Patents by Inventor Kenji Fukasawa

Kenji Fukasawa 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: 11674588
    Abstract: A differential case includes an outer shell wall portion configured to accommodate a pinion gear therein, and a first groove is formed in an inner surface of the outer shell wall portion on a back surface side of the pinion gear. In addition, a convex portion is formed on the inner surface of the outer shell wall portion on the back surface side of the pinion gear, and the first groove is formed in the convex portion. Further, a diameter of the convex portion is equal to or larger than a diameter of a back surface of the pinion gear.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: June 13, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Kenji Fukasawa, Fumio Ohshima
  • Publication number: 20220349464
    Abstract: A differential case includes an outer shell wall portion configured to accommodate a pinion gear therein, and a first groove is formed in an inner surface of the outer shell wall portion on a back surface side of the pinion gear. In addition, a convex portion is formed on the inner surface of the outer shell wall portion on the back surface side of the pinion gear, and the first groove is formed in the convex portion. Further, a diameter of the convex portion is equal to or larger than a diameter of a back surface of the pinion gear.
    Type: Application
    Filed: July 5, 2019
    Publication date: November 3, 2022
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Kenji FUKASAWA, Fumio OHSHIMA
  • Patent number: 11391354
    Abstract: A differential gear accommodated in a differential case, includes: an axial cylinder having a cylindrical shape fitted onto a shaft; an annular wall having an annular shape protruding from an outer circumferential surface of the axial cylinder; a gear protruding from the annular wall on one side with respect to an axial direction of the shaft; a reinforcing rib protruding from an outer circumferential surface of the annular wall; and a first recess formed by boring the annular wall and opening the other side with respect to the axial direction of the shaft.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: July 19, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Kenji Fukasawa, Kenji Kato
  • Patent number: 11084371
    Abstract: A motor drive device includes: a trailing arm that extends in a vehicle front-rear direction and includes a vehicle body-side attachment portion and wheel-side support portion, the vehicle body-side attachment portion formed on a forward portion side of the trailing arm and coupled to a vehicle body via a rubber bush, the wheel-side support portion formed on a rear side of the trailing arm and supporting a rear wheel; and a motor that is supported by the trailing arm and drives the rear wheel. The motor and the rubber bush are disposed in such a way that motor and the rubber bush are seen as being substantially aligned in a vehicle up-down direction when viewed in a vehicle width direction.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: August 10, 2021
    Assignees: SHOWA CORPORATION, HONDA MOTOR CO., LTD., F-TECH INC.
    Inventors: Kenji Fukasawa, Kenji Kato, Hiroyuki Takahashi, Yutaka Hozumi, Sumitaka Ito, Junichi Midorikawa, Masayuki Sasaki
  • Publication number: 20210180672
    Abstract: A differential gear accommodated in a differential case, includes: an axial cylinder having a cylindrical shape fitted onto a shaft; an annular wall having an annular shape protruding from an outer circumferential surface of the axial cylinder; a gear protruding from the annular wall on one side with respect to an axial direction of the shaft; a reinforcing rib protruding from an outer circumferential surface of the annular wall; and a first recess formed by boring the annular wall and opening the other side with respect to the axial direction of the shaft.
    Type: Application
    Filed: February 24, 2021
    Publication date: June 17, 2021
    Inventors: Kenji Fukasawa, Kenji Kato
  • Patent number: 10958810
    Abstract: A device link profile adjustment method of a computer carrying out a process of adjusting a device link table in a device link profile expressing a correspondence relationship between a first coordinate value of a first device-dependent color space and a second coordinate value of a second device-dependent color space, the method including: accepting an adjustment target at an adjustment point, using a coordinate in a profile connection space as a reference; and adjusting the device link table based on the adjustment target and a color conversion table including a device-independent coordinate value of the profile connection space of an original profile used to create the device link table.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: March 23, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Kenji Fukasawa, Mitsuhiro Yamashita
  • Patent number: 10893170
    Abstract: A profile adjustment method is a method of causing a computer to adjust a profile to be used to convert first coordinate values of a first color space into second coordinate values of a second color space. The profile adjustment method includes: accepting one of two or more kinds of profiles as an adjustment target profile among an input profile defining a correspondent relation between the first coordinate values and third coordinate values of a profile connection space, an output profile defining a correspondent relation between the third coordinate values and the second coordinate values, and a link profile defining a correspondent relation between the first coordinate values and the second coordinate values; accepting an adjustment target at coordinates at which an adjustment target color is expressed; and adjusting the adjustment target profile based on the accepted adjustment target.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: January 12, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Kenji Fukasawa, Mitsuhiro Yamashita
  • Patent number: 10861412
