Patents by Inventor Yoshiki Niwa

Yoshiki Niwa 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: 10699057
    Abstract: Provided is a system which controls information presented to a user referring to contents including a plurality of elements, outputs the contents to an output device, obtains bioinformation of the user at a time when each of the elements included in the contents is output to the output device, calculates an understanding level of the user with respect to each of the elements included in the contents, based on each piece of the obtained bioinformation, determines the understanding type based on the calculated understanding level and a difficulty level indicated by the difficulty level information of the elements of which the understanding level is equal to or lower than a first threshold value, in a case where it is determined that the user does not understand the contents based on the calculated understanding level, and outputs the presented information which corresponds to the determined understanding type to the output device.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: June 30, 2020
    Assignee: HITACHI LTD.
    Inventors: Miaomei Lei, Toshinori Miyoshi, Yoshiki Niwa, Hiroki Sato
  • Publication number: 20190180636
    Abstract: A comprehension-level calculation device that calculates a comprehension level of a user to sound language, retains respective time series of pieces of biological information in a plurality of regions of the user during presentation of the sound language to the user, calculates a similarity level for each pair of the time series, calculates the comprehension level on the basis of the calculated similarity level, and determines, in a case where the calculated similarity level is higher, the comprehension level as a higher value in the calculation of the comprehension level.
    Type: Application
    Filed: February 23, 2017
    Publication date: June 13, 2019
    Inventors: Miaomei LEI, Toshinori MIYOSHI, Yoshiki NIWA, Hiroki SATO
  • Publication number: 20180285351
    Abstract: Provided is a system which controls information presented to a user referring to contents including a plurality of elements, outputs the contents to an output device, obtains bioinformation of the user at a time when each of the elements included in the contents is output to the output device, calculates an understanding level of the user with respect to each of the elements included in the contents, based on each piece of the obtained bioinformation, determines the understanding type based on the calculated understanding level and a difficulty level indicated by the difficulty level information of the elements of which the understanding level is equal to or lower than a first threshold value, in a case where it is determined that the user does not understand the contents based on the calculated understanding level, and outputs the presented information which corresponds to the determined understanding type to the output device.
    Type: Application
    Filed: October 7, 2015
    Publication date: October 4, 2018
    Applicant: HITACHI, LTD.
    Inventors: Miaomei LEI, Toshinori MIYOSHI, Yoshiki NIWA, Hiroki SATO
  • Publication number: 20180247240
    Abstract: Information appropriate for supporting various judgments in organization activities is provided. A judgment support system for supporting a user's judgment, includes: a processor that executes a program; a storage section that can be accessed by the processor; and an output section that outputs data for displaying an execution result of the program. The judgment support system further includes: an extraction section that searches a predetermined sentence expression from data stored in the storage section, and extracts an issue of an organization using text having a predetermined relationship with the searched sentence expression; and a first selection section that selects a second organization confronted with an issue similar to an issue of a first organization to be analyzed, and that selects measures against the issue of the second organization from the data stored in the storage section. The output section outputs data for displaying the selected issue and the selected measures.
    Type: Application
    Filed: December 12, 2017
    Publication date: August 30, 2018
    Applicant: HITACHI, LTD.
    Inventors: Kenzo Kurotsuchi, Kohsuke Yanai, Toshihiko Yanase, Misa Sato, Yuta Koreeda, Yoshiki Niwa, Kazuo Yano
  • Patent number: 8046368
    Abstract: A document retrieval is performed with similarities between documents in numeric data taken into consideration. To this end, generated is a set E of intervals in which each element of a set D of numeric values representing a feature A is included in any one of the intervals. Each numeric value in each document is indexed by assigning, with 1, an interval including an element x of the set D, and with 0, an interval without the element x. Each document data including numeric values is indexed by indexing its text part with term frequencies, and by indexing its numeric-value part with the above-described numeric value indexing scheme. By use of indices thus created for each of the document data, similarities between the document data are calculated using a vector space model or a probability model, and the document data are presented in order of similarity.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: October 25, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Hiroko Ohi, Yoshiki Niwa, Kiyohiro Obara
  • Patent number: 7693910
    Abstract: This invention aims to provide an efficient means of performing a document search wherein relevance between plural document databases is examined. A summary making module and a search module are provided to document databases, and these are connected to a network as a server. A client obtains a relevant set of documents in a specified document database via this summary from a set of documents in the specified document database. The summary obtained is sent to another server, and a search is performed according to the summary in a document database in the server to which the summary is transferred.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: April 6, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Makoto Iwayama, Shingo Nishioka, Yoshiki Niwa, Akihiko Takano
  • Patent number: 7590651
    Abstract: The setting of a search condition is supported. Databases 130 and 140 store use frequency information about search conditions, co-occurrence frequency information between search conditions, relationship information unique to a particular field, use history information for each search condition, and simultaneous use history information. Based on a search condition that is already set, the database are referred to so as to calculate the recommendation level of other search conditions, and search conditions that have high recommendation levels and that are likely to be used simultaneously with the already-set search condition are arranged at conspicuous positions. The recommendation level is calculated based on the value of a co-occurrence frequency between search conditions, the history of simultaneous setting, or the estimated number of search results, for example.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: September 15, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Masakazu Fujio, Yoshiki Niwa, Shigeo Sumino
  • Publication number: 20080270386
    Abstract: A document retrieval is performed with similarities between documents in numeric data taken into consideration. To this end, generated is a set E of intervals in which each element of a set D of numeric values representing a feature A is included in any one of the intervals. Each numeric value in each document is indexed by assigning, with 1, an interval including an element x of the set D, and with 0, an interval without the element x. Each document data including numeric values is indexed by indexing its text part with term frequencies, and by indexing its numeric-value part with the above-described numeric value indexing scheme. By use of indices thus created for each of the document data, similarities between the document data are calculated using a vector space model or a probability model, and the document data are presented in order of similarity.
