Patents by Inventor Makoto Otsubo

Makoto Otsubo 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: 11459916
    Abstract: A drive-side rotor is rotated synchronously with a crankshaft. A driven-side rotor is rotated integrally with a camshaft. An internal gear section is formed at the driven-side rotor. An Oldham coupling includes: a driven Oldham flange that is formed at the drive-side rotor; a drive Oldham flange that is formed at the planetary rotor; and an Oldham intermediate that is configured to synchronize rotation of the driven Oldham flange and rotation of the drive Oldham flange while permitting eccentricity between the driven Oldham flange and the drive Oldham flange. There is satisfied a relationship of ?2<?1 where: ?1 is a maximum tilt amount of the planetary rotor relative to the driven Oldham flange; and ?2 is a maximum tilt amount of the planetary rotor in a clearance formed at the Oldham coupling.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: October 4, 2022
    Assignee: DENSO CORPORATION
    Inventors: Makoto Otsubo, Kenichi Tomomatsu, Shuhei Yamamoto, Hiroki Takahashi, Soichi Kinouchi
  • Patent number: 11441453
    Abstract: An Oldham coupling includes: a driven Oldham flange that is formed at a drive-side rotor; a drive Oldham flange that is formed at a planetary rotor; and an Oldham intermediate that is configured to synchronize rotation of the driven Oldham flange and rotation of the drive Oldham flange. A thrust section is formed at a rotor plate portion which is a portion other than the Oldham coupling. The thrust section is configured to limit tilting of the planetary rotor relative to the driven Oldham flange when the thrust section contacts the planetary rotor in an axial direction. There is satisfied a relationship of ?2>?1 where: ?1 is a maximum tilt amount of the planetary rotor relative to the driven Oldham flange; and ?2 is a maximum tilt amount of the planetary rotor in a clearance formed at the Oldham coupling.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: September 13, 2022
    Assignee: DENSO CORPORATION
    Inventors: Makoto Otsubo, Kenichi Tomomatsu, Shuhei Yamamoto, Hiroki Takahashi, Soichi Kinouchi
  • Patent number: 11402654
    Abstract: A method for manufacturing a stereoscopic image forming device includes a process of molding, from a first transparent resin, molding base materials 22 each including inclined surfaces 17 and vertical surfaces 18 on one side of a transparent plate member 16, a process of manufacturing a pair of intermediate base materials 28 by forming mirror surfaces on the vertical surfaces 18 of the respective molding base materials 22, and a process of manufacturing first and second optical control panels 13 and 14 integrated together by making the pair of intermediate base materials 28 face each other so that their vertical surfaces 18 are orthogonal to each other in a plan view, and joining together the intermediate base materials by filling the grooves 19 with a second transparent resin with a lower melting point than and a refractive index equal or approximate to the first transparent resin.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: August 2, 2022
    Assignee: ASUKANET COMPANY, LTD.
    Inventor: Makoto Otsubo
  • Patent number: 11339689
    Abstract: A bearing portion of a planetary rotatable body for providing bearing support in a thrust direction is defined as a planetary thrust bearing portion. A driving-side rotatable body or a driven-side rotatable body, which is configured to contact the planetary thrust bearing portion in the thrust direction, is defined as a specific rotatable body. A bearing portion of the specific rotatable body for providing bearing support in the thrust direction is defined as a specific thrust bearing portion. In a parallel state where the specific thrust bearing portion and the planetary thrust bearing portion are parallel to each other, the specific thrust bearing portion and the planetary thrust bearing portion contact with each other only on one of an eccentric side and a counter-eccentric side of the planetary rotatable body while the counter-eccentric side is opposite to the eccentric side.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: May 24, 2022
    Assignee: DENSO CORPORATION
    Inventors: Makoto Otsubo, Hiroki Takahashi, Kenichi Tomomatsu, Shuhei Yamamoto
  • Publication number: 20220056864
    Abstract: A fuel injection device includes: an injector, an electronic control device, a communication circuit, and a power supply circuit. A memory is provided in the injector for storing fuel injection control data set for each injector. The electronic control device controls a fuel injection of the injector based on the control data. The communication circuit is installed for each injector, and enables the electronic control device to access the memory via wireless communication. The power supply circuit is installed for each injector, has a power source that supplies electric power to the communication circuit, and receives electric power to charge the power source from a drive line that connects the electronic control device and a drive unit of the injector.
