Patents by Inventor Kazunari Iwanaga

Kazunari Iwanaga 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).

  • Publication number: 20240158551
    Abstract: A fluororesin that includes a residue unit represented by formula (1), and a terminal group represented by formula (2); and a fluororesin that includes a residue unit represented by formula (1) and has a transmittance of 50% or more measured at an optical path length of 10 mm and a wavelength of 275 nm when dissolved in perfluorohexane to produce a 10 wt % perfluorohexane solution. In formula (1): Rf1, Rf2, Rf3, and Rf4 each independently represent one selected from the group consisting of fluorine atoms, C1-7 linear perfluoroalkyl groups, C3-7 branched perfluoroalkyl groups, or C3-7 cyclic perfluoroalkyl groups; the perfluoroalkyl groups may have an etheric oxygen atom; Rf1, Rf2, Rf3, and Rf4 may bond to each other to form a ring having 4 to 8 carbon atoms; and the ring may include an etheric oxygen atom. In formula (2), i is an integer of 3-20.
    Type: Application
    Filed: December 22, 2023
    Publication date: May 16, 2024
    Applicant: TOSOH CORPORATION
    Inventors: Kota SAKAGUCHI, Kazunari IWANAGA, Tomoya SHIMONO, Tomonari NAGAI, Hiroshi YAMAKAWA
  • Publication number: 20240141081
    Abstract: A fluororesin including a residue unit of formula (1) and having a haze value equal to 2% or less of a heat-press molded product (thickness 1 mm) with a small haze value of a melt-molded product and a method for producing the same, Rf1, Rf2, Rf3 and Rf4 each independently represent one of the groups consisting of a fluorine atom, a linear perfluoroalkyl group having 1 to 7 carbon atoms, a branched perfluoroalkyl group having 3 to 7 carbon atoms, and a cyclic perfluoroalkyl group having 3 to 7 carbon atoms, the perfluoroalkyl group may have an ethereal oxygen atom, Rf1, Rf2, Rf3 and Rf4 may be linked to each other to form a ring having 4 or more and 8 or less carbon atoms, and the ring may include an ethereal oxygen atom.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 2, 2024
    Applicant: TOSOH CORPORATION
    Inventors: Kota SAKAGUCHI, Tomoya SHIMONO, Tomonari NAGAI, Kazunari IWANAGA, Shohei YUMINO, Masao TANABIKI, Toru DOI
  • Publication number: 20240076426
    Abstract: The present invention relates to resin particles including a residue unit represented by the following general formula (1) and having a volume average particle diameter equal to or more than 5 ?m and equal to or less than 2008 ?m, and a method for producing thereof. Fruthermore the present invention relates to a fluororesin comprising a residue unit represented by a general formula (1) and having a weight average molecular weight Mw in a range of 5×104 to 3×105, and a yellow index of a heat-melted molded product (thickness 3 mm) after 24 h at 280° C. of equal to or less than 6, and a method for producing thereof. In the formula (1), Rf1, Rf2, Rf3, and Rf4 are each independently one of the groups consisting of a fluorine atom, a linear perfluoroalkyl group having 1 to 7 carbon atoms, a branched perfluoroalkyl group having 3 to 7 carbon atoms, or a cyclic perfluoroalkyl group having 3 to 7 carbon atoms. The perfluoroalkyl group may have an ethereal oxygen atom.
    Type: Application
    Filed: September 21, 2023
    Publication date: March 7, 2024
    Applicant: TOSOH CORPORATION
    Inventors: Shohei YUMINO, Tomoya SHIMONO, Kota SAKAGUCHI, Tomonari NAGAI, Kazunari IWANAGA, Masao TANABIKI, Toru DOI
  • Publication number: 20240059809
    Abstract: The present invention relates to resin particles including a residue unit represented by the following general formula (1) and having a volume average particle diameter equal to or more than 5 ?m and equal to or less than 2000 ?m, and a method for producing thereof. Furthermore the present invention relates to a fluororesin comprising a residue unit represented by a general formula (1) and having a weight average molecular weight Mw in a range of 5×104 to 3×105, and a yellow index of a heat-melted molded product (thickness 3 mm) after 24 h at 280° C. of equal to or less than 6, and a method for producing thereof. In the formula (1), Rf1, Rf2, Rf3, and Rf4 are each independently one of the groups consisting of a fluorine atom, a linear perfluoroalkyl group having 1 to 7 carbon atoms, a branched perfluoroalkyl group having 3 to 7 carbon atoms, or a cyclic perfluoroalkyl group having 3 to 7 carbon atoms. The perfluoroalkyl group may have an ethereal oxygen atom.
