Patents by Inventor Kenji Yokoyama

Kenji Yokoyama 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: 20230088916
    Abstract: A nonlinear optical material is represented by the following formula (1).
    Type: Application
    Filed: November 1, 2022
    Publication date: March 23, 2023
    Inventors: NAOYA SAKATA, KENJI TAGASHIRA, MASAKO YOKOYAMA, KOTA ANDO
  • Patent number: 11594353
    Abstract: A sintered magnet contains Sm—Fe—N-based crystal grains and has high coercivity; and a magnetic powder is capable of forming a sintered magnet without lowering the coercivity even if heat is generated in association with the sintering. A sintered magnet comprises a crystal phase composed of a plurality of Sm—Fe—N-based crystal grains and a nonmagnetic metal phase present between the Sm—Fe—N crystal grains adjacent to each other, wherein a ratio of Fe peak intensity IFe to SmFeN peak intensity ISmFeN measured by an X-ray diffraction method is 0.2 or less. A magnetic powder comprises Sm—Fe—N-based crystal particles and a nonmagnetic metal layer covering surfaces of the Sm—Fe—N crystal particles.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: February 28, 2023
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, Murata Manufacturing Co., Ltd.
    Inventors: Kenta Takagi, Wataru Yamaguchi, Takaaki Yokoyama, Kenji Sakaguchi, Kazuhiro Yoshii, Yuji Yokoyama
  • Publication number: 20230028064
    Abstract: A light-absorbing material includes a compound represented by the formula (1) below.
    Type: Application
    Filed: September 1, 2022
    Publication date: January 26, 2023
    Inventors: MASAKO YOKOYAMA, NAOYA SAKATA, KENJI TAGASHIRA, KOTA ANDO
  • Publication number: 20230015882
    Abstract: An image forming apparatus includes a communication interface, a processor, and a memory. The communication interface communicates with an external service including an authorization code flow. The memory stores a front-end application having a UI and a back-end application having no UI and registered in the external service, which are programs executed by the processor. The processor causes the external service to execute the authorization code flow based on the information of the back-end application in response to a request from the front-end application, receives an authorization code from the external service, causes the front-end application to redirect using a URL previously associated with the back-end application on the external service, and acquires an access token from the external service by the back-end application using the authorization code.
    Type: Application
    Filed: September 22, 2022
    Publication date: January 19, 2023
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Kenji YOKOYAMA
  • Patent number: 11548486
    Abstract: Upon detecting a current balise, an onboard system of a train calculates a speed curve based on measured traveling speed at a timing of the detection and sets a minimum required time period for traveling to each of a next balise and a balise subsequent to the next balise. Upon detecting the next balise, the onboard system compares a traveling time period from the timing of detecting the current balise to the timing of detecting the next balise with the set minimum required time period. The onboard system activates an emergency brake when the elapsed time period is shorter than the minimum required time period to stop the train.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: January 10, 2023
    Assignee: KYOSAN ELECTRIC MFG. CO., LTD.
    Inventors: Kenji Mizuno, Shuji Nambu, Toshifumi Nishi, Tamotsu Yokoyama
  • Publication number: 20220401638
    Abstract: A percutaneous catheter for blood removal includes a catheter tube extending in an axial direction with a plurality of distal side holes provided on a distal end part of the catheter tube and communicating a lumen of the catheter with an outside of the catheter tube. The plurality of distal side holes is spirally arranged in the axial direction of the catheter tube, and at least one distal side hole at the proximal end side of the spirally arranged side holes is formed to have a diameter smaller than a diameter of a distal side hole at the distal end side of the spirally arranged side holes.
