Patents by Inventor Akihiro Tamura

Akihiro Tamura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230083764
    Abstract: A communication device includes a connector inserted into a first device, a communication circuit which performs wireless communication with a second device, and a processing circuit. The processing circuit is programmed to communicate with the first device via the connector to control the communication circuit, wherein the processing circuit is configured to execute generating a first signal representing that the connector is pulled out from the first device when the processing circuit detects that the connector is pulled out from the first device, and transmitting the first signal to the second device by controlling the communication circuit.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 16, 2023
    Inventors: Nozomi SATO, Shinya UEMA, Daisuke MIMA, Akihiro TAMURA
  • Patent number: 11316710
    Abstract: A control system includes a master device and one or a plurality of slave devices connected to the master device via a field network. In a storage unit of each slave device, a node address is arranged in a unique region for each model of the slave devices. The control system further includes an information providing part which provides, in any slave device, information for specifying the region in which the node address is stored in the storage unit to the master device.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: April 26, 2022
    Assignee: OMRON Corporation
    Inventors: Shigenori Sawada, Akihiro Tamura, Yuji Ikeo
  • Patent number: 11301624
    Abstract: In order to solve a problem that the level of precision in inferring a crosslingual topic of documents or words in a non-parallel corpus associated in the document level is not high, a topic inferring apparatus includes: a word distribution information storage unit in which word distribution information is stored in association with each of two or more languages; a document topic distribution generating unit that acquires document topic distribution information of a multilingual document set; a segment topic distribution generating unit that acquires segment topic distribution information of each segment, using the document topic distribution information; and a word topic determining unit that determines, for each word contained in two or more documents contained in the multilingual document set, a topic of each word using the segment topic distribution information. Accordingly, it is possible to improve the level of precision in inferring a topic.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: April 12, 2022
    Assignee: NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY
    Inventors: Akihiro Tamura, Eiichiro Sumita, Yutaka Kidawara
  • Publication number: 20210166135
    Abstract: In order to solve a problem that the level of precision in inferring a crosslingual topic of documents or words in a non-parallel corpus associated in the document level is not high, a topic inferring apparatus includes: a word distribution information storage unit in which word distribution information is stored in association with each of two or more languages; a document topic distribution generating unit that acquires document topic distribution information of a multilingual document set; a segment topic distribution generating unit that acquires segment topic distribution information of each segment, using the document topic distribution information; and a word topic determining unit that determines, for each word contained in two or more documents contained in the multilingual document set, a topic of each word using the segment topic distribution information. Accordingly, it is possible to improve the level of precision in inferring a topic.
    Type: Application
    Filed: February 10, 2017
    Publication date: June 3, 2021
    Inventors: Akihiro TAMURA, Eiichiro SUMITA, Yutaka KIDAWARA
  • Publication number: 20210044449
    Abstract: A control system includes a master device and one or a plurality of slave devices connected to the master device via a field network. In a storage unit of each slave device, a node address is arranged in a unique region for each model of the slave devices. The control system further includes an information providing part which provides, in any slave device, information for specifying the region in which the node address is stored in the storage unit to the master device.
    Type: Application
    Filed: March 20, 2019
    Publication date: February 11, 2021
    Applicant: OMRON Corporation
    Inventors: Shigenori SAWADA, Akihiro TAMURA, Yuji IKEO
  • Patent number: 10785014
    Abstract: Provided is a computation device including a communication interface; a first transmission control part for sending a first communication frame at every predetermined cycle via a transmission path; a second transmission control part for sending a second communication frame in response to an arbitrary event request; and a priority management part. Upon receiving an issuance request of a second event request from a second event issuance part, the priority management part waits for completion of sending processing for a second communication frame corresponding to a first event request currently processed by the second transmission control part, and permits issuance of the second event request to the second event issuance part. The second transmission control part suspends processing for a subsequent first event request following the first event request currently processed until completion of processing for the second event request is complete.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: September 22, 2020
    Assignee: OMRON Corporation
    Inventors: Akihiro Tamura, Makoto Iwai, Shigeyuki Eguchi, Yasunori Fukuda, Kenichi Iwami, Kazunari Miyake
  • Publication number: 20190372746
    Abstract: Provided is a computation device including a communication interface; a first transmission control part for sending a first communication frame at every predetermined cycle via a transmission path; a second transmission control part for sending a second communication frame in response to an arbitrary event request; and a priority management part. Upon receiving an issuance request of a second event request from a second event issuance part, the priority management part waits for completion of sending processing for a second communication frame corresponding to a first event request currently processed by the second transmission control part, and permits issuance of the second event request to the second event issuance part. The second transmission control part suspends processing for a subsequent first event request following the first event request currently processed until completion of processing for the second event request is complete.
