Patents by Inventor Masato Hagiwara

Masato Hagiwara 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).

  • Patent number: 11030407
    Abstract: A multilingual named-entity recognition system according to an embodiment includes an acquisition unit configured to acquire an annotated sample of a source language and a sample of a target language, a first generation unit configured to generate an annotated named-entity recognition model of the source language by applying Conditional Random Field sequence labeling to the annotated sample of the source language and obtaining an optimum weight for each annotated named entity of the source language, a calculation unit configured to calculate similarity between the annotated sample of the source language and the sample of the target language, and a second generation unit configured to generate a named-entity recognition model of the target language based on the annotated named-entity recognition model of the source language and the similarity.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: June 8, 2021
    Assignee: Rakuten, Inc.
    Inventors: Masato Hagiwara, Ayah Zirikly
  • Patent number: 10591998
    Abstract: To allow for easy entry of a plurality of characters by handwriting gestures in the air, a user interface device includes template data storage means for storing template data indicating changes in a predetermined writing position when a gesture to write each of a plurality of characters in the air is made, position obtaining means for sequentially obtaining the predetermined writing position when a user makes gestures to sequentially writing characters in the air, similarity evaluation information output means, every time the predetermined writing position is obtained by the position obtaining means, for sequentially outputting similarity evaluation information indicating a similarity between data to be evaluated including a predetermined number of the predetermined writing positions taken in order from newly obtained data and the template data related to each of the plurality of characters, and character string determination means for determining a character string related to the gestures of the user based
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: March 17, 2020
    Assignee: RAKUTEN, INC.
    Inventors: Soh Masuko, Masato Hagiwara
  • Publication number: 20190034407
    Abstract: A multilingual named-entity recognition system according to an embodiment includes an acquisition unit configured to acquire an annotated sample of a source language and a sample of a target language, a first generation unit configured to generate an annotated named-entity recognition model of the source language by applying Conditional Random Field sequence labeling to the annotated sample of the source language and obtaining an optimum weight for each annotated named entity of the source language, a calculation unit configured to calculate similarity between the annotated sample of the source language and the sample of the target language, and a second generation unit configured to generate a named-entity recognition model of the target language based on the annotated named-entity recognition model of the source language and the similarity.
    Type: Application
    Filed: June 22, 2016
    Publication date: January 31, 2019
    Applicant: Rakuten, Inc.
    Inventors: Masato Hagiwara, Ayah Zirikly
  • Patent number: 9880630
    Abstract: To enable a user to easily select a selection element, a user interface device includes image capturing means for capturing an image of a user viewing a display screen, recognition means for recognizing the position of a reference part of the user's body appearing in the captured image, which differs from a selection position that is a position for the user to select a selection element displayed on the display screen, display position determination means for determining a display position of the selection element based on the position of the reference part appearing in the image, and display means for displaying the selection element in the determined display position.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: January 30, 2018
    Assignee: RAKUTEN, INC.
    Inventors: Soh Masuko, Masato Hagiwara
  • Publication number: 20160147307
    Abstract: To allow for easy entry of a plurality of characters by handwriting gestures in the air, a user interface device includes template data storage means for storing template data indicating changes in a predetermined writing position when a gesture to write each of a plurality of characters in the air is made, position obtaining means for sequentially obtaining the predetermined writing position when a user makes gestures to sequentially writing characters in the air, similarity evaluation information output means, every time the predetermined writing position is obtained by the position obtaining means, for sequentially outputting similarity evaluation information indicating a similarity between data to be evaluated including a predetermined number of the predetermined writing positions taken in order from newly obtained data and the template data related to each of the plurality of characters, and character string determination means for determining a character string related to the gestures of the user based
    Type: Application
    Filed: October 3, 2013
    Publication date: May 26, 2016
    Inventors: Soh MASUKO, Masato HAGIWARA
  • Patent number: 9323744
    Abstract: A transliteration device (100) comprises a generation part (105) generating rewriting tables corresponding to K different languages and including multiple rewriting probabilities that an original segment can be rewritten as a transliterated segment for transliteration and transliteration tables corresponding to the K languages. The transliteration device (100) further comprises an update part (107) saving the transliteration probability that an original spelling string originating from a language corresponding to the used rewritten language is transliterated to a target spelling string in the transliteration able corresponding to the language, and so updating the K rewriting tables as to maximize the expected value of a likelihood function calculating the likelihood of the K transliteration tables.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: April 26, 2016
    Assignee: Rakuten, Inc.
