Nippon Telegraph and Telephone Corporation

Fujikura Limited

Mitsubishi Heavy Industries Limited

Renesas Electronics Corporation

The Furukawa Electric Co., Ltd.

Asahi Kasei Kabushiki Kaisha

Ngk Insulators, Inc.

National Institute of Advanced Industrial Science and Technology

Agency of Industrial Science and Technology

Asahi Kasei Fibers Corporation

Jgc Japan Corporation

Canon Kabushiki Kaisha

Yusuke Yamada

Shinji Watanabe

Takeshi Saito

Katsuya Murakami

Ayatomo Okino

Toshiaki Nagashima

Yutaka Ban

Fumio Tazawa

Ken Osato

Hironori Minagawa

Manabu Jimba

Naoki Okada

Eisuke Noda

Satoshi Hanada

Hisashi Izumita

Akira Namazue

Kentaro Mori

Yoshihiro Ono

Mizuki Isaji

Tsuyoshi Kida

Ryo Koyama

Masaaki Takaya

Yoshiteru Abe

Kenji Sakata

Hidemichi Fujiwara

Takuya Matsumoto

Naoki Nakagawa

Kazuhide Nakajima

Masahiro Abe

Nobuyuki Yomoda

Mitsutaka Nakamura

Kouji Tomikawa

Masayoshi Yamanaka

Kazuo Hogari

Junko Yoshikawa

Kunihiro Toge

Tetsuhiko Kobayashi

Shinya Hamaguchi

Hisaaki Nakane

Hiroaki Tanioka

Shigekatsu Tetsutani

Yuta Maruo

Daisuke Kakuta

Kazunori Katayama

Takashi Matsuzawa

Akira Sakurai

Kazufumi Kato

Atsushi Ueda

Yoshie Sajima

Yukiko Take

Mizuki Kasamatsu

Nobumitsu Yamanaka

Shuuji Fujii

Chisato Fukai

Takuya Harada

Rumina Obi

Masatoshi Katsuki

Junichi Kawataka

Hideo Nishikubo

Masashi Kikuchi

Kazuhiro Takashiba

Takashi Unno

Masatoshi Ohno

Takae Yamashita

Shinichi Okajima

Junichi Kusakabe

Chie Okamura

Yohei Endo

Yukihiko Shibata

Itaru Yasui

Nozomi Yoshida

Wataru Kobayashi

Makoto Uozumi

Takashi Misao

Masaaki Sasayama

The present invention is a physical distribution simulation system including: an input unit that inputs predetermined information regarding waste generated over time in a dismantling step of a structure to be dismantled; a calculation unit that calculates a storage step indicating a storage state of the waste, in a predetermined period from generation of the waste to transport of the waste to an inside of premises or outside of the premises on the basis of the predetermined information; and a display unit that displays a display image visualizing information indicating a change over time of the storage step in the predetermined period.

Physical distribution simulation system

An object of the present disclosure is to provide a method of laying an optical cable that is capable of laying and removing the optical cable in a stable place without civil engineering works. To achieve the above-mentioned object, a method of laying an optical cable according to the present disclosure includes laying the optical cable and two laying strips on a road surface or a wall surface so that the optical cable is sandwiched between side surfaces of the two laying strips.

Optical cable laying method

A method of laying an optical cable according to the present disclosure includes: installing a laying strip, in which the optical cable is to be embedded, on a road surface or a wall surface; forming a cut line, for embedding the optical cable, on the installed laying strip; and embedding the optical cable in the formed cut line.

The present disclosure intends to facilitate tearing a metal sheath even in a case where the metal sheath is incorporated in an optical fiber cable. The optical fiber cable of the present disclosure includes a cable core arranged at a central portion and accommodating a plurality of optical fibers gathered together, an inner layer sheath arranged on an outer circumference of the cable core and sheathing the cable core, a metal sheath arranged on an outer circumference of the inner layer sheath and wound around the inner layer sheath, an outer layer sheath arranged on an outer circumference of the metal sheath and sheathing the metal sheath, and at least one outer sheath tearing string arranged in a longitudinal direction inside the metal sheath.

Optical fiber cable

An optical cable includes: twisted optical fiber units each including a fiber group formed by optical fibers. At least one of the optical fiber units includes a filling that wraps an outer circumference of the fiber group.

Optical cable and optical cable manufacturing method

Provided is an optical fiber ribbon capable of achieving higher density and reduction in diameter and accurately placing optical fibers in V-shape grooves in a fusion machine without failure. The optical fiber ribbon 1 includes three or more of optical fibers 2 arranged in parallel and connecting portions 3 connecting adjacent two optical fibers 2 together, the connecting portions 3 being intermittently provided in each of a ribbon longitudinal direction and a ribbon width direction. The connecting portions 3 are each formed in such a manner as to fill resin into a gap S formed between adjacent two optical fibers 2, and both surfaces of the respective connecting portions 3 are each formed into a recess having a concave shape curved toward a center of the gap S to separate from lines 4,5 each connecting contact points of the optical fibers 2 when being placed on a horizontal surface.

