Patents by Inventor Keiichi Kato

Keiichi Kato 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: 20220324270
    Abstract: A tire according to the present disclosure includes a sound absorber on an inner surface of the tire, and a portion or all of the sound absorber is orange.
    Type: Application
    Filed: November 25, 2019
    Publication date: October 13, 2022
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Taiga ISHIHARA, Jun WATANABE, Suguru YAMAGUCHI, Keiichi KATO, Tomonori MUKAIGAWA, Makoto GOZU, Sho MITSUDA
  • Patent number: 11428827
    Abstract: Provided are a radiation detector, a radiographic imaging apparatus, and a manufacturing method that include a TFT substrate in which a plurality of pixels that accumulate electric charges generated depending on light converted from radiation are formed in a pixel region of a first surface of a flexible base material and a terminal region of the first surface is provided with a terminal for electrically connecting a flexible cable; a conversion layer that is provided outside the terminal region on the first surface of the base material to convert the radiation into light; a first reinforcing substrate that is provided on a surface of the conversion layer opposite to a surface on a TFT substrate side and has a higher stiffness than the base material; and a second reinforcing substrate that is provided on a second surface of the base material opposite to the first surface to cover a surface larger than the first reinforcing substrate, and that are capable of suppressing that a defect occurs in the substrate and
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: August 30, 2022
    Assignee: FUJIFILM CORPORATION
    Inventors: Shinichi Ushikura, Munetaka Kato, Keiichi Akamatsu, Haruyasu Nakatsugawa
  • Publication number: 20220250421
    Abstract: A pneumatic tire of the present disclosure includes: a pair of bead cores embedded in a pair of bead portions, the pair of bead cores each including a pair of small bead cores divided in a tire width direction; and a carcass including one or more carcass plies, the carcass toroidally straddling between the pair of bead cores with end portions of the carcass each sandwiched between the pair of small bead cores and engaged with the small bead cores, in which a sound control body is disposed on an inner surface of the tire in the pair of bead portions.
    Type: Application
    Filed: November 25, 2019
    Publication date: August 11, 2022
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Taiga ISHIHARA, Jun WATANABE, Suguru YAMAGUCHI, Keiichi KATO, Tomonori MUKAIGAWA, Makoto GOZU, Sho MITSUDA
  • Publication number: 20220151223
    Abstract: A cell cryopreservation pretreatment operation plate includes a planar operation portion, a first recess for storing a treatment solution, a second recess for storing a treatment solution, a third recess for storing a treatment solution, and a fourth recess for storing discarded solutions. The planar operation portion includes, on a surface thereof, a first circular segment, second circular segment, and third circular segment for placing treatment solutions, an enlarged first circular segment enclosing the first circular segment, an enlarged second circular segment enclosing the second circular segment, and an enlarged third circular segment enclosing the third circular segment.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Applicant: Kitazato Corporation
    Inventors: Futoshi INOUE, Keiichi KATO, Satoshi UENO
  • Publication number: 20210197623
    Abstract: A tire includes a circumferential direction groove and plural protrusions. The circumferential direction groove is formed in a tread face so as to open toward an outer side in a tire radial direction. The plural protrusions are formed so as to project to a projection height of from 0.1 mm to 1.0 mm from a groove bottom face or a groove side face of the circumferential direction groove, and are spaced apart by a spacing of from 0.1 mm to 1.0 mm.
    Type: Application
    Filed: June 7, 2019
    Publication date: July 1, 2021
    Inventors: Sotaro IWABUCHI, Yusaku ISHIGURO, Hikaru INAGAKI, Keiichi KATO
  • Patent number: 10890625
    Abstract: A battery model includes a series connection of a direct current resistance model, a charge transfer resistance model derived from the Butler-Volmer equation, and a diffusion resistance model. A battery state estimating device includes a storage unit and a parameter calculating unit. The storage unit stores information on the resistance parameter related to the resistance component of the diffusion resistance model, the time constant parameter related to the time constant of the diffusion resistance model, and the charge parameter of the charge transfer resistance model, in association with temperature information of the secondary battery. The parameter calculating unit calculates each of the parameters corresponding to the detected temperature value based on a detected temperature value of the secondary battery and the information stored in the storage unit.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: January 12, 2021
    Assignee: DENSO CORPORATION
    Inventors: Toshiyuki Kawai, Keiichi Kato, Yuji Koike, Hideaki Tanaka, Shuntaro Kono
  • Patent number: 10682888
    Abstract: A block segment sections and outer rib-shaped sections are arranged in an outer shoulder land section. An end portion of one of vertical groove sections in one of L-shaped groove sections, which is at the other side in the tire circumferential direction communicates with one of the horizontal groove sections in another L-shaped groove section of the L-shaped groove sections, which is adjacent to the L-shaped groove section in the tire circumferential direction, via one of second communicating sections. In addition, positions of first communicating sections and the second communicating section in the tire width direction are different from each other.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: June 16, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keiichi Kato
  • Patent number: 10663524