    Type: Application
    Filed: August 17, 2021
    Publication date: February 24, 2022
    Inventors: Fumiaki ARIKAWA, Shuhei YAMAMOTO, Makoto OTSUBO, Takanobu AOCHI, Yasuyuki HASEO, Shingo KITANI, Hajime KATAOKA, Satoshi HORITA
  • Publication number: 20220011901
    Abstract: A display sheet 10 according to the present invention is to be used while being placed on a display 11, and includes: infrared-light emitting elements 15 that emit infrared light from on the display 11 to a space; infrared-light receiving elements 16 that receive infrared light proceeding to the display 11 from the space; and transmitting portions 17 that passes light emitted from the display 11 to the space. The infrared-light emitting elements 15, the infrared-light receiving elements 16, and the transmitting portions 17 are formed into a sheet in a state of being arranged side by side or arranged to be scattered. Merely by placing the display sheet 10 on the display 11 and teaming them with an optical image-forming means, an aerial-image-forming type input device can be obtained with no need of separately preparing a dedicated display or infrared-light emitter. Thus, it is excellent in versatility.
    Type: Application
    Filed: December 11, 2019
    Publication date: January 13, 2022
    Applicant: Asukanet Company, Ltd.
    Inventor: Makoto Otsubo
  • Publication number: 20210404351
    Abstract: An Oldham coupling includes: a driven Oldham flange that is formed at a drive-side rotor; a drive Oldham flange that is formed at a planetary rotor; and an Oldham intermediate that is configured to synchronize rotation of the driven Oldham flange and rotation of the drive Oldham flange. A thrust section is formed at a rotor plate portion which is a portion other than the Oldham coupling. The thrust section is configured to limit tilting of the planetary rotor relative to the driven Oldham flange when the thrust section contacts the planetary rotor in an axial direction. There is satisfied a relationship of ?2>?1 where: ?1 is a maximum tilt amount of the planetary rotor relative to the driven Oldham flange; and ?2 is a maximum tilt amount of the planetary rotor in a clearance formed at the Oldham coupling.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Makoto Otsubo, Kenichi Tomomatsu, Shuhei Yamamoto, Hiroki Takahashi, Soichi Kinouchi
  • Publication number: 20210404352
    Abstract: A drive-side rotor is rotated synchronously with a crankshaft. A driven-side rotor is rotated integrally with a camshaft. An internal gear section is formed at the driven-side rotor. An Oldham coupling includes: a driven Oldham flange that is formed at the drive-side rotor; a drive Oldham flange that is formed at the planetary rotor; and an Oldham intermediate that is configured to synchronize rotation of the driven Oldham flange and rotation of the drive Oldham flange while permitting eccentricity between the driven Oldham flange and the drive Oldham flange. There is satisfied a relationship of ?2<?1 where: ?1 is a maximum tilt amount of the planetary rotor relative to the driven Oldham flange; and ?2 is a maximum tilt amount of the planetary rotor in a clearance formed at the Oldham coupling.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Makoto OTSUBO, Kenichi TOMOMATSU, Shuhei YAMAMOTO, Hiroki TAKAHASHI, Soichi KINOUCHI
  • Publication number: 20210285344
    Abstract: A bearing portion of a planetary rotatable body for providing bearing support in a thrust direction is defined as a planetary thrust bearing portion. A driving-side rotatable body or a driven-side rotatable body, which is configured to contact the planetary thrust bearing portion in the thrust direction, is defined as a specific rotatable body. A bearing portion of the specific rotatable body for providing bearing support in the thrust direction is defined as a specific thrust bearing portion. In a parallel state where the specific thrust bearing portion and the planetary thrust bearing portion are parallel to each other, the specific thrust bearing portion and the planetary thrust bearing portion contact with each other only on one of an eccentric side and a counter-eccentric side of the planetary rotatable body while the counter-eccentric side is opposite to the eccentric side.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 16, 2021
    Inventors: Makoto OTSUBO, Hiroki TAKAHASHI, Kenichi TOMOMATSU, Shuhei YAMAMOTO
  • Publication number: 20210255477
    Abstract: For manufacturing a stereoscopic image formation device 10, two molded preforms 21 made from a transparent first synthetic resin each having triangular-cross-sectional grooves 16 and triangular-cross-sectional ridges 17 alternately spaced in parallel, are manufactured by injection molding, and first and second light-control panels 11 and 11a each manufactured from one of the molded preforms 21 by forming perpendicular light-reflective surfaces 12 on a perpendicular surfaces 14 of the groove 16, are overlaid with each other with a transparent second synthetic resin being in between, and integrated. In the injection molding, a mold set 40 including thereinside a space 39 formed correspondingly to the shape of the molded preform 21 is used, a molten first synthetic resin 46 is provided into the space 39 of the mold set 40 heated to a temperature at which the first synthetic resin 46 is flow-able, and the mold set 40 is rapidly cooled.
