Patents by Inventor Daisuke Sakaki

Daisuke Sakaki 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: 9273968
    Abstract: Track information generating devices, methods, and programs acquire a self-contained navigation track of a vehicle indicated by time-series pieces of self-contained navigation information, and acquire a GPS track that is a track of the vehicle indicated by time-series pieces of GPS information. The devices, methods, and compare the self-contained navigation track with the GPS track to acquire a first correction amount for obtaining the highest degree of coincidence between the self-contained navigation track and the GPS track and then correct the self-contained navigation information using a second correction amount that is smaller than the first correction amount.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: March 1, 2016
    Assignee: AISIN AW CO., LTD.
    Inventors: Yusuke Oohashi, Daisuke Sakaki, Yohei Ando
  • Patent number: 8843340
    Abstract: Track information generating devices, methods, and programs acquire a self-contained navigation track of a vehicle indicated by time-series pieces of self-contained navigation information, and acquire a GPS track of the vehicle indicated by time-series pieces of GPS information. The devices, methods, and programs compare the self-contained navigation track with the GPS track to correct the self-contained navigation information so as to reduce a difference between the self-contained navigation track and the GPS track.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: September 23, 2014
    Assignee: Aisin AW Co., Ltd.
    Inventors: Yusuke Oohashi, Daisuke Sakaki, Yohei Ando
  • Patent number: 8793090
    Abstract: Track information generating devices, methods, and programs acquire a self-contained navigation track of a vehicle indicated by time-series pieces of self-contained navigation information, acquire a matching track of the vehicle indicated by time-series pieces of information determined through a map matching process is determined as a road the vehicle is traveling, and acquire a degree of reliability of the matching track. The devices, methods, and programs acquire a GPS track that is a track of the vehicle indicated by time-series pieces of GPS information, acquire a degree of reliability of the GPS track, and set the one of the GPS track and the matching track having a higher degree of reliability as a correction target track to correct the self-contained navigation information so as to reduce a difference between the self-contained navigation track and the correction target track.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: July 29, 2014
    Assignee: Aisin Aw Co., Ltd.
    Inventors: Yusuke Oohashi, Daisuke Sakaki, Yohei Ando
  • Patent number: 8498813
    Abstract: Devices, methods, and programs identify a leading candidate point by calculating a cost for candidate points on a road, and match a vehicle position to the identified leading candidate point. The devices, methods, and programs acquire an estimated vehicle position based on dead reckoning navigation, acquire a GPS position of the vehicle, and set the candidate points for the vehicle position on nearby roads. The devices, methods, and programs calculate for each candidate point a normal cost of the candidate point with respect to the estimated position and a correction cost that corresponds to a value L1 (the value L1 being found by subtracting a width W of a road having the candidate point from a distance d between the GPS position and the candidate point), and identify the leading candidate point based on a total cost of the normal cost and the correction cost for each candidate point.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: July 30, 2013
    Assignee: Aisin AW Co., Ltd.
    Inventors: Yusuke Oohashi, Daisuke Sakaki, Yohei Ando
  • Patent number: 8396659
    Abstract: Devices, methods, and programs provide vehicle navigation. A speculative heading error is acquired that corresponds to the reliability of the vehicle heading, which corresponds to an estimated vehicle position that was calculated using a previous vehicle position as a reference. A best candidate position or the estimated vehicle position is set as the vehicle position depending on whether a heading difference between the vehicle heading and a heading when the estimated point is corrected to the best candidate position falls within the speculative heading error. Therefore, false matching can be further reduced and prompt recovery is possible even if a false match occurs.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: March 12, 2013
    Assignee: Aisin AW Co., Ltd.
    Inventors: Yohei Ando, Daisuke Sakaki, Yusuke Oohashi
  • Patent number: 8332149
    Abstract: Devices, methods, and programs correct an estimated path found by dead reckoning navigation. A point correlation value s is calculated based on a distance to a reliability circle whose radius is a speculative maximum error e that indicates a distance of an error range with respect to a GPS position. A correlation value Sp of an estimated path and a correlation value Sq of a candidate path are calculated from cumulative values of the point correlation values s. A correction that moves the estimated path is not performed if the correlation value Sq of the candidate path becomes worse than the correlation value Sp of the estimated path, and the correction of the estimated path is performed if the correlation value Sq of the candidate path does not become worse than the correlation value Sp of the estimated path. Thus, false matching can be further reduced, and the travel path can be suitably corrected.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: December 11, 2012
    Assignee: Aisin AW Co., Ltd.
    Inventors: Yusuke Oohashi, Daisuke Sakaki, Yohei Ando
  • Publication number: 20120063985
    Abstract: In a silicon manufacturing apparatus and its related manufacturing method, a zinc gas supply opening (18b, 180b, 181b, 182b, 183b, 184b, 185b, 280a) is placed above a silicon tetrachloride gas opening (16a, 160a). A part of a reactor (10, 100), heated by a heater (22), is set to a silicon depositing temperature range, during which silicon tetrachloride gas is supplied from the silicon tetrachloride gas opening to the reactor to which zinc gas is supplied from the zinc gas supply opening, whereby silicon tetrachloride is reduced with zinc in the reactor to form a silicon depositing region (S), in which silicon is deposited on a wall portion in the reactor corresponding to a region thereof that is set to the silicon depositing temperature range.