    Abstract: A battery state estimating apparatus includes an updating unit. The updating unit updates a charge-transfer impedance model in a battery model of a secondary battery, which is a series connection of a DC resistance model, a charge-transfer impedance model, and an diffusion impedance model, using the amount of change in a measurement value of a current flowing through the secondary such that a first relationship between the current flowing through the secondary battery and a voltage across the charge-transfer resistance approaches a second relationship between an actual value of the current and an actual value of the voltage across the charge-transfer resistance. The first relationship between the current flowing through the secondary battery and the voltage across the charge-transfer resistance is defined based on the Butler-Volmer equation. A state estimator estimates a state of the secondary battery based on the battery model including the updated charge-transfer impedance model.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: May 26, 2020
    Assignee: DENSO CORPORATION
    Inventors: Toshiyuki Kawai, Keiichi Kato, Yuuji Koike
  • Patent number: 10654755
    Abstract: An outer peripheral coating member contains first particles containing titanium oxide, second particles containing zirconium oxide, third particles containing niobium oxide or aluminum oxide, and a dispersion medium. It is preferable for the first particles to have at least two peak values R1 in a distribution of particle sizes of the first particles. One of the peak values R1 is within a range of 1 to 50 nm, and the other peak value R1 is within a range of 100 to 500 nm.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: May 19, 2020
    Assignee: DENSO CORPORATION
    Inventors: Mitsunori Oota, Emi Hattori, Keiichi Kato
  • Patent number: 10611193
    Abstract: A pneumatic tire provided with, in a tread surface, at least two main circumferential grooves, and a first land portion defined by the two main grooves, wherein in the first land portion, the followings are disposed: a first inclined groove; inclining relative to a tire width direction, and having one end portion opening in the main groove on one side adjacent to the first land portion and the other end portion terminating within the first land portion, and a first notched portion; having one end in a tire width direction as a tip positioned at an endmost, in a tire width direction, of the other end portion of the first inclined groove and the other end in a tire width direction opening in the main groove on the other side adjacent to the first land portion.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: April 7, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keiichi Kato
  • Patent number: 10527677
    Abstract: A battery state estimation apparatus estimates a state of a secondary battery based on a battery model thereof. The battery model includes a DC resistance model, a reaction resistance model, and a diffusion resistance model. The apparatus includes a DC information storage section which stores information on the DC resistance related to temperature of the secondary battery, a reaction information storage section which stores information on the reaction resistance parameter related to the temperature, a diffusion information storage section which stores information on each of the first and second parameters related to the temperature, and a state estimation section which calculates the DC resistance, the reaction resistance parameter, and the first and second parameters from the stored information, by using the temperature as input, and estimates the state of the secondary battery based on the DC resistance, reaction resistance parameter, and first and second parameters.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: January 7, 2020
    Assignee: DENSO CORPORATION
    Inventors: Toshiyuki Kawai, Keiichi Kato, Yuuji Koike
  • Patent number: 10308074
    Abstract: A pneumatic tire includes: two external circumferential main grooves in a vehicle-installed outside half portion; two internal circumferential main grooves in a vehicle-installed inside half portion; a central land portion; an external intermediate land portion; and an internal intermediate land portion. The central land portion is a rib-shaped land portion continuous in the tire circumferential direction. The external intermediate land portion includes external resonators each composed of a first auxiliary groove, a first branch groove, and a second branch groove. The internal intermediate land portion includes internal resonators each composed of a second auxiliary groove, a third branch groove, and a fourth branch groove. The first auxiliary groove is less in groove volume than the second auxiliary groove. A total groove width of the two external circumferential main grooves is less than a total groove width of the two internal circumferential main grooves.
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: June 4, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keiichi Kato
  • Publication number: 20190064276
    Abstract: A battery model includes a series connection of a direct current resistance model, a charge transfer resistance model derived from the Butler-Volmer equation, and a diffusion resistance model. A battery state estimating device includes a storage unit and a parameter calculating unit. The storage unit stores information on the resistance parameter related to the resistance component of the diffusion resistance model, the time constant parameter related to the time constant of the diffusion resistance model, and the charge parameter of the charge transfer resistance model, in association with temperature information of the secondary battery. The parameter calculating unit calculates each of the parameters corresponding to the detected temperature value based on a detected temperature value of the secondary battery and the information stored in the storage unit.
    Type: Application
    Filed: January 20, 2017
    Publication date: February 28, 2019
    Applicant: DENSO CORPORATION
    Inventors: Toshiyuki KAWAI, Keiichi KATO, Yuji KOIKE, Hideaki TANAKA, Shuntaro KONO
  • Patent number: 10195905
    Abstract: A pneumatic tire includes, in an inner land (4) portion, a first resonator (9) made up of a first sub-groove (9a), a first branch groove (9b) opening to one of two inner circumferential main grooves (2), and a first branch groove (9c) opening to the other one of the two inner circumferential main grooves (2), and also includes, in an external land portion (5), a second resonator (11) made up of a second sub-groove (11a) and a second branch groove (11b) that is opening to one of two external circumferential main grooves (3) and a third resonator (12) made up of a third sub-groove (12a) and a third branch groove (12b) that is opening to the other one of the two external circumferential main grooves (3). The second resonator (11) and the third resonator (12) have groove widths smaller than the groove width of the first resonator (9).
