Patents by Inventor Takuya Yamazaki

Takuya Yamazaki 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: 10370548
    Abstract: A copolymer including a structural unit represented by General Formula (1) below, and a structural unit represented by General Formula (2) below, where, in General Formula (1), R1 is a hydrogen atom or a methyl group, L1 is an alkylene group having 2 or greater carbon atoms but 5 or less carbon atoms, and X is a hydrogen atom or a cation, where, in General Formula (2), R2 is a hydrogen atom or a methyl group and L2 is an alkylene group having 2 or greater carbon atoms but 18 or less carbon atoms.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: August 6, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Shigeyuki Harada, Akihiko Matsuyama, Yoshiki Yanagawa, Masayuki Fukuoka, Takuya Yamazaki, Kazukiyo Nagai, Yuusuke Koizuka, Tomoyuki Shimada, Akiyoshi Sabu
  • Patent number: 10345792
    Abstract: In two component mounting lines or more each including the plurality of the component mounters, a set-up changing work time, necessary for executing set-up changing work in the two component mounting lines or more based on the number of workers assigned for production in the two component mounting lines or more in each time zone, and the number of workers necessary for the set-up changing work necessary when the mounting board is changed in the two component mounting lines or more, is calculated; and a production completion time, which includes a set-up changing work time and at which the production of all the mounting boards that are the production targets is completed, is calculated; and a group is determined so that the production completion time is shortened within a predetermined time period in the two component mounting lines or more.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: July 9, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takuya Yamazaki, Atsushi Nakazono, Hiroshi Ando, Kazuyoshi Harada
  • Publication number: 20190136076
    Abstract: Ink includes water, a coloring material, and a copolymer including a first structure unit represented by the following Chemical formula 1 and a second structure unit including an anionic group. In the Chemical formula, R represents a hydrogen atom or a methyl group, X represents an alkylene group having 2-4 carbon atoms, and Y represents a substituted or non-substituted straight-chain alkylene group having 5 to 7 carbon atoms.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 9, 2019
    Inventors: Yuusuke Koizuka, Kazukiyo Nagai, Tomoyuki Shimada, Shigeyuki Harada, Akihiko Matsuyama, Yoshiki Yanagawa, Koichiro Oyama, Takuya Yamazaki, Akiyoshi Sabu
  • Patent number: 10280321
    Abstract: An ink includes a pigment, a wax, a water soluble solvent including a solvent having an SP value of from 9.0 to 11.0, and water, wherein the mass ratio of the content of the wax in the ink to the content of the solvent having an SP value of from 9.0 to 11.0 is in a range of from 1.0:2.5 to 1.0:25.0.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: May 7, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Akihiko Matsuyama, Hiroshi Gotou, Michihiko Namba, Hidetoshi Fujii, Amika Sagara, Kazukiyo Nagai, Tomoyuki Shimada, Shigeyuki Harada, Yoshiki Yanagawa, Akiyoshi Sabu, Yuusuke Koizuka, Masayuki Fukuoka, Takuya Yamazaki
  • Patent number: 10273373
    Abstract: Provided is an ink containing water, a coloring material, and a copolymer, wherein the copolymer contains a structural unit represented by any one of general formulae (1a), (1b), and (1c) below and a structural unit containing an anionic group, where R1 represents a hydrogen atom or a methyl group, a represents an integer of from 6 through 10, and b represents an integer of 0 or 1, where R2 represents a hydrogen atom or a methyl group, c represents an integer of 3 or 4, and d represents an integer of 0 or 1, where R3 represents a hydrogen atom or a methyl group and e represents an integer of from 2 through 10.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: April 30, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuusuke Koizuka, Kazukiyo Nagai, Tomoyuki Shimada, Shigeyuki Harada, Koichiro Oyama, Takuya Yamazaki, Akiyoshi Sabu, Yoshiki Yanagawa, Akihiko Matsuyama
  • Patent number: 10260487
    Abstract: Electrodeless plasma is supplied to a space between a cathode and an anode such that a resistivity in the space is reduced. The electrodeless plasma is accelerated with Lorentz force induced by a radial direction magnetic field component and an axial direction magnetic field component that are generated in the space, and current in the space.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: April 16, 2019
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Takuya Yamazaki, Hirofumi Shimizu, Satoshi Fujiwara, Akihiro Sasoh, Shigeru Yokota, Shota Harada, Teruaki Baba
  • Patent number: 10233341
