Patents by Inventor Takuya Fujita

Takuya Fujita 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: 10734881
    Abstract: An eddy current retarder includes a brake drum, a magnet retention ring, and a switch mechanism. The brake drum is fixed to a rotating shaft. The magnet retention ring is arranged inside the drum and retains magnets at regular intervals entirely in a circumferential direction such that the magnets face the inner peripheral surface of the drum. The switch mechanism includes switch plates that switch, during braking, to a state in which magnetic circuits develop between the magnets and the drum, and switch, during non-braking, to a state in which no magnetic circuits develop. Protrusions are provided on an end face of the drum at regular intervals entirely in the circumferential direction. Electricity generating coils are provided in a non-rotating part of a vehicle at regular intervals entirely in the circumferential direction such that the electricity generating coils face the regions of the end face of the drum.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: August 4, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Kenji Imanishi, Hiroyuki Yamaguchi, Shotaro Kadokawa, Takuya Fujita, Hiroshi Nogami
  • Patent number: 10703911
    Abstract: Organic colorant represented by General Formula (1) below: where in the General Formula (1), R1 and R2 each independently represent C1-C20 alkyl group, C1-C20 alkenyl group, phenyl group, naphthyl group, or group represented by —(CH2)n—COO—R3, —(CH2)n—R4, —(CH2)n—CONH—R5, —CR6R7—COO—R8, or —(CH2)n—OCOCH3; R3 represents hydrogen atom or C1-C2 alkyl group; R4 represents hydroxy group, C1-C2 alkoxy group, C2-C5 alkenyloxy group, SO3Na group, OSO3Na group, phenyl group, phenylalkyl group, naphthyl group, or naphthylalkyl group; R5 represents C1-C20 alkyl group, C1-C20 alkenyl group, or C1-C12 hydroxyalkyl group; R6 represents hydrogen atom or methyl group; R7 represents C1-C4 alkyl group; R8 represents C1-C5 alkyl group; and n is integer of from 1 to 12.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: July 7, 2020
    Assignees: Ricoh Company, Ltd., Tokyo University of Science Foundation
    Inventors: Takuya Fujita, Yoshimasa Miyazawa, Tatsuya Tomura, Masahiro Yanagisawa, Kiyofumi Nagai, Yukishige Kondo, Juki Migii
  • Patent number: 10655029
    Abstract: An inkjet ink including: a stilbene-based compound represented by General Formula (1) below; where in the General Formula (1), R1 and R3 each independently represent, for example, an alkyl group including 1 to 20 carbon atoms, an alkenyl group including 1 to 20 carbon atoms, a phenyl group, or a naphthyl group.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: May 19, 2020
    Assignees: Ricoh Company, Ltd., Tokyo University of Science Foundation
    Inventors: Takuya Fujita, Yoshimasa Miyazawa, Hisashi Habashi, Tatsuya Tomura, Tomohiro Inoue, Yukishige Kondo, Yutaka Takahashi
  • Publication number: 20200067397
    Abstract: A retarder includes a rotor, a plurality of fins, a plurality of permanent magnets, a switching mechanism, a first cover, a second cover, and a cover-switching mechanism. The fins are provided on an outer peripheral surface of the rotor and inclined with respect to a rotation direction of the rotor. The magnets are arranged inside the rotor. The first cover faces an end face of the rotor and includes a plurality of holes. The second cover protrudes from an outer circumferential edge of the first cover toward a rotor side. The cover-switching mechanism opens the holes in the braking state and closes the holes in the non-braking state. The first cover is disposed on a side on which a leading end portion of each fin is present. The retarder achieves suppressing windage and ensuring a heat dissipation performance.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 27, 2020
    Inventors: Hiroshi NOGAMI, Kenji IMANISHI, Yasutaka NOGUCHI, Hiroyuki YAMAGUCHI, Shotaro KADOKAWA, Takuya FUJITA
  • Publication number: 20190393764
    Abstract: An eddy current retarder includes a brake drum, a magnet retention ring, and a switch mechanism. The brake drum is fixed to a rotating shaft. The magnet retention ring is arranged inside the drum and retains magnets at regular intervals entirely in a circumferential direction such that the magnets face the inner peripheral surface of the drum. The switch mechanism includes switch plates that switch, during braking, to a state in which magnetic circuits develop between the magnets and the drum, and switch, during non-braking, to a state in which no magnetic circuits develop. Protrusions are provided on an end face of the drum at regular intervals entirely in the circumferential direction. Electricity generating coils are provided in a non-rotating part of a vehicle at regular intervals entirely in the circumferential direction such that the electricity generating coils face the regions of the end face of the drum.