    Abstract: A color conversion table adjustment method for adjusting a color conversion table representing a correspondence relationship between coordinate values of an input color space and an output color space for a plurality of grid points by a computer, by using the plurality of reference grid points being referenced when output coordinate values are interpolated, adjustment points receiving step capable of acceptance of a plurality of adjustment points in the interpolation range that dividing the input color space, acquiring set adjustment amounts representing amounts of adjustment for the accepted adjustment points, determining, by using the set adjustment amounts for each of the plurality of adjustment points, grid point adjustment amounts representing amounts of adjustment for the plurality of reference grid points in a case where the plurality of adjustment points are accepted within the interpolation range, and adjusting the color conversion table, based on the grid point adjustment amounts.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: December 8, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Kenji Fukasawa
  • Patent number: 10715700
    Abstract: A profile adjustment method for causing a computer to execute a process of adjusting a to-be-adjusted profile by using a color conversion module performing a color conversion process of converting coordinate values in a color space with reference to a profile, the profile adjustment method including: setting a color conversion module included in one or more of the color conversion module, as a target module that is a color conversion module to be used; causing the target module to execute the color conversion process of converting input coordinate values in an input color space into output coordinate values in an output color space; and executing a process of using a conversion result by the target module to adjust the to-be-adjusted profile.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: July 14, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Kenji Fukasawa, Katsuyuki Tanaka
  • Patent number: 10542191
    Abstract: A profile adjustment method is a method of adjusting a profile defining a correspondent relation between input coordinate values of an input color space and output coordinate values of an output color space. The profile adjustment method includes: accepting setting of a first adjustment point of first coordinates and a second adjustment point of second coordinates; setting a third adjustment point of third coordinates based on the first and second coordinates; generating third adjustment data indicating degree of adjustment at the third adjustment point based on first adjustment data indicating degree of adjustment at the first adjustment point and second adjustment data indicating degree of adjustment at the second adjustment point; and adjusting the profile based on the first adjustment data, the second adjustment data, and the third adjustment data.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: January 21, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Kenji Fukasawa
  • Publication number: 20200009959
    Abstract: A motor drive device includes: a trailing arm that extends in a vehicle front-rear direction and includes a vehicle body-side attachment portion and wheel-side support portion, the vehicle body-side attachment portion formed on a forward portion side of the trailing arm and coupled to a vehicle body via a rubber bush, the wheel-side support portion formed on a rear side of the trailing arm and supporting a rear wheel; and a motor that is supported by the trailing arm and drives the rear wheel. The motor and the rubber bush are disposed in such a way that motor and the rubber bush are seen as being substantially aligned in a vehicle up-down direction when viewed in a vehicle width direction.
    Type: Application
    Filed: December 28, 2017
    Publication date: January 9, 2020
    Inventors: Kenji FUKASAWA, Kenji KATO, Hiroyuki TAKAHASHI, Yutaka HOZUMI, Sumitaka ITO, Junichi MIDORIKAWA, Masayuki SASAKI
  • Patent number: 10496349
    Abstract: A profile adjustment system adjusts a profile to be used for converting a coordinate value in a color space, based on an adjustment target at an adjustment point indicating a color to be adjusted. The profile adjustment system includes a coordinate receiving unit configured to display on a display unit an input field for coordinates of the adjustment point, and to receive an input of the coordinates of the adjustment point, and a color display processing unit configured to display on the display unit a color corresponding to the coordinates, the input of which has been received, in association with displaying of the coordinates.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: December 3, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Makoto Fujino, Katsuyuki Tanaka, Takahiro Kamada, Masaki Kimura, Kenji Fukasawa, Kenji Matsuzaka
  • Patent number: 10455122
    Abstract: Device-independent coordinate values at an adjustment point are converted into second coordinate values in accordance with a B2A table of an output profile, and the second coordinate values are converted into adjustment target PCS values, which are the device-independent coordinate values, in accordance with an A2B table of the output profile. When values obtained by adding relative values of an adjustment target using PCS coordinates as a reference, are assumed as target PCS values, in an optimization step, an optimization process is carried out to obtain an optimal solution of adjustment color values. The optimization process includes an element for bringing provisional PCS values, obtained by converting, in accordance with the A2B table, provisional color values obtained by adding adjustment color values to the adjustment target color values, closer to the target PCS values.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: October 22, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Mitsuhiro Yamashita, Kenji Fukasawa
  • Patent number: 10447897
    Abstract: A profile adjustment method includes: accepting first input profile as a first component, accepting at least one of a second input profile and a spot color as a second component combined with the output profile, accepting a first target of adjustment values when color conversion is executed according to the first component and the output profile, accepting a second target of adjustment values when color conversion is executed according to the second component and the output profile, and adjusting the output profile based on the first and second targets. A first output profile may be accepted as the first component combined with the input profile and a second output profile may be accepted as the second component combined with the input profile.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: October 15, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Kenji Fukasawa, Mitsuhiro Yamashita
