Patents by Inventor Junichi Nakagawa

Junichi Nakagawa 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: 10822531
    Abstract: A two-component curable solventless-type laminate adhesive contains a polyisocyanate component and a polyol component. The polyisocyanate component contains a derivative of a pentamethylene diisocyanate, the derivative of the pentamethylene diisocyanate contains an isocyanurate group and an allophanate group, and the content ratio of the isocyanurate group with respect to 100 moles of the total amount of the isocyanurate group and the allophanate group is 60 moles or more and 99 moles or less.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: November 3, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Junichi Nakagawa, Akihiro Imai, Kazuhiro Ando, Toshihiko Nakagawa, Hirokazu Morita, Satoshi Yamasaki
  • Publication number: 20200272775
    Abstract: An analysis apparatus derives a second factor (102) according to a physical phenomenon with which an analysis target (104) is to comply. The analysis apparatus derives, based on the second factor (102), a third factor (103) according to a physical phenomenon with which the analysis target (104) is to comply. The analysis apparatus decides, based on a result of evaluating the third factor (103), a first factor (102) corresponding to the third factor. The second factor (102) indicates a state in the analysis target when the first factor (101) is given to the analysis target (104).
    Type: Application
    Filed: March 25, 2019
    Publication date: August 27, 2020
    Applicant: NIPPON STEEL CORPORATION
    Inventor: Junichi NAKAGAWA
  • Patent number: 10717289
    Abstract: The remaining amounts of inks in tanks are obtained, and, based on the obtained results, whether direction for printing an image next is to be inverted with respect to a set direction. This can reduce a difference in ink remaining amount between the tanks corresponding to print heads.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: July 21, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Nakamura, Akitoshi Yamada, Okinori Tsuchiya, Junichi Nakagawa, Kentaro Yano
  • Patent number: 10675886
    Abstract: A printing apparatus includes a circulation pathway that circulates an ink between a pressure chamber of a printing head and the outside thereof. The number of eject of the ink to be ejected from an ejection port of the printing head to a unit printing area is set according to a concentration of the ink in the circulation pathway.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: June 9, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichi Nakagawa, Yumi Yanai, Seiji Abe
  • Patent number: 10647115
    Abstract: Quantization is performed on multi-valued data corresponding to a non-overlap recording area and one of recording heads on the basis of a dither pattern and multi-valued data corresponding to the non-overlap recording area and the other one of the recording heads, and also arrangements of thresholds for the dither patterns used between the scanning operations are varied.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: May 12, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichi Nakagawa, Yoshikazu Ishikawa, Akitoshi Yamada
  • Patent number: 10583665
    Abstract: A printing apparatus includes a circulation pathway that circulates an ink between a pressure chamber of a printing head and the outside thereof. The number of eject of the ink to be ejected from an ejection port of the printing head to a unit printing area is set according to a concentration of the ink in the circulation pathway.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: March 10, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Junichi Nakagawa, Yumi Yanai, Seiji Abe
  • Patent number: 10583477
    Abstract: A heat flux derivation unit (202) derives a value qy of a y-axis direction component of a heat flux vector. A molten metal surface level derivation unit (203) derives, as a molten metal surface level, a position where the absolute value of the value qy of the y-axis direction component of the heat flux vector whose y-axis component vector is in a direction opposite to a casting direction is maximum.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: March 10, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Junichi Nakagawa, Yuuji Hiramoto
  • Publication number: 20200070541
    Abstract: A print medium is conveyed in a first direction and a printing head prints an image on the print medium by using a printable region of the print head that extends in a second direction crossing the first direction. Storing units can feed multiple sorts of print media. Among the multiple sorts of the print media, the print medium to print a check pattern for checking a printing state of the printing head is selected as the print medium to be fed from the corresponding storing unit. The check pattern is printed on the print medium by using a portion of the printable region of the printing head corresponding to a size of the print medium fed from the storing unit.