    Inventor: Masato Hagiwara
  • Patent number: 9268821
    Abstract: A receiving unit (101) receives a seed string. A search unit (102) searches snippets of documents containing the seed string. A segment acquisition unit (103) obtains segments by partitioning the snippets using a segment partition string. A segment component acquisition unit (104) obtains segment components by partitioning the segments using a segment component partition string. A segment score computation unit (105) calculates a segment score for a segment based on the standard deviation of the lengths of the segment components. A segment component score computation unit (106) calculates a segment component score for a segment component based on the segment score and the distance between the position of the seed string and the position of the segment component. A selection unit (107) selects any of the segment components as candidates for instances contained in the expanded set of the seed string based on the segment component scores.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: February 23, 2016
    Assignee: Rakuten, Inc.
    Inventor: Masato Hagiwara
  • Publication number: 20150309991
    Abstract: An input support device according to one embodiment includes a receiving unit, a search unit and an output unit. The receiving unit receives an input letter string in Roman letters. The search unit performs first processing that searches a storage unit storing alphabetical words/phrases in a first language and romanized words/phrases in a second language corresponding to the words/phrases in the first language in a way their correspondence can be specified for words/phrases in the first language containing the input letter string, and second processing that searches the storage unit for words/phrases in the first language corresponding to the romanized word/phrase containing the input letter string. The output unit outputs a result of the first processing and a result of the second processing as input candidates.
    Type: Application
    Filed: August 9, 2013
    Publication date: October 29, 2015
    Applicant: Rakuten, Inc.
    Inventors: Yuta HAYASHIBE, Masato HAGIWARA
  • Publication number: 20150261300
    Abstract: To enable a user to easily select a selection element, a user interface device includes image capturing means for capturing an image of a user viewing a display screen, recognition means for recognizing the position of a reference part of the user's body appearing in the captured image, which differs from a selection position that is a position for the user to select a selection element displayed on the display screen, display position determination means for determining a display position of the selection element based on the position of the reference part appearing in the image, and display means for displaying the selection element in the determined display position.
    Type: Application
    Filed: October 3, 2013
    Publication date: September 17, 2015
    Inventors: Soh Masuko, Masato Hagiwara
  • Publication number: 20150261301
    Abstract: To allow for entry of an intended word or sentence even if a vowel is input by mistake in a consonant input, a user interface device, which determines a character string related to gestures to sequentially write characters in the air made by a user, includes dictionary storage means for storing one conversion source character string that is an alphabetic string including only consonant(s) and at least one conversion source character string that is an alphabetic string including consonant(s) and vowel(s) in association with each of a plurality of conversion target character strings, conversion target character string obtaining means, when part or all of the alphabetic string recognized based on the gestures matches any one of the conversion source character strings stored in the dictionary storage means, for obtaining the conversion target character string stored in association with said one of the conversion source character strings, and determining means for determining the character string related to the ge
    Type: Application
    Filed: October 3, 2013
    Publication date: September 17, 2015
    Inventors: Masato Hagiwara, Soh Masuko
  • Publication number: 20130246042
    Abstract: A transliteration device (100) comprises a generation part (105) generating rewriting tables corresponding to K different languages and including multiple rewriting probabilities that an original segment can be rewritten as a transliterated segment for transliteration and transliteration tables corresponding to the K languages. The transliteration device (100) further comprises an update part (107) saving the transliteration probability that an original spelling string originating from a language corresponding to the used rewritten language is transliterated to a target spelling string in the transliteration able corresponding to the language, and so updating the K rewriting tables as to maximize the expected value of a likelihood function calculating the likelihood of the K transliteration tables.
    Type: Application
    Filed: February 28, 2012
    Publication date: September 19, 2013
    Applicant: RAKUTEN, INC.
    Inventor: Masato Hagiwara
  • Publication number: 20130144875
    Abstract: A receiving unit (101) receives a seed string. A search unit (102) obtains snippets of documents containing the seed string. A segment acquisition unit (103) obtains segments by partitioning those snippets using a segment partition string. A segment component acquisition unit (104) obtains segment components by partitioning the segments using a segment component partition string. A segment score computation unit (105) computes a segment score for a segment from the standard deviation of the lengths of the segment components. A segment component score computation unit (106) computes a segment component score for a segment component from the segment score and the distance between the position of the seed string and the position of the segment component. A selection unit (107) selects any of the segment components as candidates for instances contained in the expanded set of the seed string based on the segment component scores.
    Type: Application
    Filed: February 22, 2012
    Publication date: June 6, 2013
    Applicant: RAKUTEN, INC.
    Inventor: Masato Hagiwara
  • Patent number: 7434748
    Abstract: There are disposed a spray nozzle 12 which includes a supported section 13 and a spray section 14 for spraying cleaning water; a nozzle holder 9 into which the supported section 13 of the spray nozzle 12 is inserted and which supports the spray nozzle 12 so as to allow rotation only about an axis extending in the direction in which the spray nozzle 12 is inserted into the nozzle holder 9; and a water-supply unit 5 which has a fluid passage for supplying cleaning water to the spray nozzle 12 and to which the nozzle holder 9 is connected.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: October 14, 2008
    Assignee: Koito Manufacturing Co. Ltd.