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Inventors: Kenji IMANISHI, Hiroyuki YAMAGUCHI, Shotaro KADOKAWA, Takuya FUJITA, Hiroshi NOGAMI
  • Patent number: 10491094
    Abstract: An eddy current retarder includes a brake drum, a magnet retention ring, and a switch mechanism. The brake drum is fixed to a rotating shaft. The magnet retention ring is arranged inside the drum and retains magnets at regular intervals entirely in a circumferential direction such that the magnets face the inner peripheral surface of the drum. The switch mechanism includes switch plates that switch, during braking, to a state in which magnetic circuits develop between the magnets and the drum, and switch, during non-braking, to a state in which no magnetic circuits develop. Protrusions are provided on an end face of the drum at regular intervals entirely in the circumferential direction. Electricity generating coils are provided in a non-rotating part of a vehicle at regular intervals entirely in the circumferential direction such that the electricity generating coils face the regions of the end face of the drum.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: November 26, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Kenji Imanishi, Hiroyuki Yamaguchi, Shotaro Kadokawa, Takuya Fujita, Hiroshi Nogami
  • Patent number: 10478914
    Abstract: For butt-welding, which includes bringing joining end surfaces of a cup member and a shaft member into abutment against each other and radiating a high energy intensity beam from a radially outer side, the shaft member has a recess on a radially inner side of the joining end surface to obtain a welded portion having a closed hollow cavity on a radially inner side after butt-welding. The joining end surface (protruding surface) of the cup member protrudes toward a radially inner side with respect to an inner diameter of the joining end surface of the shaft member. With this, a welded portion of an outer joint member of a constant velocity universal joint, which is manufactured by joining the cup member and the shaft member, can be improved in strength and quality.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: November 19, 2019
    Assignee: NTN CORPORATION
    Inventors: Naoki Nakagawa, Shintaro Suzuki, Kenichi Nakano, Takuya Fujita, Kiyohiro Suzuki, Renji Natsume, Tatsuro Sugiyama, Masazumi Kobayashi
  • Patent number: 10454358
    Abstract: An eddy current retarder includes a brake drum, a magnet retention ring, and a switch mechanism. The brake drum is fixed to a rotating shaft. The magnet retention ring is arranged inside the drum and retains magnets at regular intervals entirely in a circumferential direction such that the magnets face the inner peripheral surface of the drum. The switch mechanism includes switch plates that switch, during braking, to a state in which magnetic circuits develop between the magnets and the drum, and switch, during non-braking, to a state in which no magnetic circuits develop. Protrusions are provided on an end face of the drum at regular intervals entirely in the circumferential direction. Electricity generating coils are provided in a non-rotating part of a vehicle at regular intervals entirely in the circumferential direction such that the electricity generating coils face the regions of the end face of the drum.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: October 22, 2019
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Kenji Imanishi, Hiroyuki Yamaguchi, Shotaro Kadokawa, Takuya Fujita, Hiroshi Nogami
  • Patent number: 10430707
    Abstract: There is provided an information processing device to improve generalization performance of the neural network, the information processing device including: a control unit configured to control display related to a setting of a parameter related to physical simulation; a communication unit configured to transmit the parameter to a physical simulator and receive image information obtained in the physical simulation from the physical simulator; and a machine learning unit configured to perform machine learning on the basis of the image information. The control unit causes a display unit to display a learning result obtained by the machine learning unit and the parameter in association with each other.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: October 1, 2019
    Assignee: SONY CORPORATION
    Inventors: Akira Nakamura, Takuya Narihira, Takuya Fujita
