Yamabiko Corporation

Nippon Telegraph and Telephone Corporation

Ricoh Company, Ltd.

Ntt Docomo, Inc.

Sharp Kabushiki Kaisha Corporation

Nsk Corporation

Toshiba Electronic Devices & Storage Corporation

Kioritz Corporation

Mitsui Engineering and Shipbuilding Company Limited

Shibaura Mechatronics Corporation

Oppama Industry Co., Ltd

Z Ama Japan Co., Ltd.

Rise Pit Company Co., Ltd.

Takahiro Yamazaki

Kenji Shimizu

Atsushi Taniguchi

Maiko Naya

Takashi Shimizu

Yohei Katayama

Ken Shirai

Hidekazu Tsunoda

Hisato Osawa

Tetsuya Nakamura

Motoshi Tamura

Shigeru Iwashina

Hisato Onodera

Yuta Kobayashi

Shirou Yamaguchi

Takamasa Otsuji

Koichirou Ogura

Bunpei Yatsu

Takayuki Maruta

Ashiq Khan

Shunsuke Ueda

Takeo Yamasaki

Joan Triay Marques

David Perez Caparros

Hidenori Asaba

Kenta Ito

Yuji Numakunai

Bertrand Souville

Takahiro Kinoshita

Nobuhiko Ando

Takumi Nonaka

Makoto Kanbe

Shin Kumagai

Yusuke Suzuki

Yasuhiro Hattori

Hisato Ohsawa

Shigeru Sato

Hidenori Shindoh

Kyosho Uryu

Hideyuki Suzuki

Tomoyoshi Kudo

Mitsujiro Mochizuka

Yuichi Tsuyuki

Ken Satoh

Kohsuke Watanabe

Yuuta Kobayashi

Masaru Nozawa

Naoki Koga

Kentaro Matsuo

Takayuki Yamada

Kazuyuki Tateyanagi

Kazumichi Yamaguchi

Satoru Hara

Akihiro Shigeyama

Tadashi Shiozaki

Naoki Yanagisawa

Seiichi Takanashi

Tamehisa Yamaguchi

Shouta Genba

A gas engine power generating system includes an electricity generating component including a gas engine, an alternating-current electricity generator, a cooling system portion, an exhaust system portion, an engine control unit, a battery, and an alternating current/direct current inverter, and a housing. A plurality of the electricity generating components are provided as electricity generating units, and are accommodated in the housing. Each electricity generating unit is configured to be capable of generating electricity independently, the plurality of electricity generating units are electrically connected together in parallel, operation, shut-down, and the amount of generated electric power for all the electricity generating units are managed by a total control unit, and direct-current power from each electricity generating unit is aggregated and converted to alternating-current power, and is supplied to the load side.

Gas engine power generation system

Provided is an air leading type stratified scavenging two-stroke internal combustion engine including an air passage configured to allow supply of air to a scavenging passage configured to allow communication between a crank chamber and a combustion chamber, at least one sensor configured to detect an operating condition of an engine, and a fuel valve configured to control fuel supply to the air passage based on detection performed by the at least one sensor. The fuel supply to the air passage is controlled by the fuel valve at times other than start and idling of the engine or at needed times in addition to the start or the idling of the engine.

Air-leading type stratified scavenging two-stroke internal combustion engine, and engine working machine

A base station information DB () of a base station management apparatus () stores base station information that indicates wireless schemes that can be implemented by base stations (), scheduled periods for implementation of the wireless schemes, and coverage areas of the base stations () in which wireless terminals can be accommodated. A use base station selection unit () creates a list of base stations () that can cover an entirety or part of a coverage area of a failed base station, which is a base station () that has failed, with reference to the base station information, selects a base station () that can implement an implementation-scheduled wireless scheme, which is a wireless scheme that is scheduled to be implemented by the failed base station, during a scheduled implementation period, which is the scheduled period for implementation of the implementation-scheduled wireless scheme of the failed base station, from among the base stations () included in the list, and sets the selected base station () so as to provide the implementation-scheduled wireless scheme to the coverage area of the failed base station during the scheduled implementation period.

