Abstract: A first aspect of the present invention is carbon fiber wherein the surface of a monofilament has a center line average roughness Ra of 6.0 nm or more and 13 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. A second aspect of the present invention is carbon fiber precursor acrylic fiber wherein the surface of a monofilament has a center line average roughness Ra of 18 nm or more and 27 nm or less, and the monofilament has a long diameter/short diameter ratio of 1.11 or more and 1.245 or less. The carbon fiber according to the first aspect is obtained by stabilizing and carbonizing under specific conditions the carbon fiber precursor acrylic fiber according to the second aspect.

Abstract: There is provided a nozzle plate of an inkjet head, the nozzle plate including: a first surface that is bonded to an upper layer substrate by an adhesive; and a second surface in which an opening of a nozzle that ejects an ink is provided. A step is formed at an edge of the first surface.

Abstract: Disclosed is a method of manufacturing, a metal nozzle plate, in which is formed a nozzle for discharging a liquid and that is to be bonded with adhesive to a head chip provided with an actuator for discharging the liquid, the method including: forming the nozzle in a metal plate-like member; forming a groove in the metal plate-like member; and performing exterior processing with respect to the nozzle plate.

Abstract: Disclosed is a method of manufacturing, a metal nozzle plate, in which is formed a nozzle for discharging a liquid and that is to be bonded with adhesive to a head chip provided with an actuator for discharging the liquid, the method including: forming the nozzle in a metal plate-like member; forming a groove in the metal plate-like member; and performing exterior processing with respect to the nozzle plate.

Abstract: An inkjet head and a production method wherein the inkjet head is produced by forming a film on a head chip having a channel member with an ink channel formed thereon and joining an end surface of the head chip coated with the film to a nozzle plate. The method includes a step of applying an adhesive containing spherical particles, whose volume average particle diameter is in the range of 0.95*Rz (MV) to 2.0*Rz (MV), in the range of 0.1 volume % to 10.0 volume % to at least one of the end surface of the head chip and a joint surface of the nozzle plate and then joining the nozzle plate.

Abstract: An inkjet head and a production method wherein the inkjet head is produced by forming a film on a head chip having a channel member with an ink channel formed thereon and joining an end surface of the head chip coated with the film to a nozzle plate. The method includes a step of applying an adhesive containing spherical particles, whose volume average particle diameter is in the range of 0.95*Rz (MV) to 2.0*Rz (MV), in the range of 0.1 volume % to 10.0 volume % to at least one of the end surface of the head chip and a joint surface of the nozzle plate and then joining the nozzle plate.

Abstract: To provide an information distribution system which forms a tree-shaped hierarchical structure and distributes contents information, and in which it is possible for a connection destination of a terminal apparatus newly participating in a hierarchical structure of a distribution channel to be selected by a user of the terminal apparatus. A terminal apparatus, when participating in a hierarchical structure of a certain distribution channel, acquires information on the hierarchical structure, and displays participation statuses in the hierarchical structure of a plurality of terminal apparatus configuring the hierarchical structure in a predetermined topology information display area 22. A user of a terminal apparatus selects at least one terminal apparatus, among the plurality of terminal apparatus whose participation statuses are displayed, as a connection destination candidate, and connects the connection destination candidate as an upper layer terminal apparatus.

Abstract: To provide a content distribution system, method, and the like wherein, in a distribution aspect in which, being made a tree-shaped hierarchical structure, content data are forwarded from a content distribution apparatus at an apex to a downstream terminal apparatus, there is no need to separately provide a connection management server for managing the tree-shaped hierarchical structure. In a content distribution system in which a content distribution apparatus and a plurality of terminal apparatus participate, when configuring a distribution aspect in which the terminal apparatus are logically connected in a tree-shaped hierarchical structure, with the content distribution apparatus as an apex, and content data are sequentially forwarded from the content distribution apparatus to a downstream terminal apparatus, one terminal apparatus among the plurality of terminal apparatus participating in the content distribution system is caused to manage a connection condition of the tree-shaped hierarchical structure.

Abstract: A server device which can communicate with a node device in a contents distributed storage system stores contents attribute information obtained from a predetermined device which stores the contents attribute information, and creates a Web page in which the contents attribute information is inserted. A node device receive a page request of a Web page from any of node devices, and transmits the created Web page, to a node device which has transmitted the page request, in accordance with the page request.

Abstract: A disk controller includes a determining unit for determining whether check codes added to data read from a disk drive are first type check codes or second type check codes, and a check code conversion unit. The check code conversion unit includes conversion unit for converting, if the check codes added to the read data are first type check codes, the first type check codes into second type check codes and a writing unit for writing the data provided with the second type check codes into the disk drive. The disk controller also includes a control unit for performing background processing, which is performed at a time different from processing performed when a data read request or a data write request is sent from a host device, by reading data provided with check codes from the disk drive and by starting check code conversion processing performed by the check code conversion unit.

Abstract: In a storage system, a disk device performs recovery and transfers read data to a control device, and the control device judges the validity of the recovery to prevent a transfer of erroneous data. A control device read-accesses a disk device, and the disk device returns read data and a recovered read error response. A control device, at the time of an initial recovered read error, performs a retry of a similar command, and if an error does not occur for read commands including the retry read command, judges the data to be valid. Uncertain data (suspect data) upon occurrence of a recovered read error is restored through disk retry, and accurate read data can be transferred to the host.

