Abstract: An object of the present invention is to obtain a group III nitride compound semiconductor stacked structure where a group III nitride compound semiconductor layer having good crystallinity is stably stacked on a dissimilar substrate. The group III nitride compound semiconductor stacked structure of the present invention is a group III nitride compound semiconductor stacked structure comprising a substrate having provided thereon a first layer comprising a group III nitride compound semiconductor and a second layer being in contact with the first layer and comprising a group III nitride compound semiconductor, wherein the first layer contains a columnar crystal with a definite crystal interface and the columnar crystal density is from 1×103 to 1×105 crystals/?m2.

Abstract: The present invention provides a manufacturing method of a group III nitride semiconductor light-emitting device, including a lamination step of forming a plurality of lamination films including a group III nitride semiconductor on a substrate, in which a substrate on which is formed a foundation layer including a monocrystalline group III nitride semiconductor is used as the substrate, and lamination films are formed on the foundation layer by a sputtering method, with the substrate including the foundation layer and a target made from a group III metal or an alloy including a group III metal being placed in a sputtering chamber.

Abstract: The present invention provides a deposition method of a multilayered structure composed of a III group nitride compound semiconductor having good crystallinity on a substrate. The multilayered structure comprises at least a buffer layer and an underlying layer from the substrate side, and the buffer layer and the underlying layer are formed by a sputtering method. A deposition temperature of the buffer layer is adjusted to a temperature lower than a deposition temperature of the underlying layer, or the thickness of the buffer layer is adjusted to 5 nm to 500 nm. Furthermore, the multilayered structure comprises at least an underlying layer and a light-emissive layer from the substrate side and the underlying layer is formed by a sputtering method, and the method comprises the step of forming the light-emissive layer by a metal-organic chemical vapor deposition (MOCVD method).

Abstract: According to one embodiment, a conference system which includes a plurality of client terminals to be connected with a communication network, and a conference unit supporting conferences to be held among the plurality of client terminals via the communication network, includes a resource control unit which dynamically allocate a resource of the conference unit to be consumed for supporting the conferences for each group to individually hold the conferences in response to occurrences of events showing changes in states of client terminals belonging to the group, and a release control unit which releases at least a part of the resources to be allocated to groups in which the events occur while the conferences are held under preset conditions.

Abstract: According to one embodiment, an apparatus accommodates a telephone terminal and an emergency call terminal, wherein the telephone terminal is associated with the first video camera and a first display, the emergency call terminal is associated with a second video camera and a second display, and the apparatus further includes a determination processor determines whether or not a call generated from the telephone terminal is an emergency call, a visual link former forms an image communication link between the first video camera and the second display to display an image captured by the first video camera on the second display if the determination processor determines the call is the emergency call, and a voice link former forms a voice communication link between the telephone terminal and the emergency call terminal when the emergency call terminal performs a response to the call after the image communication link is formed.

Abstract: The present invention provides a solar cell that is useful for industry and has high photoelectric conversion efficiency and a method of manufacturing the same. A solar cell according to an aspect of the invention includes: a substrate; a buffer layer that is formed on the substrate and is composed of a group-III nitride semiconductor; and a group-III nitride semiconductor layer (p-type layer/an n-type layer) that has a p-n junction therein and is formed on the buffer layer. At least one of the buffer layer and the group-III nitride semiconductor layer having the p-n junction therein has a compound semiconductor layer formed by a sputtering method.

Abstract: According to one embodiment, a conference system includes: plural terminals that communicate with each other through a communication network; a server that performs a call control for the terminals; and a conference unit that implements a conference among the terminals through the communication network. At least one of the terminals includes a user interface section that accepts an input operation of mode information regarding terminals to participate in the conference and a notification section that notifies the server of the specified mode. The server includes a detection section that detects a remaining amount of a resource of the conference unit necessary to implement the conference and a member determination section that determines plural members to participate in the conference from among the terminals, based on the mode notified by the notification section and the remaining amount of the resource.

Abstract: A Group III nitride compound semiconductor light-emitting device manufacturing apparatus with a simple structure, which it is capable of easily optimizing the density of a dopant element in the crystals of a Group III nitride compound semiconductor and forming layers with high efficiency using a sputtering method. The manufacturing apparatus includes: a chamber; a Ga target containing a Ga element and a dopant target containing a dopant element, the Ga target and the dopant target being placed within the chamber; and a power application unit that applies power to the Ga target and the dopant target simultaneously or alternately.

Abstract: According to one embodiment, a conference system which is provided with a plurality of communication terminals, a communication network connecting the plurality of communication terminals thereto and forming a communication environment, and a server apparatus actualizing a conference among users by using the communication network, wherein each of the communication terminals includes a notice processor notifying an acquisition request including the fact of a request to acquire multimedia data and identification information to the server apparatus, and a storage unit storing the multimedia data, and the server apparatus includes a memory unit associating a communication terminal that is a request origin with the identification information, and storing them, an inquiry processor inquiring a possibility to become the route of the multimedia data, and a transmission processor transmitting the multimedia data to the communication terminal of the request origin via the communication terminal of the route.

Abstract: A process for producing a group III nitride compound semiconductor light emitting device, the group III nitride compound semiconductor light emitting device and a lamp, having excellent producability and excellent light emitting characteristics are provided. Such a process for producing a group III nitride semiconductor light emitting device is a process for producing a group III nitride semiconductor light emitting device having a semiconductor layer 20 constituted by laminating an n-type semiconductor layer, a light-emitting layer 15 and a p-type semiconductor layer 16.

