公开(公告)号：US20190326054A1

公开(公告)日：2019-10-24

申请号：US16347622

申请日：2017-11-07

Applicant: TDK Corporation

Inventor： Kenichi SUZUKI ,  Osamu OHHATA ,  Akihiro OHSAWA

IPC: H01F41/02 ,  H01F1/053

Abstract: A method for producing a rare earth magnet includes a molding step of supplying a metal powder including a rare earth element into a mold 2 to form a green compact 10; an orientation step of applying a pulse magnetic field H to the green compact 10 held in the mold 2 to orient the metal powder included in the green compact 10; and a sintering step of sintering the green compact 10 separated from the mold 2 after the orientation step. At least one part of the mold 2 is formed from a resin, and the green compact having a density adjusted to 3.0 g/cm3 or more and 4.4 g/cm3 or less is sintered.

公开(公告)号：US20250076835A1

公开(公告)日：2025-03-06

申请号：US18727132

申请日：2023-01-18

Applicant: TDK CORPORATION

Inventor： Ruriko SATO ,  Shinji ATSUZAWA ,  Osamu OHHATA ,  Shingo OZEKI ,  Masashi MATSUMOTO

IPC: G05B19/05

Abstract: An environment in which a control device for controlling a controlled object can easily be verified. This verification system includes: a simulator for simulating an operating state of the controlled object; and a dummy device for generating a second signal relating to the controlled object instead of the simulator or the controlled object, in accordance with a first signal provided from a control device capable of controlling the controlled object, and providing the generated second signal to the control device or the simulator. The simulator generates a third signal indicating the simulated operating state of the controlled object on the basis of the second signal provided from the dummy device.

公开(公告)号：US20240145151A1

公开(公告)日：2024-05-02

申请号：US18498131

申请日：2023-10-31

Applicant: TDK CORPORATION

Inventor： Masayoshi SHIMAZAKI ,  Osamu OHHATA ,  Naoto TSUKAMOTO ,  Sena YOSHINO ,  Nobuo KITAJIMA ,  Masashi GOTOH

IPC: H01F17/04 ,  H01F27/24 ,  H01F27/28

CPC classification number: H01F17/04 ,  H01F27/24 ,  H01F27/2823

Abstract: Provided is a coil component including a core member and a wire wound around the core member, wherein a cross section of the core member perpendicular to a winding axis of the wire wound around the core member has a circumference shape comprising at least three first arcs and connecting lines connecting the at least three first arcs adjacent to each other, and each of the at least three first arcs has a predetermined radius and a predetermined central angle for closely contacting the wire and the core member.

公开(公告)号：US20140307319A1

公开(公告)日：2014-10-16

申请号：US14251378

申请日：2014-04-11

Applicant: TDK Corporation

Inventor： Masaru UNO ,  Kazutomo IMI ,  Noriyuki KAWANO ,  Kazuhiko INOUE ,  Masashi GOTOH ,  Osamu OHHATA ,  Shintarou KOIKE ,  Yasuhide YAMASHITA

IPC: G02B27/64 ,  G02B7/04

CPC classification number: G02B27/646 ,  G02B7/08 ,  G03B3/10 ,  G03B2205/0069 ,  H04N5/2328

Abstract: A lens holding unit is held so that it can relatively move with respect to a base part to a direction vertical to an optical axis direction. The lens holding unit has a lens holder, a magnet part, and a spring. The lens holder has a first coil. The magnet part has a first magnet part which includes a first face facing to the first coil and a second magnet part which includes a second face vertical to the first face and constitutes a magnetic domain different from that of the first magnet part. These first magnet part and second magnet part are integrated.

Abstract translation: 保持透镜保持单元，使得其能够相对于基部相对于与光轴方向垂直的方向相对移动。 透镜保持单元具有透镜架，磁体部和弹簧。 透镜架具有第一线圈。 磁体部分具有第一磁体部分，其包括面向第一线圈的第一面和第二磁体部分，其包括垂直于第一面的第二面，并且构成与第一磁体部不同的磁畴。 这些第一磁体部分和第二磁体部分被集成。