Optical fiber ribbon and optical fiber cable housing optical fiber ribbon

An object is to provide a closure with a structure having a drainage function to eliminate water immersion into a coated optical fiber against temporary flooding and to prevent water from continuously contacting the coated optical fiber. Another object is to provide a closure with improved workability for opening and closing. A closure according to the present invention protects a connection part that connects a coated optical fiber enclosed in a optical fiber cable with a coated optical fiber enclosed in a optical fiber cable. The closure includes a coated optical fiber housing that divides an interior of the closure into a first space that is on a side of a road and has a main body cable insertion hole for inserting the optical fiber cables from an exterior and a second space that is on an opposite side of the road and includes the connection part. The coated optical fiber housing has a frustum shape with two bases each open and a base with a smaller area of the two bases protruding toward the side of the road. The base with the smaller area of the two bases is a cable insertion hole for inserting the optical fiber cable from the first space into the second space and is not in contact with a bottom surface of the first space on the side of the road.

Closure with partition to facilitate draining flood water away from optical fiber connection

An object is to provide a multifiber optical connector and an optical cable connection method capable of reducing a connection time and reducing an installation space of a connection portion. The multifiber optical connector according to the present invention includes three position adjustment units, and performs rough alignment to fine alignment of optical fiber end faces by using sequentially these position adjustment units when optical cables are connected. The multifiber optical connector simultaneously connects the end faces of the plurality of optical fibers included in the optical cables, and thus, an extra optical fiber tape is not present, and a closure needed in the related art is not necessary.

Multifiber optical connector and optical cable connection method

The present disclosure provides: a biodegradable nonwoven fabric for thermoforming, the biodegradable nonwoven fabric being composed of a fiber of a polylactic acid-based polymer, and having a basis weight of 20-300 g/m, preferably, a biodegradable nonwoven fabric characterized by being composed of a long fiber of a polylactic acid polymer, having an MD-direction elongation of 50% or more at 120&#xb0; C., and having an MD-direction dimensional change rate of &#xb1;4% or less at 80-140&#xb0; C. as determined by thermomechanical analysis; a method for producing a molded body by using said biodegradable nonwoven fabric; and a method for molding a biodegradable beverage extraction container, the method being characterized in that the molded body has an MD-direction elongation change rate of 4% or less, as determined by thermomechanical analysis (TMA) under a load of 0.05 N/2 mm at 30-100&#xb0; C.

Method for producing a biodegradable nonwoven fabric

A condition determination system includes: an operation condition data obtaining unit that obtains operation condition data indicating an operation condition of a facility; and a determination unit that determines, based on the operation condition data, a level of a phenomenon that occurs due to the operation condition of the facility.

Condition determination system, condition determination method, decision-making support system, computer program, and storage medium

An object is to provide an optical fiber connector ferrule, a sleeve, and a method for manufacturing a ferrule member that can avoid an increase in manufacturing time and an increase in cost of optical connectors for connecting multicore optical fibers. The present invention provides an optical fiber connector ferrule, a sleeve, and a method for manufacturing ferrule member which realizes alignment of multicore optical fibers corresponding to the connection by mounting a ferrule on a multicore fiber and then cutting a ferrule member instead of aligning core positions by rotating an axis of an optical fiber and adjusting positions of cores to the ferrule, leading to simplification of a rotational alignment step.

Optical connector ferrule, sleeve, and method for manufacturing ferrule member

An optical fiber cableincludes at least one optical fiber coreand a sheath containing the optical fiber core. The optical fiber coreincludes optical fibers. A total length of the optical fiber coreis longer than that of the sheath. The optical fiber coreis contained in the sheathso that bending occurs in the optical fibers

Provided is an optical fiber ribbon capable of achieving higher density and reduction in diameter and accurately placing optical fibers in V-shape grooves in a fusion machine without failure. The optical fiber ribbonincludes three or more of optical fibersarranged in parallel and connecting portionsconnecting adjacent two optical fiberstogether, the connecting portionsbeing intermittently provided in each of a ribbon longitudinal direction and a ribbon width direction. The connecting portionsare each formed in such a manner as to fill resin into a gap S formed between adjacent two optical fibers, and both surfaces of the respective connecting portionsare each formed into a recess having a concave shape curved toward a center of the gap S to separate from lineseach connecting contact points of the optical fiberswhen being placed on a horizontal surface.

An intermittent tape core wire () of an optical fiber cable is assembled into a cable core so that in a k core wire, an l core wire, and an m core wire composed of a multi-core optical fibers continuously adjacent in the width direction of the intermittent tape core wire (), a difference &#x3b8; between a core wire twisting direction Dof the k core wire at a bonding portion () connecting the k core wire and the l core wire and a core wire twisting direction Dof the k core wire at a bonding portion () connecting the k core wire and the m core wire is different from when manufactured.

Optical fiber cable, and device and method for manufacturing optical fiber cable

A work planning system includes an event-data acquisition unit that acquires event data indicating an event of a facility, a storage unit that stores therein a plurality of pieces of work data indicating contents of works that can be performed with respect to the facility, and a decision unit that decides each importance degree of a plurality of pieces of work data based on the event data.

Work planning system, work planning method, decision-making support system, computer program, and storage medium

Growing community of inventors

Tokyo, Japan

Yusuke Yamada