Patents by Inventor Takao Murakami

Takao Murakami 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: 10840641
    Abstract: A connector includes a second housing fittable with a first housing, a slide member movable relative to the first housing along a connector fitting direction, a transmission gear member rotatably supported by a support shaft provided on the first housing, a first rack gear portion provided on the slide member along the connector fitting direction, a driven gear portion of the transmission gear member rotated by movement of the first rack gear portion in the connector fitting direction, a main drive gear portion of the transmission gear member provided on a side opposite to the driven gear portion with the support shaft interposed therebetween, and a second rack gear portion provided on the second housing along the connector fitting direction, and movable relative to the first housing along the connector fitting direction by rotation of the main drive gear portion.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: November 17, 2020
    Assignee: YAZAKI CORPORATION
    Inventors: Kengo Aoshima, Takao Murakami
  • Publication number: 20200014146
    Abstract: A connector includes a second housing fittable with a first housing, a slide member movable relative to the first housing along a connector fitting direction, a transmission gear member rotatably supported by a support shaft provided on the first housing, a first rack gear portion provided on the slide member along the connector fitting direction, a driven gear portion of the transmission gear member rotated by movement of the first rack gear portion in the connector fitting direction, a main drive gear portion of the transmission gear member provided on a side opposite to the driven gear portion with the support shaft interposed therebetween, and a second rack gear portion provided on the second housing along the connector fitting direction, and movable relative to the first housing along the connector fitting direction by rotation of the main drive gear portion.
    Type: Application
    Filed: June 24, 2019
    Publication date: January 9, 2020
    Applicant: Yazaki Corporation
    Inventors: Kengo AOSHIMA, Takao Murakami
  • Patent number: 10122394
    Abstract: An attachment structure for an electronic component accommodation box including a vibration proof structure includes a damping structure between a vehicle body side attachment member and a casing in which at least one electronic component is mounted. The damping structure includes first sliding portions, second sliding portions, and damping members interposed between the first sliding portions and the second sliding portions. The damping members generate sliding resistance between each of the first sliding portions and each of the second sliding portions when the casing moves relative to the vehicle body side attachment member.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: November 6, 2018
    Assignee: YAZAKI CORPORATION
    Inventors: Naoyuki Ikeda, Toshitaka Iwasaki, Hiroki Kayamori, Takao Murakami
  • Publication number: 20170359093
    Abstract: An attachment structure for an electronic component accommodation box including a vibration proof structure includes a damping structure between a vehicle body side attachment member and a casing in which at least one electronic component is mounted. The damping structure includes first sliding portions, second sliding portions, and damping members interposed between the first sliding portions and the second sliding portions. The damping members generate sliding resistance between each of the first sliding portions and each of the second sliding portions when the casing moves relative to the vehicle body side attachment member.
    Type: Application
    Filed: June 6, 2017
    Publication date: December 14, 2017
    Inventors: Naoyuki Ikeda, Toshitaka Iwasaki, Hiroki Kayamori, Takao Murakami
  • Patent number: 9662953
    Abstract: A strut-type suspension device includes an upper support; a shock absorber that is supported by the upper support; a coil spring that is arranged surrounding the shock absorber, between an upper spring seat and a lower spring seat; and a bearing that is arranged between the upper spring seat and the upper support. The upper support includes a mounting portion that has a support surface for supporting the bearing. The support surface is inclined with respect to a plane perpendicular to a shock absorber axis.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: May 30, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takao Murakami, Yuji Homma, Naoya Asaoka
  • Publication number: 20170008362
    Abstract: A strut-type suspension device includes an upper support; a shock absorber that is supported by the upper support; a coil spring that is arranged surrounding the shock absorber, between an upper spring seat and a lower spring seat; and a bearing that is arranged between the upper spring seat and the upper support. The upper support includes a mounting portion that has a support surface for supporting the bearing. The support surface is inclined with respect to a plane perpendicular to a shock absorber axis.
    Type: Application
    Filed: March 6, 2015
    Publication date: January 12, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takao MURAKAMI, Yuji HOMMA, Naoya ASAOKA
  • Publication number: 20140007210
    Abstract: By reducing both a WAP and an LAP to a certain value or lower, biometric authentication with high security is implemented. A template and a query sample are generated from biometric data of a user and they are matched. There, a query sample-specific impostor distribution, to which a score of a query sample and a template of an impostor follows, and a template-specific impostor distribution, to which a score of a template arid a query sample of an impostor follows, are estimated and user judgment is performed using one of them in which false accept is more difficult to occur.
    Type: Application
    Filed: December 6, 2012
    Publication date: January 2, 2014
    Applicant: Hitachi, Ltd.
    Inventors: TAKAO MURAKAMI, Kenta Takahashi
  • Publication number: 20130151562
    Abstract: The use of the known feature amounts results in a low level of accuracy in finding similar files. To deal with this problem, the similar file determination process of this invention involves dividing a file, while at the same time changing a file dividing condition, and repeating this dividing operation until the total number of divided pieces of data exceeds a predetermined number. For each of the divided pieces of data thus obtained a hash value is calculated and all the hash values are output.