    Type: Application
    Filed: May 19, 2010
    Publication date: March 15, 2012
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Katsumasa Nakahara, Daisuke Sakaki
  • Publication number: 20110320156
    Abstract: Track information generating devices, methods, and programs acquire a self-contained navigation track of a vehicle indicated by time-series pieces of self-contained navigation information, acquire a matching track of the vehicle indicated by time-series pieces of information determined through a map matching process is determined as a road the vehicle is traveling, and acquire a degree of reliability of the matching track. The devices, methods, and programs acquire a GPS track that is a track of the vehicle indicated by time-series pieces of GPS information, acquire a degree of reliability of the GPS track, and set the one of the GPS track and the matching track having a higher degree of reliability as a correction target track to correct the self-contained navigation information so as to reduce a difference between the self-contained navigation track and the correction target track.
    Type: Application
    Filed: May 2, 2011
    Publication date: December 29, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Yusuke OOHASHI, Daisuke SAKAKI, Yohei ANDO
  • Publication number: 20110320155
    Abstract: Track information generating devices, methods, and programs acquire a self-contained navigation track of a vehicle indicated by time-series pieces of self-contained navigation information, and acquire a GPS track of the vehicle indicated by time-series pieces of GPS information. The devices, methods, and programs compare the self-contained navigation track with the GPS track to correct the self-contained navigation information so as to reduce a difference between the self-contained navigation track and the GPS track.
    Type: Application
    Filed: May 2, 2011
    Publication date: December 29, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Yusuke OOHASHI, Daisuke SAKAKI, Yohei ANDO
  • Publication number: 20110320122
    Abstract: Track information generating devices, methods, and programs acquire a self-contained navigation track of a vehicle indicated by time-series pieces of self-contained navigation information, and acquire a GPS track that is a track of the vehicle indicated by time-series pieces of GPS information. The devices, methods, and compare the self-contained navigation track with the GPS track to acquire a first correction amount for obtaining the highest degree of coincidence between the self-contained navigation track and the GPS track and then correct the self-contained navigation information using a second correction amount that is smaller than the first correction amount.
    Type: Application
    Filed: May 2, 2011
    Publication date: December 29, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Yusuke OOHASHI, Daisuke SAKAKI, Yohei ANDO
  • Publication number: 20100247416
    Abstract: A silicon manufacturing apparatus is disclosed as having a reactor tube (10) in which reaction occurs between zinc and silicon compound, zinc supply pipes (30, 30?) having heating portions to heat zinc for generating zinc gas and zinc ejecting portions ejecting and supplying zinc gas to the reactor tube, a zinc feeding section (40A, 40B) feeding zinc into the zinc supply pipes, a silicon compound supply pipe (50, 50A, 50B, 50C, 50c, 54, 57, 90) having a silicon compound ejecting portion to eject and supply silicon compound gas to the reactor tube so as to allow silicon compound gas to flow from a lower side to an upper side in the reactor tube, and a heating furnace (20) disposed outside the reactor tube to define a heating region (a) accommodating therein a part of the reactor tube, the heating portion and the zinc ejecting section for heating the same so as to allow the reactor tube, through which zinc gas and silicon compound gas flow, to have the temperature distribution such that a temperature closer to
    Type: Application
    Filed: October 20, 2008
    Publication date: September 30, 2010
    Inventors: Yoshinori Takeuchi, Daisuke Sakaki, Tadashi Ohashi, Hisashi Matsumura
  • Publication number: 20100217522
    Abstract: Devices, methods, and programs provide vehicle navigation. A speculative heading error is acquired that corresponds to the reliability of the vehicle heading, which corresponds to an estimated vehicle position that was calculated using a previous vehicle position as a reference. A best candidate position or the estimated vehicle position is set as the vehicle position depending on whether a heading difference between the vehicle heading and a heading when the estimated point is corrected to the best candidate position falls within the speculative heading error. Therefore, false matching can be further reduced and prompt recovery is possible even if a false match occurs.
    Type: Application
    Filed: February 19, 2010
    Publication date: August 26, 2010
    Applicant: AISIN AW CO., LTD
    Inventors: Yohei Ando, Daisuke Sakaki, Yusuke Oohashi
  • Publication number: 20100217524
    Abstract: Devices, methods, and programs identify a leading candidate point by calculating a cost for candidate points on a road, and match a vehicle position to the identified leading candidate point. The devices, methods, and programs acquire an estimated vehicle position based on dead reckoning navigation, acquire a GPS position of the vehicle, and set the candidate points for the vehicle position on nearby roads. The devices, methods, and programs calculate for each candidate point a normal cost of the candidate point with respect to the estimated position and a correction cost that corresponds to a value L1 (the value L1 being found by subtracting a width W of a road having the candidate point from a distance d between the GPS position and the candidate point), and identify the leading candidate point based on a total cost of the normal cost and the correction cost for each candidate point.
    Type: Application
    Filed: February 19, 2010
    Publication date: August 26, 2010
    Applicant: AISIN AW CO., LTD.
    Inventors: Yusuke Oohashi, Daisuke Sakaki, Yohei Ando
  • Publication number: 20100217517
    Abstract: Devices, methods, and programs correct an estimated path found by dead reckoning navigation. A point correlation value s is calculated based on a distance to a reliability circle whose radius is a speculative maximum error e that indicates a distance of an error range with respect to a GPS position. A correlation value Sp of an estimated path and a correlation value Sq of a candidate path are calculated from cumulative values of the point correlation values s. A correction that moves the estimated path is not performed if the correlation value Sq of the candidate path becomes worse than the correlation value Sp of the estimated path, and the correction of the estimated path is performed if the correlation value Sq of the candidate path does not become worse than the correlation value Sp of the estimated path. Thus, false matching can be further reduced, and the travel path can be suitably corrected.
    Type: Application
    Filed: February 19, 2010
    Publication date: August 26, 2010
    Applicant: AISIN AW CO., LTD.
    Inventors: Yusuke Oohashi, Daisuke Sakaki, Yohei Ando