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Tsuyoshi Nomura Phones & Addresses

  • Novi, MI
  • 1571 Abigail Way, Ann Arbor, MI 48103 (734) 369-8742 (734) 585-5480
  • Canton, MI
  • 1571 Abigail Way, Ann Arbor, MI 48103 (734) 369-8742

Publications

Us Patents

Magnetic Fluid Cooling Devices And Power Electronics Assemblies

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US Patent:
20130148301, Jun 13, 2013
Filed:
Dec 12, 2011
Appl. No.:
13/316954
Inventors:
Ercan Mehmet Dede - Ann Arbor MI, US
Jaewook Lee - Ann Arbor MI, US
Tsuyoshi Nomura - Ann Arbor MI, US
Assignee:
Toyota Motor Engineering & Manufacturing North America - Erlanger KY
International Classification:
H05K 7/20
F25B 21/00
US Classification:
361702, 62 31
Abstract:
Magnetic fluid cooling devices and power electronic devices are disclosed. In one embodiment, a magnetic fluid cooling device includes a magnetic field generating device, a magnetic fluid chamber assembly, and a heat sink device. The magnetic field generating device includes a plurality of magnetic regions having alternating magnetic directions such that magnetic flux generated by the magnetic field generating device is enhanced on a first side of the magnetic field generating device and inhibited on a second side of the magnetic field generating device. The magnetic fluid chamber assembly defines a magnetic fluid chamber configured to receive magnetic fluid. The heat sink device includes a plurality of extending fins, and is thermally coupled to the magnetic fluid chamber assembly. Power electronic devices are also disclosed, wherein the magnetic fluid chamber may be configured as opened or closed.

Fuel Cell Stacks And Methods For Forming Same For Providing Uniform Fluid Flow

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US Patent:
20210226229, Jul 22, 2021
Filed:
Jan 17, 2020
Appl. No.:
16/746475
Inventors:
- Plano TX, US
Yuqing Zhou - Ann Arbor MI, US
Tsuyoshi Nomura - Novi MI, US
Assignee:
TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC. - Plano TX
International Classification:
H01M 8/0258
H01M 8/0267
H01M 8/2483
Abstract:
A fuel cell stack for providing uniform fluid flow through a plurality of plates is provided. The fuel cell stack includes a plurality of plates that define a plurality of fuel cells stacked with each other, each plate having a fuel inlet hole for receiving fuel and a fuel outlet hole for discharging fuel. The fuel cell stack includes a fuel inlet insert extending into the fuel inlet hole of at least some of the plurality of plates. The fuel inlet insert has an upstream end and a downstream end relative to a direction of fuel flow through the fuel inlet holes. The upstream end of the fuel inlet insert has a porosity and permeability less than a porosity and permeability of the downstream end of the fuel inlet insert such that the fuel insert provides uniform fuel flow through the plurality of plates.

Fuel Cell Bipolar Plates With Flow Uniformity

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US Patent:
20210064715, Mar 4, 2021
Filed:
Sep 3, 2019
Appl. No.:
16/558943
Inventors:
- Plano TX, US
Tsuyoshi Nomura - Novi MI, US
International Classification:
G06F 17/50
H01M 8/0258
Abstract:
A bipolar plate with an enhanced fluid flow field design is provided for improved flow uniformity. The bipolar plate includes an inlet, an outlet, and a flow field having a pattern defining a plurality of microchannels configured to provide fluid communication between the inlet and the outlet. The pattern includes a plurality of channels with discrete areas of discontinuity to direct fluid from the inlet to the outlet. The pattern is designed using an inverse permeability field and is based on a reaction-diffusion algorithm to model channel spacing, thereby providing a variable pitch microchannel pattern. In various aspects, Gray-Scott reaction-diffusion equations may be used to obtain an anisotropic microchannel layout. Methods may include optimizing a porous media model domain for one of: a minimum flow resistance across the domain, a uniform velocity across a direction of the domain, and a minimum velocity across a direction of the domain.

Methods For Making Tailored Permeability Fuel Cell Bipolar Plates

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US Patent:
20200266453, Aug 20, 2020
Filed:
Feb 14, 2019
Appl. No.:
16/275394
Inventors:
- Plano TX, US
Tsuyoshi Nomura - Novi MI, US
Yu Yang Song - Ann Arbor MI, US
International Classification:
H01M 8/026
C25D 7/06
Abstract:
Methods are provided for designing a microchannel layout for a flow field of a bipolar plate. The methods include defining a fluid flow optimization domain with boundary conditions and loads. Using a gradient-based algorithm together with computational fluid dynamics, the domain is then optimized for minimum flow resistance. The methods include setting the minimum inverse permeability to a non-zero value, and obtaining a grayscale design and fluid velocity field. Using Gray-Scott reaction diffusion equations with the grayscale design and fluid velocity field, the method includes obtaining a microchannel layout. The microchannel layout is then incorporated as a pattern for the flow field of the bipolar plate. In various aspects, anisotropic microchannels are provided; they may be formed using at least one of an additive manufacturing technique, a metal inverse opal electroplating technique, and a hybrid combination thereof.