    Type: Application
    Filed: November 27, 2017
    Publication date: December 5, 2019
    Applicant: OMRON Corporation
    Inventors: Akihiro TAMURA, Makoto IWAI, Shigeyuki EGUCHI, Yasunori FUKUDA, Kenichi IWAMI, Kazunari MIYAKE
  • Patent number: 10354010
    Abstract: An information processing system to increase weights of words that are related to a text, but that do not explicitly occur in the text, in a weight vector representing the text, is provided. An adjusting system (100) includes a distance storing unit (110) and an adjusting unit (120). The distance storing unit (110) stores distances between any two terms of a plurality of terms. The distance between two terms becomes smaller as the two terms are semantically more similar. The adjusting unit (120) adjusts a weight of each term of the plurality of terms in a weight vector including weights of the plurality of terms and representing a text, on the basis of a distance between each term and other term in the weight vector and a weight of the other term.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: July 16, 2019
    Assignee: NEC CORPORATION
    Inventors: Daniel Georg Andrade Silva, Akihiro Tamura, Masaaki Tsuchida
  • Patent number: 10049105
    Abstract: [Object] An object is to provide an apparatus for attaining highly precise word alignment. [Solution] The apparatus includes: selecting means receiving a bilingual sentence pair and a word alignment for the bilingual sentence pair, for successively selecting words fj of a sentence in a first language in a prescribed order; and a recurrent neural network (RNN) 100, computing, for all words of the sentence in the first language, a score 102 representing a probability that a word pair consisting of the word fj and a word ea_{j} aligned with the word fj by a word alignment aj in a second language of the bilingual sentence pair is a correct word pair, and based on this score, for computing a score of the word alignment aj. When computing a score of word pair (fj, ea_{j}), RNN 100 computes a score 102 of the word pair (fj, ea_{j}) based on all word alignments a1j-1 selected by the selecting means prior to the word fj of the word pair (fj, ea_{j}), of the word alignments aj, by means of a recurrent connection 118.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: August 14, 2018
    Assignee: National Institute of Information and Communications Technology
    Inventors: Akihiro Tamura, Taro Watanabe, Eiichiro Sumita
  • Publication number: 20180138828
    Abstract: Reliability of a semiconductor device is improved. A third semiconductor chip on which a control circuit is formed, and a first semiconductor chip of a plurality of IGBT chips are electrically connected via a high-side relay board. That is, the first semiconductor chip and the third semiconductor chip are electrically connected via a first wire, a high-side relay board and a second wire. Similarly, the third semiconductor chip on which the control circuit is formed and a second semiconductor chip of a plurality of IGBT chips are electrically connected via a low-side relay board. That is, the second semiconductor chip and the third semiconductor chip are electrically connected via the first wire, the low-side relay board and the second wire.
