Nec Corporation

Seiko Instruments Inc

Disco Corporation

Olympus Optical Company, Ltd.

Nambu Co., Ltd

Hiroshi Kitamura

Masao Kasuga

Masaru Nakamura

Takashi Mori

Kazuya Hirata

Yoshiaki Kobayashi

Kentaro Iizuka

Satoshi Komatsu

Masataka Nagura

Nobuo Tsukada

Jun Hirotomi

Shigeyoshi Shima

Naoki Omiya

Kazuhiko Harasaki

Tatsunori Inoue

Motomi Kitano

Shinichiro Motoyoshi

Kazushi Nomura

A wafer producing apparatus for producing an SiC wafer from a single-crystal SiC ingot includes an ingot grinding unit, a laser applying unit that applies a pulsed laser beam having a wavelength that is transmittable through the single-crystal SiC ingot while positioning a focal point of the pulsed laser beam in the single-crystal SiC ingot at a depth corresponding to the thickness of the SiC wafer to be produced from an upper surface of the single-crystal SiC ingot, thereby forming a peel-off layer in the single-crystal SiC ingot, a wafer peeling unit that peels the SiC wafer off the peel-off layer in the single-crystal SiC ingot, and a delivery unit assembly that delivers the single-crystal SiC ingot between the ingot grinding unit, the laser applying unit, and the wafer peeling unit.

Wafer producing apparatus

A communication device () having at least one interface used in communication including a default router in a path includes: an ID determination unit () that determines whether or not a Zone ID is assigned to a communication request including a link local address of Internet Protocol version 6 (IPv6) as a destination address; and an ID supplementing unit () that, when it is determined that the Zone ID is not assigned, acquires an interface ID for identifying the interface as a default interface ID and adds the acquired default interface ID as the Zone ID of the communication request.

Communication device, communication method, and program

A communication control device includes: a parameter storage unit that stores each entry containing a communication parameter learned through a communication between communication nodes, a communication source IP address related to the communication, and a communication destination IP address related to the communication; and a parameter acquiring unit that acquires a communication source IP address and a communication destination IP address related to a communication to be newly started, extracts, from among plural entries stored in the parameter storage unit, at least one entry in which the number of bits matched between communication source IP addresses or communication destination IP addresses is more than or equal to a predetermined lower limit value which is lower than the total number of bits in an IP address, and acquires, on the basis of the extracted entry, an initial value of a communication parameter to be used in the communication to be newly started.

Communication control device and communication control method

A communication information detecting device includes: a receiving unit that receives an address resolution request message transmitted from a start-point communication device through L2 broadcast and having an IP address of a target communication device set therein as a target address for L2 address resolution; a generating unit that generates an address resolution request message having the IPv6 address of the target communication device, which is set in the received address resolution request message, set therein as a target address for L2 address resolution; a follow-up processing unit that transmits this address resolution request message through L2 broadcast; a receiving unit that receives an address resolution reply message returned from the target communication device in response to the address resolution request message; and a detecting unit that extracts an L2 address and an IP address concerning the target communication device from the address resolution reply message.

Communication information detecting device and communication information detecting method

A wafer is processed by transferring a wafer to a holding surface of a chuck table by using a suction pad. The front side of the wafer is held through a protective tape on the holding surface under suction. The suction pad is then removed from the back side of the wafer and the back side of the wafer is ground, thereby thinning the wafer and also dividing the wafer into individual device chips. The wafer is mounted on the holding surface while held by the suction pad. The wafer is sandwiched between the suction pad and the holding surface when the suction force is removed. A suction force is applied to the holding surface to thereby hold the front side of the wafer through the protective tape on the holding surface, and the suction pad is then removed from the back side of the wafer.

Wafer processing method

A node information detection apparatus identifies the type of an Operating System (OS) operating on a node that is connected via a network. A message transmission unit transmits a transmission message to be responded to through IPv6 protocol stack processing that is executed at a kernel level implemented in at least one or more types of OSs. A message reception unit receives a response message from the node that received the transmission message. An OS type identification unit identifies the type of OS operating on the node on the basis of the contents of the response message received from the node or on the basis of presence or absence of a response message from the node.

Node information detection apparatus, node information detection method, and program

Provided is a communication system that includes first and second communication devices operating in conformance with IPv6 requirements, in which the first communication device () determines whether an own IP address for communication is utilized or not by monitoring a communication status, generates a response request message requesting a response message to the second communication device when the own IP address is determined to be no longer required, designates the own IP address as a destination of the response message in the response request message, and transmits the response request message to the second communication device () during a period when a Neighbor Cache entry related to the own IP address in the second communication device is in STALE state after transition from REACHABLE state.

