Hitachi, Ltd.

Hitachi Communication Technologies, Ltd.

Yuki Gosei Kogyo Co., Ltd.

Yukiko Takeda

Hidenori Inouchi

Takehiro Morishige

Keisuke Takeuchi

Shiro Tanabe

Koji Tanaka

Daisuke Matsubara

Kunihiko Toumura

Koh Ohnishi

Akihiko Takase

Hiroki Ikeda

Koji Wakayama

Hideya Yoshiuchi

Naokazu Nemoto

Hui Deng

Shinsuke Suzuki

Mariko Yamada

Katsunori Takahashi

Masaya Hayashi

Takamitsu Senou

Satoshi Shimizu

Yukio Ogawa

Peng Yang

Yusuke Hara

Yoshiteru Takeshima

Yoji Ozawa

Tetsuro Yoshimoto

Tatsuhiko Miyata

Tsuneo Sobue

Hitoshi Yabusaki

Takumi Oishi

Masahiro Yoshizawa

Hiromi Ishikawa Ishikawa

Naoki Haraguchi

Haruo Shibata

Kenji Fujihira

Yuanchen Ma

Yoshiki Matsuura

Takumi Ohishi

Kiyono Nakagawa

Kiyoshi Ichikawa

Osamu Namiki

Hidehiro Akiyama

Kazuko Wakayama

Tetsuji Noda

The object of the present invention is to provide a method for preparing 4-(piperidin-4-yl)morpholine, which is easy to operate. The object can be solved by a method for preparing 4-(1-benzylpiperidin-4-yl)morpholine, characterized in that 5-fold molar or more of morpholine is added to 1-benzyl-4-piperidone, and the mixture is reacted with hydrogen under 1 MPa or less in the presence of platinum catalyst or palladium catalyst.

Method for preparing 4-(piperidin-4-yl)morpholine

A novel acid addition salt of 3-aminoquinuclidine, which is an industrially useful compound as an intermediate of medicines and does not exhibit deliquescence, is provided. In particular, an acid addition salt of 3-aminoquinuclidine selected from the group consisting of racemic 3-aminoquinuclidine, (R)-3-aminoquinuclidine, and (S)-3-aminoquinuclidine, and acid selected from the group consisting of phosphoric acid, sulfuric acid, fumaric acid, terephthalic acid, oxalic acid, p-toluenesulfonic acid, (&#xb1;)-10-camphorsulfonic acid, and (&#x2212;)-10-camphorsulfonic acid, is provided.

Acid addition salt of 3-aminoquinuclidine which does not exhibit deliquescence

When a plurality of services are enjoyed by a single terminal, a communication regulation caused by another service has influence on enjoyment of another service. A service provider and a mobile communication provider are affiliated with each other and newly provide an affiliated service in which a communication fee for a service use is borne by the service provider to a user. Conventional communication and affiliated service communication are performed on a single communication line of the user together, and communication control is performed in units of services such that a service quality of the affiliated service is maintained. It is implemented by affiliating a communication log and contract information between business operators and performing communication identification using user information at the time of a contract as a key.

Affiliated service provision method

This invention provides an apparatus that associates a location where a terminal uses communication or travel route in use of the communication, with a connection destination of the terminal. The apparatus includes a communication log analyzer that aggregates communication logs collected by network apparatuses that constitute the mobile network and analyzes it. The communication log analyzer estimates travel route of the terminal connected the network using: log information generated by a base station to be connected to the terminal at the time of starting the connection, log information generated by a base station to be connected to the terminal at the time of a handover of the connection, and log information generated by a base station connected to the terminal at the time of detaching the connection.

Network system and communication log analyzer

A load balancing system for performing stable processing and high reliability includes a management device which acquires time information indicating the time required in past processing on each of n processing devices, estimates a required time required for each processing devices to process processing target information based on the time information thereby obtaining an estimated time, and transmits estimated time information indicating a relationship between the estimated time and the processing device to a load balancing device. The load balancing device determines m (1&#x3c;m&#x3c;n) processing devices that process the processing target information based on the estimated time information and transmits the processing target information to the designated processing devices. A processing result determination device receives results from the processing devices, estimates a true value from the results to obtain an estimated value, and transmits the estimated value to a subsequent-stage processing device that processes the estimated value.

