Patents Assigned to Fujitsu Limtied
  • Patent number: 11113438
    Abstract: A fluid simulating method includes extracting, based on positional information included in particle data of particles during a predetermined time period, a first particle with a predetermined value or less of distance from a fluid particle and a second particle with the predetermined value or less of distance from the first particle from among wall boundary particles related to a boundary with a wall. The method may also include setting a boundary condition of a pressure Poisson equation for calculating pressure to be applied to each of the particles, and calculating pressure to be applied to each of the particles, based on the extracted first particle and the extracted second particle. The method may also include calculating particle data of the particles during a next time period based on the calculated pressure.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: September 7, 2021
    Assignee: FUJITSU LIMTIED
    Inventors: Tamon Suwa, Masaki Kazama
  • Patent number: 10725999
    Abstract: A non-transitory computer-readable storage medium storing therein an extraction program that causes a computer to execute a process includes: referring to a storage that stores correspondence information associating extraction attributes which match respective attributes of each data element included in a plurality of data elements, from among extraction attributes included in verification rules, and verification rules which include the extraction attributes, and identifying, for each of the plurality of data elements and for each attribute, the verification rule including the extraction attributes matching each attribute; identifying, for each of the plurality of data elements, a common verification rule which is common in the verification rules corresponding to the attributes of each data element; and extracting, for each verification rule, data for which the verification rule has been identified as the common verification rule.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: July 28, 2020
    Assignee: FUJITSU LIMTIED
    Inventors: Hitoshi Okumura, Takahide Muramoto, Masaru Uchida
  • Patent number: 9753084
    Abstract: A debug circuit, includes: a controller to start a debugging of a circuit based on first and second code values, the first code value obtained by encoding a first sequence included in a processing sequence indicating a condition for a process of the circuit, the second code value obtained by encoding a second sequence subsequent to the first sequence, wherein the controller performs to: calculate a third code value as a current code value based on signals input and output to the circuit; output, as a fourth code value, a previous third code value that is earlier than the current code value; detect the first sequence by comparing a difference between the third code value and the fourth code value with the first code value; calculate a first expected value of the third code value; and perform the process when the third code value and the first expected value match.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: September 5, 2017
    Assignee: FUJITSU LIMTIED
    Inventor: Yutaka Tamiya
  • Patent number: 9680511
    Abstract: A distortion compensator, includes: an input terminal configured to receive a transmission signal; a processor configured to perform operations to process the transmission signal, wherein the operations includes: compensating a nonlinear distortion of an amplifier which amplifies a power of the transmission signal, by using a distortion compensation coefficient corresponding to an amplitude value of the transmission signal; calculating a difference between a power value of the transmission signal and a power value of a feedback signal from the amplifier; calculating an imaginary part of a first complex vector based on an error between the transmission signal and the feedback signal in a cartesian coordinate system; and updating the distortion compensation coefficient by using a second complex vector of which a real part is the difference, and an imaginary part is the imaginary part of the first complex vector.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: June 13, 2017
    Assignee: FUJITSU LIMTIED
    Inventor: Mitsuharu Hamano
  • Patent number: 8867396
    Abstract: A method for device identification includes determining a mass event has occurred in a wireless network from a reception of a plurality of signals each having a last gasp message, sampling a plurality of mapped zones associated with a base station, identifying which mapped zones are associated with a disconnected endpoint in a zone list, determining a length of time of the mass event, and selectively providing the zone list to identify disconnected endpoints based at least upon the length of time of the mass event. Each mapped zone includes a plurality of wireless device endpoints associated with the mapped zone. The sampling includes determining whether any of a subset of the endpoints associated with the given mapped zone are disconnected from the wireless network.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: October 21, 2014
