Patents by Inventor Keita Nagai

Keita Nagai 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: 12367660
    Abstract: A learning system which is capable of easily collecting data of affected parts having completely recovered, as training data. When it is determined that an affected part has completely recovered based on affected-part image data generated by shooting the affected part, image data accompanied with the same affected part ID as that of the affected-part image data is identified from among image data set stored in a storage device of the learning system. The actual number of days to a complete recovery of the affected part is calculated from shooting dates of the identified image data and the affected-part image data, and is added to the affected-part image data. The affected-part image data accompanied with the actual number of days to the complete recovery is used as training data to create a trained model that predicts the number of days to a complete recovery of the affected part.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: July 22, 2025
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Keita Nagai, Kazuomi Toguchi, Honami Watanabe
  • Publication number: 20250106580
    Abstract: An imaging apparatus includes an imaging circuit and at least one CPU or at least one circuit configured to realize the functions of the following units: a conversion unit configured to convert a sound signal acquired by a microphone including a plurality of microphone elements disposed at respective predetermined angles into stereophonic sound data; an extraction unit configured to extract a sound signal of a specific sound source from the sound signal acquired by the microphone and convert the sound signal of the specific sound source into omnidirectional data of the stereophonic sound data; a combination processing unit configured to combine the stereophonic sound data and the omnidirectional data; and a recording unit configured to record sound data output from the combination processing unit and image data acquired by the imaging circuit.
    Type: Application
    Filed: September 18, 2024
    Publication date: March 27, 2025
    Inventors: KEITA NAGAI, OSAMU HARADA
  • Publication number: 20240340527
    Abstract: An electronic apparatus comprises a sound reception unit that receives sound data from a sound transmission device by a wireless communication unit, a sound transmission unit that transmits sound data to a sound reception device by a wireless communication unit, and a control unit that switches, in accordance with an operation state of the electronic apparatus, between a first operation of receiving the sound data from the sound transmission device and transmitting the sound data to the sound reception device by the sound transmission unit and a second operation in which the sound reception device receives the sound data from the sound transmission device.
    Type: Application
    Filed: April 2, 2024
    Publication date: October 10, 2024
    Inventor: KEITA NAGAI
  • Publication number: 20230169756
    Abstract: A learning system which is capable of easily collecting data of affected parts having completely recovered, as training data. When it is determined that an affected part has completely recovered based on affected-part image data generated by shooting the affected part, image data accompanied with the same affected part ID as that of the affected-part image data is identified from among image data set stored in a storage device of the learning system. The actual number of days to a complete recovery of the affected part is calculated from shooting dates of the identified image data and the affected-part image data, and is added to the affected-part image data. The affected-part image data accompanied with the actual number of days to the complete recovery is used as training data to create a trained model that predicts the number of days to a complete recovery of the affected part.
    Type: Application
    Filed: November 3, 2022
    Publication date: June 1, 2023
    Inventors: Keita Nagai, Kazuomi Toguchi, Honami Watanabe
  • Patent number: 11412140
    Abstract: An electronic device comprising: a line-of-sight detection unit configured to receive line-of-sight input from a user and detect a viewed position of the user; an acquisition unit configured to acquire first distance information that corresponds to a distance to an eye of the user; and a control unit configured to 1) set determination time based on the first distance information, and 2) determine that gaze has occurred, in a case where determination is made that the viewed position does not continuously change longer than the determination time.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: August 9, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keita Nagai
  • Publication number: 20210368100
    Abstract: An electronic device comprising: a line-of-sight detection unit configured to receive line-of-sight input from a user and detect a viewed position of the user; an acquisition unit configured to acquire first distance information that corresponds to a distance to an eye of the user; and a control unit configured to 1) set determination time based on the first distance information, and 2) determine that gaze has occurred, in a case where determination is made that the viewed position does not continuously change longer than the determination time.
    Type: Application
    Filed: May 18, 2021
    Publication date: November 25, 2021
    Inventor: Keita Nagai
  • Patent number: 11084792
    Abstract: The present invention provides a method for producing a difluoromethylene compound and an intermediate thereof, which are useful in the field of pharmaceuticals. Specifically provided is a method for producing a difluoromethylene compound, including a step of allowing a compound represented by formula (6): [wherein L1 represents a halogen atom, a cyano group, a lower alkyl group, a halo-lower alkyl group, a cycloalkyl group, a lower alkoxy group, a halo-lower alkoxy group, or a hydroxy lower alkyl group; R1 represents a lower alkyl group, a halogen atom, a halo-lower alkyl group, a cycloalkyl group, a cyano group, or a hydroxy lower alkyl group; and W represents a nitrogen atom or a methine group] to react with a compound represented by formula (7): [wherein R2 represents a lower alkyl group, a halo-lower alkyl group, a cycloalkyl group, a lower alkenyl group, or an aralkyl group; and R3 represents a chlorine atom, a bromine atom, or an iodine atom].
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 10, 2021
    Assignee: SATO PHARMACEUTICAL CO., LTD.