Processing control system, processing control method, and processing control program

In a communication system in which a plurality of communication apparatuses perform communication via a communication network, a network abnormality detection system dynamically creates a monitoring rule during operation without defining information (monitoring rule) regarding communication to be monitored in advance and perform a collection process and an abnormality determination process quickly even when an amount of information to be monitored is vast. The network abnormality detection system copies packets transmitted at predetermined measurement positions in the communication network, calculates communication statistics information at each measurement position from the copied packets, analyzes one or more pieces of communication statistics information, and detects occurrence of communication abnormality.

Network abnormality detection system, measurement apparatus, and analysis apparatus

An address translator includes an SIP message detecting function. Upon detection of an SIP message, the address translator sends the SIP message to an SIP address translator. The SIP address translator extracts addresses for translation, and makes a query to the address translator. The SIP address translator translates an IP address included in the SIP message, using translation information of the address translator. Thus, an SIP communication is accomplished between terminals belonging to different regions in association of the address translator and the SIP address translator.

Address translator, message processing method and equipment

A communication entrepreneur has an application serverhaving message conversion function. The application serverperforms service function distribution processing with reference to trigger ruleand message rule. The communication entrepreneur can provide various service functions without notifying individual server addresses to a service entrepreneur.

Communication system, application server and communication method for server cooperation

A transport control server coupled to a plurality of nodes in a network through which a plurality of traffics passes through is provided. The transport control server is configured to receive bandwidth information from each of the nodes when the traffics pass through the nodes. For each of the traffics, the transport control server calculates bandwidths at an entry edge node and at an exit edge node based on the received bandwidth information. The transport control server defines as a first traffic, based on the calculated bandwidths at the entry edge node and the exit edge node, a traffic having a discarded bandwidth that is larger than a first predetermined bandwidth. Also, the transport control server defines as a second traffic, based on the received bandwidth information, a first traffic having a bandwidth at the two or more nodes that exceeds a specified second bandwidth.

Transport control server, transport control system, and transport control method

In a cache control assuming plural user terminals accessing identical content, cache delete priority assignment is performed from a position where a user finished playback based on whether the user intends to view the content later. A cache control server is provided, and a cache delete inhibit span is determined based on a playback stop position or a normal speed playback time. A cache server deletes the cache based on the delete inhibit span received from the cache control server. Traffic of the core network due to re-cache can thus be reduced.

Content delivery system, cache server, and cache control server

(Problems) By assigning a fixed home address to an MN, Mobile IPv6 assures the arrival of each content at the MN. In order to allow the user to receive a Mobile IPv6 service, it is necessary to provide the MNwith a Mobile IPv6 function for making applications conform to IPv6. However, there are only few such MNs. In addition, the MNdoes not have a function for implementing an IPsec process repeatedly on a packet transmitted to and received from another apparatus. (technical solution) A scenario processing portemployed in the MNincludes a means, which is used for selecting a process according to a communication method and carrying out the selected process when a response to a Mobile IPv6 location registration message is received. By providing the scenario processing portwith a means for selecting a communication method, a function can be added to the MNwith ease. In addition, by providing the MNwith a means for implementing an IPsec process a plurality of times, it is possible to provide a communication apparatus according to a security management configuration.

Terminal and communication system

A cooperating system includes a web server and a communication service control server, where information of an error in a communication network is not notified until the web server makes an inquiry to the communication service control server. To solve this problem, a communication system is configured to include a session control server for controlling communication sessions from/to a plurality of terminals, an application server for communicating with the session control server, a web server for communicating with the application server, and a network for coupling the session control server, the application server and the web server. The application server is configured to transmit status related information including information on each communication session status of the plurality of terminals to the web server. The web server is configured to detect each communication session status of the plurality of terminals based on the received status related information.

Communication system

Growing community of inventors

Tokorozawa, Japan

Yukiko Takeda