    Abstract: Ink includes water, a coloring material, and a copolymer including a first structure unit represented by the following Chemical formula 1 and a second structure unit including an anionic group. In the Chemical formula, R represents a hydrogen atom or a methyl group, X represents an alkylene group having 2-4 carbon atoms, and Y represents a substituted or non-substituted straight-chain alkylene group having 5 to 7 carbon atoms.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 19, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuusuke Koizuka, Kazukiyo Nagai, Tomoyuki Shimada, Shigeyuki Harada, Akihiko Matsuyama, Yoshiki Yanagawa, Koichiro Oyama, Takuya Yamazaki, Akiyoshi Sabu
  • Publication number: 20190064784
    Abstract: A production system includes a production line for producing a product by connecting a plurality of production facilities having working units for doing work on a transported workpiece; a gap time calculator that calculates a plurality of gap times respectively corresponding to the plurality of the production facilities until a next workpiece is transported from an upstream production facility to each of the plurality of the production facilities based on a production status of each of the plurality of the production facilities; and a preparation operation determination unit that determines an automatic preparation operation capable of being executed in each of the plurality of the production facilities based on the plurality of the gap times. Each of the plurality of the production facilities executes the determined automatic preparation operation.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 28, 2019
    Inventors: ISATO IWATA, TAKUYA YAMAZAKI, NAOFUMI IKUTA, HIROKI SAGARA
  • Publication number: 20190010933
    Abstract: A plasma accelerating apparatus includes: a cathode (11) configured to supply electrons to a plasma acceleration region; a anode (12); a power supply (13) configured to apply a voltage between the cathode and the anode; a supply port (14) arranged on an outer circumference side than the cathode to supply a propellant to the plasma acceleration region; and a first magnetic field generator (15) configured to generate a first axial direction magnetic field in the upstream side region of the plasma acceleration region to suppress that the electrons supplied from the cathode head for the anode. Thus, the plasma accelerating apparatus and the plasma accelerating method having high thrust efficiency can be provided.
    Type: Application
    Filed: January 6, 2017
    Publication date: January 10, 2019
    Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., National University Corporation Nagoya University
    Inventors: Takuya YAMAZAKI, Matsutaka SASAHARA, Tomoji IWASAKI, Masaaki YASUI, Akihiro SASOH, Akira IWAKAWA, Daisuke ICHIHARA, Keisuke MIZUTANI
  • Publication number: 20180364687
    Abstract: A mounting board manufacturing system includes a component placing device; a library; an operation information counter; and a corrector. The component data includes a control parameter for executing the component placing work by the component placing device, and information regarding the component. The operation information counter counts a score of the component placing work for each component data based on operation information including a result executed by the component placing device. The corrector selects correction component data that is a target to be corrected from a plurality of the component data based on the score and corrects the control parameter of the correction component data.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 20, 2018
    Inventors: INLIN TAN, TAKUYA YAMAZAKI, TAKAAKI YOKOI, NARUMI ATSUTA, ATSUSHI NAKAZONO
  • Patent number: 10149420
    Abstract: A component mounting method is provided in a component mounting apparatus that mounts a component onto a board using a plurality of pieces of production data linked to component data. The method includes executing, when the component data is changed, a simulation of a production cycle time based on the production data, and comparing a simulation result of the production cycle time after change of the component data with a production cycle time or a simulation result of the production cycle time before change of the component data, and outputting a comparison result.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: December 4, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Isato Iwata, Hirokazu Takehara, Takuya Yamazaki, Hiroki Sagara
  • Publication number: 20180302033
    Abstract: A piezoelectric oscillation device includes a piezoelectric vibration element, a heating element that heats the piezoelectric vibration element, an electronic component that is electrically connected to the piezoelectric vibration element, a substrate on which the piezoelectric vibrator, the heating element, and the electronic component are mounted, and a base member to which the substrate is attached with a prescribed spacing therebetween via a substrate holding member. The substrate holding member includes a conductive part. The conductive part has a lower thermal conductivity than metal.
