公开(公告)号：US09683636B2

公开(公告)日：2017-06-20

申请号：US15051726

申请日：2016-02-24

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Daisuke Okamoto

IPC: F16H1/36 ,  F16H3/66 ,  F16H55/08

CPC classification number: F16H3/663 ,  F16H1/36 ,  F16H55/0873 ,  F16H2200/202

Abstract: A Ravigneaux planetary gear device includes a long pinion gear and a short pinion gear. A tooth of each of the long pinion gear and the short pinion gear has an end surface with curvature from an inner circumference side toward an outer circumference side of each of the long pinion gear and the short pinion gear and toward a center in a tooth width direction.

公开(公告)号：US20150082930A1

公开(公告)日：2015-03-26

申请号：US14384341

申请日：2013-02-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daisuke Okamoto

IPC: F16H55/08 ,  B21K1/30

CPC classification number: F16H55/08 ,  B21K1/305 ,  F16H55/0886 ,  Y10T29/49474 ,  Y10T74/19953

Abstract: In a gear mechanism that includes a gear in which a tooth trace is twisted at a predetermined angle with respect to an axial direction, a curvature radius along a line of contact at a meshing position where a line of contact does not intersect a pitch circle is formed larger than a curvature radius along a line of contact at a meshing position where a line of contact intersects a pitch circle, on a plane of action of the gear.

Abstract translation: 在包括齿迹相对于轴向以预定角度扭转的齿轮的齿轮机构中，在接触线不与节圆相交的啮合位置处的沿接触线的曲率半径为 在齿轮的作用平面上形成为大于在接触线与节圆相交的啮合位置处的接触线的曲率半径。

公开(公告)号：US09941039B2

公开(公告)日：2018-04-10

申请号：US14737876

申请日：2015-06-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daisuke Okamoto ,  Kiyotaka Onodera ,  Shinjiro Saigusa ,  Kohei Ishii ,  Masashi Ohtsubo ,  Junghwan Hwang ,  Masaaki Tani ,  Takeshi Hattori

IPC: H01F17/04 ,  H01F27/24 ,  H01F1/24 ,  H01F41/02 ,  H01F1/147 ,  H01F1/33 ,  B22F1/02 ,  C22C33/02 ,  H01F3/08 ,  H01F27/255

CPC classification number: H01F1/24 ,  B22F1/02 ,  B22F2998/10 ,  C22C33/0257 ,  C22C33/0264 ,  H01F1/14791 ,  H01F1/33 ,  H01F3/08 ,  H01F27/255 ,  H01F41/0246 ,  B22F2009/0828 ,  B22F9/08 ,  B22F9/04 ,  B22F3/02 ,  B22F3/10

Abstract: A soft magnetic member is formed such that, when a differential relative permeability in an applied magnetic field of 100 A/m is represented by a first differential relative permeability μ′L, and when a differential relative permeability in an applied magnetic field of 40 kA/m is represented by a second differential relative permeability μ′H, a ratio of the first differential relative permeability μ′L to the second differential relative permeability μ′H satisfies a relationship of μ′L/μ′H≤10, and a magnetic flux density in an applied magnetic field of 60 kA/m is 1.15 T or higher.

公开(公告)号：US10535454B2

公开(公告)日：2020-01-14

申请号：US15291350

申请日：2016-10-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daisuke Okamoto ,  Toshimitsu Takahashi ,  Sinjiro Saigusa ,  Kohei Ishii ,  Naoki Iwata ,  Jung Hwan Hwang ,  Masashi Ohtsubo ,  Takeshi Hattori ,  Masashi Hara

IPC: H01F3/08 ,  H01F1/147 ,  H01F1/24 ,  H01F1/28 ,  H01F41/02

Abstract: Provided is a compressed powder core that can suppress a decrease in the inductance even when a high magnetic field (of greater than or equal to 40 kA/m) is applied to the compressed powder core while suppressing an iron loss and a decrease in the strength of the compressed powder core. The compressed powder core 1A has soft magnetic particles 11A and aluminum nitride layers 12A formed on the surface layers of the respective soft magnetic particles 11A. The compressed powder core 1A has a ratio of the first differential relative permeability μ′L to the second differential relative permeability μ′H satisfying a relationship of μ′L/μ′H≤6, and has a magnetic flux density of greater than or equal to 1.4 T when a magnetic field of 60 kA/m is applied. The soft magnetic particles of the compressed powder core 1A contain Si in the range of 1.0 to 3.0 mass % and have, when analyzed using XRD, a peak area ratio Sal/Sfe of greater than or equal to 4%, the peak area ratio Sal/Sfe being the ratio of the area Sal of a peak waveform derived from AlN to the area Sfe of a peak waveform derived from Fe.