    Assignee: Fujitsu Limtied
    Inventors: Dorin Viorel, Akira Ito
  • Patent number: 8140121
    Abstract: There is provided a base station apparatus which allocates communication bands for terminal units from an available communication band, and performs wireless communications with the terminal units using the allocated communication bands, including: a priority table storing priority information used for deriving a priority of the communication; a detecting part detecting a situation change concerning the communications; a band derivation part deriving communication bands required for the communications with terminal units to communicate, when the detecting part detects the situation change; a priority derivation part deriving priorities of the communications with the terminal units on the basis of the priority information stored in the priority table; and an allocating part allocating the communication bands derived by the band derivation part for the wireless communications with the terminal units in the order of descending priorities derived by the priority derivation part.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: March 20, 2012
    Assignee: Fujitsu Limtied
    Inventors: Ryuichi Matsukura, Shingo Fujimoto, Motoshi Sumioka, Ryo Miyamoto
  • Publication number: 20080220223
    Abstract: To provide a material including: a silicon-containing polymer having at least an alkali-soluble group and is represented by the following general formula (1); and an organic solvent capable of dissolving the silicon-containing polymer. (SiO4/2)a(R1tSiO(4-t)/2)b(O1/2R2)c ??general formula (1) where R1 represents at least one of a monovalent organic group, hydrogen atom and hydroxyl group, R2 represents at least one of a monovalent organic group and hydrogen atom (where R1 and R2 each may appear twice or more, and at least one of R1 and R2 contains an alkali-soluble group), “t” represents an integer of 1 to 3, “a,” “b,” and “c” represent the relative proportions of their units (where a?0, b?0 and c?0, and “a,” “b,” and “c” are not 0 at the same time), and (R1tSiO(4-t)/2)b may appear twice or more.
    Type: Application
    Filed: July 31, 2007
    Publication date: September 11, 2008
    Applicant: FUJITSU LIMTIED
    Inventors: Miwa KOZAWA, Koji NOZAKI, Takahisa NAMIKI
  • Patent number: 6985315
    Abstract: A magnetic disk evaluation apparatus includes an evaluation head for evaluating a magnetic disk, and a support member for supporting the evaluation head. The support member supports the evaluation head in a state where a flying surface of the evaluation head and a surface of a magnetic disk make a flying pitch angle of 95 ?rad or more.
    Type: Grant
    Filed: January 27, 2002
    Date of Patent: January 10, 2006
    Assignee: Fujitsu Limtied
    Inventors: Toru Yokohata, Yoshiharu Kasamatsu, Satoru Momose, Takayuki Yamamoto
  • Patent number: 6605414
    Abstract: A method for manufacturing a magnetoresistance head of the present invention comprises the steps of forming an organic film on a multilayered film constituting a magnetoresistance device, forming an upper film formed of resist or inorganic film on the organic film, patterning the organic film and the upper film, cutting into edges of the organic film patterns from edges of the upper film patterns inwardly to such an extent that particles of the thin film being formed on the upper film and the multilayered film do not contact to side portions of the organic film patterns.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: August 12, 2003
    Assignee: Fujitsu Limtied
    Inventors: Keiji Watanabe, Koji Nozaki, Miwa Igarashi, Yoko Kuramitsu, Ei Yano, Takahisa Namiki, Hiroshi Shirataki, Keita Ohtsuka, Michiaki Kanamine, Yuji Uehara
  • Patent number: 6483155
    Abstract: A semiconductor device has first and second active regions defined on the principal surface of a silicon substrate, a first n-channel MOS transistor formed in the first active region and having first extension regions and first pocket regions being deeper than the first extension regions and being doped with indium at a first concentration, and a second n-channel MOS transistor formed in the second active region and having second extension regions and second pocket regions being deeper than the second extension regions and being doped with indium at a second concentration lower than the first concentration. Boron ions may be implanted into the second pocket regions. The pocket regions can be formed by implanting indium ions and an increase in leak current to be caused by indium implantation can be reduced.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: November 19, 2002
    Assignee: Fujitsu Limtied
    Inventors: Hajime Wada, Kenichi Okabe, Kou Watanabe