Base station management method, base station management apparatus and program

Provided is an engine working apparatus capable of smoothly decelerating an engine. The engine working apparatus includes: an internal combustion engine including a piston reciprocally movable in a cylinder and a combustion chamber defined by the piston; an ignition plug configured to ignite air-fuel mixture in the combustion chamber; a detector configured to detect a rotation number of the internal combustion engine; and a controller configured to control an ignition timing of the ignition plug based on the detected rotation number, execute feedback control of determining the ignition timing based on a deviation between a target rotation number and the detected rotation number, and to execute the feedback control when the detected rotation number satisfies a predetermined deceleration condition.

Engine working apparatus

A Schnuerle scavenging two-stroke engine is provided that can keep combustion stability in a wide rotation speed range while suppressing blow-by. The engine of the present invention is a Schnuerle scavenging two-stroke engine (). A scavenging passage ((in)) related to at least one scavenging port ((in)) has, at its upper end portion ((in)), an intake-side wall surface (). The intake-side wall surface () defines a first flow direction () of scavenging gas discharged from the scavenging port ((in)) at a height level of the scavenging port ((in)). The upper end portion ((in)) of the scavenging passage ((in)) related to the scavenging port ((in)) has a guide portion () defining a second flow direction () of scavenging gas discharged from the scavenging port ((in)). The second flow direction () is deflected to the intake side from the first flow direction () at the height level of the scavenging port ((in)).

Schnuerle scavenging two-stroke engine

A communication control apparatus includes a communication parameter acquisition unit that acquires at least one second communication parameter that is a candidate for a first communication parameter indicating a communication parameter to be assigned to a communication apparatus and indicates a communication parameter suitable for regional characteristics indicating a communication environment in a region where the communication apparatus is installed, a setting file storage unit that stores a setting file corresponding to each second communication parameter, a setting file acquisition control unit that acquires the setting file and stores the acquired setting file in the setting file storage unit, and a communication parameter assignment unit that determines the first communication parameter from among the second communication parameters acquired by the communication parameter acquisition unit and assigns the determined first communication parameter to the communication apparatus.

Communication control device, communication control method and communication control system

An engine () is a four-flow scavenging type engine. Four scavenging ports () include: first right and left scavenging ports ((lef-) and(ref-)) that lie on a side relatively away from an exhaust port () and that lie facing each other with a cylinder () in between; and second right and left scavenging ports ((lef-) and(ref-)) that lie closer to the exhaust port () than first right and left scavenging ports do and that lie facing each other with the cylinder () in between. The second left scavenging port and the first right scavenging port that make up a first mutually diagonal set (Diag-No.) have different opening timings from those of the first left scavenging port and the second right scavenging port that make up a second mutually diagonal set (Diag-No.).

Two-stroke engine

A radio communication method executed by a control apparatus controlling a base station apparatus performing communication with a terminal in a predetermined region, and includes determining whether there is the terminal that is asynchronized in communication with the base station apparatus transmitting a synchronization signal, and controlling, in a case where it is determined that there is the asynchronized terminal, the base station apparatus to increase an allocation time of the synchronization signal in compliance with a radio scheme used by the asynchronized terminal or to shorten an allocation cycle of the synchronization signal.

Wireless communication method, control device, terminal and wireless communication system

A wireless communication method is executed by a wireless communication system including one or more wireless terminals and a wireless communication apparatus. The wireless communication apparatus generates wireless scheme schedule information, which is information related to a schedule of a slot allocated to an uplink signal and a downlink signal of a predetermined wireless scheme, generates a downlink signal to be transmitted in the slot to the wireless terminal based on the wireless scheme schedule information, and transmits a beacon signal including the wireless scheme schedule information in the slot. The wireless terminal receives the beacon signal, in the slot, acquires the wireless scheme schedule information from the beacon signal, and generates an uplink signal to be transmitted in the slot to the wireless communication apparatus, based on the wireless scheme schedule information.