    Type: Application
    Filed: August 26, 2019
    Publication date: March 5, 2020
    Inventors: Norihiro Kawatoko, Masashi Hayashi, Junichi Nakagawa, Seiji Abe, Kentaro Muro, Eiji Komamiya
  • Patent number: 10542183
    Abstract: An image processing apparatus performs quantization processing of first multivalued image data, second multivalued image data, and third multivalued image data using a dither pattern including a plurality of threshold pixels having threshold values respectively determined for quantization, generates first recording data by quantizing the first multivalued image data using a dither pattern having a threshold pixel arrangement satisfying a predetermined condition regarding the number of threshold pixels and a predetermined condition regarding low-frequency components corresponding to a frequency region lower than a predetermined frequency in spatial frequency characteristics corresponding to an arrangement of the threshold pixels, generates second recording data by quantizing the second multivalued image data using the dither pattern having the threshold pixel arrangement, and generates third recording data by quantizing the third multivalued image data using the dither pattern having the threshold pixel arrang
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: January 21, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Junichi Nakagawa, Akitoshi Yamada, Okinori Tsuchiya
  • Patent number: 10538107
    Abstract: From among a plurality of elements included in a printing head and arrayed in a predetermined direction, a faulty element that is unable to form dots properly on a printing medium is identified. At least one of correction processing for increasing a value of multi-valued input image data corresponding to the faulty element and correction processing for decreasing a threshold in a quantization process for the faulty element is performed. Complementary dot data is generated for the faulty element by taking the dot data generated for the identified faulty element as dot data corresponding to an element near the identified faulty element in the predetermined direction.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: January 21, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Seiji Abe, Yumi Yanai, Tetsuya Edamura, Junichi Nakagawa, Kouta Murasawa
  • Publication number: 20190375965
    Abstract: An aqueous dispersion contains a resin component and water, wherein the resin component contains composite particles (D) having the ethylene-unsaturated carboxylic acid copolymer (A) and the polymer having an acrylic acid ester unit as a polymerization unit (B), and composite particles (E) having the ethylene-unsaturated carboxylic acid copolymer (A) and the ethylene-vinyl acetate copolymer (C).
    Type: Application
    Filed: January 23, 2018
    Publication date: December 12, 2019
    Applicant: MITSUI CHEMICALS, INC.
    Inventor: Junichi NAKAGAWA
  • Publication number: 20190291460
    Abstract: From among a plurality of elements included in a printing head and arrayed in a predetermined direction, a faulty element that is unable to form dots properly on a printing medium is identified. At least one of correction processing for increasing a value of multi-valued input image data corresponding to the faulty element and correction processing for decreasing a threshold in a quantization process for the faulty element is performed. Complementary dot data is generated for the faulty element by taking the dot data generated for the identified faulty element as dot data corresponding to an element near the identified faulty element in the predetermined direction.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 26, 2019
    Inventors: Seiji Abe, Yumi Yanai, Tetsuya Edamura, Junichi Nakagawa, Kouta Murasawa
  • Publication number: 20190264759
    Abstract: A power transmission device includes an armature that is shaped into a circular ring form and is configured to be coupled with a rotor by an electromagnetic attractive force of an electromagnet at a time of energizing the electromagnet and is configured to be decoupled from the rotor at a time of deenergizing the electromagnet. The armature has an armature-side friction surface that is configured to contact a rotor-side friction surface of the rotor at the time of energizing the electromagnet. Grooves are formed at the armature-side friction surface such that each of the grooves extends in a form of slit from a radially inner side toward a radially outer side of the armature-side friction surface. A different type of material, which is different from a material of the armature-side friction surface, is placed in the grooves.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 29, 2019
    Inventors: Yugo YAMADA, Akira KISHIBUCHI, Junichi NAKAGAWA, Toshinobu TAKASAKI, Kozo TOMOKAWA, Satoshi KAWAKAMI, Yohei KUSHIDA
  • Publication number: 20190264758