    Type: Application
    Filed: August 23, 2022
    Publication date: December 22, 2022
    Inventors: Kenji Yokoyama, Takehisa Mori
  • Publication number: 20220378999
    Abstract: A catheter for percutaneous cardiopulmonary support has a lumen through which blood flows to a living body. The catheter comprises a catheter tube including a tubular reinforcing body including a plurality of wires braided into a mesh shape and a resin layer provided so as to cover the reinforcing body. A plurality of side holes are formed at a distal end of the catheter tube to communicate the lumen with the outside of the catheter tube. The side holes allow the blood flowing through the lumen to flow out in a direction intersecting an axial direction of the catheter tube when the catheter tube is indwelled. The plurality of side holes preferably may be spirally arranged in a circumferential direction of the tube.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 1, 2022
    Inventor: Kenji Yokoyama
  • Patent number: 11516209
    Abstract: An image forming apparatus includes a communication interface, a processor, and a memory. The communication interface communicates with an external service including an authorization code flow. The memory stores a front-end application having a UI and a back-end application having no UI and registered in the external service, which are programs executed by the processor. The processor causes the external service to execute the authorization code flow based on the information of the back-end application in response to a request from the front-end application, receives an authorization code from the external service, causes the front-end application to redirect using a URL previously associated with the back-end application on the external service, and acquires an access token from the external service by the back-end application using the authorization code.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: November 29, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Kenji Yokoyama
  • Publication number: 20220296799
    Abstract: A percutaneous catheter includes an expansion portion, a shaft portion, and an intermediate portion. The expansion portion includes a first reinforcing body including wires braided so as to intersect with each other. The shaft portion includes a second reinforcing body including the wires braided so as to intersect with each other. The intermediate portion includes a third reinforcing body including the wires braided so as to intersect with each other. The third reinforcing body is configured to have a braiding angle as an inner angle in an axial direction among angles formed by the intersecting wires which is smaller than those of the first reinforcing body and the second reinforcing body.
    Type: Application
    Filed: June 7, 2022
    Publication date: September 22, 2022
    Inventor: Kenji Yokoyama
  • Publication number: 20220246362
    Abstract: A solar cell includes a first electrode, a second electrode, a photoelectric conversion layer interposed between the first and second electrodes, and a hole transport layer interposed between the first electrode and the photoelectric conversion layer. At least one electrode selected from the group consisting of the first and second electrodes is transparent to light. The photoelectric conversion layer includes a perovskite compound constituted by a monovalent cation, a divalent cation, and a halogen anion. The monovalent cation includes at least one selected from the group consisting of a formamidinium cation and a methylammonium cation. The divalent cation includes a Sn cation. The halogen anion includes an iodide ion. The hole transport layer includes 4,4?,4?-tris[9,9-dimethyl-2-fluorenyl(4-methoxy-phenyl)amino]triphenylamine.
    Type: Application
    Filed: April 22, 2022
    Publication date: August 4, 2022
    Inventors: SHOHEI KUSUMOTO, KENJI KAWANO, TOMOYASU YOKOYAMA
  • Publication number: 20220179525
    Abstract: Usability improvement is achievable with respect to use of screen divisional display of windows of plural applications. Provided is an information processing apparatus including a control unit that displays divisional display information on a display screen as information associated with screen divisional display of windows of plural applications on the display screen, on the basis of a trigger operation, and displays the windows of the plural selected applications on the basis of a following operation for the displayed divisional display information while dividing display of the windows into at least a first region and a second region of the display screen. The following operation includes an operation that selects the applications for which the screen divisional display is to be executed.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 9, 2022
    Inventors: MASAHIKO NAITO, AKITAKA KIMURA, TAKASHI HEMMI, YUUMI OZAWA, KENJI YOKOYAMA, HIROAKI ADACHI, KEISHI TSUCHIYA
  • Patent number: 11318281
    Abstract: A catheter for an extracorporeal blood circulator disperses a flow of blood flowing out from a blood feeding hole to reduce the impact of blood collision on a living organ. The catheter 60 includes a blood feeding lumen 61 extending in an axial direction and a blood feeding hole 63 communicating with a distal end of the blood feeding lumen, and a side portion 63a of the blood feeding hole on the proximal side facing the blood feeding lumen is cut out to a bottom portion 63b of the blood feeding hole.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 3, 2022
    Assignee: Terumo Kabushiki Kaisha
    Inventor: Kenji Yokoyama
  • Patent number: 11260159
    Abstract: A percutaneous catheter provides an adjustable diameter in order to reduce pressure loss, maintain a required flow, and avoid increasing a load to the patient. A catheter tube is formed of braided wires in an intersecting manner and extends in an axial direction. A distal tip is affixed to a distal side of the catheter tube and is configured to engaged a distal end of a dilator. The catheter tube includes a non-coated portion on a proximal side of the distal tip and a coated portion embedded in a resin material. An inner diameter of the non-coated portion is larger than an outer diameter of the dilator. When the dilator is fully inserted through the percutaneous catheter, the non-coated portion expands in the axial direction, reducing its in inner diameter so that an inner surface of the non-coated portion comes into tight contact with an outer surface of the dilator.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: March 1, 2022
    Assignee: Terumo Kabushiki Kaisha
    Inventor: Kenji Yokoyama
  • Publication number: 20210306318
    Abstract: An image forming apparatus includes a communication interface, a processor, and a memory. The communication interface communicates with an external service including an authorization code flow. The memory stores a front-end application having a UI and a back-end application having no UI and registered in the external service, which are programs executed by the processor. The processor causes the external service to execute the authorization code flow based on the information of the back-end application in response to a request from the front-end application, receives an authorization code from the external service, causes the front-end application to redirect using a URL previously associated with the back-end application on the external service, and acquires an access token from the external service by the back-end application using the authorization code.