    Type: Application
    Filed: September 21, 2023
    Publication date: February 22, 2024
    Applicant: TOSOH CORPORATION
    Inventors: Shohei YUMINO, Tomoya SHIMONO, Kota SAKAGUCHI, Tomonari NAGAI, Kazunari IWANAGA, Masao TANABIKI, Toru DOI
  • Patent number: 11807702
    Abstract: The present invention relates to resin particles including a residue unit represented by the following general formula (1) and having a volume average particle diameter equal to or more than 5 ?m and equal to or less than 2000 ?m, and a method for producing thereof. Furthermore the present invention relates to a fluororesin comprising a residue unit represented by a general formula (1) and having a weight average molecular weight Mw in a range of 5×104 to 3×105, and a yellow index of a heat-melted molded product (thickness 3 mm) after 24 h at 280° C. of equal to or less than 6, and a method for producing thereof. In the formula (1), Rf1, Rf2, Rf3, and Rf4 are each independently one of the groups consisting of a fluorine atom, a linear perfluoroalkyl group having 1 to 7 carbon atoms, a branched perfluoroalkyl group having 3 to 7 carbon atoms, or a cyclic perfluoroalkyl group having 3 to 7 carbon atoms. The perfluoroalkyl group may have an ethereal oxygen atom.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: November 7, 2023
    Assignee: TOSOH CORPORATION
    Inventors: Shohei Yumino, Tomoya Shimono, Kota Sakaguchi, Tomonari Nagai, Kazunari Iwanaga, Masao Tanabiki, Toru Doi
  • Publication number: 20230125890
    Abstract: There is provided an image analysis system having an image analysis server which analyzes an input image of a monitoring area and detects a state of a specific monitored object. The image analysis server is configured to divide, in the input image of the monitoring area, a portion of an area in which the monitored object is expected to be present into a plurality of grids, generate a trained model trained by associating “1” with an image of a grid in which the monitored object is present and “0” with an image of a grid in which the monitored object is not present for each grid, calculate, for the input image, a confidence of a presence of the monitored object for each grid using the trained model, determine a presence or absence of the monitored object in the monitoring area based on confidences of the plurality of grids, and detect an abnormality when a confidence value in at least one of the grids is inconsistent with the determination result.
    Type: Application
    Filed: March 11, 2021
    Publication date: April 27, 2023
    Inventors: Keigo HASEGAWA, Wataru ITO, Kazunari IWANAGA
  • Publication number: 20230118752
    Abstract: The present invention pertains to: a fluororesin that includes a residue unit represented by formula (1), and a terminal group represented by formula (2); and a fluororesin that includes a residue unit represented by formula (1) and has a transmittance of 50% or more measured at an optical path length of 10 mm and a wavelength of 275 nm when dissolved in perfluorohexane to produce a 10 wt % perfluorohexane solution. In formula (1): Rf1, Rf2, Rf3, and Rf4 each independently represent one selected from the group consisting of fluorine atoms, C1-7 linear perfluoroalkyl groups, C3-7 branched perfluoroalkyl groups, or C3-7 cyclic perfluoroalkyl groups; the perfluoroalkyl groups may have an etheric oxygen atom; Rf1, Rf2, Rf3, and Rf4 may bond to each other to form a ring having 4 to 8 carbon atoms; and the ring may include an etheric oxygen atom. In formula (2), i is an integer of 3-20.