  • Publication number: 20190283406
    Abstract: A liquid discharging device includes a carriage carrying a head configured to discharge a liquid onto a target, the liquid comprising an ink, the ink comprising water, an organic solvent, a coloring material, and a plurality of polysiloxane compounds, a driving unit configured to move the carriage and the target relatively to each other, a measuring unit configured to measure the distance between the carriage and the target, an image-capturing unit configured to capture a target image, and a setting unit configured to set a liquid discharging performance of the head based on a measurement result obtained by the measuring unit and the target image obtained by the image-capturing unit.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 19, 2019
    Inventors: Takuya FUJITA, Hiromi Sakaguchi, Yuta Nakamura, Naoto Shimura, Yoshiaki Masuda, Tetsuto Ueda, Yoshimi Nemoto, Kenichi Taguma, Naohiro Toda, Shinya Seno, Nobuyuki Satoh
  • Publication number: 20190264745
    Abstract: A spline-processing method is used for a wheel bearing. The wheel bearing includes outer and inner members. The inner member has formed on its inner periphery an interference-defined spline having a guide spline formed at an inboard-side end portion thereof. An intermediate component of the inner member includes a spline-formation inner peripheral surface having the interference-defined spline and the guide spline formed thereon, and a relief portion, which is formed on an outboard side with respect to the spline-formation inner peripheral surface, and has a diameter larger than that of the spline-formation inner peripheral surface. A punch used for the spline processing includes an integrated spline punch having an interference-defined spline forming surface to form the interference-defined spline, and a guide spline forming surface to form the guide spline. The integrated spline punch presses the spline-formation inner peripheral surface to form the interference-defined spline and the guide spline.
    Type: Application
    Filed: November 9, 2017
    Publication date: August 29, 2019
    Inventors: Kazuki HIRAMATSU, Hiroshi MATSUNAGA, Takuya FUJITA
  • Patent number: 10300706
    Abstract: An inkjet printing device includes an ink containing a silver particle and water; and an ink discharging head including multiple nozzles to discharge the ink, individual liquid chambers communicating with the multiple nozzles, a common liquid chamber to supply the ink to the individual liquid chambers, a circulating flow path communicating with the individual liquid chambers, a common circulating liquid chamber communicating with the circulating flow path, and a pressure generator to apply a pressure to the ink in the individual liquid chambers, wherein the proportion of the silver particle to the ink is from 1 to 15 percent by mass.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 28, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshimasa Miyazawa, Tatsuya Tomura, Takuya Fujita, Hisashi Habashi, Takahiro Yoshida
  • Patent number: 10293627
    Abstract: A printed matter is provided. The printed matter includes a porous printing medium and a printed layer. The printed layer contains silver and has a printed surface having an image clarity (2 mm), defined in Japanese Industrial Standards H8686-2, of 5.0 or more and a b* value in the range of from ?7.0 to +4.0.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: May 21, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Tomura, Yoshimasa Miyazawa, Takuya Fujita
  • Publication number: 20190134508
    Abstract: [Object] To implement display of a nurture target that conforms more closely to a real environment. [Solution] Provided is an information processing apparatus including: a determination unit configured to determine, on a basis of collected sensor information and a nurture model associated with a nurture target, a nurture state of the nurture target; and an output control unit configured to control an output related to the nurture target, in accordance with the nurture state of the nurture target. Also provided is an information processing method including: determining, by a processor, on a basis of collected sensor information and a nurture model associated with a nurture target, a nurture state of the nurture target; and controlling an output related to the nurture target, in accordance with the nurture state of the nurture target.
