Sumitomo Electric Industries, Limited

Honda Motor Co., Ltd.

Nippon Telegraph and Telephone Corporation

Other

Ube Nitto Kasei Co., Ltd.

Nlt Technologies, Ltd.

Hiroki Ishikawa

Yoshiyuki Suetsugu

Hiroaki Sano

Hideyuki Iwata

Shigeru Tanaka

Fumiaki Sato

Itaru Sakabe

Kazuo Hogari

Michinori Tani

Toku Ishii

Hiroshi Tsukamoto

Nobuhiro Akasaka

Satoru Masuda

Keisei Morita

Takashi Konomoto

Toru Sekiguchi

Kazunori Watanabe

Toshiaki Kakii

Atsushi Suzuki

Tomoyuki Hattori

Takeshi Inoue

Keisuke Okada

Kazuhiro Hamada

Kazuaki Hamada

Kaoru Okuno

Taisuke Nagasaki

Yohei Suzuki

Toshihisa Sato

Daijiro Nakamura

Osamu Kawata

Ikue Habu

Ryouzo Nishikawa

Joseph Aaron Mears

Sotaro Ida

Hisashi Tanji

Yuichiro Murata

Taku Hirota

Kevin Scott Katerberg

Shigeru Suemori

Yoshinobu Kitayama

Yuuki Shimoda

Tsuyoshi Imaizumi

Yasuhiro Maeda

Nobumasa Nirasawa

Tomoya Sugiyama

Fumikazu Yoshizawa

Masahiko Komatsubara

Takeo Tsurumi

Tatsuhiko Naito

Teruo Araki

Robert Carrier

Masahiko Ishikawa

Yoshiro Yamane

Shingo Hori

Masahiro Imamachi

Seigo Ujiie

Masakazu Watanabe

Yuji Sera

Kimio Ando

Tadaaki Haruki

Gen Morikawa

Wataru Katurashima

Kenji Morita

Yoshiyuki Suetugu

Junichi Ota

An optical fiber cable includes optical fiber ribbons and a sheath covering a periphery of the plurality of optical fiber ribbons. Each of the optical fiber ribbon includes optical fibers, and a connected portion and a non-connected portion are intermittently provided in the longitudinal direction. Each optical fiber includes a glass fiber and a coating portion. A ratio of an inner diameter to an outer diameter of the sheath is 0.75 or more. A ratio of a total area of glasses in an optical fiber ribbon accommodating portion to an area of the optical fiber ribbon accommodating portion is 15% or more and 25% or less, the number of the optical fibers in the optical fiber cable is 3000 or more, and the outer diameter of the sheath is 50 mm or less.

Optical fiber cable and cable with connector

An optical-electric composite cable includes a cable unit, at least one metal wire, and a sheath. The cable unit includes at least one optical fiber and a twisted pair wire twisted with the at least one optical fiber. The at least one metal wire is disposed around the cable unit. The sheath surrounds the cable unit and the at least one metal wire.

Optical-electric composite cable and method for manufacturing the same

In a failure determination device for an internal combustion engine equipped with a supercharger, the failure determination device determining a failure of a breather pipe that is connected between a crankcase and an intake passage at a position on an upstream side of the supercharger, the breather pipe is constituted by a double pipe including an inner pipe and an outer pipe, a communication passage communicates an enclosed space between the inner pipe and the outer pipe of the breather pipe with a portion of the intake passage on a downstream side of the supercharger. When the detected breather outer-pipe gauge pressure is higher than or equal to a determination threshold that is set in accordance with detected intake gauge pressure, the failure determination device determines that the breather pipe is failed.

Failure determination device for internal combustion engine

The present disclosure includes: an optical fiber ribbon including a plurality of optical fibers having an outer diameter of 0.2 mm or less and a ribbon resin that integrates the plurality of optical fibers in a parallel state; and a coating resin that covers the optical fiber ribbon. The optical fiber ribbon is in an assembled form in which the plurality of optical fibers are assembled so that a length in an arrangement direction is shorter than that of a case where the optical fibers are arranged in a row, and the optical fiber ribbon is covered with the coating resin in the assembled form.