    Inventors: Hiromasa Takada, Masato Hagiwara
  • Patent number: 7311269
    Abstract: A vehicle lamp cleaning apparatus includes a nozzle having a cleaning fluid injection port at one end and an opened end at the other end thereof, a nozzle holder having a flow path which communicates with the cleaning fluid injection port and a first joint portion which fits on the other end portion of the nozzle, and a cleaning fluid supply portion, wherein a first and second annular portions are formed on circumferential surface of the nozzle and the first joint portion, respectively, when the other end portion of the nozzle fits on the first joint portion of the nozzle holder, the first and second annular portions fit each other in concavo-convex fitting manner to thereby form a first fit portion, and the nozzle is held by the first fit portion rotatably relative to the nozzle holder around a fitting direction.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: December 25, 2007
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Masato Hagiwara
  • Patent number: 7065751
    Abstract: A program execution device with a small required memory storage capacity includes: a compressed code storing portion storing a code which has been compressed on a prescribed unit basis of a program described in a prescribed language; an expanding portion connected to the compressed code storing portion for expanding the compressed code stored in the compressed code storing portion; a code storing portion connected to the expanding portion for storing the code expanded by the expanding portion; and an interpreter portion connected to the code storing portion for interpreting and executing the expanded code.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: June 20, 2006
    Assignee: Renesas Technology Corp.
    Inventors: Masato Hagiwara, Toyohiko Yoshida, Mamoru Sakamoto
  • Publication number: 20060038038
    Abstract: A vehicle lamp cleaning apparatus includes a nozzle having a cleaning fluid injection port at one end and an opened end at the other end thereof, a nozzle holder having a flow path which communicates with the cleaning fluid injection port and a first joint portion which fits on the other end portion of the nozzle, and a cleaning fluid supply portion, wherein a first and second annular portions are formed on circumferential surface of the nozzle and the first joint portion, respectively, when the other end portion of the nozzle fits on the first joint portion of the nozzle holder, the first and second annular portions fit each other in concavo-convex fitting manner to thereby form a first fit portion, and the nozzle is held by the first fit portion rotatably relative to the nozzle holder around a fitting direction.
    Type: Application
    Filed: July 14, 2005
    Publication date: February 23, 2006
    Inventor: Masato Hagiwara
  • Publication number: 20050121539
    Abstract: There are disposed a spray nozzle 12 which includes a supported section 13 and a spray section 14 for spraying cleaning water; a nozzle holder 9 into which the supported section 13 of the spray nozzle 12 is inserted and which supports the spray nozzle 12 so as to allow rotation only about an axis extending in the direction in which the spray nozzle 12 is inserted into the nozzle holder 9; and a water-supply unit 5 which has a fluid passage for supplying cleaning water to the spray nozzle 12 and to which the nozzle holder 9 is connected.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 9, 2005
    Inventors: Hiromasa Takada, Masato Hagiwara
  • Patent number: 6871259
    Abstract: A flash memory includes a data bank having a plurality of banks, a merge bank, and an update data bank. A file system using the flash memory includes a unit storing update data corresponding to a data rewrite command into the update data bank, a unit selecting the latest update data for each block from update data stored in the update data bank when the update data bank becomes full, and a processing unit processing the latest update data. The processing unit includes a unit storing latest update data into a merge bank, a unit selecting data associated with the latest update data from the data bank to store the selected data into the merge bank, and a unit setting the merge bank as a new data bank.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: March 22, 2005
    Assignee: Renesas Technology Corp.
    Inventors: Masato Hagiwara, Mamoru Sakamoto
  • Publication number: 20050050372
    Abstract: A precision storage unit stores the required precision of data. A register is formed of a 8-bit register. A decoder decodes the data precision stored by the precision storage unit. Control is provided of the power supply and clock supply to the registers in accordance with the decoded result of the decoder. Accordingly, power consumption of the microcontroller unit can be reduced.
    Type: Application
    Filed: August 31, 2004
    Publication date: March 3, 2005
    Inventor: Masato Hagiwara
  • Publication number: 20040015895
    Abstract: A program execution device with a small required memory storage capacity includes: a compressed code storing portion storing a code which has been compressed on a prescribed unit basis of a program described in a prescribed language; an expanding portion connected to the compressed code storing portion for expanding the compressed code stored in the compressed code storing portion; a code storing portion connected to the expanding portion for storing the code expanded by the expanding portion; and an interpreter portion connected to the code storing portion for interpreting and executing the expanded code.
    Type: Application
    Filed: February 13, 2002
    Publication date: January 22, 2004
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masato Hagiwara, Toyohiko Yoshida, Mamoru Sakamoto