    Abstract: A power transmission device includes an armature that is shaped into a circular ring form. The armature is configured to be coupled with a rotor by an electromagnetic attractive force of an electromagnet at a time of energizing the electromagnet and is configured to be decoupled from the rotor at a time of deenergizing the electromagnet. The armature has an armature-side friction surface that is configured to contact a rotor-side friction surface of the rotor at the time of energizing the electromagnet. The armature-side friction surface has a plurality of grooves, each of which extends from a radially inner end portion of the armature-side friction surface to a location that is on a radially inner side of a radially outer end portion of the armature-side friction surface.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 29, 2019
    Inventors: Yugo YAMADA, Akira KISHIBUCHI, Yohei KUSHIDA, Junichi NAKAGAWA, Satoshi KAWAKAMI, Toshinobu TAKASAKI, Kozo TOMOKAWA
  • Patent number: 10345741
    Abstract: A developing device includes a developing container, first and second stirring-conveyance members, a developer carrier, a toner concentration sensor, a scraper, and a scraper attachment unit. The second stirring-conveyance member includes a rotation shaft, a first spiral blade to convey developer in an axial direction, and a second spiral blade to overlap a region where the first spiral blade is formed, which is opposite to the first spiral blade in phase, and lower than the first spiral blade in height in a radial direction. An absent region, where the second spiral blade does not exist, is formed in one pitch of the first spiral blade, the one pitch facing the toner concentration sensor. The scraper attachment unit is formed to extend, along a straight line passing through intersection points of the first and second spiral blades and parallel to the rotation shaft, into the absent region.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: July 9, 2019
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Masashi Fujishima, Norio Kubo, Junichi Nakagawa, Asami Sasaki
  • Publication number: 20190202210
    Abstract: A printing apparatus includes a circulation pathway that circulates an ink between a pressure chamber of a printing head and the outside thereof. The number of eject of the ink to be ejected from an ejection port of the printing head to a unit printing area is set according to a concentration of the ink in the circulation pathway.
    Type: Application
    Filed: December 26, 2018
    Publication date: July 4, 2019
    Inventors: Junichi Nakagawa, Yumi Yanai, Seiji Abe
  • Publication number: 20190202209
    Abstract: A printing apparatus includes a circulation pathway that circulates an ink between a pressure chamber of a printing head and the outside thereof. The number of eject of the ink to be ejected from an ejection port of the printing head to a unit printing area is set according to a concentration of the ink in the circulation pathway.
    Type: Application
    Filed: December 26, 2018
    Publication date: July 4, 2019
    Inventors: Junichi Nakagawa, Yumi Yanai, Seiji Abe
  • Patent number: 10336097
    Abstract: A printing apparatus uses a printing unit on which a right and a left printing heads are mutually arranged in opposite orientations in a predetermined direction to execute multi-pass printing.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: July 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akitoshi Yamada, Junichi Nakagawa, Yoshikazu Ishikawa
  • Publication number: 20190193146
    Abstract: A determination apparatus of a casting state in continuous casting where there are a solidified shell, a mold flux layer, and a mold being respective thermal conductors between a molten steel and cooling water for the mold, the determination apparatus comprising an estimation unit, a calculation unit, and a determination unit. A computer program for causing a computer to determine a casting state in continuous casting where there are a solidified shell, a mold flux layer, and a mold being respective thermal conductors between a molten steel and cooling water for the mold.
    Type: Application
    Filed: March 6, 2019
    Publication date: June 27, 2019
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Satoshi KOSUGI, Kensuke OKAZAWA, Junichi NAKAGAWA
  • Patent number: 10286675
    Abstract: A recording apparatus acquires residual amounts of respective tanks and determines a recording area of one recording head and a recording area of another recording head from among the two recording heads based on the acquisition result, so as to reduce a difference between residual amounts of ink within the tanks corresponding to the respective recording heads.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: May 14, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Okinori Tsuchiya, Akitoshi Yamada, Junichi Nakagawa