    Type: Application
    Filed: November 9, 2018
    Publication date: August 19, 2021
    Applicant: Asukanet Company, Ltd.
    Inventor: Makoto Otsubo
  • Patent number: 11085337
    Abstract: A valve timing adjustment device includes: a first rotatable body that is rotated about a rotational axis synchronously with one of a drive shaft and a driven shaft of an engine; and a second rotatable body that is rotated about the rotational axis synchronously with the other one of the drive shaft and the driven shaft. The first rotatable body includes: a fastening portion, a slide portion and a bearing portion. The fastening portion is fastened to the one of the drive shaft and the driven shaft. The bearing portion includes an outer peripheral surface that is opposed to an inner peripheral surface of the second rotatable body, and the bearing portion rotatably supports the second rotatable body. The fastening portion projects on one axial side of the slide portion and the bearing portion in an axial direction toward the one of the drive shaft and the driven shaft.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: August 10, 2021
    Assignee: DENSO CORPORATION
    Inventors: Soichi Kinouchi, Kenji Tada, Makoto Otsubo
  • Publication number: 20210180476
    Abstract: A check valve is made of a resilient body wound in a ring form and is located in an annular flow passage. A displacement limiter includes: a limiter main body that is located on an outer side of the check valve and is configured to limit displacement of the check valve in a diameter increasing direction of the check valve; and a limiter flow passage that communicates between one side and the other side of the limiter main body in an axial direction to enable hydraulic oil to flow between the one side and the other side of the limiter main body through the limiter flow passage.
    Type: Application
    Filed: February 4, 2021
    Publication date: June 17, 2021
    Inventors: Takuya HAMADA, Makoto OTSUBO, Tetsuro MITSUTANI, Kinya TAKAHASHI
  • Publication number: 20210003856
    Abstract: A stereoscopic image display device includes a display 11 divided into sections 13 in each of which displayed are small images 12a to 12d each having a plurality of minute images 14, a shutter panel 16 disposed in front of the display 11 and including first mechanical shutters 17, which are arranged side by side in units of the minute image 14 and time-divisionally divide each section 13 per each of the small images 12a to 12d by switching on and off in units of the minute image 14, and an image forming panel 23 including image forming means 24 arranged side by side for forming an image from light rays from each of the small images 12a to 12d passing through the first mechanical shutters 17 when the first mechanical shutters 17 are on.
    Type: Application
    Filed: December 10, 2019
    Publication date: January 7, 2021
    Applicant: Asukanet Company, Ltd.
    Inventor: Makoto Otsubo
  • Patent number: 10858964
    Abstract: A single-row planetary bearing includes a single row of spherical rolling elements between an outer ring and an inner ring. A planetary gear is supported by a thrust bearing portion and is radially supported by the outer ring. The planetary gear performs a planetary motion while engaging with a driving rotor and a driven rotor at an eccentric side to adjust a rotational phase between the driving rotor and the driven rotor. The thrust bearing portion supports the planetary gear that is tilting with respect to the revolution centerline. The planetary gear has a recessed portion opened toward the thrust bearing portion. When the rotational phase is adjusted to a specific phase, the recessed portion is positioned at an anti-eccentric side opposite to the eccentric side with respect to a rotation centerline of the planetary gear.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: December 8, 2020
    Assignee: DENSO CORPORATION
    Inventors: Makoto Otsubo, Hiroki Takahashi
  • Publication number: 20200248593
    Abstract: A valve timing adjustment device includes: a first rotatable body that is rotated about a rotational axis synchronously with one of a drive shaft and a driven shaft of an engine; and a second rotatable body that is rotated about the rotational axis synchronously with the other one of the drive shaft and the driven shaft. The first rotatable body includes: a fastening portion, a slide portion and a bearing portion. The fastening portion is fastened to the one of the drive shaft and the driven shaft. The bearing portion includes an outer peripheral surface that is opposed to an inner peripheral surface of the second rotatable body, and the bearing portion rotatably supports the second rotatable body. The fastening portion projects on one axial side of the slide portion and the bearing portion in an axial direction toward the one of the drive shaft and the driven shaft.
