Patents by Inventor Hiroshi Kita

Hiroshi Kita 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: 20230394263
    Abstract: An image forming apparatus includes a first image forming unit, a second image forming unit, and a control unit configured to control the first image forming unit and the second image forming unit. The control unit performs control so as to allow execution of a first mode and a second mode in which a color gamut of an image to be formed on a printing material is expanded from the first mode, as an image forming mode for forming an image on a printing material. The second mode includes a second single-color mode in which image formation is performed by only the first image forming unit and a second multicolor mode in which image formation is performed by the first image forming unit and the second image forming unit.
    Type: Application
    Filed: May 26, 2023
    Publication date: December 7, 2023
    Inventor: HIROSHI KITA
  • Patent number: 11789392
    Abstract: An image forming apparatus, configured to operate in first and second modes of which color gamut is different from each other, includes an exposure unit configured to expose a photosensitive drum; a developing roller configured to form a toner image; a detection unit configured to detect density of the toner image transferred to an intermediate transfer member; and a controller configured to adjust the density based on a value of input image data. A dithering process for the controller's controlling of the exposure unit is different depending on whether the operation is in the first mode or the second mode, and in at least a part of the input image data, the density of the toner image formed by the dithering process in the first mode is higher than the density of the toner image formed by the dithering process in the second mode.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: October 17, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiki Kudo, Akihiko Uchiyama, Hiroshi Kita, Masaki Shimomura, Takahiro Nakase
  • Patent number: 11708383
    Abstract: An organic borane complex contains, as a component, triarylborane having an enhanced bonding between a boron atom and a carbon atom on an aryl group. The organic borane complex contains, as a component, triarylborane having a structure represented by the following general formula (1), wherein X1 and X2 each independently represent an oxygen atom or a sulfur atom; X3 and X4 each independently represent a hydrogen atom or a substituent, or X3 and X4 are linked together to be a single atom; R1 to R3 each independently represent a hydrogen atom or a substituent; and p, q and r each independently represent an integer of 1 to 3. Also disclosed are a composition containing organic borane, and an organic electroluminescent element.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 25, 2023
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takatugu Suzuki, Hiroshi Kita, Yuichi Kitamoto, Shuichi Oi
  • Patent number: 11674893
    Abstract: A housing includes a first opening and a second opening, and encloses a light-emitting element and a first light receiving unit. The first opening is provided in a first light guide path, and is arranged so that light output from the light-emitting element travels toward a target surface. The second opening is provided in a second light guide path arranged between the target surface and the first light receiving unit. The first opening is an exit opening of a through-hole provided penetrating through the housing, and a shape of the through-hole is a shape in which diffracted light of the +1st order and higher orders and diffracted light of the ?1st order and higher orders produced at the target surface to be irradiated are not incident on the first light receiving unit.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: June 13, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazushi Ino, Takuya Mukaibara, Junya Azami, Kazutaka Yaguchi, Hiroshi Kita
  • Patent number: 11578132
    Abstract: It is an object of the present invention to provide a method for efficiently producing a B cell population comprising B cells that recognize a specific antigen. According to the present invention, provided is a method for producing a B cell population, comprising: a step (c) of culturing a cell population comprising B cells together with a specific antigen in the absence of IL-21, in the absence of IL-4, and in the presence of a cytokine other than IL-21 and IL-4, while giving stimulation mediated by CD40 and a BAFF receptor to the cells; and a step (d) of culturing the cell population comprising B cells, while giving stimulation mediated by has to the cells, so as to obtain a B cell population comprising B cells that recognize the specific antigen.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: February 14, 2023
    Assignees: KANEKA CORPORATION, TOKYO UNIVERSITY OF SCIENCE FOUNDATION
