped external form, and its influence face turns toward the camera 22, and a concentric circular pattern centering around the shaft 23 is drawn on it. When the pipe is bent, eccentricity occurs between the spherical marker 20 and the measuring section 19, and the quantity of eccentricity is read from a positional slippage between a concentric circle drawn on a photographed plane and the marker 20 to determine the curvature of the pipe. When a recess exists in the pipe, the photographed plane changes in its shape, and the outside profile shape of the concentric pattern coincides with the sectional shape of the pipe. Thus, the quantity of recess can be obtained from the profile shape.

2. 发明专利

JPH0384489A BURIED BODY DETECTING DEVICE 失效
公开(公告)号：JPH0384489A
公开(公告)日：1991-04-10
申请号：JP22038789
申请日：1989-08-29
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAGAI EIJI , NAGASHIMA YUJI , AKUTSU SEISHI , ARIOKA RYOSUKE
IPC分类号： G01S13/88
摘要： PURPOSE:To prevent unnecessary data from being inputted by putting a pulse generating circuit in an operation stop state when it is decided that reception intensity found from the received signal of a reflected wave is less than specific permissible reception intensity. CONSTITUTION:The buried body detecting device sets the reception intensity corresponding to the 0.24 intensity rate of the reflected wave in, for example, a comparator 15 as the permissible reception intensity. Then when the intensity rate WRP of the maximum amplitude intensity in the range of the arrival time Tc+ or -DELTAT of the received reflected wave is less than 0.24, an electromagnetic wave transmission stop switch 16 holds an initialized recovery state and the transmission of an electromagnetic wave is carried on. When the intensity rate WRP of the maximum amplitude intensity in the range of the arrival time Tc+ or -DELTAT of the received reflected wave is equal to or less than 0.24, the electromagnetic wave transmission stop switch 16 operates to disconnect a pulse generating circuit 11, stopping the transmission of the electromagnetic wave. Consequently, unnecessary data is prevented from being inputted.

3. 发明专利

JPS6211322B2 失效
公开(公告)号：JPS6211322B2
公开(公告)日：1987-03-12
申请号：JP18247184
申请日：1984-08-31
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： HAIBARA TADASHI , TACHIKURA MASAO , ARIOKA RYOSUKE
IPC分类号： G02B6/24 , G02B6/00 , G02B6/38 , H02G1/12

4. 发明专利

JPS6219821A MANUFACTURE OF OPTICAL FIBER MULTICORE CONNECTOR PLUG 失效
公开(公告)号：JPS6219821A
公开(公告)日：1987-01-28
申请号：JP15837185
申请日：1985-07-19
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OKI MASAYUKI , ARIOKA RYOSUKE , NAGASAWA SHINJI , SATAKE TOSHIAKI
IPC分类号： G02B6/38
摘要： PURPOSE:To position an optical fiber easily with high precision in one stage by arraying multicore fibers preliminary in a metallic mold cavity and arraying cores at equal intervals by resin molding, and thus forming a multicore connector plug. CONSTITUTION:An array plate 13 is fixed temporarily at the high-precision optical fiber multiple-streak V groove part 3 of a bottom metallic mold 6 so that V grooves meet slits; and optical fibers are arrayed along slits of the array plate 13, one by one, and set along the V groove part 3 while inserted by the V grooves 3, optical fibers, and a guide pin fixing part. Thus, all the fibers 1 are set similarly and then fixed in the metallic mold 6 by an fixing part (not shown in figure). Then, the fibers 1 are fixed to the array plate 13 with an instantaneous adhesive and a top metallic mold is combined with the metallic mold 6 to carry out molding by using resin. At this time, the array plate 13 is embedded in an optical multicore connector plug and optical fiber connector end surfaces after the molding are ground. Thus, the high-precision optical fiber multicore connector plug 14 is formed.