    Type: Application
    Filed: March 24, 2021
    Publication date: April 20, 2023
    Applicant: TOSOH CORPORATION
    Inventors: Kota SAKAGUCHI, Kazunari IWANAGA, Tomoya SHIMONO, Tomonari NAGAI, Hiroshi YAMAKAWA
  • Patent number: 11373409
    Abstract: The structure examination support system 100 in the present example is provided with a GNSS receiver 120 that measures the current location, an image pick-up device 110 that photographs a target, and a calculating device 130 that controls the image pick-up device 110, where these are equipped in a moving body. The computing device 130 controls the image pick-up device 110 on the basis of the installation location of the target that has been set in advance, the current location that has been measured by the GNSS receiver 120, and the moving speed of the vehicle so as to repeat photography a number of times, and carries out an image recognition process on each of the plurality of images outputted from the image pick-up device 110, and thus selects an image where the target is photographed and that is appropriate for the examination.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: June 28, 2022
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yu Sugimura, Kazunari Iwanaga, Yohei Akimoto
  • Publication number: 20220044027
    Abstract: The structure examination support system 100 in the present example is provided with a GNSS receiver 120 that measures the current location, an image pick-up device 110 that photographs a target, and a calculating device 130 that controls the image pick-up device 110, where these are equipped in a moving body. The computing device 130 controls the image pick-up device 110 on the basis of the installation location of the target that has been set in advance, the current location that has been measured by the GNSS receiver 120, and the moving speed of the vehicle so as to repeat photography a number of times, and carries out an image recognition process on each of the plurality of images outputted from the image pick-up device 110, and thus selects an image where the target is photographed and that is appropriate for the examination.
    Type: Application
    Filed: January 16, 2020
    Publication date: February 10, 2022
    Inventors: Yu SUGIMURA, Kazunari IWANAGA, Yohei AKIMOTO
  • Publication number: 20220041767
    Abstract: The present invention relates to resin particles including a residue unit represented by the following general formula (1) and having a volume average particle diameter equal to or more than 5 ?m and equal to or less than 2000 ?m, and a method for producing thereof. Furthermore the present invention relates to a fluororesin comprising a residue unit represented by a general formula (1) and having a weight average molecular weight Mw in a range of 5×104 to 3×105, and a yellow index of a heat-melted molded product (thickness 3 mm) after 24 h at 280° C. of equal to or less than 6, and a method for producing thereof. In the formula (1), Rf1, Rf2, Rf3, and Rf4 are each independently one of the groups consisting of a fluorine atom, a linear perfluoroalkyl group having 1 to 7 carbon atoms, a branched perfluoroalkyl group having 3 to 7 carbon atoms, or a cyclic perfluoroalkyl group having 3 to 7 carbon atoms. The perfluoroalkyl group may have an ethereal oxygen atom.
    Type: Application
    Filed: September 27, 2019
    Publication date: February 10, 2022
    Applicant: TOSOH CORPORATION
    Inventors: Shohei YUMINO, Tomoya SHIMONO, Kota SAKAGUCHI, Tomonari NAGAI, Kazunari IWANAGA, Masao TANABIKI, Toru DOI
  • Publication number: 20210380735
    Abstract: The present invention relates to a fluororesin including a residue unit represented by a following general formula (1) and having a haze value equal to or less than 2% of a heat-press molded product (thickness 1 mm) with a small haze value of a melt-molded product and a method for producing the same. In the formula (1), Rf1, Rf2, Rf3 and Rf4 each independently represent one of the groups consisting of a fluorine atom, a linear perfluoroalkyl group having 1 to 7 carbon atoms, a branched perfluoroalkyl group having 3 to 7 carbon atoms, and a cyclic perfluoroalkyl group having 3 to 7 carbon atoms, the perfluoroalkyl group may have an ethereal oxygen atom, Rf1, Rf2, Rf3 and Rf4 may be linked to each other to form a ring having 4 or more and 8 or less carbon atoms, and the ring may include an ethereal oxygen atom. The present invention further relates to a method for producing fluororesin particles that each include a fluorine-containing aliphatic ring structure.