    Inventors: Keita Nagai, Toshihiko Ozaki
  • Publication number: 20200190038
    Abstract: The present invention provides a method for producing a difluoromethylene compound and an intermediate thereof, which are useful in the field of pharmaceuticals. Specifically provided is a method for producing a difluoromethylene compound, including a step of allowing a compound represented by formula (6): [wherein L1 represents a halogen atom, a cyano group, a lower alkyl group, a halo-lower alkyl group, a cycloalkyl group, a lower alkoxy group, a halo-lower alkoxy group, or a hydroxy lower alkyl group; R1 represents a lower alkyl group, a halogen atom, a halo-lower alkyl group, a cycloalkyl group, a cyano group, or a hydroxy lower alkyl group; and W represents a nitrogen atom or a methine group] to react with a compound represented by formula (7): [wherein R2 represents a lower alkyl group, a halo-lower alkyl group, a cycloalkyl group, a lower alkenyl group, or an aralkyl group; and R3 represents a chlorine atom, a bromine atom, or an iodine atom].
    Type: Application
    Filed: April 27, 2018
    Publication date: June 18, 2020
    Applicant: SATO PHARMACEUTICAL CO., LTD.
    Inventors: Keita NAGAI, Toshihiko OZAKI
  • Patent number: 9876960
    Abstract: An image pickup apparatus which is capable of shortening a time period required for photometric measurement and obtaining an accurate photometric measurement value when there has been a shift from a photometric measurement operation using an image pickup device to a photometric measurement operation using a linear photometric sensor. When there has been no shift from a photometric measurement operation by the image pickup device to a photometric measurement operation by the photometric sensor, the photometric sensor performs a first photometric measurement operation for a plurality of times, and when there has been a shift from a photometric measurement operation by the image pickup device to a photometric measurement operation by the photometric sensor, a second photometric measurement operation is performed for a smaller number of times than that of the first photometric measurement operation according to a result of photometric measurement performed by the image pickup device.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: January 23, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keita Nagai
  • Patent number: 9650380
    Abstract: A compound having an URAT1 inhibitory activity, and an URAT1 inhibitor, a blood uric acid level-reducing agent and a pharmaceutical composition containing the compound. More specifically, a compound represented by the formula (I): wherein R1 is -Q1-A1 or the like; R2 is a hydrogen atom, a halogen atom, a lower alkyl group or the like; W1, W2, W3 and W4 are each independently a nitrogen atom or a methine group optionally having substituents, or the like; X and Y are each a single bond, an oxygen atom or the like; Z is a hydroxyl group or COOR3 or the like.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: May 16, 2017
    Assignee: SATO PHARMACEUTICAL CO., LTD.
    Inventors: Keita Nagai, Motoaki Baba, Shinichi Fujioka, Koh Nagasawa, Hirobumi Takahashi, Eri Kondoh, Sachie Sogo, Kenichi Tanaka, Yoshiki Itoh
  • Patent number: 9648249
    Abstract: An image capturing apparatus comprises an image capturing unit, a calculation unit configured to calculate light amount variation characteristics of light from an object, a photometric value determination unit configured to determine a photometry value used for determination of an exposure condition based on the light amount variation characteristics calculated by the calculation unit, and an exposure condition determination unit configured to determine an exposure condition when performing exposure of the image capturing unit at a timing set based on the light amount variation characteristics calculated by the calculation unit, based on the photometry value determined by the photometric value determination unit.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: May 9, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Sugawara, Naoyuki Nakagawara, Keita Nagai
  • Publication number: 20170044158
    Abstract: A compound having an URAT1 inhibitory activity, and an URAT1 inhibitor, a blood uric acid level-reducing agent and a pharmaceutical composition containing the compound. More specifically, a compound represented by the formula (I): wherein R1 is -Q1-A1 or the like; R2 is a hydrogen atom, a halogen atom, a lower alkyl group or the like; W1, W2, W3 and W4 are each independently a nitrogen atom or a methine group optionally having substituents, or the like; X and Y are each a single bond, an oxygen atom or the like; Z is a hydroxyl group or COOR3 or the like.
    Type: Application
    Filed: October 27, 2016
    Publication date: February 16, 2017
    Applicant: SATO PHARMACEUTICAL CO., LTD.
    Inventors: Keita NAGAI, Motoaki BABA, Shinichi FUJIOKA, Koh NAGASAWA, Hirobumi TAKAHASHI, Eri KONDOH, Sachie SOGO, Kenichi TANAKA, Yoshiki ITOH
  • Publication number: 20160366321
    Abstract: An image pickup apparatus which is capable of shortening a time period required for photometric measurement and obtaining an accurate photometric measurement value when there has been a shift from a photometric measurement operation using an image pickup device to a photometric measurement operation using a linear photometric sensor. When there has been no shift from a photometric measurement operation by the image pickup device to a photometric measurement operation by the photometric sensor, the photometric sensor performs a first photometric measurement operation for a plurality of times, and when there has been a shift from a photometric measurement operation by the image pickup device to a photometric measurement operation by the photometric sensor, a second photometric measurement operation is performed for a smaller number of times than that of the first photometric measurement operation according to a result of photometric measurement performed by the image pickup device.
