Patents by Inventor Hitoshi Sano

Hitoshi Sano 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: 20240382065
    Abstract: An information processing apparatus (2000) detects an abnormal region (30) in each of a plurality of video frames (14) constituting video data (12) in which the inside of a body is captured. The information processing apparatus (2000) outputs output information related to the detected abnormal region (30). Herein, the information processing apparatus (2000) starts outputting of the output information when a detection score based on a proportion of the number of the video frames (14) in which the abnormal region (30) is detected becomes equal to or more than a first threshold value in a state where outputting of the output information is not being performed. Further, the information processing apparatus (2000) ends outputting of the output information when the detection score becomes equal to or less than a second threshold value in a state where outputting of the output information is being performed.
    Type: Application
    Filed: July 30, 2024
    Publication date: November 21, 2024
    Applicants: NEC Corporation, NATIONAL CANCER CENTER
    Inventors: Ikuma TAKAHASHI, Maki SANO, Kimiyasu TAKOH, Motoyasu OKUTSU, Chiemi TANAKA, Masahiro SAIKOU, Hitoshi IMAOKA, Kenichi KAMIJO, Ryuji HAMAMOTO, Yutaka SAITO, Masayoshi YAMADA
  • Publication number: 20240382066
    Abstract: An information processing apparatus (2000) detects an abnormal region (30) in each of a plurality of video frames (14) constituting video data (12) in which the inside of a body is captured. The information processing apparatus (2000) outputs output information related to the detected abnormal region (30). Herein, the information processing apparatus (2000) starts outputting of the output information when a detection score based on a proportion of the number of the video frames (14) in which the abnormal region (30) is detected becomes equal to or more than a first threshold value in a state where outputting of the output information is not being performed. Further, the information processing apparatus (2000) ends outputting of the output information 10 when the detection score becomes equal to or less than a second threshold value in a state where outputting of the output information is being performed.
    Type: Application
    Filed: July 30, 2024
    Publication date: November 21, 2024
    Applicants: NEC CORPORATION, NATIONAL CANCER CENTER
    Inventors: Ikuma TAKAHASHI, Maki SANO, Kimiyasu TAKOH, Motoyasu OKUTSU, Chiemi TANAKA, Masahiro SAIKOU, Hitoshi IMAOKA, Kenichi KAMIJO, Ryuji HAMAMOTO, Yutaka SAITO, Masayoshi YAMADA
  • Publication number: 20240382064
    Abstract: An information processing apparatus (2000) detects an abnormal region (30) in each of a plurality of video frames (14) constituting video data (12) in which the inside of a body is captured. The information processing apparatus (2000) outputs output information related to the detected abnormal region (30). Herein, the information processing apparatus (2000) starts outputting of the output information when a detection score based on a proportion of the number of the video frames (14) in which the abnormal region (30) is detected becomes equal to or more than a first threshold value in a state where outputting of the output information is not being performed. Further, the information processing apparatus (2000) ends outputting of the output information when the detection score becomes equal to or less than a second threshold value in a state where outputting of the output information is being performed.