    Type: Application
    Filed: January 29, 2020
    Publication date: August 6, 2020
    Inventors: Soichi KINOUCHI, Kenji TADA, Makoto OTSUBO
  • Patent number: 10690820
    Abstract: A retroreflector 10 is provided, which includes light reflecting grooves 11a arranged in parallel and partition walls 15 that are arranged in parallel at predetermined intervals and that orthogonally intersect with the light reflecting grooves 11a on an upper side 12 of a flat plate block 11, in which the light reflecting groove 11a is provided with first and second light reflecting surfaces 13 and 14 that orthogonally intersect with each other, and the partition wall 15 is provided with a draft that upwardly becomes smaller in width, and the partition wall 15 has a perpendicular light-reflecting surface 19 orthogonally intersecting with the first and second light reflecting surfaces 13 and 14 on its one side.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: June 23, 2020
    Assignee: ASUKANET COMPANY, LTD.
    Inventor: Makoto Otsubo
  • Publication number: 20200158926
    Abstract: A method for manufacturing a stereoscopic image forming device includes a process of molding, from a first transparent resin, molding base materials 22 each including inclined surfaces 17 and vertical surfaces 18 on one side of a transparent plate member 16, a process of manufacturing a pair of intermediate base materials 28 by forming mirror surfaces on the vertical surfaces 18 of the respective molding base materials 22, and a process of manufacturing first and second optical control panels 13 and 14 integrated together by making the pair of intermediate base materials 28 face each other so that their vertical surfaces 18 are orthogonal to each other in a plan view, and joining together the intermediate base materials by filling the grooves 19 with a second transparent resin with a lower melting point than and a refractive index equal or approximate to the first transparent resin.
    Type: Application
    Filed: September 15, 2017
    Publication date: May 21, 2020
    Applicant: Asukanet Company, Ltd.
    Inventor: Makoto Otsubo
  • Publication number: 20200141284
    Abstract: A single-row planetary bearing includes a single row of spherical rolling elements between an outer ring and an inner ring. A planetary gear is supported by a thrust bearing portion and is radially supported by the outer ring. The planetary gear performs a planetary motion while engaging with a driving rotor and a driven rotor at an eccentric side to adjust a rotational phase between the driving rotor and the driven rotor. The thrust bearing portion supports the planetary gear that is tilting with respect to the revolution centerline. The planetary gear has a recessed portion opened toward the thrust bearing portion. When the rotational phase is adjusted to a specific phase, the recessed portion is positioned at an anti-eccentric side opposite to the eccentric side with respect to a rotation centerline of the planetary gear.
    Type: Application
    Filed: January 3, 2020
    Publication date: May 7, 2020
    Inventors: Makoto OTSUBO, Hiroki TAKAHASHI
  • Publication number: 20200124870
    Abstract: A stereoscopic image forming device in a ring-shape or a shape partly using a ring-shape when viewed from above and a manufacturing method of the same, in which a plurality of first vertical light reflective members 12 are provided in one side of a transparent flat plate material 16 and a plurality of second vertical light reflective members 14 are provided in the other side of the transparent flat plate material 16. The first vertical light reflective members 12 are arranged radially around a reference point X, whereas the second vertical light reflective members 14 are arranged concentrically around a reference point Y overlapping the reference point X when viewed from above. The first vertical light reflective members 12 and the second vertical light reflective members 14 orthogonally intersect each other when viewed from above.
    Type: Application
    Filed: May 23, 2018
    Publication date: April 23, 2020
    Applicant: Asukanet Company, Ltd.
    Inventor: Makoto Otsubo
  • Patent number: 10558056
    Abstract: A stereoscopic image display device (10) includes: a display (12) displaying small images (11) side by side, each of which containing three-dimensional display data, to convert the data into rays and output from the small images (11); first mechanical shutters (14) disposed, corresponding to positions of the small images (11), in front of the display (12), extracting the rays in a time-division manner as partial rays each output from a plurality of partial regions (13) provided in each of the small images (11) and transmitting the partial rays forward; and second mechanical shutters (16) disposed, corresponding to the positions of the small images (11), in front of the first mechanical shutters (14), transmitting forward the partial rays extracted in a time-division manner per each of the small images (11), reconstructing the partial rays as the rays, and converging each of the reconstructed rays in front to form a three-dimensional image.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: February 11, 2020
    Assignee: ASUKANET COMPANY, LTD.
    Inventor: Makoto Otsubo