    Type: Application
    Filed: February 2, 2011
    Publication date: June 13, 2013
    Applicant: HITACHI, LTD.
    Inventors: Yasuhiro Fujii, Susumu Serita, Satoshi Kai, Takao Murakami, Takahiro Nakano
  • Patent number: 8437511
    Abstract: A 1:N identification system having high convenience and safety is to be provided. An authentication client includes at least one biometric information input sensor and a feature extraction function. A database includes an enrollee ID and registered templates of biometric information of at least one kind every enrollee and includes a score table. An authentication server includes a prior probability setting function, a 1:N fast matching function for successively matching the feature with the registered templates of the enrollees and discontinuing matching processing when the number of times of matching has exceeded a predetermined threshold, a delta score calculation function for calculating a delta score by using a score obtained by the 1:N fast matching and using the score table, a posterior probability calculation function for calculating posterior probabilities respectively of the enrollees on the basis of the score and the delta score, and an authentication object user identification function.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: May 7, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Takao Murakami, Kenta Takahashi
  • Patent number: 8433922
    Abstract: In additional enrollment of a template in a biometric authentication system, the template is automatically enrolled on the basis of a plurality of authentication results to assure a user's convenience and security. A post-migration authentication server receives a first template and a second template from a post-migration authentication terminal, performs authentication on the basis of the comparison result between the received first template and the user's preliminarily first enrolled template, and provisionally enrolls the first template and the second template. It repeats the reception, authentication, and provisional enrollment and calculates a match probability from a plurality of comparison results of the provisionally first enrolled templates, determines whether or not to store a second enrolled template on the basis of the match probability, and automatically enrolls the second template in the post-migration authentication server.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: April 30, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Yosuke Kaga, Osamu Takata, Yoshiaki Isobe, Kenta Takahashi, Takao Murakami
  • Patent number: 8340361
    Abstract: A biometric authentication system, authentication client terminal, and biometric authentication method are provided to reduce an expected value of the number of inputs of biometric data for authentication, while effectively preventing forgery. In a biometric authentication system, prior probabilities of enrolled users un and non-enrolled user u0 are previously set. 1:N matching is performed between feature data of a claimant v and matching feature data. The matching score is calculated for each enrolled user un. A ratio of the likelihood v=un to the likelihood v?un is calculated for each enrolled user un using the calculated matching scores. Posterior probabilities of the enrolled users un and non-enrolled user u0 are calculated, using the likelihood ratios, and the prior probabilities of both the enrolled users un and the non-enrolled user u0. Then, determination is made by comparing each posterior probability with a first threshold.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: December 25, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Takao Murakami, Kenta Takahashi
  • Patent number: 8332916
    Abstract: A service providing system using the biometrics identification without inputting the user ID poses the problem that the consideration of a service is erroneously claimed to the registered user not using the service due to the erroneous identification. According to this invention, the threshold of the value of the degree of similarity for user identification is set strictly for each registered biometrics information of the user in accordance with the declaration of the loss caused by the erroneous identification.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: December 11, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiaki Isobe, Takao Murakami, Kenta Takahashi
  • Publication number: 20120221574
    Abstract: A pivot is determined from enrolled data by a pivot determination unit, raw data is acquired, features are extracted from the raw data, a score is calculated as one of a distance and a degree of similarity between the features, an index vector is generated by using the score for the pivot, a ? score is calculated as one of a distance and a degree of similarity between the index vectors, a parameter of each non-pivot including a regression coefficient is trained by using training data, order to select the non-pivots is, by using the ? score between search data and the non-pivot as well as the regression coefficient, determined in descending order of posterior probability through logistic regression, and a search result is outputted based on the score between the search data and the enrolled data.
    Type: Application
    Filed: February 9, 2012
    Publication date: August 30, 2012
    Applicant: HITACHI, LTD.
    Inventors: Takao Murakami, Kenta Takahashi
  • Publication number: 20110182480
    Abstract: A 1:N identification system having high convenience and safety is to be provided. An authentication client includes at least one biometric information input sensor and a feature extraction function. A database includes an enrollee ID and registered templates of biometric information of at least one kind every enrollee and includes a score table. An authentication server includes a prior probability setting function, a 1:N fast matching function for successively matching the feature with the registered templates of the enrollees and discontinuing matching processing when the number of times of matching has exceeded a predetermined threshold, a delta score calculation function for calculating a delta score by using a score obtained by the 1:N fast matching and using the score table, a posterior probability calculation function for calculating posterior probabilities respectively of the enrollees on the basis of the score and the delta score, and an authentication object user identification function.
    Type: Application
    Filed: September 2, 2010
    Publication date: July 28, 2011
    Applicant: HITACHI, LTD.