    Type: Application
    Filed: February 12, 2008
    Publication date: October 30, 2008
    Inventors: Hiroko Ohi, Yoshiki Niwa, Kiyohiro Obara
  • Publication number: 20070276857
    Abstract: The setting of a search condition is supported. Databases 130 and 140 store use frequency information about search conditions, co-occurrence frequency information between search conditions, relationship information unique to a particular field, use history information for each search condition, and simultaneous use history information. Based on a search condition that is already set, the database are referred to so as to calculate the recommendation level of other search conditions, and search conditions that have high recommendation levels and that are likely to be used simultaneously with the already-set search condition are arranged at conspicuous positions. The recommendation level is calculated based on the value of a co-occurrence frequency between search conditions, the history of simultaneous setting, or the estimated number of search results, for example.
    Type: Application
    Filed: August 9, 2006
    Publication date: November 29, 2007
    Inventors: Masakazu Fujio, Yoshiki Niwa, Shigeo Sumino
  • Publication number: 20070271214
    Abstract: A clinical trial support system suitable for the investigation of an adverse event or the like. A clinical trial database stores: information about sponsors; information about trial sites; product information including the product names, classification, chemical structure, and pharmacokinetics of trial drugs; trial information including trial name, target disease, phase, and completed status; contract information including trial site name, contracted number of cases, and completed status; trial subject information including sex, birth of date, height, weight, and completed status; and visit information including visit date, inspection result, and medical imaging data. An information control unit distributes a search interface for the analysis of an adverse event to the trial sponsor and a retrieval result to the trial site.
    Type: Application
    Filed: May 17, 2007
    Publication date: November 22, 2007
    Inventors: Shigeo Sumino, Tomohiro Yasuda, Yoshitaka Bito, Yoshiki Niwa
  • Patent number: 7277881
    Abstract: Ordering is properly performed for document databases registered in an associative search server. In an associative search server capable of performing an associative search by correlating a plurality of document databases, the history of the associative search is stored as an associative search recording table by associative search recording table storing means. By using this associative search recording table, a showing order of document databases presented by document database selecting means is properly set by showing order changing means. Alternatively, by registration fee calculating means, calculation is properly carried out as to registration fees of the document database registered in the associative search server.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: October 2, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Osamu Imaichi, Toru Hisamitsu, Makoto Iwayama, Shingo Nishioka, Yoshiki Niwa
  • Publication number: 20070185910
    Abstract: Similar concepts are deduced in consideration of relationships among concepts belonging to a plurality of categories. Concepts belonging to a plurality of categories are shown in the form of a graph in which concepts are represented by nodes and relationships between pairs of concepts are represented by edges. The number of crossings of edges linking pairs of concepts belonging to categories is reduced. Similar concepts are deduced multilaterally in consideration of the relationships between the pairs of concepts belonging to the categories.
    Type: Application
    Filed: January 11, 2007
    Publication date: August 9, 2007
    Inventors: Asako Koike, Yoshiki Niwa
  • Publication number: 20070100885
    Abstract: A system functioning between the clinical trial facility (trial site) and the party requesting clinical trial (sponsor) to make clinical trial more efficient. Information relating to the sponsor and information relating to the trial site, and trial basic information including the trial target disease name, the total length of trial (trial period), total number of cases and total budget registered by the sponsor, and trial contract conditions including the trial name, trial period, number of cases and budget are stored in a clinical trial database; and the process and information service unit distributes information on trial contract conditions registered in the contract information storage area to the trial site, registers applicant trial sites for trial relating to the distributed trial contract conditions, and distributes the status of applicant responses for trial contract conditions, to the trial sponsor who registered matching contract conditions.