    Inventors: Tatsuya Moutai, Tomoyuki Nakaishi, Hiroshi Kita, Mitsuaki Kitano, Daisuke Kitamura
  • Patent number: 11579081
    Abstract: A housing includes a first opening and a second opening, and encloses a light-emitting element, a first light receiving unit, and a second light receiving unit. The first opening is provided in a first light guide path arranged between the light-emitting element and a first irradiated region of the target surface, and is arranged so that light output from the light-emitting element travels toward the first irradiated region. The second opening is provided in a second light guide path arranged between the first irradiated region and the first light receiving unit, and is arranged so that diffused reflection light from the toner image passes through when the toner image passes the first irradiated region.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: February 14, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazushi Ino, Takuya Mukaibara, Kazutaka Yaguchi, Junya Azami, Hiroshi Kita
  • Patent number: 11554572
    Abstract: The present invention addresses the problem of providing a desiccant that can be used for passivation of an electronic device such as an organic electroluminescence element against moisture permeation, as well as an organic thin film including the desiccant, an organic layered film in which the organic thin film is layered, and an electronic device that is provided therewith. This desiccant is characterized by including a compound that emits a hydrophobic substance by absorbing water. This organic thin film is characterized by including this desiccant.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: January 17, 2023
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yukihiro Makishima, Hideo Taka, Hiroshi Kita, Yoshiyuki Suzuri
  • Publication number: 20230008958
    Abstract: An image forming apparatus includes: an image forming unit configured to form an image on an intermediate transfer member; a transfer member configured to output a transfer voltage, in order to cause a transfer current to flow so as to transfer the image to a sheet; a first measurement unit configured to measure a density of the image; and a control unit configured to: control the image forming unit to form a test image on the intermediate transfer member based on test image data; control the first measurement unit to acquire a measured density of the test image; correct the measured density based on an evaluation value of an electric resistance of a path through which the transfer current flows; and generate data for density correction, based on the test image data and a corrected measured density.
    Type: Application
    Filed: June 21, 2022
    Publication date: January 12, 2023
    Inventor: Hiroshi Kita
  • Patent number: 11476427
    Abstract: There are provided a ?-conjugated boron compound, an electronic device containing an organic functional layer including the ?-conjugated boron compound, a method for producing a triarylborane, and a method for producing a triarylborane intermediate. In the ?-conjugated boron compound, a boron atom is bonded to three aromatic groups via three boron-carbon bonds. Bond distances of the three boron-carbon bonds are all 1.48 ? or less.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 18, 2022
    Assignees: KONICA MINOLTA, INC., TOHOKU UNIVERSITY
    Inventors: Hiroshi Kita, Takayuki Iijima, Shuichi Oi, Yuichi Kitamoto
  • Patent number: 11437590
    Abstract: An organic electroluminescence element material contains a ?-conjugated boron compound having a structure represented by Formula (1), wherein, X1 and X2 each independently represent O, S, or N—Y1, Y1 represents an alkyl group, an aromatic hydrocarbon ring group, or an aromatic heterocyclic group, when there are a plurality of Y1s the plurality of Y1s may be the same or different, R1 to R9 each independently represent a hydrogen atom or a substituent.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: September 6, 2022
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yukihiro Makishima, Takayuki Iijima, Hiroshi Kita
  • Publication number: 20220187730
    Abstract: An image forming apparatus has a normal image formation mode and a wide color gamut image formation mode in which an amount of a developer per unit area of a developer image of at least a color that differs from a prescribed color among a plurality of colors is increased as compared to the normal image formation mode. Image data is generated such that an image portion formed in the prescribed color in an image formed on a recording material is formed solely by a developer image of the prescribed color in the normal image formation mode, but formed by superimposing a developer image of a color that differs from the prescribed color on a developer image of the prescribed color or formed solely by a developer image of a different color in place of a developer image of the prescribed color in the wide color gamut image formation mode.