Phase Modulated Optical Waveguide

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US Patent:
20190229814, Jul 25, 2019
Filed:
Jan 24, 2018
Appl. No.:
15/878905
Inventors:
- Erlanger KY, US
Tsuyoshi Nomura - Novi MI, US
Jae Seung Lee - Ann Arbor MI, US
International Classification:
H04B 10/70
G01S 17/10
G01S 7/491
Abstract:
System, methods, and other embodiments described herein relate to a photonic apparatus. The photonic apparatus including a phase shifter that modulates a light wave propagated within the phase shifter by progressively shifting a phase of the light wave along a length of the phase shifter. The photonic apparatus includes optical outputs operably connected with the phase shifter at intervals along the length of the phase shifter. The optical outputs provide the light wave with different phases according to the intervals at which the optical outputs are spaced on the phase shifter.

Photonic Apparatus Using A Phase Alignment Waveguide

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US Patent:
20190170875, Jun 6, 2019
Filed:
Dec 5, 2017
Appl. No.:
15/832239
Inventors:
- Erlanger KY, US
Tsuyoshi Nomura - Novi MI, US
Jae Seung Lee - Ann Arbor MI, US
International Classification:
G01S 17/32
G02B 6/28
G02B 6/35
G01S 7/481
G01S 7/491
Abstract:
System, methods, and other embodiments described herein relate to a photonic apparatus. The photonic apparatus including a phase alignment waveguide including waveguide inputs and waveguide outputs. The waveguide inputs being operably connected with a light source to provide a light wave into the phase alignment waveguide and the waveguide outputs providing a plurality of light waves from the optical waveguide. The phase alignment waveguide modulates the light wave to generate the plurality of light waves with different phases. The photonic apparatus includes a transmit switch operably connected with the waveguide inputs to selectively connect at least one of the waveguide inputs with the light source to provide the light wave into the phase alignment waveguide. The photonic apparatus includes control circuitry operably connected with the transmit switch, the control circuitry dynamically activating the at least one of the waveguide inputs according to an electronic control signal.

Photonics Integrated Phase Measurement

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US Patent:
20190064332, Feb 28, 2019
Filed:
Aug 24, 2017
Appl. No.:
15/685277
Inventors:
- Erlanger KY, US
Tsuyoshi Nomura - Novi MI, US
Jae Seung Lee - Ann Arbor MI, US
International Classification:
G01S 7/491
G01S 17/36
G01S 7/481
G02F 1/29
G02F 1/225
Abstract:
System, methods, and other embodiments described herein relate to a photonic apparatus including integrated phase measurement. The photonic apparatus includes a phase shifter operably connected with a source optical waveguide to receive a source light wave and to shift a source phase of the source light wave to produce a shifted light wave with a shifted phase that is different from the source phase. The photonic apparatus includes an output optical waveguide connected with the phase shifter to provide the shifted wave and a reference optical waveguide operably connected with the source optical waveguide to provide the source light wave. The photonic apparatus includes a combiner to combine the shifted light wave with the source light wave to produce a combined light wave. The photonic apparatus includes a detector to determine a difference in phases between the shifted phase and the source phase as embodied in the combined wave.

Thermal Guiding For Photonic Components

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US Patent:
20190064554, Feb 28, 2019
Filed:
Aug 28, 2017
Appl. No.:
15/688026
Inventors:
- Erlanger KY, US
Paul Donald Schmalenberg - Ann Arbor MI, US
Tsuyoshi Nomura - Novi MI, US
International Classification:
G02F 1/01
G01C 3/02
Abstract:
System, methods, and other embodiments described herein relate to directing thermal energy within a photonic device. In one embodiment, the photonic device includes an optical component that is temperature sensitive and that provides a different response to light propagated within the optical component according to a present temperature of the optical component. The photonic device includes a heat source disposed at a separating distance from the optical component and that produces thermal energy within the photonic device. The photonic device includes a first thermal guide disposed proximate to the optical component and the heat source and spanning the separating distance. The first thermal guide concentrating the thermal energy from the heat source to the optical component.
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