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: February 5, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Keiichi Kato
  • Patent number: 10094882
    Abstract: In an apparatus, a circuit model includes a DC resistance model, and a reaction impedance model having a nonlinear relationship between a first potential difference across a reaction resistance and a current flowing through the secondary battery. The nonlinearly relationship depends on a temperature of the secondary battery. The circuit model includes a diffusion impedance model. The apparatus predicts a future remaining voltage across the secondary battery at a future timing when a predetermined duration will have elapsed since a prediction time. The apparatus calculates a future polarization voltage across the secondary battery at the future timing. The apparatus predicts a target power parameter of the secondary battery at the future timing according to the future remaining voltage, the future polarization voltage, a first potential difference across the reaction resistance, and a second potential difference across the DC resistance model.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: October 9, 2018
    Assignee: DENSO CORPORATION
    Inventors: Toshiyuki Kawai, Yuuji Koike, Keiichi Kato
  • Publication number: 20180118629
    Abstract: An outer peripheral coating member contains first particles containing titanium oxide, second particles containing zirconium oxide, third particles containing niobium oxide or aluminum oxide, and a dispersion medium. It is preferable for the first particles to have at least two peak values R1 in a distribution of particle sizes of the first particles. One of the peak values R1 is within a range of 1 to 50 nm, and the other peak value R1 is within a range of 100 to 500 nm.
    Type: Application
    Filed: April 8, 2016
    Publication date: May 3, 2018
    Inventors: Mitsunori OOTA, Emi HATTORI, Keiichi KATO
  • Publication number: 20180045788
    Abstract: A battery state estimating apparatus includes an updating unit. The updating unit updates a charge-transfer impedance model in a battery model of a secondary battery, which is a series connection of a DC resistance model, a charge-transfer impedance model, and an diffusion impedance model, using the amount of change in a measurement value of a current flowing through the secondary such that a first relationship between the current flowing through the secondary battery and a voltage across the charge-transfer resistance approaches a second relationship between an actual value of the current and an actual value of the voltage across the charge-transfer resistance. The first relationship between the current flowing through the secondary battery and the voltage across the charge-transfer resistance is defined based on the Butler-Volmer equation. A state estimator estimates a state of the secondary battery based on the battery model including the updated charge-transfer impedance model.
    Type: Application
    Filed: March 7, 2016
    Publication date: February 15, 2018
    Applicant: DENSO CORPORATION
    Inventors: Toshiyuki KAWAI, Keiichi KATO, Yuuji KOIKE
  • Patent number: 9827868
    Abstract: A secondary battery control unit has a calculating portion identifying a parameter of an equivalent circuit based on an estimation error that is obtained by a comparison between an actual output value of a secondary battery and an equivalent output value of the equivalent circuit. Based on a predetermined amount of an infinitesimal change in the parameter and an evaluation function that is obtained using a result of the comparison, the calculating portion numerically calculates a slope of the evaluation function and renews the parameter based on the slope. As a result, the secondary battery control unit has the calculating portion capable of identifying the parameter of the equivalent circuit while reflecting effects of deterioration of the secondary battery and capable of being integrated to a vehicle-mounted microcomputer.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: November 28, 2017
    Assignee: DENSO CORPORATION
    Inventors: Yuuji Koike, Keiichi Kato, Toshiyuki Kawai
  • Patent number: 9718439
    Abstract: When disassembling after a gas being supplied into a tube member, the gas in the tube member is discharged before the tube member and a moving member become separable. In a webbing take-up device, a cover plate cannot be removed from a frame and thereafter a cylinder and a piston inside the cylinder cannot be separated before covering of a fixing screw with a covering section of a plate being released by removing a screw from an exhaust port of the cylinder and by removing the plate from the cylinder. Thus, after a high-pressure gas being supplied into the cylinder, the high-pressure gas inside the cylinder can surely be discharged by removing the plate from the cylinder and the exhaust port is opened by the screw before the cylinder and the piston being separated.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: August 1, 2017
    Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO
    Inventors: Tomonori Nagata, Hiroaki Yamazoe, Shinichi Okubo, Keiichi Kato
  • Publication number: 20170203614
    Abstract: A pneumatic tire includes: two external circumferential main grooves in a vehicle-installed outside half portion; two internal circumferential main grooves in a vehicle-installed inside half portion; a central land portion; an external intermediate land portion; and an internal intermediate land portion. The central land portion is a rib-shaped land portion continuous in the tire circumferential direction. The external intermediate land portion includes external resonators each composed of a first auxiliary groove, a first branch groove, and a second branch groove. The internal intermediate land portion includes internal resonators each composed of a second auxiliary groove, a third branch groove, and a fourth branch groove. The first auxiliary groove is less in groove volume than the second auxiliary groove. A total groove width of the two external circumferential main grooves is less than a total groove width of the two internal circumferential main grooves.
    Type: Application
    Filed: December 25, 2014
    Publication date: July 20, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Keiichi KATO