Patents by Inventor Yusuke Kuramochi

Yusuke Kuramochi 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: 20230256750
    Abstract: An image forming apparatus includes: an inkjet head; an ink reservoir that stores ink circulating between the inkjet head and the ink reservoir; a pressure generating unit that communicates with the inkjet head and generates a first pressure such that an internal pressure of the ink reservoir becomes the first pressure; and a first fluid resistor that gives resistance to a fluid flowing through a fluid communication path between the ink reservoir and the pressure generating unit such that the internal pressure of the ink reservoir becomes a second pressure.
    Type: Application
    Filed: June 24, 2020
    Publication date: August 17, 2023
    Applicant: Konica Minolta, Inc.
    Inventor: Yusuke Kuramochi
  • Publication number: 20230040662
    Abstract: An inkjet recording device including: inkjet head having a pressure chamber; a first pressure source to adjust ink energy per unit volume to generate “energy per unit volume” P1(Pa) relative to static ink at an atmospheric pressure at a nozzle opening height; a second pressure source to adjust ink energy per unit volume to generate “energy per unit volume” P2(Pa) relative to static ink; and a hardware processor. The first pressure source, pressure chamber, and second pressure source are connected in this order by a flow path. Assuming that a pressure loss occurring from the first pressure source to the nozzle due to circulation flow rate is ?Pa, a proportionality constant of a differential pressure (P1?P2) and ?Pa is “a”, and an appropriate pressure in vicinity of the nozzle opening is Pn, the hardware processor controls pressure to establish P2={Pn?(1?a)P1}/a.
    Type: Application
    Filed: January 10, 2020
    Publication date: February 9, 2023
    Inventor: Yusuke KURAMOCHI
  • Patent number: 10836164
    Abstract: The present invention may provide an ink jet head and an ink jet recording apparatus capable of satisfactorily removing remaining air bubbles from a pressure chamber. The present invention may include: a common ink chamber that stores ink; at least one pressure chamber that communicates with the common ink chamber and causes a volume fluctuation using pressure generation means; a nozzle that communicates with the pressure chamber; a nozzle-part discharge path that communicates with the pressure chamber near the nozzle inside the pressure chamber and discharges ink out of the pressure chamber; and at least one discharge path that communicates with the pressure chamber at a position apart from the nozzle inside the pressure chamber and discharges ink out of the pressure chamber.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: November 17, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventor: Yusuke Kuramochi
  • Publication number: 20190224972
    Abstract: The present invention may provide an ink jet head and an ink jet recording apparatus capable of satisfactorily removing remaining air bubbles from a pressure chamber. The present invention may include: a common ink chamber that stores ink; at least one pressure chamber that communicates with the common ink chamber and causes a volume fluctuation using pressure generation means; a nozzle that communicates with the pressure chamber; a nozzle-part discharge path that communicates with the pressure chamber near the nozzle inside the pressure chamber and discharges ink out of the pressure chamber; and at least one discharge path that communicates with the pressure chamber at a position apart from the nozzle inside the pressure chamber and discharges ink out of the pressure chamber.
    Type: Application
    Filed: August 10, 2017
    Publication date: July 25, 2019
    Inventor: Yusuke KURAMOCHI
  • Publication number: 20130001472
    Abstract: To provide a novel material exhibiting excellent light-emitting characteristics using a heavy metal element having relatively abundant reserve.
    Type: Application
    Filed: March 4, 2011
    Publication date: January 3, 2013
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, YAMAGUCHI UNIVERSITY, HIROSHIMA UNIVERSITY
    Inventors: Joji Ohshita, Toshihiro Murafuji, Yusuke Kuramochi, Takashi Kaikoh, Hideyuki Higashimura
  • Publication number: 20120211706
    Abstract: The present invention provides a metal complex that has excellent durability, and a device and the like having excellent durability that uses such a metal complex. Specifically, the present invention provides a metal complex comprising (a) a polydentate ligand having denticity of five or more that includes a heteroaromatic ring which contains two or more atoms selected from the group consisting of a nitrogen atom, an oxygen atom, and a sulfur atom, and (b) an ion of a metal selected from the group consisting of cerium, praseodymium, ytterbium, and lutetium; a composition comprising the metal complex and a charge transport material; an organic thin film obtained by using the metal complex or composition; and a device obtained by using the metal complex, composition, or organic thin film.
    Type: Application
    Filed: October 25, 2010
    Publication date: August 23, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yusuke Kuramochi, Takeshi Ishiyama, Hideyuki Higashimura
  • Publication number: 20120049167
    Abstract: An organic electroluminescent device in which an organic layer containing a metal coordination compound represented by the following formula (1) is sandwiched between the pair of electrodes composed of an anode and a cathode, MLaXb??(1) wherein M is an ion of a metal of Group 11 of the Periodic Table, L is a ligand represented by the formula (2) shown below, X is an anion, and a and b are defined in the specification, wherein A is a divalent group formed by removing two hydrogen atoms from the formula (3) or (4) shown below, and D1, k1, m1, A, D1, Q1, and Q2 are defined in the specification, wherein X1, X2, X3, X4, X5, R1, R5, R6, and R9 are defined in the specification.
    Type: Application
    Filed: January 21, 2010
    Publication date: March 1, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yusuke Kuramochi, Norifumi Kobayashi, Hideyuki Higashimura
  • Publication number: 20120041203
    Abstract: A metal complex containing a nitrogen-containing aromatic ring ligand which has a dendritic molecular chain, and a copper(I) ion or a silver(I) ion. For example, the metal complex which is represented by compositional formula (8): (wherein M+ is a copper(I) ion or a silver(I) ion, L is a ligand, and X is a counter ion; p is a positive number, and q and r are each independently numerical numbers of 0 or more; R represents a hydrogen atom, a halogen atom, a cyano group, a nitro group, a carboxyl group, an amino group, an acylamino group, a silyl group, a hydroxyl group, an acyl group, a hydrocarbyl group, a hydrocarbyloxy group, a hydrocarbylthio group, or a heterocyclic group, wherein the amino group, the silyl group, the hydrocarbyl group, the hydrocarbyloxy group and the hydrocarbylthio group optionally have a substituent) has excellent heat resistance.
    Type: Application
    Filed: April 19, 2010
    Publication date: February 16, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yusuke Kuramochi, Norifumi Kobayashi, Hideyuki Higashimura