    Type: Application
    Filed: July 30, 2024
    Publication date: November 21, 2024
    Applicants: NEC CORPORATION, NATIONAL CANCER CENTER
    Inventors: Ikuma TAKAHASHI, Maki Sano, Kimiyasu Tokoh, Motoyasu Okutsu, Chiemi Tanaka, Masahiro Saikou, Hitoshi Imaoka, Kenichi Kamijo, Ryuji Hamamoto, Yutaka Saito, Masayoshi Yamada
  • Patent number: 12099326
    Abstract: A toner comprising a toner particle containing a binder resin containing at least 50 mass % of a polyester resin, wherein the polyester resin contains a polyester resin A having a silicone segment, and in XPS analysis, when X is a ratio of the number of silicon atoms attributable to silicone segments relative to a total number of measured atoms, X1 is a value of the X on the toner particle surface, X2 is a value of the X at a depth of 30 nm from the surface, Z is a ratio of the number of carbon atoms attributable to ester bonds relative to a total number of measured atoms, Z1 is a value of the Z on the toner particle surface and Z2 is a value of the Z at a depth of 30 nm from the toner particle surface, X1, Z1, X2 and Z2 satisfy a specific relationship.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: September 24, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shin Kitamura, Nobuyoshi Sugahara, Daisuke Tsujimoto, Kazunari Ooyama, Yuu Nishimura, Kazuki Murata, Toru Takahashi, Ryo Nakajima, Hitoshi Sano, Koh Ishigami, Takaho Shibata
  • Patent number: 12075969
    Abstract: An information processing apparatus (2000) detects an abnormal region (30) in each of a plurality of video frames (14) constituting video data (12) in which the inside of a body is captured. The information processing apparatus (2000) outputs output information related to the detected abnormal region (30). Herein, the information processing apparatus (2000) starts outputting of the output information when a detection score based on a proportion of the number of the video frames (14) in which the abnormal region (30) is detected becomes equal to or more than a first threshold value in a state where outputting of the output information is not being performed. Further, the information processing apparatus (2000) ends outputting of the output information when the detection score becomes equal to or less than a second threshold value in a state where outputting of the output information is being performed.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: September 3, 2024
    Assignees: NEC CORPORATION, NATIONAL CANCER CENTER
    Inventors: Ikuma Takahashi, Maki Sano, Kimiyasu Takoh, Motoyasu Okutsu, Chiemi Tanaka, Masahiro Saikou, Hitoshi Imaoka, Kenichi Kamijo, Ryuji Hamamoto, Yutaka Saito, Masayoshi Yamada
  • Publication number: 20240280920
    Abstract: A toner includes toner particles containing a binder resin, a colorant, and inorganic fine particles, in which in a depth profile of an element distribution in a depth region from the outermost surface of a particle to a depth of 500 nm the depth profile being obtained by an element analysis performed by X-ray photoelectron spectroscopy using the toner as a sample, two or more minimum points of a concentration of a carbon element in the depth region exist, a concentration of an inorganic element becomes a maximum value at a depth position corresponding to each of the minimum points, and the inorganic element is an element derived from the inorganic fine particle.
    Type: Application
    Filed: March 26, 2024
    Publication date: August 22, 2024
    Inventors: Kazunari Ooyama, Yuu Nishimura, Nobuyoshi Sugahara, Hitoshi Sano, Toru Takahashi, Kazuki Murata, Daisuke Tsujimoto, Koh Ishigami, Shin Kitamura, Takaho Shibata, Ryo Nakajima
  • Publication number: 20240134300
    Abstract: Provided is a toner comprising a toner particle comprising a binder resin and a. silica fine particle, wherein a total content of a polyvalent metal elements in the toner particle is 0.10 to 2.50 ?mol/g, a number-average particle diameter of a primary particle of the silica fine particle is 40 to 500 nm, and in the DD/MAS measurement of solid 29Si-NMR of the silica fine particle, peak PD1 corresponding to a silicon atom represented by Sia in a structure represented by formula (1) and peak PD2 corresponding to a silicon atom represented by Sib in a structure represented by formula (2) are observed, and when an area of the peak PD1 is defined as SD1 and an area of the peak PD2 is defined as SD2, SD1 and SD2 satisfy: 1.2?(SD1+SD2)/SD1?10.0.
    Type: Application
    Filed: October 2, 2023
    Publication date: April 25, 2024
    Inventors: HITOSHI SANO, SHIN KITAMURA, TORU TAKAHASHI, RYUICHIRO MATSUO, RYUJI MURAYAMA, TAKAKUNI KOBORI, YOSHIHIRO OGAWA
  • Publication number: 20240069457
    Abstract: The toner contains binder resin-containing toner particles and silica fine particle S1, wherein the weight-average particle diameter of the toner is 4.0-15.0 ?m, both inclusive, peaks originating with the silica fine particle S1 are observed in 29 Si-NMR measurement of the silica fine particle S1, and, in the spectrum obtained by 29Si CP/MAS NMR or 29Si DD/MAS NMR, the peak area of a peak corresponding to the D1 unit structure in the silica fine particle S1, the peak area of a peak corresponding to the D2 unit structure in the silica fine particle S1, and the peak area of a peak corresponding to the Q unit structure in the silica fine particle S1 satisfy a prescribed relationship.