    Type: Application
    Filed: March 3, 2017
    Publication date: May 9, 2019
    Inventors: SOTA MATSUZAWA, TAKUYA FUJITA, KATSUYOSHI KANEMOTO
  • Patent number: 10280984
    Abstract: A cup member has a cylindrical portion, a bottom portion, and a short shaft portion having a solid shaft shape and including a joining end surface at an end portion thereof. A shaft member has a solid shaft shape and includes a joining end surface at one end thereof. The joining end surfaces of the cup and shaft members are brought into abutment against each other and welded from a radially outer side to form a welded portion. At this time, center segregation is prevented from interfering with the welded portion. The cup member is formed by forging including upsetting a billet having a columnar shape successively in a plurality of stages, extruding the cylindrical portion and the short shaft portion, and ironing the cylindrical portion. In the course of the upsetting, a region of the billet corresponding to a bottom side of the cup member is narrowed.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: May 7, 2019
    Assignee: NTN CORPORATION
    Inventors: Jun Numamoto, Kenichi Nakano, Takuya Fujita, Akira Sera, Hiroshi Matsunaga, Tatsuro Sugiyama, Masazumi Kobayashi
  • Publication number: 20190114558
    Abstract: The present disclosure relates to an information processing apparatus, an information processing method, and a program by which learning data can be transferred to another agent. In a case of transferring learning data to another user, the learning data is divided into learning data of a private type depending on an individual and learning data of a public type excluding it and only learning data of the public type is only transferred. In a case of transferring it to an agent of a new vehicle, it is classified into individual-dependent data, vehicle type-dependent data, and general-purpose data and only the general-purpose data is transferred. Only in a case where a vehicle type of the new vehicle is the same as the vehicle type which has been used at that time, the vehicle type-dependent data is also transferred. The present disclosure can be applied to intelligent agents.
    Type: Application
    Filed: April 7, 2017
    Publication date: April 18, 2019
    Inventors: NOBUHIRO OGAWA, KATSUYOSHI KANEMOTO, ATSUSHI NODA, TAKUYA FUJITA
  • Publication number: 20190087734
    Abstract: [Object] To provide a mechanism capable of characterizing data appropriately. [Solution] An information processing apparatus includes: an acquisition section that acquires first feature information, to which meaning is assigned, and second feature information, to which meaning is not assigned; and a generation section that generates time-series data having features indicated by the first feature information and the second feature information acquired by the acquisition section.
    Type: Application
    Filed: December 14, 2016
    Publication date: March 21, 2019
    Inventors: NAOKI IDE, TAKUYA FUJITA, AKIRA NAKAMURA, TAKUYA NARIHIRA, RYO NAKAHASHI
  • Publication number: 20190050713
    Abstract: There is provided an information processing apparatus that can perform learning of a neural network more efficiently, the information processing apparatus including: an acquisition section configured to acquire a semantic network, identification information of data, and a label; and a learning section configured to learn a classification model that classifies the data into the label, on a basis of the semantic network, the identification information, and the label that have been acquired by the acquisition section.
    Type: Application
    Filed: January 24, 2017
    Publication date: February 14, 2019
    Applicant: SONY CORPORATION
    Inventors: Takuya NARIHIRA, Takuya FUJITA, Akira NAKAMURA
  • Patent number: 10202516
    Abstract: A printed matter is provided. The printed matter comprises a print medium and a print layer on the print medium. The print medium comprises a porous layer having an average pore diameter of from 100 to 400 nm and an average thickness of from 1 to 50 ?m. The print layer comprises silver and an aliphatic compound having amino group and hydroxyl group, and has an average thickness of from 50 to 300 nm.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: February 12, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Tomura, Yoshimasa Miyazawa, Takuya Fujita
  • Publication number: 20190039606
    Abstract: The present technology relates to an information processing device that enables to perform parking according to a desired parking method, and relates to an information processing method, and a program. For respective modes corresponding to parking methods of automatic parking that automatically parks a vehicle, the information processing device calculates respective required times until the automatic parking is completed, and controls displaying of the respective required times corresponding to the modes, thereby enabling to perform desired parking according to the required time until the automatic parking is completed. The present technology can be applied to, for example, an automatic parking system that is incorporated as a part of an automatic driving system with which a vehicle capable of performing automatic driving is provided.
    Type: Application
    Filed: January 27, 2017
    Publication date: February 7, 2019
    Inventors: TAKUYA FUJITA, KENTA KAWAMOTO, SHINJI IGARASHI, ATSUSHI NODA