    Type: Application
    Filed: January 11, 2018
    Publication date: May 17, 2018
    Inventors: Kuniharu MUTO, Koji BANDO, Takamitsu KANAZAWA, Ryo KANDA, Akihiro TAMURA, Hirobumi MINEGISHI
  • Publication number: 20180137100
    Abstract: An information processing system to increase weights of words that are related to a text, but that do not explicitly occur in the text, in a weight vector representing the text, is provided. An adjusting system (100) includes a distance storing unit (110) and an adjusting unit (120). The distance storing unit (110) stores distances between any two terms of a plurality of terms. The distance between two terms becomes smaller as the two terms are semantically more similar. The adjusting unit (120) adjusts a weight of each term of the plurality of terms in a weight vector including weights of the plurality of terms and representing a text, on the basis of a distance between each term and other term in the weight vector and a weight of the other term.
    Type: Application
    Filed: April 24, 2015
    Publication date: May 17, 2018
    Applicant: NEC Corporation
    Inventors: DANIEL GEORG ANDRADE SILVA, AKIHIRO TAMURA, MASAAKI TSUCHIDA
  • Patent number: 9906165
    Abstract: Reliability of a semiconductor device is improved. A third semiconductor chip on which a control circuit is formed, and a first semiconductor chip of a plurality of IGBT chips are electrically connected via a high-side relay board. That is, the first semiconductor chip and the third semiconductor chip are electrically connected via a first wire, a high-side relay board and a second wire. Similarly, the third semiconductor chip on which the control circuit is formed and a second semiconductor chip of a plurality of IGBT chips are electrically connected via a low-side relay board. That is, the second semiconductor chip and the third semiconductor chip are electrically connected via the first wire, the low-side relay board and the second wire.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: February 27, 2018
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kuniharu Muto, Koji Bando, Takamitsu Kanazawa, Ryo Kanda, Akihiro Tamura, Hirobumi Minegishi
  • Publication number: 20170068665
    Abstract: [Object] An object is to provide an apparatus for attaining highly precise word alignment. [Solution] The apparatus includes: selecting means receiving a bilingual sentence pair and a word alignment for the bilingual sentence pair, for successively selecting words fj of a sentence in a first language in a prescribed order; and a recurrent neural network (RNN) 100, computing, for all words of the sentence in the first language, a score 102 representing a probability that a word pair consisting of the word fj and a word ea_{j} aligned with the word fj by a word alignment aj in a second language of the bilingual sentence pair is a correct word pair, and based on this score, for computing a score of the word alignment aj. When computing a score of word pair (fj, ea_{j}), RNN 100 computes a score 102 of the word pair (fj, ea_{j}) based on all word alignments a1j-1 selected by the selecting means prior to the word fj of the word pair (fj, ea_{j}), of the word alignments aj, by means of a recurrent connection 118.
    Type: Application
    Filed: February 12, 2015
    Publication date: March 9, 2017
    Inventors: Akihiro TAMURA, Taro WATANABE, Eiichiro SUMITA
  • Publication number: 20170033710
    Abstract: Reliability of a semiconductor device is improved. A third semiconductor chip on which a control circuit is formed, and a first semiconductor chip of a plurality of IGBT chips are electrically connected via a high-side relay board. That is, the first semiconductor chip and the third semiconductor chip are electrically connected via a first wire, a high-side relay board and a second wire. Similarly, the third semiconductor chip on which the control circuit is formed and a second semiconductor chip of a plurality of IGBT chips are electrically connected via a low-side relay board. That is, the second semiconductor chip and the third semiconductor chip are electrically connected via the first wire, the low-side relay board and the second wire.