    Type: Application
    Filed: October 8, 2019
    Publication date: December 9, 2021
    Applicant: TOSOH CORPORATION
    Inventors: Kota SAKAGUCHI, Tomoya SHIMONO, Tomonari NAGAI, Kazunari IWANAGA, Shohei YUMINO, Masao TANABIKI, Toru DOI
  • Patent number: 10853949
    Abstract: The purpose of the present invention is to provide a technology which adaptively switches video analysis methods according to a congestion situation within a video, and which carries out a suitable video analysis by a limited computational volume. Provided is an image processing device 100, wherein a congestion estimation unit 102 estimates a congestion situation within a video which is acquired from an image input unit 101. A control unit 103 switches methods for video analysis according to the congestion situation. In a situation of low congestion, an image analysis unit for use in normal situations 105 carries out the video analysis by a basic method. In a situation of high congestion, an image analysis unit for use in congested situations 106 carries out a high-precision video analysis, such as an analysis which spans a plurality of frames.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: December 1, 2020
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Yuichiro Komiya, Muneaki Yamaguchi, Hiroaki Nakakita, Kazunari Iwanaga, Junichi Togashi, Yohei Akimoto, Masaya Okada, Atsushi Sassa, Wataru Ito
  • Patent number: 10691947
    Abstract: An image monitoring system includes: a reference image generation unit generating a reference image serving as a reference image, based on an input image; a foreground extraction unit detecting, from the input image, a foreground region different from the reference image; a stationary region extraction unit extracting a stationary region from the foreground region; a feature quantity extraction unit extracting a feature quantity of the stationary region; a feature quantity recording unit recording feature quantities as a function of time; a stationary object detection unit clustering pixels, recorded feature quantities of which meet predetermined criteria, and detecting a stationary object; a left object determination unit determining whether the stationary object is a left object, based on a feature quantity of the stationary object and evaluation of the surrounding environment; and a left object management unit managing attributes of left objects, and issuing a report when a certain condition is met.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: June 23, 2020
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Kazunari Iwanaga, Wataru Ito
  • Patent number: 10346688
    Abstract: The present invention provides a system for visualizing the congestion degree of an entire facility using a monitoring camera. The system detects a crowd from a monitoring camera video and derives the magnitude (number of people) of the crowd from the edge amount thereof, and thereby estimates a congestion state in a range of camera video. The system also calculates a human flow (amount of movement of people) on the basis of a number of passing people counter and the magnitude and movement speed of the crowd, etc., and estimates the number of people in an area other than the range of camera video on the basis of a modeled crowd behavior pattern. The model is constructed by selecting a distribution function and a parameter thereof by a statistical model selection technique such as a Bayesian Information Criteria (BIC). The congestion state is plotted on a map, allowing the congestion state of an area of interest to be grasped at once.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: July 9, 2019
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Junichi Togashi, Atsushi Sassa, Takashi Yoshida, Yohei Akimoto, Kazunari Iwanaga, Tomomi Takada
  • Publication number: 20190197313
    Abstract: An image monitoring system includes: a reference image generation unit generating a reference image serving as a reference image, based on an input image; a foreground extraction unit detecting, from the input image, a foreground region different from the reference image; a stationary region extraction unit extracting a stationary region from the foreground region; a feature quantity extraction unit extracting a feature quantity of the stationary region; a feature quantity recording unit recording feature quantities as a function of time; a stationary object detection unit clustering pixels, recorded feature quantities of which meet predetermined criteria, and detecting a stationary object; a left object determination unit determining whether the stationary object is a left object, based on a feature quantity of the stationary object and evaluation of the surrounding environment; and a left object management unit managing attributes of left objects, and issuing a report when a certain condition is met.
    Type: Application
    Filed: September 21, 2017
    Publication date: June 27, 2019
    Inventors: Kazunari IWANAGA, Wataru ITO
  • Publication number: 20190180447
    Abstract: The purpose of the present invention is to provide a technology which adaptively switches video analysis methods according to a congestion situation within a video, and which carries out a suitable video analysis by a limited computational volume. Provided is an image processing device 100, wherein a congestion estimation unit 102 estimates a congestion situation within a video which is acquired from an image input unit 101. A control unit 103 switches methods for video analysis according to the congestion situation. In a situation of low congestion, an image analysis unit for use in normal situations 105 carries out the video analysis by a basic method. In a situation of high congestion, an image analysis unit for use in congested situations 106 carries out a high-precision video analysis, such as an analysis which spans a plurality of frames.