    Type: Application
    Filed: October 25, 2023
    Publication date: February 29, 2024
    Inventors: RYUJI MURAYAMA, SHIN KITAMURA, TORU TAKAHASHI, DAISUKE TSUJIMOTO, RYUICHIRO MATSUO, HITOSHI SANO, NOBUYUKI FUJITA, SHUJI YAMADA, YUKA GUNJI, TAKAKUNI KOBORI, YOSHIHIRO OGAWA, ATSUHIKO OHMORI, HIROKI KAGAWA, KEISUKE ADACHI, TOMOKO SUGITA
  • Publication number: 20230408944
    Abstract: A toner which has a toner particle and silica fine particle A on a surface of the toner particle, wherein a weight average particle diameter of the toner is 4.0 to 15.0 ?m, a carbon loss ratio when the silica fine particle A is washed with hexane is 5 to 70%, and a temperature at which a differential coefficient of a nine-point moving average of integrated values integrated from 35° C. reaches 4000 or more for an intensity of an obtained ion having a mass number (M/z) of 207 is 270° C. or higher, when mass spectrometry is carried out at a sampling interval of 0.4 seconds while heating the silica fine particle A under specific conditions.
    Type: Application
    Filed: April 27, 2023
    Publication date: December 21, 2023
    Inventors: DAISUKE TSUJIMOTO, TORU TAKAHASHI, RYUICHIRO MATSUO, SHIN KITAMURA, NOBUYUKI FUJITA, RYUJI MURAYAMA, HITOSHI SANO, TAKAKUNI KOBORI, YOSHIHIRO OGAWA
  • Publication number: 20230408940
    Abstract: A toner comprising a toner particle and a silica fine particle A on a surface of the toner particle, wherein: a weight-average particle diameter of the toner is 4.0 to 15.0 ?m; the silica fine particle A comprises a silicone oil and a carbon loss ratio when the silica fine particle A is washed with hexane is 5 to 70%; and an area of each peak obtained in a solid-state CP/MAS 29Si-NMR measurement of the silica fine particle A and of the silica fine particle A after washing thereof with hexane is in a specific range.
    Type: Application
    Filed: April 27, 2023
    Publication date: December 21, 2023
    Inventors: RYUICHIRO MATSUO, TORU TAKAHASHI, DAISUKE TSUJIMOTO, SHIN KITAMURA, RYUJI MURAYAMA, HITOSHI SANO, NOBUYUKI FUJITA, SHUJI YAMADA, YUKA GUNJI, TAKAKUNI KOBORI, YOSHIHIRO OGAWA
  • Publication number: 20230408943
    Abstract: A toner comprising a toner particle and a silica fine particle A on a surface of the toner particle, wherein: a weight-average particle diameter of the toner is 4.0 to 15.0 ?m; the silica fine particle A is a treated silica fine particle having been surface-treated; and areas of each peak which is obtained by a solid-state DD/MAS 29Si-NMR measurement of the silica fine particle A and the silica fine particle A after washing thereof with hexane is in a specific range, and a full width at half maximum of the peak which is obtained by a solid-state DD/MAS 29Si-NMR measurement of the silica fine particle A is in a specific range.