公开(公告)号：US20160071636A1

公开(公告)日：2016-03-10

申请号：US14847497

申请日：2015-09-08

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi OHTSUBO ,  Masaaki Tani ,  Takeshi Hattori ,  Junghwan Hwang ,  Masashi Hara ,  Shin Tajima ,  Shinjiro Saigusa ,  Kohei Ishii ,  Daisuke Okamoto ,  Toshimitsu Takahashi

IPC: H01F1/33 ,  C21D1/26 ,  B22F1/00 ,  B22F1/02 ,  H01F1/20 ,  C22C38/02 ,  B22F3/24 ,  B22F3/02 ,  H01F41/02 ,  C21D6/00 ,  C22C38/06

CPC classification number: H01F1/33 ,  B22F1/0003 ,  B22F1/02 ,  B22F3/02 ,  B22F3/24 ,  C21D1/26 ,  C21D6/008 ,  C22C38/02 ,  C22C38/06 ,  H01F1/20 ,  H01F1/24 ,  H01F1/26 ,  H01F41/02 ,  H01F41/0246

Abstract: A dust core includes soft magnetic particles, a first coating layer, a second coating layer, and a third coating layer. The first coating layer is made of aluminum oxide with which at least a part of surfaces of the soft magnetic particles are coated. The second coating layer is made of aluminum nitride with which at least a part of a surface of the first coating layer is coated. The third coating layer is made of low-melting-point glass with which at least a part of a surface of the second coating layer is coated. The low-melting-point glass has a softening point lower than an annealing temperature of the soft magnetic particles.

Abstract translation: 防尘芯包括软磁性颗粒，第一涂层，第二涂层和第三涂层。 第一涂层由氧化铝制成，软磁性颗粒的至少一部分表面被涂覆。 第二涂层由氮化铝制成，第一涂层的至少一部分表面被涂覆。 第三涂层由低熔点玻璃制成，第二涂层的至少一部分表面被涂覆。 低熔点玻璃的软化点低于软磁性粒子的退火温度。

公开(公告)号：US11002340B2

公开(公告)日：2021-05-11

申请号：US16035148

申请日：2018-07-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hironori Asaoka ,  Atsushi Honda ,  Motoki Tabuchi ,  Daisuke Okamoto ,  Naoyuki Kishimoto ,  Tomoe Osada

IPC: F16H3/66 ,  F16H37/04 ,  F16H3/095 ,  F16H61/04 ,  F16H61/10

Abstract: An automatic transmission includes a main transmission and an auxiliary transmission. The auxiliary transmission includes an auxiliary-transmission-side planetary gear mechanism, a first clutch, and a second clutch. The auxiliary-transmission-side planetary gear mechanism is provided between a pair of main-transmission-side planetary gear mechanisms, and a part of the auxiliary-transmission-side planetary gear mechanism is located within the main transmission. The first clutch fixes rotation of a sun gear of the auxiliary-transmission-side planetary gear mechanism. The second clutch connects a ring gear of the auxiliary-transmission-side planetary gear mechanism with the sun gear.

公开(公告)号：US10910153B2

公开(公告)日：2021-02-02

申请号：US13942116

申请日：2013-07-15

Applicant: Toyota Motor Engineering & Manufacturing North America, Inc. ,  Toyota Jidosha Kabushiki Kaisha

Inventor： Michael Paul Rowe ,  Sean Evan Sullivan ,  Daisuke Okamoto

IPC: H01F1/00 ,  H01F41/02 ,  B22F1/02 ,  C22C33/02 ,  H01F3/08 ,  B22F1/00 ,  H01F1/33

Abstract: Thermally annealed superparamagnetic core shell nanoparticles of an iron-cobalt alloy core and a silicon dioxide shell having high magnetic saturation are provided. A magnetic core of high magnetic moment obtained by compression sintering the thermally annealed superparamagnetic core shell nanoparticles is also provided. The magnetic core has little core loss due to hysteresis or eddy current flow.

公开(公告)号：US10714916B2

公开(公告)日：2020-07-14

申请号：US16028712

申请日：2018-07-06

Applicant: Yazaki Corporation ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Daisuke Okamoto ,  Yoshimichi Yamao ,  Hiroki Uno

IPC: H02G3/04 ,  B60R16/02 ,  H01B7/00

Abstract: A protector includes a main body formed with an accommodation part by a bottom wall part and side wall parts, a lid body mounted on the main body to cover the accommodation part, and a flange part that extends along a longitudinal direction of the main body with a gap at an upper portion in parallel with an outer surface of at least one of the side wall parts of the main body. A plurality of engagement holes are provided at a lower portion of the flange part. A plurality of engagement claws that are provided on at least one edge part of the lid body are locked with engagement edge parts of the engagement holes when the plurality of engagement claws are inserted into the gap between the flange part and the side wall part which faces the flange part with the gap.