    Type: Application
    Filed: September 21, 2017
    Publication date: June 13, 2019
    Inventors: Yuichiro KOMIYA, Muneaki YAMAGUCHI, Hiroaki NAKAKITA, Kazunari IWANAGA, Junichi TOGASHI, Yohei AKIMOTO, Masaya OKADA, Atsushi SASSA, Wataru ITO
  • Patent number: 10282622
    Abstract: A system detects a candidate for an object which intrudes based on images of a visible light camera and a far-infrared camera that monitor the sea, further derives a size, a velocity, an intrusion direction, and linearity, and identifies the object to some extent. Also, the system distinguishes between a boat, a human, and a floating matter based on the luminances or the like in a far-infrared image. In addition, the system observes the periodicity of normal waves on the sea surface at a location without any object by performing the Fourier transform on the image. The accuracy of identification of an object is improved based on the correlation between the motion of waves in a normal state and the motion of the object.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: May 7, 2019
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Junichi Togashi, Wataru Ito, Masaya Okada, Kazunari Iwanaga, Miyuki Fujii
  • Publication number: 20190065859
    Abstract: A system detects a candidate for an object which intrudes based on images of a visible light camera and a far-infrared camera that monitor the sea, further derives a size, a velocity, an intrusion direction, and linearity, and identifies the object to some extent. Also, the system distinguishes between a boat, a human, and a floating matter based on the luminances or the like in a far-infrared image. In addition, the system observes the periodicity of normal waves on the sea surface at a location without any object by performing the Fourier transform on the image. The accuracy of identification of an object is improved based on the correlation between the motion of waves in a normal state and the motion of the object.
    Type: Application
    Filed: December 9, 2016
    Publication date: February 28, 2019
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Junichi TOGASHI, Wataru ITO, Masaya OKADA, Kazunari IWANAGA, Miyuki FUJII
  • Publication number: 20190012547
    Abstract: The present invention provides a system for visualizing the congestion degree of an entire facility using a monitoring camera. The system detects a crowd from a monitoring camera video and derives the magnitude (number of people) of the crowd from the edge amount thereof, and thereby estimates a congestion state in a range of camera video. The system also calculates a human flow (amount of movement of people) on the basis of a number of passing people counter and the magnitude and movement speed of the crowd, etc., and estimates the number of people in an area other than the range of camera video on the basis of a modeled crowd behavior pattern. The model is constructed by selecting a distribution function and a parameter thereof by a statistical model selection technique such as a Bayesian Information Criteria (BIC). The congestion state is plotted on a map, allowing the congestion state of an area of interest to be grasped at once.
    Type: Application
    Filed: January 12, 2016
    Publication date: January 10, 2019
    Inventors: Junichi TOGASHI, Atsushi SASSA, Takashi YOSHIDA, Yohei AKIMOTO, Kazunari IWANAGA, Tomomi TAKADA
  • Patent number: 10133937
    Abstract: The present invention provides a crowd monitoring system with which it is possible to obtain a crowd density accurately, irrespective of the congestion state. This crowd monitoring system 100 is provided with: an image acquiring unit 101 which acquires a plurality of images; an arithmetic logic unit 108; and a storage unit 106 which stores information relating to relationships between image feature quantities and an object density, acquired in advance, and information relating to relationships between motion feature quantities and the object density. The arithmetic logic unit 108 comprises: an image feature quantity acquiring unit 103 which obtains image feature quantities of objects in the acquired images; a motion line acquiring unit 104 which obtains motion lines of the objects in the acquired images; a motion feature quantity acquiring unit 105 which obtains motion feature quantities of the objects on the basis of the obtained motion lines; and a crowd density acquiring unit 107.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: November 20, 2018
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Miyako Hotta, Masanori Miyoshi, Kazunari Iwanaga, Mitsue Ito