    Type: Application
    Filed: March 1, 2022
    Publication date: June 16, 2022
    Inventors: Hiroshi Kita, Kazuhiro Funatani
  • Publication number: 20220190257
    Abstract: A functional film includes an aromatic compound which has a condensed or noncondensed 6-membered aromatic hydrocarbon ring or aromatic heterocyclic ring having four or more condensed aromatic ring groups containing not less than 14? electrons, wherein three or more of the condensed aromatic ring groups containing not less than 14? electrons are adjacent as substituents. For the aromatic compound, a film density value calculated by molecular dynamics calculation of NPT ensemble at 300 K is defined as an initial film density of the functional film comprising only the aromatic compound. For the aromatic compound, when a film density value calculated by molecular dynamics calculation at 370 K is defined as a film density value after storage of the functional film at the temperature, the difference between the initial film density and the film density value after storage is 1% or less with respect to the initial film density.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 16, 2022
    Inventors: Mayuka KABASAWA, Yuko IKEDA, Miyuki OKANIWA, Hiroshi KITA
  • Publication number: 20220162259
    Abstract: A peptide complex including: a peptide; and a cell-membrane-permeability-imparting group introduced into the peptide, wherein the cell-membrane-permeability-imparting group includes a dendritic structure including four or more branches, and at least four branches of the four or more branches include basic functional groups at ends thereof.
    Type: Application
    Filed: February 14, 2020
    Publication date: May 26, 2022
    Applicant: KANEKA CORPORATION
    Inventors: Keishi TAKATSU, Toshihiro SHIKAKURA, Yuka MATSUDA, Tatsuya MOUTAI, Hirofumi MAEDA, Hiroshi KITA, Mitsuaki KITANO
  • Patent number: 11329234
    Abstract: An object of the present invention is to provide an organic electroluminescent element containing an organic layer interposed between an anode and a cathode, the organic layer containing at least one light emitting layer, wherein the at least one light emitting layer contains a ?-conjugated compound having an electron donor portion and an electron acceptor portion in the molecule; the ?-conjugated compound has a direction vector from an atom having a HOMO orbital in the electron donor portion to an electron cloud of the HOMO orbital, and a direction vector from an atom having a LUMO orbital in the electron acceptor portion to an electron cloud of the LUMO orbital, and the two direction vectors form an angle ? in the range of 90 to 180 degrees; and the ?-conjugated compound has a plurality of the electron donor portions or a plurality of the electron acceptor portions.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: May 10, 2022
    Assignee: Merck Patent GmbH
    Inventors: Yasuo Miyata, Taketo Namikawa, Hiroshi Kita
  • Publication number: 20220128939
    Abstract: An image forming apparatus, configured to operate in first and second modes of which color gamut is different from each other, includes an exposure unit configured to expose a photosensitive drum; a developing roller configured to form a toner image; a detection unit configured to detect density of the toner image transferred to an intermediate transfer member; and a controller configured to adjust the density based on a value of input image data. A dithering process for the controller's controlling of the exposure unit is different depending on whether the operation is in the first mode or the second mode, and in at least a part of the input image data, the density of the toner image formed by the dithering process in the first mode is higher than the density of the toner image formed by the dithering process in the second mode.