Optical fiber unit and optical fiber cable

Provided is a manufacturing method of an optical fiber ribbon for manufacturing an intermittent-connection-type optical fiber ribbon including a connection part and a non-connection part. The manufacturing method includes: a release agent applying process of intermittently applying a release agent for preventing optical fibers from being bonded to each other with a connection resin in a longitudinal direction of the optical fibers in a state where the optical fibers are arranged in parallel; and a connection resin applying process of allowing the optical fibers in the state of being arranged in parallel to pass through a die for applying the connection resin around the optical fibers after the release agent applying process, and of curing the connection resin.

Manufacturing method of optical fiber ribbon and manufacturing apparatus thereof

Occlusion diagnosis of a vent passage is executed with high accuracy based on an estimated value of the volume of a sealed space. An occlusion diagnosis device includes a diagnosis unit for the diagnosis. An occlusion diagnosis unit of the diagnosis unit executes the occlusion diagnosis, based on whether or not an estimated volume of a sealed space of a fuel-vapor sealing system exceeds a volume threshold. The occlusion diagnosis determines that the vent passage is suspected of being occluded if the estimated volume is equal to or less than the volume threshold, while diagnoses that the vent passage is not occluded if the estimated volume exceeds the volume threshold. If it is determined that the vent passage is suspected of being occluded, the occlusion diagnosis unit causes the occlusion diagnosis of the vent passage to remain incomplete until a cumulative exhaust amount of fluid exceeds an exhaust amount threshold.

Occlusion diagnosis device

An optical fiber includes a glass fiber and a coating resin covering an outer periphery of the glass fiber. The glass fiber includes a core and a cladding. An outer diameter of the glass fiber is 99 &#x3bc;m or larger and 101 &#x3bc;m or smaller. The coating resin includes a cured material of an ultraviolet curing resin composition. An outer diameter of the coating resin is 160 &#x3bc;m or larger and 170 &#x3bc;m or smaller. A mode field diameter for light having a wavelength of 1310 nm is 7.2 &#x3bc;m or larger and 8.2 &#x3bc;m or smaller. Bending loss at a wavelength of 1550 nm when wound in a ring shape having a radius of 10 mm is 0.1 dB/turn or less. Bending loss at the wavelength of 1550 nm when wound in the ring shape having the radius of 7.5 mm is 0.5 dB/turn or less.

Optical fiber

An optical fiber ribbon includes N pieces of optical fibers in a state of being disposed in parallel. At least some parts of the N pieces of optical fibers contact each other and are connected to each other by a resin; an outer diameter of the optical fiber is equal to or larger than 0.135 mm and equal to or smaller than 0.180 mm; a connection part connected by the resin or another resin and a non-connection part not connected by the resin or another resin are intermittently provided in a longitudinal direction between intermittently connected core wires of an optical fiber disposed at the Mth and an optical fiber disposed at the (M+1)th among the N pieces of optical fibers; the N is a multiple of 12; and the M is a multiple of 4.

Optical fiber ribbon and optical fiber cable

An internal combustion engine includes on-off valves that configure a closed space by closing an internal space of a breather line, a pump that depressurizes or pressurizes the closed space, a pressure sensor that detects a pressure of the closed space, and an abnormality assessment element that assesses abnormality of the breather line. The abnormality assessment element assesses abnormality of the breather line based on a pressure change of the closed space in a case where the closed space is depressurized or pressurized by the pump.

Abnormality assessment device of internal combustion engine

A blockage detection device opens a purge valve in a state where a negative pressure pump is operated. The negative pressure pump is connected to a downstream side of a canister with respect to a fuel tank, and reduces pressure in a device internal space. The blockage detection device calculates gas information (volume V, for example) of the device internal space on the basis of variation of internal pressure before and after the purge valve is opened. The blockage detection device detects a blockage in a vent line using the calculated gas information.