    Type: Application
    Filed: April 27, 2023
    Publication date: December 21, 2023
    Inventors: SHIN KITAMURA, TORU TAKAHASHI, DAISUKE TSUJIMOTO, RYUICHIRO MATSUO, RYUJI MURAYAMA, HITOSHI SANO, NOBUYUKI FUJITA, SHUJI YAMADA, YUKA GUNJI, TAKAKUNI KOBORI, YOSHIHIRO OGAWA
  • Patent number: 11720036
    Abstract: A toner comprising a toner particle comprising a binder resin including a polyester resin, and a polyolefin resin having a sulfonic acid group, wherein the polyolefin resin having a sulfonic acid group is a polymer in which a vinyl polymer is bonded to a polyolefin, a content ratio of a monomer unit containing a sulfonic acid group in the vinyl polymer is from 1.0 mass % to 20.0 mass %, in a FT-IR spectrum obtained through measurement of a large particle size toner and a small particle size toner resulting from dividing, on a number basis, the toner into two substantially equal parts, a ratio of an intensity of a maximum absorption peak in a range from 1130 cm?1 to 1170 cm?1 with respect to an intensity of a maximum absorption peak in a range from 1713 cm?1 to 1723 cm?1 exhibits a specific relationship.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: August 8, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takakuni Kobori, Kenta Mitsuiki, Hitoshi Sano, Wakiko Katsumata, Daisuke Yamashita, Yosuke Iwasaki, Takeshi Ohtsu, Takaho Shibata, Masaharu Miura, Koh Ishigami, Yuichi Mizo
  • Patent number: 11698594
    Abstract: A toner including a toner particle comprising a binder resin and a crystalline polyester, wherein the binder resin contains a polyester having a structure represented by the following formula (1): in formula (1), Rs each independently represent hydrogen, a methyl group, or a phenyl group; A represents a polyester segment; B represents a polyester segment or any functional group selected from the group consisting of —R1OH, —R1COOH, and —R1NH2 wherein R1 represents a single bond or a C1-4 alkylene group; and the average repeat number n is 10 to 80.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: July 11, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toru Takahashi, Nobuyoshi Sugahara, Hitoshi Sano, Kazunari Ooyama, Yuu Nishimura, Kohji Takenaka, Koh Ishigami
  • Patent number: 11429032
    Abstract: A toner containing a toner particle that contains a binder resin including a polyester resin, and a polyolefin resin having —COOM that is a neutralized carboxy group with a monovalent metal ion M, wherein the polyolefin resin having —COOM is a polymer in which a vinyl polymer is bonded to a polyolefin, a content of a monomer unit containing —COOM in the polyolefin resin having —COOM is 1 to 20 mass %, and in a FT-IR spectrum obtained through measurement of a large particle size-side particle group and a small particle size-side particle group obtained by dividing the toner into two substantially equal parts, on a number basis, a ratio of the intensity of a maximum absorption peak in a range from 1545 cm?1 to 1555 cm?1 with respect to the intensity of a maximum absorption peak in a range from 1713 cm?1 to 1723 cm?1 exhibits a specific relationship.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: August 30, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takaho Shibata, Yuichi Mizo, Koh Ishigami, Takakuni Kobori, Masaharu Miura, Takeshi Ohtsu, Yosuke Iwasaki, Daisuke Yamashita, Ryo Nakajima, Wakiko Katsumata, Hitoshi Sano, Kenta Mitsuiki, Rei Hijikawa
  • Publication number: 20220050398
    Abstract: A toner includes toner particles containing a binder resin, a colorant, and inorganic fine particles, in which in a depth profile of an element distribution in a depth region from the outermost surface of a particle to a depth of 500 nm the depth profile being obtained by an element analysis performed by X-ray photoelectron spectroscopy using the toner as a sample, two or more minimum points of a concentration of a carbon element in the depth region exist, a concentration of an inorganic element becomes a maximum value at a depth position corresponding to each of the minimum points, and the inorganic element is an element derived from the inorganic fine particle.
    Type: Application
    Filed: July 22, 2021
    Publication date: February 17, 2022
    Inventors: Kazunari Ooyama, Yuu Nishimura, Nobuyoshi Sugahara, Hitoshi Sano, Toru Takahashi, Kazuki Murata, Daisuke Tsujimoto, Koh Ishigami, Shin Kitamura, Takaho Shibata, Ryo Nakajima
  • Publication number: 20210397106
    Abstract: A toner comprising a toner particle comprising a binder resin including a polyester resin, and a polyolefin resin having a sulfonic acid group, wherein the polyolefin resin having a sulfonic acid group is a polymer in which a vinyl polymer is bonded to a polyolefin, a content ratio of a monomer unit containing a sulfonic acid group in the vinyl polymer is from 1.0 mass % to 20.0 mass %, in a FT-IR spectrum obtained through measurement of a large particle size toner and a small particle size toner resulting from dividing, on a number basis, the toner into two substantially equal parts, a ratio of an intensity of a maximum absorption peak in a range from 1130 cm?1 to 1170 cm?1 with respect to an intensity of a maximum absorption peak in a range from 1713 cm?1 to 1723 cm?1 exhibits a specific relationship.