Wireless communication method, wireless communication device and wireless communication system for slot allocation

An environmental information acquisition method is performed by an environmental information acquisition apparatus that acquires a measurement result of a radio wave environment. The environmental information acquisition method includes distributing software of each radio scheme to one or more base station apparatuses measuring a radio wave environment of the radio scheme based on the software of the radio scheme, instructing the one or more base station apparatuses to measure the radio wave environment, and acquiring the measurement result of the radio wave environment from the one or more base station apparatuses measuring based on the software the radio wave environment in multiple sections set across an area.

Environment information acquisition method, environment information acquisition apparatus and environment information acquisition system

There is provided a wireless communication method in a wireless communication system including a plurality of base station apparatuses, a plurality of wireless signal processing apparatuses configured to perform signal processing that corresponds to each of a plurality of wireless schemes, and a control apparatus configured to control a transmission timing of signals in the base station apparatus and the wireless signal processing apparatus, the method including: determining a combination of the base station apparatus and the wireless signal processing apparatus that perform communication at each predetermined time by the control apparatus such that there is less overlap in time to establish a communication path between the wireless signal processing apparatus and each of a plurality of base station apparatuses that use the same wireless signal processing apparatus, in which the base station apparatus and the wireless signal processing apparatus perform communication by switching a determined combination of the communication paths and any one or all of a radio frequency of each base station apparatus and a wireless bandwidth of each base station apparatus over time.

Wireless communication method, control device and wireless communication system

An access point management method for managing a plurality of access points capable of providing wireless communication services in accordance with a plurality of wireless standards to a radio terminal apparatus includes acquiring plural pieces of request information which are used for requesting providing of the wireless communication service and include information indicating an area in which the wireless communication service is provided, selecting the access point assigned to each wireless communication service, based on the area requested by the plural pieces of request information acquired and characteristics of a wireless standard provided in the wireless communication service, and transmitting a request signal for deploying the wireless communication service corresponding to the request information, to the access point selected.

Access point management method, access point management apparatus, and access point management system

This invention provides a radio communication method in a radio communication system including a base station apparatus and a radio signal processing apparatus for communicating with the base station apparatus, the radio communication method including granting radio control information that includes at least information specifying a radio scheme to be used as a parameter required for radio communication, to a packet and transmitting the packet from which the radio control information has been removed, by the radio scheme specified by the radio control information granted to the packet.

Wireless communication method, wireless communication system and base station device

Provided is a starting-fuel supply device, including: a starting-fuel supply valve configured to automatically add a starting fuel to an air-fuel mixture generated by a carburetor; and a valve chamber for the starting-fuel supply valve, wherein a fuel in a fuel tank is allowed to move to an intake passage through the valve chamber for the starting-fuel supply valve with use of a manual pump configured to suck up the fuel in the fuel tank into a carburetor before start of an engine, and wherein the valve chamber is disposed at a position below the intake passage when the engine is in a stored state.

Starting-fuel supply device, adapter, and engine work machine

The efficiency of charging air to a scavenging channel is enhanced by generating a gas flow in a piston groove simultaneously with the piston groove coming into communication with an air port. A piston grooveformed in a peripheral surface of a piston includes a pressure transmission through hole, and the pressure transmission through holeconsistently communicates with a crankcase. In the course of the piston moving up, upon a pressure in the crankcase becoming negative, the negative pressure in the crankcase affects the piston groovethrough the pressure transmission through hole. Consequently, a pressure in the piston grooveis released to the crankcase through the pressure transmission through hole. Upon the piston moving up and the piston groovebeing thereby brought into communication with the air port, air enters the piston groovethrough the air port((III) of FIG.).

Air leading-type stratified scavenging two-stroke internal-combustion engine

Growing community of inventors

Tokyo, Japan

Takahiro Yamazaki