Extensions to address utilization and neighbor cache processing functions of IPv6

An identification information management system according to the present invention comprises a plurality of terminals communicable with servers and a site management apparatus which manages site containing the terminals. The terminal has an identification information processing unit which assuming that a one-way hash function is f(x) and a terminal-unique ID is a, generates values x satisfying a conditional equation f(x)=a as identification information. When acquiring multiple items of identification information, the site management apparatus substitutes the identification information as the value x into f(x) and decides whether f(x)=a is satisfied, thereby deciding the terminals.

Identification information management system, method of generating and managing identification information, terminal, and generation and management programs

A node information storage unit stores an entry in which an address and a record type are associated with a host name. An address translating unit translates an address of a record type different from a record type received from a terminal device in the entry into an address of the received record type based on a predetermined rule. An entry searching unit searches the node information storage unit, and specifies an entry corresponding to a host name received from the terminal device. A search result transmitting unit transmits an address included in the specified entry to the terminal device.

Name database server, name resolution system, entry search method and entry search program

An address determination apparatus that determines a valid address that a communication apparatus designates as the address at which a communication starts for indicating the origin of a transmission includes: a duplicate valid address determination means that selects a tentative address, and by an inquiry on a network, determines the existence of a valid address that duplicates the tentative address in the network; a memory means that stores the tentative address as an uncertain address when it is determined by the duplicate valid address determination means that there is no valid address that duplicates the tentative address in the network; and an address determination means that, when a communication apparatus begins communication that designates the address at which the transmission originates, determines the uncertain address that is stored in the memory means as the valid address designated as the address at which the transmission of the communication apparatus originates.

Address determination apparatus, communication system, address determination method, and program

A node information storage means stores an entry of node information in which at least an address and a record type are associated with a host name. A search target record deciding means decides a record type of an entry of a search target from a received virtual record type based on a search rule that is a rule specifying a record type of a search target according to a virtual record type. An entry searching means searches the node information storage means, and specifies an entry that corresponds to the entry specifying information received from the terminal device and has the record type decided by the search target record deciding means. A search result transmitting means transmits node information included in the entry specified by the entry searching means to the terminal device.

The present invention provides a network connection method which prevents connection by virus-infected communication devices or communication devices intended for unauthorized access to a network, and enables connection to the network in a simple manner. A user of a requestor communication device connects to a main network by inserting a cable of the communication device to a port of a network device. When the requestor communication device is connected one-on-one to a reception box by a check-in network inside the network device, check-in is performed using the reception box. When the reception box determines through check-in processing that the requestor communication device satisfies connection qualifications, the reception box switches the network, to which the requestor communication device will be connected, from the check-in network to the main network. The requestor communication device then makes a transition to actual use of the main network.

Communication system, network for qualification screening/setting, communication device, and network connection method

Provided is a communication device including: an address acquiring unit that acquires an IP address; a generating unit that generates, on the basis of the acquired IP address, a special reverse lookup domain name which is different from a standard reverse lookup domain name serving as a key for obtaining a domain name corresponding to the acquired IP address through a reverse DNS lookup; and a reverse-DNS-lookup processing unit that performs the reverse DNS lookup using the generated special reverse lookup domain name as a key, and acquires node descriptor data, which is different from the domain name and is associated with a communication device corresponding to the IP address acquired by the address acquiring unit.

Communication device, communication system, and communication method

A DNS name resolution system according to the present invention has a DNS server; a terminal which generates and transmits a DNS query packet containing DNS name information described in accordance with a specific description method and whose destination is said DNS server; and an override agent which is disposed along a communication path between the terminal and the DNS server. The override agent has a capture unit which captures a DNS query packet transmitted from the terminal; an analysis unit which stores in advance information concerning the specific description method based on which the DNS name information was described by the terminal, analyzes the DNS name information contained in the DNS query packet captured by the capture unit based on the specific description method, and selects the information for reply to the terminal based on the analysis results; and a reply unit which generates and transmits a DNS response packet containing the information for reply selected by the analysis unit and whose destination is the terminal.

DNS name resolution system, override agent, and DNS name resolution method

The present invention provides a qualification screening system which is capable of performing qualification screening on a device under qualification screening using a status of information to be updated that is retained by the device under qualification screening without having to know concrete procedures or methods for updating such information. A qualification screening device estimates the status of information to be updated that is retained by the device under qualification screening from a time at which an information update program that updates the information to be updated, which is independent of update procedures or methods, was activated and update processing was last updated, and compares the information with a time of a scheduled issuance of information to be updated, retained in qualification screening condition information of the qualification screening device itself, to perform qualification screening. A common time at which information exchange was performed between the qualification screening device and the device under qualification screening is used as reference in order to perform an effective comparison using time information among devices that are not synchronized.

Growing community of inventors

Tokyo, Japan

Hiroshi Kitamura