    Type: Application
    Filed: June 10, 2021
    Publication date: December 23, 2021
    Inventors: Takakuni Kobori, Kenta Mitsuiki, Hitoshi Sano, Wakiko Katsumata, Daisuke Yamashita, Yosuke Iwasaki, Takeshi Ohtsu, Takaho Shibata, Masaharu Miura, Koh Ishigami, Yuichi Mizo
  • Publication number: 20210302854
    Abstract: A toner comprising a toner particle containing a binder resin containing at least 50 mass % of a polyester resin, wherein the polyester resin contains a polyester resin A having a silicone segment, and in XPS analysis, when X is a ratio of the number of silicon atoms attributable to silicone segments relative to a total number of measured atoms, X1 is a value of the X on the toner particle surface, X2 is a value of the X at a depth of 30 nm from the surface, Z is a ratio of the number of carbon atoms attributable to ester bonds relative to a total number of measured atoms, Z1 is a value of the Z on the toner particle surface and Z2 is a value of the Z at a depth of 30 nm from the toner particle surface, X1, Z1, X2 and Z2 satisfy a specific relationship.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Inventors: Shin Kitamura, Nobuyoshi Sugahara, Daisuke Tsujimoto, Kazunari Ooyama, Yuu Nishimura, Kazuki Murata, Toru Takahashi, Ryo Nakajima, Hitoshi Sano, Koh lshigami, Takaho Shibata
  • Publication number: 20210302853
    Abstract: A toner comprising a toner particle containing a binder resin and a polymer A, wherein the binder resin contains a polyester resin having a specific structure, the polymer A has a first monomer unit derived from a specific (meth)acrylic acid ester and a second monomer unit different from the first monomer unit, a content ratio of the first monomer unit in the polymer A is 5.0 mol % to 60.0 mol % while a content ratio of the second monomer unit in the polymer A is 20.0 mol % to 95.0 mol %, and the SP value of the first monomer unit, the SP value of the second monomer unit, and the SP value of a silicone segment contained in the specific structure satisfy a specific relationship.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 30, 2021
    Inventors: Kazuki Murata, Koh Ishigami, Shin Kitamura, Nobuyoshi Sugahara, Takaho Shibata, Toru Takahashi, Kazunari Ooyama, Yuu Nishimura, Daisuke Tsujimoto, Ryo Nakajima, Hitoshi Sano
  • Publication number: 20210286282
    Abstract: The present invention provides a white toner which has high charge uniformity and enables stable print-out of high-quality images irrespective of its usage environment. The above object can be solved by a white toner including a white toner particle containing a binder resin, a white pigment and an inorganic fine particle, in which the white pigment has a work function of 5.80 eV or more and 6.10 eV or less, the content of the white pigment is 15.0 parts by mass or more and 60.0 parts by mass or less relative to 100 parts by mass of the binder resin, and the inorganic fine particle has a work function of 6.15 eV or more.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 16, 2021
    Inventors: Takakuni Kobori, Kenta Mitsuiki, Hitoshi Sano, Wakiko Katsumata, Daisuke Yamashita, Yosuke Iwasaki, Takeshi Ohtsu, Takaho Shibata, Masaharu Miura, Koh lshigami, Yuichi Mizo
  • Publication number: 20210223710
    Abstract: A toner including a toner particle comprising a binder resin and a crystalline polyester, wherein the binder resin contains a polyester having a structure represented by the following formula (1): in formula (1), Rs each independently represent hydrogen, a methyl group, or a phenyl group; A represents a polyester segment; B represents a polyester segment or any functional group selected from the group consisting of —R1OH, —R1COOH, and —R1NH2 wherein R1 represents a single bond or a C1-4 alkylene group; and the average repeat number n is 10 to 80.
    Type: Application
    Filed: April 6, 2021
    Publication date: July 22, 2021
    Inventors: Toru Takahashi, Nobuyoshi Sugahara, Hitoshi Sano, Kazunari Ooyama, Yuu Nishimura, Kohji Takenaka, Koh Ishigami