5. 发明专利

JPS625208A OPTICAL FIBER CONNECTOR AND ITS PRODUCTION 失效
公开(公告)号：JPS625208A
公开(公告)日：1987-01-12
申请号：JP14435785
申请日：1985-07-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： MIKAWA IZUMI , NAGASAWA SHINJI , ARIOKA RYOSUKE
IPC分类号： G02B6/36 , G02B6/24 , G02B6/38
摘要： PURPOSE:To decrease the number of parts and to provide a smaller and more economical connector by maintaining the prescribed region including the joint part at the front end of the butt side in a fitting hole of the fitting member of the connector under the air pressure lower than the atm. pressure. CONSTITUTION:The connector for optical fibers 1 is constituted of a pair of cores 20 having the front ends 21 on the butt side formed to a small diameter, a rectangular block-shaped fitting member 30 having the fitting hole 31 provided with a suction hole 32 and a sealing member 40. The ends 21 are fitted into the hole 31 from one end thereof and thereafter a suction device is connected to the port 32 and the air pressure in the space A is so set as to be made lower than the atm. pressure. The force to press the cores 20 to each other is thereby generated and the ends 21 are brought into press contact with each other. Since the cores 20 are axially pressed to each other, the need for a pressing member, etc. is eliminated and the number of parts is decreased.

6. 发明专利

JPS594035B2 JPS594035B2 - 失效
公开(公告)号：JPS594035B2
公开(公告)日：1984-01-27
申请号：JP9929179
申请日：1979-08-03
申请人： Nippon Telegraph & Telephone
发明人： ARIOKA RYOSUKE , NOMURA YOSHIHIKO , MORI SUMIO
IPC分类号： E21D9/093 , E21D9/06

7. 发明专利

JPS5758518B2 失效
公开(公告)号：JPS5758518B2
公开(公告)日：1982-12-09
申请号：JP601079
申请日：1979-01-24
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ARIOKA RYOSUKE , MORI SUMIO , NOMURA YOSHIHIKO
IPC分类号： E21D9/02 , E21D9/06

8. 发明专利

JPH0464081A DETECTION OF BURIED OBJECT 失效
公开(公告)号：JPH0464081A
公开(公告)日：1992-02-28
申请号：JP17595190
申请日：1990-07-03
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAGASHIMA YUJI , ARIOKA RYOSUKE , AKUTSU SEISHI , MASUDA JUNICHI
IPC分类号： G01S7/06 , G01S7/295 , G01S13/88 , G01V3/12
摘要： PURPOSE:To enable automatic calculation of the optimum amplification factor at a measuring location by comparing with a reference value a ratio of an area of a waveform with an amplitude value of a reflected wave signal below a specified value to areas of section patterns determined by amplification factors. CONSTITUTION:(n) section patterns are formed by reflected signals received 3 varying 5 a signal amplification factor Gi (n) times sequentially during a specified antenna moving interval. An occupation ratio Rwi of an area (white area) of a waveform with an amplitude of the signal below a specified value is calculated 9 to the total area of section patterns determined by amplification factors Gi and when the occupation ratio Rwi is below a specified reference value Rwo. the amplification factor Gi used for the formation of the pattern involved is selected as the optimum amplification factor. When many patterns meet a relation of Rwi

9. 发明专利

JPH0361898B2 失效
公开(公告)号：JPH0361898B2
公开(公告)日：1991-09-24
申请号：JP21089783
申请日：1983-11-11
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KATO YASUYUKI , KASHIMA YOSHIO , ARIOKA RYOSUKE
IPC分类号： G01M11/02 , G01M11/00 , G01N21/23 , G02B6/00

10. 发明专利

JPH01144309A CABLE LAYING DEVICE THROUGH CONDUIT 失效
公开(公告)号：JPH01144309A
公开(公告)日：1989-06-06
申请号：JP29989487
申请日：1987-11-30
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： ARIOKA RYOSUKE
IPC分类号： H02G1/08
摘要： PURPOSE:To enable laying of cable in a limited space, by jointing two expandable/shrinkable drive units through a plurality of drive jacks then combining expansion/shrinkage of these drive units with telescoping of the drive jack. CONSTITUTION:First and second expandable/shrinkable drive units 1A, 6 arranged respectively in front and rear in laying direction of a cable 18 are jointed through a plurality of freely expandable drive jacks 11. Then the cable 18 is jointed to the rear section of the second drive unit 6. The first and second drive units 1A, 6 are expanded/shrinked alternately and hydraulically or pneumatically, then a plurality of drive jacks 11 are elongated sequentially upon expansion of the second drive unit 6 so as to lay the cable 18 automatically.

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