    Type: Application
    Filed: June 28, 2016
    Publication date: February 2, 2017
    Inventors: Kuniharu MUTO, Koji BANDO, Takamitsu KANAZAWA, Ryo KANDA, Akihiro TAMURA, Hirobumi MINEGISHI
  • Patent number: 9426368
    Abstract: The present disclosure provides a communication system which can shorten a data transfer time by realizing transmission and reception of data using two communicators. The present disclosure is a communication system which includes: a first device; and a second device, and in which the first device includes a first controller, the second device includes a second controller, the first controller and the second controller are connected through a first communicator and a second communicator, and the second controller switches and selectively executes one of a reception mode for receiving data from the first controller using the first communicator, and the second communicator and a transmission/reception mode for transmitting data to the first controller using the first communicator and receiving data from the first controller using the second communicator.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: August 23, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Akihiro Tamura
  • Patent number: 9150563
    Abstract: The present invention provides a compound having excellent regulating action on blood lipid level. The present invention provides a compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof, etc., wherein A represents a 5-membered nitrogen-containing aromatic heterocyclyl group; R1 represents COOH or the like; each R2 represents an alkyl or the like; each R3 represents an optionally substituted phenyl, an optionally substituted phenylalkyl, or the like; m represents 0, 1, 2, or 3; n represents 0 or 1; each of R4, R5, R6, and R7 represents H, an alkyl, or the like; and B represents an optionally substituted naphthyl, an optionally substituted aromatic heterocyclyl, or a group represented by the following formula (II) wherein each of B1 and B2 represents an optionally substituted phenyl or an optionally substituted aromatic heterocyclyl.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: October 6, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Keiko Suzuki, Takahiro Yamaguchi, Akihiro Tamura, Tomohiro Nishizawa, Mitsuhiro Yamaguchi
  • Patent number: 9135326
    Abstract: Disclosed are a text mining method, device, and program capable of performing text mining with a specific topic as an object with high precision. An element identification unit calculates a feature degree, which is an index for indicating a degree that within a text set of interest, which is a set of text that is to be analyzed, an element of the text appears. An output unit identifies distinctive elements within the text set of interest on the basis of the calculated feature degree and outputs the identified elements. The element identification unit corrects the feature degree on the basis of a topic relatedness degree, which is a value indicating a degree related to a topic of analysis, which is a topic for which each text portion of the text being analyzed has been partitioned into predetermined units that are to be analyzed.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: September 15, 2015
    Assignee: NEC CORPORATION
    Inventors: Akihiro Tamura, Kai Ishikawa, Shinichi Ando
  • Publication number: 20150181092
    Abstract: The present disclosure provides a communication system which can shorten a data transfer time by realizing transmission and reception of data using two communicators. The present disclosure is a communication system which includes: a first device; and a second device, and in which the first device includes a first controller, the second device includes a second controller, the first controller and the second controller are connected through a first communicator and a second communicator, and the second controller switches and selectively executes one of a reception mode for receiving data from the first controller using the first communicator, and the second communicator and a transmission/reception mode for transmitting data to the first controller using the first communicator and receiving data from the first controller using the second communicator.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 25, 2015
    Inventor: Akihiro TAMURA
  • Patent number: 8886519
    Abstract: A text processing apparatus is provided with a segment determination unit 36 and a descriptive content determination unit 33. The segment determination unit 36 determines, with respect to a homogeneous segment that is similar to segments constituting a first text which is set as an analysis target (analysis target text) and that is included in another first text, whether the content thereof is included in a second text. The descriptive content determination unit 33 determines whether each segment constituting the analysis target text should be described in a corresponding second text, based on the determination result.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: November 11, 2014
    Assignee: NEC Corporation
    Inventors: Akihiro Tamura, Kai Ishikawa, Shinichi Ando
  • Patent number: 8805853
    Abstract: A text mining system including an analysis target search unit which judges whether a commonality in expressions among text data exists, an analysis viewpoint generation unit which generates an analysis viewpoint to extract an expression from the target data, a positive example set identification unit which identifies a positive example set including an expression matching the generated analysis viewpoint in the target data, a characteristic quantity calculation unit which calculates a characteristic quantity showing a degree of characterizing the positive example set of expressions in the target data, and a characteristic expression ranking unit which extracts expressions having the calculated characteristic quantity equal to or greater than a predetermined threshold as characteristic expressions and ranks the extracted characteristic expressions, and the target search unit extracts the analysis viewpoint among which a difference in ranks provided for the characteristic expressions is equal to or greater than
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: August 12, 2014
    Assignee: NEC Corporation
    Inventors: Kai Ishikawa, Shinichi Ando, Akihiro Tamura