  • Patent number: 10447894
    Abstract: A profile adjustment method of adjusting a correspondent relation between coordinate values of an input color space and coordinate values of an output color space is a method including: storing history information indicating adjustment content of a first table defining the correspondent relation in a first profile at a private tag of the first profile; reading the history information from the private tag of the first profile; and using the read history information for at least one of readjustment of the first table and adjustment of a second table defining the correspondent relation in a second profile.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: October 15, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Mitsuhiro Yamashita, Kenji Fukasawa
  • Patent number: 10356281
    Abstract: In an output profile representing a correspondence relationship between device independent coordinate values and second coordinate values in a second device dependent color space, a color conversion table used to convert the device independent coordinate values into the second coordinate values is defined as a first conversion table, and the device independent coordinate values at the adjustment point are defined as to-be-adjusted PCS values. In optimization, an optimization process including an element making provisional color values closer to an adjustment target is executed, the provisional color value being acquired by a conversion, in accordance with the first conversion table, of provisional PCS values resulting from a change in the to-be-adjusted PCS values, thus acquiring an optimal solution for the device independent coordinate values corresponding to the adjustment target.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: July 16, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Mitsuhiro Yamashita, Kenji Fukasawa
  • Publication number: 20190189081
    Abstract: A color conversion table adjustment method for adjusting a color conversion table representing a correspondence relationship between coordinate values of an input color space and an output color space for a plurality of grid points by a computer, by using the plurality of reference grid points being referenced when output coordinate values are interpolated, adjustment points receiving step capable of acceptance of a plurality of adjustment points in the interpolation range that dividing the input color space, acquiring set adjustment amounts representing amounts of adjustment for the accepted adjustment points, determining, by using the set adjustment amounts for each of the plurality of adjustment points, grid point adjustment amounts representing amounts of adjustment for the plurality of reference grid points in a case where the plurality of adjustment points are accepted within the interpolation range, and adjusting the color conversion table, based on the grid point adjustment amounts.
    Type: Application
    Filed: December 17, 2018
    Publication date: June 20, 2019
    Inventor: Kenji Fukasawa
  • Publication number: 20190174024
    Abstract: A profile adjustment method for causing a computer to execute a process of adjusting a to-be-adjusted profile by using a color conversion module performing a color conversion process of converting coordinate values in a color space with reference to a profile, the profile adjustment method including: setting a color conversion module included in one or more of the color conversion module, as a target module that is a color conversion module to be used; causing the target module to execute the color conversion process of converting input coordinate values in an input color space into output coordinate values in an output color space; and executing a process of using a conversion result by the target module to adjust the to-be-adjusted profile.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 6, 2019
    Inventors: Kenji FUKASAWA, Katsuyuki TANAKA
  • Publication number: 20190132488
    Abstract: In an output profile representing a correspondence relationship between device independent coordinate values and second coordinate values in a second device dependent color space, a color conversion table used to convert the device independent coordinate values into the second coordinate values is defined as a first conversion table, and the device independent coordinate values at the adjustment point are defined as to-be-adjusted PCS values. In optimization, an optimization process including an element making provisional color values closer to an adjustment target is executed, the provisional color value being acquired by a conversion, in accordance with the first conversion table, of provisional PCS values resulting from a change in the to-be-adjusted PCS values, thus acquiring an optimal solution for the device independent coordinate values corresponding to the adjustment target.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 2, 2019
    Inventors: Mitsuhiro YAMASHITA, Kenji FUKASAWA
  • Publication number: 20190122395
    Abstract: A color chart for color selection includes a plurality of color patches including first to third color patches arranged satisfying at least one of the following conditions (a) and (b). (a) An absolute value of a lightness difference between the first color patch and the second color patch in a first scale that is perceptually more uniform than lightness in the CIE L*a*b* color system and an absolute value of a lightness difference between the second color patch and the third color patch in the first scale are identical. (b) An absolute value of a chroma difference between the first color patch and the second color patch in a second scale that is perceptually more uniform than chroma in the CIE L*a*b* color system and an absolute value of a chroma difference between the second color patch and the third color patch in the second scale are identical.
    Type: Application
    Filed: February 13, 2017
    Publication date: April 25, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kenji FUKASAWA