    Type: Application
    Filed: August 17, 2020
    Publication date: September 30, 2021
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Kenji YOKOYAMA
  • Publication number: 20210290904
    Abstract: A catheter assembly includes a catheter including an expandable and contractible tube provided with a lumen and a contact portion provided in a distal end portion of the tube. A stylet can be inserted in the lumen to make the tube expand in the longitudinal direction by coming into contact with the contact portion. A straight connector is provided on a proximal end side of the catheter which can be coupled to the stylet. The connector includes a male screw portion that is engageable with the stylet. The stylet includes a stylet hub disposed on the proximal end side of the catheter and a coupling member that couples the style hub and the straight connector to each other and is engageable with the male screw portion by rotating independently of the stylet hub.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 23, 2021
    Inventors: Kenji Yokoyama, Masakazu Miyata, Kozo Hisamatsu
  • Patent number: 10924671
    Abstract: An imaging control apparatus includes an instruction providing unit configured to be capable of providing an instruction for continuous image capturing in response to an operation on a first operation member, a touch detector configured to be capable of detecting a touch operation on a second operation member, and a control unit configured to perform control for recording images at an interval that varies, between continuous image capturing in a first image capturing period in which the second operation member is not touched, and continuous image capturing in a second image capturing period in which the second operation member is touched, during continuous image capturing that begins in response to an operation on the first operation member.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: February 16, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shotaro Yanai, Kenji Yokoyama
  • Patent number: 10894143
    Abstract: A percutaneous catheter is disclosed through which blood passes. The percutaneous catheter having a catheter tube including a first tube and a second tube, the second tube being in fluid communication with the first tube, the first tube having an inner diameter greater than an inner diameter of the second tube, and wherein the first tube is more flexible than the second tube.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: January 19, 2021
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Kenji Yokoyama
  • Patent number: 10764502
    Abstract: An imaging apparatus includes: a finder; a grip portion on a side of a first direction relative to the finder; a touch operation member provided on a rear surface of the imaging apparatus on a side of the first direction relative to the finder, on a side of a second direction relative to the grip portion, the second direction being opposite to the first direction, and on a side of a third direction relative to a center of the imaging apparatus, the third direction being perpendicular to the first direction and being oriented from the center toward the finder; and a control unit configured to control the imaging apparatus so as to execute a first function in accordance with a slide operation in the first direction and to execute a second function in accordance with a slide operation in the second direction.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: September 1, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Koji Yoshida, Jun Kamiya, Haruhisa Ueda, Takahiro Akimoto, Kimihiro Masuyama, Takuma Iwagami, Hirokazu Izuoka, Takuro Miyajima, Daiyu Ueno, Ryu Wakui, Eriko Sato, Takeshi Kikkawa, Shotaro Yanai, Kenji Yokoyama
  • Patent number: 10695661
    Abstract: A game control device comprising at least one processor configured to: receive direction input by determining which region, among a plurality of regions set so as to respectively correspond to a plurality of directions, a touch position detected by a touch panel is included in; determine whether or not the touch position has changed from being in one region to being in another region among the plurality of regions; and cause the touch panel to vibrate if the touch position has changed from being in the one region to being in the another region.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: June 30, 2020
    Assignee: KONAMI DIGITAL ENTERTAINMENT CO., LTD.
    Inventors: Tokifune Otani, Taku Endo, Kenji Yokoyama
  • Publication number: 20200069909
    Abstract: A catheter for an extracorporeal blood circulator disperses a flow of blood flowing out from a blood feeding hole to reduce the impact of blood collision on a living organ. The catheter 60 includes a blood feeding lumen 61 extending in an axial direction and a blood feeding hole 63 communicating with a distal end of the blood feeding lumen, and a side portion 63a of the blood feeding hole on the proximal side facing the blood feeding lumen is cut out to a bottom portion 63b of the blood feeding hole.
    Type: Application
    Filed: October 30, 2019
    Publication date: March 5, 2020
    Inventor: Kenji Yokoyama