    Inventors: Takao MURAKAMI, Kenta TAKAHASHI
  • Publication number: 20110138187
    Abstract: In additional enrollment of a template in a biometric authentication system, the template is automatically enrolled on the basis of a plurality of authentication results to assure a user's convenience and security. A post-migration authentication server receives a first template and a second template from a post-migration authentication terminal, performs authentication on the basis of the comparison result between the received first template and the user's preliminarily first enrolled template, and provisionally enrolls the first template and the second template. It repeats the reception, authentication, and provisional enrollment and calculates a match probability from a plurality of comparison results of the provisionally first enrolled templates, determines whether or not to store a second enrolled template on the basis of the match probability, and automatically enrolls the second template in the post-migration authentication server.
    Type: Application
    Filed: September 1, 2010
    Publication date: June 9, 2011
    Applicant: Hitachi, Ltd.
    Inventors: Yosuke KAGA, Osamu TAKATA, Yoshiaki ISOBE, Kenta TAKAHASHI, Takao MURAKAMI
  • Patent number: 7786833
    Abstract: An edgewise coil which includes a non-circular cross-sectional shaped conductor having a cross-sectional shape defined by a pair of first and second long sides and a pair of first and second short sides, the shaped conductor wire being laminated while being bended with using the first short side as a bending fulcrum so as to form a plurality of laminated wire layers having a rectangular shape in a plan view, wherein the pair of long sides include, in a longitudinal cross section in a pre-bending-process state before the shaped conductor wire is bended, a pair of straight-line regions extending from both ends of the second sides so as to be parallel to each other and a pair of tapered regions extending between the straight-line regions and the first short side, and the pair of tapered regions, in a longitudinal cross section in the pre-bending-process state, come closer to each other as they approach the first short side.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: August 31, 2010
    Assignee: Suncall Corporation
    Inventor: Takao Murakami
  • Publication number: 20100141373
    Abstract: An edgewise coil which includes a non-circular cross-sectional shaped conductor having a cross-sectional shape defined by a pair of first and second long sides and a pair of first and second short sides, the shaped conductor wire being laminated while being bended with using the first short side as a bending fulcrum so as to form a plurality of laminated wire layers having a rectangular shape in a plan view, wherein the pair of long sides include, in a longitudinal cross section in a pre-bending-process state before the shaped conductor wire is bended, a pair of straight-line regions extending from both ends of the second sides so as to be parallel to each other and a pair of tapered regions extending between the straight-line regions and the first short side, and the pair of tapered regions, in a longitudinal cross section in the pre-bending-process state, come closer to each other as they approach the first short side.
    Type: Application
    Filed: July 11, 2006
    Publication date: June 10, 2010
    Inventor: Takao Murakami
  • Publication number: 20100011423
    Abstract: A service providing system using the biometrics identification without inputting the user ID poses the problem that the consideration of a service is erroneously claimed to the registered user not using the service due to the erroneous identification. According to this invention, the threshold of the value of the degree of similarity for user identification is set strictly for each registered biometrics information of the user in accordance with the declaration of the loss caused by the erroneous identification.
    Type: Application
    Filed: February 26, 2009
    Publication date: January 14, 2010
    Inventors: Yoshiaki Isobe, Takao Murakami, Kenta Takahashi
  • Publication number: 20090289760
    Abstract: A biometric authentication system, authentication client terminal, and biometric authentication method are provided to reduce an expected value of the number of inputs of biometric data for authentication, while effectively preventing forgery. In a biometric authentication system, prior probabilities of enrolled users un and non-enrolled user u0 are previously set. 1:N matching is performed between feature data of a claimant v and matching feature data. The matching score is calculated for each enrolled user un. A ratio of the likelihood v=un to the likelihood v?un is calculated for each enrolled user un using the calculated matching scores. Posterior probabilities of the enrolled users un and non-enrolled user u0 are calculated, using the likelihood ratios, and the prior probabilities of both the enrolled users un and the non-enrolled user u0. Then, determination is made by comparing each posterior probability with a first threshold.
    Type: Application
    Filed: February 27, 2009
    Publication date: November 26, 2009
    Inventors: Takao Murakami, Kenta Takahashi
  • Patent number: 7481674
    Abstract: The invention provides a connector having a pair of first and second connector housings for preventing looseness between the connector housings in lateral and longitudinal directions of the connector, surely eliminating frictional wear of male and female terminals in the connector housings. The connector can reliably resist to an external vibration force. A male connector housing 13 is resiliently urged by a waterproof packing 32 toward a female connector housing 36. The male connector housing 13 has an inner housing 25 formed with a plurality of looseness prohibiting projections 30. The looseness prohibiting projection 30 has a tapered surface 30a. An inner surface of a peripheral wall 39 of the female connector housing 36 is formed with a tapered surface 41 engaged with the tapered surface 30a on complete mating of the connector housings 13, 36.
    Type: Grant
    Filed: December 24, 2004
    Date of Patent: January 27, 2009
    Assignee: Yazaki Corporation
    Inventors: Takao Murakami, Seiji Kozono