Blockage detection device and blockage detection method

An optical fiber includes a glass fiber and a coating resin covering an outer periphery of the glass fiber. The glass fiber includes a core, an inner cladding, a trench, and an outer cladding. An outer diameter of the glass fiber is 99 &#x3bc;m or larger and 101 &#x3bc;m or smaller. An outer diameter of the coating resin is 160 &#x3bc;m or larger and 170 &#x3bc;m or smaller. A mode field diameter for light having a wavelength of 1310 nm is 7.2 &#x3bc;m or larger and 8.2 &#x3bc;m or smaller. Bending loss at a wavelength of 1550 nm when wound in a ring shape having a radius of 10 mm is 0.1 dB/turn or less. Bending loss at the wavelength of 1550 nm when wound in the ring shape having the radius of 7.5 mm is 0.5 dB/turn or less.

A blockage diagnosis device includes a diagnosis unit that performs blockage diagnosis on a vent passage based on a change over time in an internal pressure of the vent passage in association with the operation of a negative pressure pump. A primary determination unit of the diagnosis unit makes a primary determination that the vent passage is blocked, if a first estimation volume Vis less than a preset threshold volume Vth. A secondary determination unit of the diagnosis unit makes a secondary determination that the vent passage is blocked, if the second estimation volume Vis less than the threshold volume Vth. If the primary determination indicating that the vent passage is blocked is made in the primary determination unit, and the secondary determination indicating that the vent passage is blocked is made in the secondary determination unit, the diagnosis unit determines that the vent passage is blocked.

Blockage diagnosis device

Disclosed is a fuel level estimation device including: an information acquiring unit acquiring information about a closed system internal pressure of a closed fuel vapor system including the fuel tank, a vent passage, and a canister; a flow rate controlling unit controlling, by actuating a negative pressure pump, a flow rate of fuel vapor-containing gas in the closed fuel vapor system; a fuel level estimating unit estimating a fuel level based on a total volume of the closed fuel vapor system and an occupied volume of the gas. The fuel level estimating unit estimates the occupied volume of the gas by using a change in a closed system internal pressure before and after the closed fuel vapor system is subjected to pressure-reducing treatment for a predetermined interval and a reference discharging rate when the gas is subject to the pressure-reducing treatment. An abnormality diagnostic apparatus is also disclosed.

Fuel level estimation device and abnormality diagnostic apparatus for closed fuel vapor system

To provide a liquid crystal display device and the like capable of achieving a function with which the charging polarity for the liquid crystal panel is not deviated even when the frame rate for writing to the liquid crystal panel changes dynamically only with simple structures and low power consumption. A polarity inversion control circuit is for supplying polarity inversion signals to the liquid crystal panel, and it is characterized to switch the levels of the polarity inversion signals in such a manner that a difference between an integrated value of frame periods when the polarity inversion signal is in a first level and an integrated value of the frame periods when the polarity inversion signal is in a second level becomes small.

Polarity inversion control device for liquid crystal display, liquid crystal display device, and driving method thereof

A brake system for a vehicle can include a brake actuator, an equalizer operably connected to the actuator, and two brake wires that are each connected to the equalizer and extend to first and second brake assemblies. The first and second brake wires can extend in a first direction extending from a front of the vehicle toward a rear of the vehicle. The first brake wire can cross over the second brake wire at least once and possibly twice, each time in a direction transverse to the first direction. Additionally, the first and second brake wires can each include a cover that protects a respective wire. The covers can be in contact with each other at the crossover point for the wires to minimize noise, friction and to improve operating ability and durability of the brake wires. The various features, such as the cross-over configuration, the contacting wires, and/or the covers, also make it possible to minimize the space requirements for the wires in the vehicle.

Brake system and method

Growing community of inventors

Kanagawa, Japan

Hiroki Ishikawa