    Type: Application
    Filed: June 14, 2018
    Publication date: October 18, 2018
    Inventors: TAKUYA YAMAZAKI, Toshikatsu Ohitsu, Hiroaki Kaida
  • Patent number: 10088025
    Abstract: An automatic transmission for an electric vehicle includes: a belt type continuously variable transmission mechanism; a constantly meshed parallel shaft type gear transmission mechanism which is connected to an output portion of the belt type continuously variable transmission mechanism, and which has a plurality of shift stages; an input gear which is disposed to the input shaft to be rotated relative to the input shaft, and which is drivingly connected to one of a plurality of shift gears fixed to an output side shaft of the constantly meshed parallel shaft type gear transmission mechanism; and an engaging clutch mechanism which is disposed to the input shaft, and which selectively connects one of the input portion of the belt type continuously variable transmission mechanism and the input gear to the main electric motor.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: October 2, 2018
    Assignee: JATCO Ltd
    Inventors: Atsushi Yamada, Toshiaki Segawa, Toshiyuki Okamoto, Kazuhiko Yokoyama, Kazuo Oguri, Takuya Yamazaki
  • Publication number: 20180206372
    Abstract: A group determination method includes an external set-up work time calculation step of calculating an external set-up work time for an external set-up work by which a component supplier used in a group that is a next production target of a group under production in a component mounting line, including a plurality of the component mounters capable of attaching and detaching a component supply carriage which can arrange a plurality of the component suppliers (tape feeders), is removed from the component mounting line and arranged in the component supply carriage; and a production completion time calculation step of calculating a production completion time at which the production of all the mounting boards that are the production targets is completed in consideration of the external set-up work time.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 19, 2018
    Inventors: TAKUYA YAMAZAKI, ATSUSHI NAKAZONO, HIROSHI ANDO, KAZUYOSHI HARADA
  • Publication number: 20180203436
    Abstract: In two component mounting lines or more each including the plurality of the component mounters, a set-up changing work time, necessary for executing set-up changing work in the two component mounting lines or more based on the number of workers assigned for production in the two component mounting lines or more in each time zone, and the number of workers necessary for the set-up changing work necessary when the mounting board is changed in the two component mounting lines or more, is calculated; and a production completion time, which includes a set-up changing work time and at which the production of all the mounting boards that are the production targets is completed, is calculated; and a group is determined so that the production completion time is shortened within a predetermined time period in the two component mounting lines or more.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 19, 2018
    Inventors: TAKUYA YAMAZAKI, ATSUSHI NAKAZONO, HIROSHI ANDO, KAZUYOSHI HARADA
  • Patent number: 10011729
    Abstract: An ink is provided. The ink includes a quinacridone pigment and an organic solvent having a solubility parameter of from 9.00 to 11.80 in an amount of from 30% to 60% by mass of total mass of the ink. Both a viscosity change rate and a particle diameter change rate of the ink, before and after the ink is heated at 80° C. for 4 weeks in a sealed state, are in the range of from ?5% to 1%.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: July 3, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiki Yanagawa, Takuya Yamazaki, Takahiro Yoshida
  • Patent number: 10000656
    Abstract: An ink includes a pigment a quinacridone compound represented by Chemical formula 1, and a copolymer including the structure unit represented by Chemical formula 2 or Chemical formula 3. In Chemical formula 1, R1, R2, R3, and R4 each, independently represent hydrogen atoms, halogen atoms, or alkyl groups having 1-4 carbon atoms, R5, R6, and R7 each, independently represent alkyl groups having 1-4 carbon atoms or alkylene groups having 1-4 carbon atoms, and m represents 1 or 2, In Chemical formula 2, R8 represents a hydrogen atom or a methyl group and L1 represents an alkylene group having 2-16 carbon atoms, In Chemical formula 3, R9 represents a hydrogen atom or a methyl group, L2 represents a single bond or —(CH2)n—O— and n represents an integer of 2-16.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: June 19, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiki Yanagawa, Akihiko Matsuyama, Kazukiyo Nagai, Tomoyuki Shimada, Shigeyuki Harada, Akiyoshi Sabu, Yuusuke Koizuka, Koichiro Oyama, Takuya Yamazaki
  • Patent number: 9999170
    Abstract: Electronic component mounting method for mounting an electronic component on a plurality of board types includes: placing, on tray holding shelves, trays storing components for first and second board types, respectively; recognizing on which tray holding shelf the tray is placed by reading identification information from the trays. The method further includes: rearranging the trays in the tray feeder to a first tray arrangement adapted for the first board type, based on recognized placement position of the tray and the first tray arrangement data, before start of production of the board of the first board type; and rearranging the trays in the tray feeder to a second tray arrangement adapted for the second board type, based on the second tray arrangement data, before start of production of the board of the second board type.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: June 12, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Isato Iwata, Takuya Yamazaki, Hirokazu Takehara, Hiraki Sagara
  • Patent number: 9997502
    Abstract: There is provided a component arrangement determination method, in a component mounting apparatus including a plurality of component supply units for supplying components, for determining arrangement of the component supply units used for production of a plurality of types of component mounted boards. The method includes specifying a production frequency of each of the plurality of types of component mounted boards for a predetermined period of time, grouping the plurality of types of component mounted boards into a plurality of groups capable of being produced without changing the arrangement of the component supply units based on the production frequency, and determining arrangement, in the component mounting apparatus, of the component supply units for supplying components necessary for production of types of component mounted boards that belong to each group of the plurality of groups.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: June 12, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroki Sagara, Takuya Yamazaki, Hirokazu Takehara, Isato Iwata
  • Patent number: 9988543
    Abstract: Provided is an ink containing a copper phthalocyanine pigment, wherein an absorbance ratio (Y/X) of a local minimum absorbance Y of the ink in a wavelength range of from 665 nm through 675 nm to a local maximum absorbance X of the ink in a wavelength range of from 610 nm through 620 nm is 0.660 or greater but 0.740 or less.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: June 5, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Akihiko Matsuyama, Shigeyuki Harada, Yoshiki Yanagawa, Masayuki Fukuoka, Takuya Yamazaki, Kazukiyo Nagai, Tomoyuki Shimada, Akiyoshi Sabu, Yuusuke Koizuka