Abstract: According to one embodiment, a server apparatus includes a memory which stores a second management table which associates telephone IDs of external telephone terminals to be connected to the external communication network with user IDs of external data terminals to be connected to the external communication network, and a controller which refers to the first and the second management tables, and executes communication connections among the data terminals to be associated with the telephone IDs of the telephone terminals and the external data terminals to be associated with the telephone IDs of the external telephone terminals based on a reference results of the first and the second management tables, when the call connections are established among the telephone terminals and the external telephone terminals in accordance with connection requests generated from the telephone terminals.

Abstract: According to one embodiment, a communication system includes a plurality of communication terminals and a server apparatus, the server apparatus includes a first memory stores a group table which correlates the connection information with the groups, a terminal ID of a first communication terminal, and a terminal ID of a second communication terminal, a notifying unit refers to the group table, notify a first communication terminal in each group of a server ID, based on the result of reference, and a first transmitter compares the terminal ID included in the acquisition request with terminal IDs in the group table, transmits adequate connection information to the first communication terminal, based on the result of comparison, and the first communication terminal includes a second memory stores the server ID, a second transmitter transmits the connection information acquisition request to the server apparatus, a controller sets the connection information in the processor.

Abstract: According to one embodiment, a server apparatus includes a memory which stores a management table in which the user IDs are associated with communication bands and treatable data sizes in the communication network with one another, a comparator which refers to the management table in occurring communication requests, and compares respective communication bands and data sizes of a first and a second communication terminals to be objects of the data communication control out of the plurality of communication terminals based on the reference result, and a controller which decides communication bands and data sizes to be assigned between the first and the second communication terminals based on the comparison result from the comparator, and executes a data communication connection between the first and the second communication terminals by using the decided communication bands and the data sizes.

Abstract: According to one embodiment, a server apparatus includes a controller which selectively executes at least one of first processing of executing communication connections among data terminals to be respectively associated with a plurality of phone IDS included in the call information event, and second processing of making the conference processing unit execute communication-connecting among the data terminals to be respectively associated with the plurality of phone IDs included in the call information event, based on prescribed conditions, when conference connections among the plurality of phone terminals are established.

Abstract: According to one embodiment, a server apparatus includes a first memory which memorizes group tables respectively showing correspondence relations between groups constituted by dividing the plurality of data terminals and data IDs of data terminals belonging to these groups, a second memory which memorizes band tables respectively showing correspondence relations between combinations of the plurality of groups and bands usable among plurality of data terminals to be communication-connected, and a controller which refers to the group tables and the band tables based on data IDs associated with the phone IDs included in the call information event, when the call information event is received, and executes communication connections among data terminals corresponding to the data IDs based on the reference result to assign bands to the data terminals.

Abstract: According to one embodiment, a server apparatus includes a memory which stores a management table in which the user IDs are caused to correspond to pieces of setting information representing functions/states of the data terminals, and a controller which updates the setting information of the corresponding first data terminal of said plurality of data terminals in the management table, in generation of an updating request of the setting information, and notifies a plurality of second data terminals different from the first data terminal of the updated setting information.

Abstract: According to one embodiment, a server apparatus includes a communication management memory which stores a communication management table, in which the data IDs are associated with state information showing communication connection states among the plurality of data terminals, when the communication connections among the plurality of the data terminals are established, a determining unit to refer the communication management table, based on the data IDs associated with the telephone IDs included in the call information event in receiving the call information event and determine presence/absence of a change in the communication connection states among data terminals corresponding to the data IDs based on the reference result, and a controller to update state information corresponding to the data IDs in the communication management table and execute communication connections/disconnections among the relevant data terminals based on the updated state information.

Abstract: According to one embodiment, a communication system includes a plurality of communication terminals are connected to a communication network and a server apparatus which are connected to the communication network, the server apparatus includes a first renewing unit to renew the network configuration information in the second management table and a first transmitter which reads out the network configuration information stored in the second management table in response to an acquisition request for the network configuration information to transmit the corresponding network configuration information to a communication terminal of a request origin, and the plurality of the communication terminals include a second transmitter which transmits the acquisition request for the network configuration information to the server apparatus, and a second renewing unit to renew the network configuration information stored in the first management table based on the network configuration information in response to the transmiss

Abstract: According to one embodiment, a server apparatus includes a detector which detects a failure of communication between the telephone exchange apparatus and the server apparatus, a restoring unit which restores a connection between the telephone exchange apparatus and the server apparatus by recovering the failure based on a detection result of the detector, an acquiring unit which acquires state information regarding an operation of the plurality of telephone terminals from the telephone exchange apparatus, after the connection between the telephone exchange apparatus and the server apparatus is restored, and a controller which performs data communication between first and second data terminals associated with first and second telephone terminals between which a call is made, based on the state information acquired by the acquiring unit.

Abstract: According to one embodiment, a server apparatus includes a memory which stores a management table indicating a correspondence relation between the terminal IDs contained in a call information event from the telephone exchange apparatus and status information indicating the call connected status of the telephone terminals, when the call connection is established between telephone terminals, a decision unit to refer to the management table based on terminal IDs contained in the received call information event and decides the presence or absence of a change in the call connected status of telephone terminals corresponding to the terminal IDs, and a controller which updates the status information corresponding to the terminal IDs in the management table, when the decision by the decision unit is presence, and establishes a data communication connection between data terminals associated with the terminal IDs of telephone terminals to be connected, based on the updated status information.