Abstract: To provide a content distribution system, method, and the like wherein, in a distribution aspect in which, being made a tree-shaped hierarchical structure, content data are forwarded from a content distribution apparatus at an apex to a downstream terminal apparatus, there is no need to separately provide a connection management server for managing the tree-shaped hierarchical structure. In a content distribution system in which a content distribution apparatus and a plurality of terminal apparatus participate, when configuring a distribution aspect in which the terminal apparatus are logically connected in a tree-shaped hierarchical structure, with the content distribution apparatus as an apex, and content data are sequentially forwarded from the content distribution apparatus to a downstream terminal apparatus, one terminal apparatus among the plurality of terminal apparatus participating in the content distribution system is caused to manage a connection condition of the tree-shaped hierarchical structure.

Abstract: Disclosed is an adhesive agent which is curable and has flexibility at low temperature, and further has resistant to solvent type ink. The adhesive agent includes a base and an activator, wherein the base includes at least any one of: bisphenol F epoxy compound; bisphenol F epoxy compound mixed with an epoxy compound having three or more epoxy groups; and bisphenol A epoxy compound mixed with an epoxy compound having three or more epoxy groups, wherein the activator includes: 100 parts by mass of polyamide composed of a condensation reaction product of C36 unsaturated fatty acid dimer and polyamine; and 5 to 200 parts by mass of alicyclic polyamine, and wherein the base is mixed with the activator with a ratio of 10 to 200 parts by mass of the activator with respect to 100 parts by mass of the base.

Abstract: To provide an information distribution system which forms a tree-shaped hierarchical structure and distributes contents information, and in which it is possible for a connection destination of a terminal apparatus newly participating in a hierarchical structure of a distribution channel to be selected by a user of the terminal apparatus. A terminal apparatus, when participating in a hierarchical structure of a certain distribution channel, acquires information on the hierarchical structure, and displays participation statuses in the hierarchical structure of a plurality of terminal apparatus configuring the hierarchical structure in a predetermined topology information display area 22. A user of a terminal apparatus selects at least one terminal apparatus, among the plurality of terminal apparatus whose participation statuses are displayed, as a connection destination candidate, and connects the connection destination candidate as an upper layer terminal apparatus.

Abstract: An inkjet head includes: an electrostrictive actuator having an ink channel to eject ink; and a manifold member for supplying the ink to the ink channel, wherein the actuator and the manifold member are jointed with an adhesive containing adhesive material and balloon filler.

Abstract: A connection management device for managing connection mode between node devices in a tree type broadcast system formed by participation of all or a part of a plurality of node devices included in a distributed content storing system where a plurality of content data are distributed and stored in the plurality of node devices and each of the plurality of node devices provides content data stored in the own node through a network in response to a request from the other node devices, to thereby sequentially transfer the content data broadcasted by the broadcasting device from the node devices on upper hierarchies to the node devices on lower hierarchies, the connection management device including: a memorizing device; a participation request information receiving device; a connection target determining device; and a node information transmission device.

Abstract: Disclosed is an adhesive agent which is curable and has flexibility at low temperature, and further has resistant to solvent type ink. The adhesive agent includes a base and an activator, wherein the base includes at least any one of: bisphenol F epoxy compound; bisphenol F epoxy compound mixed with an epoxy compound having three or more epoxy groups; and bisphenol A epoxy compound mixed with an epoxy compound having three or more epoxy groups, wherein the activator includes: 100 parts by mass of polyamide composed of a condensation reaction product of C36 unsaturated fatty acid dimer and polyamine; and 5 to 200 parts by mass of alicyclic polyamine, and wherein the base is mixed with the activator with a ratio of 10 to 200 parts by mass of the activator with respect to 100 parts by mass of the base.

Abstract: A disk controller includes a determining unit for determining whether check codes added to data read from a disk drive are first type check codes or second type check codes, and a check code conversion unit. The check code conversion unit includes conversion unit for converting, if the check codes added to the read data are first type check codes, the first type check codes into second type check codes and a writing unit for writing the data provided with the second type check codes into the disk drive. The disk controller also includes a control unit for performing background processing, which is performed at a time different from processing performed when a data read request or a data write request is sent from a host device, by reading data provided with check codes from the disk drive and by starting check code conversion processing performed by the check code conversion unit.

Abstract: In a storage system, a disk device performs recovery and transfers read data to a control device, and the control device judges the validity of the recovery to prevent a transfer of erroneous data. A control device read-accesses a disk device, and the disk device returns read data and a recovered read error response. A control device, at the time of an initial recovered read error, performs a retry of a similar command, and if an error does not occur for read commands including the retry read command, judges the data to be valid. Uncertain data (suspect data) upon occurrence of a recovered read error is restored through disk retry, and accurate read data can be transferred to the host.

Abstract: A RAID device changes the redundancy of the RAID configuration, while allows various RAID level conversions and capacity increase. Using new and old RAID configuration definition information which define at least a RAID level and a number of logical devices, the control unit performs RLU mapping based on the respective RAID configuration definition information, and performs staging and write back to change the RAID configuration. Therefore various RAID level conversions and capacity increase can be implemented.