    Type: Application
    Filed: January 5, 2022
    Publication date: April 28, 2022
    Inventors: Yoshiki Kudo, Akihiko Uchiyama, Hiroshi Kita, Masaki Shimomura, Takahiro Nakase
  • Patent number: 11287762
    Abstract: Downtime relating to formation and detection of a detection image is reduced. An image forming apparatus includes a controller configured to calculate a first conversion unit to convert a gradation of input image data so that density output for the input image data becomes a first density output characteristic based on a first detection result of the detection image detected by a density sensor in a first mode. The controller generates a second conversion unit to convert the gradation of the input image data so that the density output for the input image data becomes a second density output characteristic in a second mode based on the detection result in the first mode and correction information, and further updates the correction information based on a second detection result of the detection image detected by the density sensor in the second mode and the first detection result.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: March 29, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Shimomura, Yoshiki Kudo, Hiroshi Kita, Kazuhiro Funatani, Keita Sato
  • Patent number: 11287759
    Abstract: An image forming apparatus has a normal image formation mode and a wide color gamut image formation mode in which an amount of a developer per unit area of a developer image of at least a color that differs from a prescribed color among a plurality of colors is increased as compared to the normal image formation mode. Image data is generated such that an image portion formed in the prescribed color in an image formed on a recording material is formed solely by a developer image of the prescribed color in the normal image formation mode, but formed by superimposing a developer image of a color that differs from the prescribed color on a developer image of the prescribed color or formed solely by a developer image of a different color in place of a developer image of the prescribed color in the wide color gamut image formation mode.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: March 29, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Kita, Kazuhiro Funatani
  • Patent number: 11276837
    Abstract: The present invention addresses the problem of providing a manufacturing method for an electronic device that is provided with an organic thin film functioning as a sealing film against moisture permeation in an electronic device such as an organic electroluminescence element. This manufacturing method for an electronic device is a manufacturing method for an electronic device that has at least an organic functional layer, an elution prevention film, and a sealing film in this order, said manufacturing method being characterized by having: a step in which, after coating is performed with a silicone resin, the result is irradiated with vacuum ultraviolet rays to form the elution prevention film; and a step in which, after the elution prevention film is coated with a liquid mixture of a metal alkoxide and a fluoroalcohol, the result is irradiated with vacuum ultraviolet rays to form the ultraviolet rays to form the sealing film.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: March 15, 2022
    Assignee: KONICA MINOLTA, INC.
    Inventors: Yukihiro Makishima, Hideo Taka, Hiroshi Kita, Yoshiyuki Suzuri, Lina Yoshida
  • Publication number: 20220048953
    Abstract: Novel cell-penetrating peptides are provided, which are excellent in cell membrane permeability. The cell-penetrating peptide or salt thereof according to the present invention is characterized in comprising the sequence represented by formula (I) or the formula (II) as follows: X-(A-B-C)l-(D)m-(Arg)n (Formula I) or X-(Arg)n-(D)m-(A-B-C)l (Formula II), wherein X is a physiologically active peptide, A, B and C are aliphatic amino acids, D is an arbitrary amino acid, l is an integer of 1 or more and 4 or less, m is an integer of 0 or more and 5 or less, when l is 1, n is an integer of 8 or more, when l is 2, n is an integer of 6 or more, when l is 3, n is an integer of 4 or more, when l is 4, n is an integer of 4 or more.
    Type: Application
    Filed: August 9, 2019
    Publication date: February 17, 2022
    Applicant: KANEKA CORPORATION
    Inventors: Yuka MATSUDA, Hiroshi KITA, Keishi TAKATSU, Tatsuya MOUTAI, Mitsuaki KITANO
  • Patent number: 11248226
    Abstract: A method for producing a ribosome display complex includes obtaining a ribosome complex including an unmodified polypeptide chain, an mRNA molecule and a ribosome by initiating translation of the mRNA molecule in a cell-free peptide synthesis system including the ribosome, and modifying the unmodified polypeptide chain by reacting a side chain reactive functional group in the unmodified polypeptide chain with a modifying reagent to produce a ribosome display complex including a modified polypeptide chain, the mRNA molecule and the ribosome. The unmodified polypeptide chain includes at least one reactive amino acid residue selected from the group consisting of a cysteine residue, a lysine residue, a histidine residue and a tryptophan residue. The at least one reactive amino acid residue includes the side chain reactive functional group, and the mRNA molecule includes a base sequence encoding an amino acid sequence of the polypeptide chain.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: February 15, 2022
    Assignee: KANEKA CORPORATION
    Inventors: Hiroshi Kita, Toshihiro Shikakura, Hirofumi Maeda, Keishi Takatsu