    Type: Application
    Filed: February 3, 2006
    Publication date: May 3, 2007
    Inventors: Shigeo Sumino, Masakazu Fujio, Yoshiki Niwa
  • Patent number: 7065518
    Abstract: A system for displaying the results of a search provided by one of two different search systems enabling continuous searching. One search system includes a search takeover data production command used to output search takeover data articles from the search. The other search system includes a search takeover data reading command used to read search takeover data. A document identifier correspondence table associates the identifiers specified in the search takeover data. When a user clicks a search system transfer instruction button in one search system, the search takeover data producing command is executed to produce search takeover data which is passed to the other search system. The latter search system regards the list of identifiers of articles which was passed by the search takeover data reading command as the search results, and thus operates continuously.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: June 20, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Shingo Nishioka, Yoshiki Niwa, Toru Hisamitsu, Makoto Iwayama, Osamu Imaichi
  • Publication number: 20060106544
    Abstract: Feature of a compound is predicted by using information on interactions between substances. A database of interactions between compounds and genes/proteins is constructed on the base of information collected from bibliographic databases, gene/protein databases, and disease databases, and an interaction network is prepared by mapping the collected information to thereby enable prediction of the features of a compound.
    Type: Application
    Filed: March 7, 2005
    Publication date: May 18, 2006
    Inventors: Yoshihiro Ohta, Yoshiki Niwa, Toru Hisamitsu
  • Publication number: 20050278292
    Abstract: A system for effectively collecting, without omissions, spelling variations centering on particular technical terms occurring in documents. In advance, the system sorts technical terms considered to be potential spelling variations from among a large-scale collection of terms. By measuring the edit distance adjusted for the cost of the terms that are potential spelling variations, the system can collect terms considered spelling variations from among the potential spelling variation terms with a high degree of accuracy.
    Type: Application
    Filed: November 16, 2004
    Publication date: December 15, 2005
    Inventors: Hiroko Ohi, Osamu Imaichi, Yoshiki Niwa
  • Publication number: 20050278293
    Abstract: To provide a summary of a search result in an associative search system based on multiple viewpoints. By indexing one document database in plural ways, a summary of a search result can be displayed from multiple viewpoints. By managing documents in indexed versions of the document database by common identifiers, summaries of a document set obtained as a search result can be created using the different indexes.
    Type: Application
    Filed: January 18, 2005
    Publication date: December 15, 2005
    Inventors: Osamu Imaichi, Hiroko Ohi, Yoshiki Niwa
  • Publication number: 20050080773
    Abstract: Data newly obtained on genes by experiments, data obtained from texts and data obtained through the Internet or the like are integrated to provide novel knowledge. Information on the association between terms such as a gene, a compound, a disease, gene functions and the like accumulated in a data storage system is used to reconstruct a network of terms connecting a first query and a second query designated by a first query input unit l so to display on a display device. Thereby, a term associating the first query and the second query is displayed. As a result, a user is provided with knowledge how the first query and the second query are associated.
    Type: Application
    Filed: January 29, 2004
    Publication date: April 14, 2005
    Inventors: Asako Koike, Yoshiki Niwa, Toshihisa Takagi
  • Patent number: 6850937
    Abstract: A known method for selecting words (or word sequences), which is an important aspect of information retrieval, involves the problems of inability to eliminate high-frequency common words and of often arbitrary setting of the threshold value for dividing important and unimportant words. These problems are solved by normalizing the difference between the word distribution in a subset of all documents containing a word to be extracted (or a subset of said document set) and the word distribution in the set of all documents with the number of words in the said subset of all documents containing the word as a parameter, and the accuracy of support information retrieval is thereby enhanced.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: February 1, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Toru Hisamitsu, Yoshiki Niwa
  • Publication number: 20040205059
    Abstract: An information search system includes a similarity calculating block for forming a summary word list as a summary of a search request and calculating a similarity between the summary word list and a search target document and a restricting condition examining block for examining a restricting condition of the search target document and applies these two blocks in this order or its opposite order, thereby the system can search for documents which satisfy the restricting condition and are similar to the search request examining restricting condition upon execution of associative search yields much higher efficiency than applying them sequentially.
    Type: Application
    Filed: March 2, 2004
    Publication date: October 14, 2004
    Inventors: Shingo Nishioka, Yoshiki Niwa, Osamu Imaichi