    Type: Application
    Filed: June 9, 2016
    Publication date: December 15, 2016
    Inventor: Keita Nagai
  • Patent number: 9512119
    Abstract: The present invention relates to a compound having an URAT1 inhibitory activity, and to an URAT1 inhibitor, a blood uric acid level-reducing agent and a pharmaceutical composition containing the compound. More specifically, the present invention relates to a compound represented by the formula (I): wherein R1 is -Q1-A1 or the like; R2 is a hydrogen atom, a halogen atom, a lower alkyl group or the like; W1, W2, W3 and W4 are each independently a nitrogen atom or a methine group optionally having substituents, or the like; X and Y are each a single bond, an oxygen atom or the like; Z is a hydroxyl group or COOR3 or the like.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: December 6, 2016
    Assignee: SATO PHARMACEUTICAL CO., LTD.
    Inventors: Keita Nagai, Motoaki Baba, Shinichi Fujioka, Koh Nagasawa, Hirobumi Takahashi, Eri Kondoh, Sachie Sogo, Kenichi Tanaka, Yoshiki Itoh
  • Patent number: 9359350
    Abstract: The present invention relates to a compound that has URAT1 inhibitory action, and a URAT1 inhibitor, a blood uric acid level-reducing agent and a pharmaceutical composition comprising the compound. More specifically, the present invention relates to a compound represented by Formula (I) below.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: June 7, 2016
    Assignee: SATO PHARMACEUTICAL CO., LTD.
    Inventors: Keita Nagai, Koh Nagasawa, Hirobumi Takahashi, Motoaki Baba, Shinichi Fujioka, Eri Kondoh, Kenichi Tanaka, Yoshiki Itoh
  • Publication number: 20150203490
    Abstract: The present invention relates to a compound that has URAT1 inhibitory action, and a URAT1 inhibitor, a blood uric acid level-reducing agent and a pharmaceutical composition comprising the compound. More specifically, the present invention relates to a compound represented by Formula (I) below.
    Type: Application
    Filed: February 11, 2015
    Publication date: July 23, 2015
    Applicant: SATO PHARMACEUTICAL CO., LTD.
    Inventors: Keita NAGAI, Koh NAGASAWA, Hirobumi TAKAHASHI, Motoaki BABA, Shinichi FUJIOKA, Eri KONDOH, Kenichi TANAKA, Yoshiki ITOH
  • Publication number: 20150191463
    Abstract: The present invention relates to a compound having an URAT1 inhibitory activity, and to an URAT1 inhibitor, a blood uric acid level-reducing agent and a pharmaceutical composition containing the compound. More specifically, the present invention relates to a compound represented by the formula (I): wherein R1 is -Q1-A1 or the like; R2 is a hydrogen atom, a halogen atom, a lower alkyl group or the like; W1, W2, W3 and W4 are each independently a nitrogen atom or a methine group optionally having substituents, or the like; X and Y are each a single bond, an oxygen atom or the like; Z is a hydroxyl group or COOR3 or the like.
    Type: Application
    Filed: July 26, 2013
    Publication date: July 9, 2015
    Applicant: SATO PHARMACEUTICAL CO., LTD.
    Inventors: Keita Nagai, Motoaki Baba, Shinichi Fujioka, Koh Nagasawa, Hirobumi Takahashi, Eri Kondoh, Sachie Sogo, Kenichi Tanaka, Yoshiki Itoh
  • Publication number: 20150138392
    Abstract: An image capturing apparatus comprises an image capturing unit, a calculation unit configured to calculate light amount variation characteristics of light from an object, a photometric value determination unit configured to determine a photometry value used for determination of an exposure condition based on the light amount variation characteristics calculated by the calculation unit, and an exposure condition determination unit configured to determine an exposure condition when performing exposure of the image capturing unit at a timing set based on the light amount variation characteristics calculated by the calculation unit, based on the photometry value determined by the photometric value determination unit.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Atsushi Sugawara, Naoyuki Nakagawara, Keita Nagai
  • Patent number: 8987473
    Abstract: The present invention relates to a compound that has URAT1 inhibitory action, and a URAT1 inhibitor, a blood uric acid level-reducing agent and a pharmaceutical composition comprising the compound. More specifically, the present invention relates to a compound represented by Formula (I) below.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: March 24, 2015
    Assignee: Sato Pharmaceutical Co., Ltd.
    Inventors: Keita Nagai, Koh Nagasawa, Hirobumi Takahashi, Motoaki Baba, Shinichi Fujioka, Eri Kondoh, Kenichi Tanaka, Yoshiki Itoh
  • Publication number: 20140005221
    Abstract: The present invention relates to a compound that has URAT1 inhibitory action, and a URAT1 inhibitor, a blood uric acid level-reducing agent and a pharmaceutical composition comprising the compound. More specifically, the present invention relates to a compound represented by Formula (I) below.
    Type: Application
    Filed: January 30, 2012
    Publication date: January 2, 2014
    Applicant: SATO PHARMACEUTICAL CO., LTD.
    Inventors: Keita Nagai, Koh Nagasawa, Hirobumi Takahashi, Motoaki Baba, Shinichi Fujioka, Eri Kondoh, Kenichi Tanaka, Yoshiki Itoh