公开(公告)号：US20230318067A1

公开(公告)日：2023-10-05

申请号：US18126511

申请日：2023-03-27

Applicant: Mazda Motor Corporation

Inventor： Takashi YAMAMOTO ,  Toshiki TAKAHASHI

IPC: H01M10/615 ,  H01M10/659 ,  H01M10/637 ,  H01M10/6554

CPC classification number: H01M10/615 ,  H01M10/659 ,  H01M10/637 ,  H01M10/6554

Abstract: A battery unit temperature management device may include a battery unit that can be charged and discharged, a heater that operates due to electricity supply from the battery unit and heats a heat exchange medium that exchanges heat with the battery unit, a changing structure that changes a heat transfer capacity between the battery unit and the heat exchange medium, and a controller that controls the heating of the heat exchange medium by the heater and the change of the heat transfer capacity by the changing structure. When a temperature Tw of the heat exchange medium does not reach a first temperature which is equivalent to a temperature of the battery unit while the heat exchange medium is heated by the heater, the controller may make the heat transfer capacity smaller than that when the temperature of the heat exchange medium has reached the first temperature.

公开(公告)号：US20220100934A1

公开(公告)日：2022-03-31

申请号：US17480996

申请日：2021-09-21

Applicant: MAZDA MOTOR CORPORATION ,  KOGAKUIN UNIVERSITY

Inventor： Daiji KATSURA ,  Keisuke YAMAKAWA ,  Takashi YAMAMOTO

IPC: G06F30/28 ,  G01N29/44 ,  G10K11/162

Abstract: A method of designing an internal structure of a foamed resin sound absorbing material includes: setting a microscopic structure model with a structure equivalent to the internal structure of the foamed resin sound absorbing material; calculating an acoustic characteristic by homogenization for each of a plurality of microscopic structure models, each being the microscopic structure model; identifying a relational expression between a Biot's parameter of the foamed resin sound absorbing material and the microscopic structure model; setting a target acoustic characteristic; identifying a Biot's parameter for achieving the target acoustic characteristic set, by Biot's modeling; and identifying a microscopic structure model corresponding to the Biot's parameter identified.

公开(公告)号：US20230318081A1

公开(公告)日：2023-10-05

申请号：US18125771

申请日：2023-03-24

Applicant: Mazda Motor Corporation

Inventor： Takashi YAMAMOTO ,  Toshiki TAKAHASHI

IPC: H01M10/6555 ,  H01M50/209 ,  H01M10/6568 ,  H01M10/63

CPC classification number: H01M10/6555 ,  H01M50/209 ,  H01M10/6568 ,  H01M10/63

Abstract: A battery unit temperature management device may include a plurality of battery units, a flow channel through which a heat exchange medium circulates so as to pass through the battery units, a plurality of changing structures provided to correspond to the battery units to make changes of heat transfer capacities between the battery units and the heat exchange medium, and a controller that controls, for each of the battery units, the change of the heat transfer capacity, by using each of the changing structures to reduce the temperature difference among the battery units.

公开(公告)号：US20210317482A1

公开(公告)日：2021-10-14

申请号：US17272862

申请日：2019-09-06

Applicant: HIROSHIMA UNIVERSITY ,  TOKYO INSTITUTE OF TECHNOLOGY ,  MAZDA MOTOR CORPORATION

Inventor： Atsushi SAKAMOTO ,  Kumiko OKAZAKI ,  Takashi YAMAMOTO ,  Hiroyuki OHTA ,  Koichi HORI ,  Shinsuke SHIMIZU ,  Akihide TAKAMI ,  Seiji NOMURA ,  Fumihiko SAITO

IPC: C12P7/64 ,  C12N1/12

Abstract: A microorganism having at least one SPX gene encoding SPX protein responsive to phosphorus deficiency, and characterized in that a function of the SPX protein is decreased or lost by introducing gene mutation into the SPX gene.