公开(公告)号：US20130128391A1

公开(公告)日：2013-05-23

申请号：US13740983

申请日：2013-01-14

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TDK CORPORATION

Inventor： Yoshihiko FUJI ,  Hideaki FUKUZAWA ,  Hiromi YUASA ,  Kunliang ZHANG ,  Min LI ,  Michiko HARA ,  Yoshinari KUROSAKI

IPC: G11B5/39

CPC classification number: G11B5/3906 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/39 ,  G11B5/3909 ,  G11B2005/3996 ,  H01L43/08 ,  Y10S977/943

Abstract: A magneto-resistance effect element, including: a fixed magnetization layer of which a magnetization is substantially fixed in one direction; a free magnetization layer of which a magnetization is rotated in accordance with an external magnetic field and which is formed opposite to the fixed magnetization layer; a spacer layer including a current confining layer with an insulating layer and a conductor to pass a current through the insulating layer in a thickness direction thereof and which is located between the fixed magnetization layer and the free magnetization layer; a thin film layer which is located in a side opposite to the spacer layer relative to the free magnetization layer; and a functional layer containing at least one element selected from the group consisting of Si, Mg, B, Al which is formed in or on at least one of the fixed magnetization layer, the free magnetization layer and the thin film layer.

Abstract translation: 一种磁电阻效应元件，包括：固定磁化层，其一个方向上的磁化基本固定; 自由磁化层，其磁化根据外部磁场而旋转并与固定磁化层相对形成; 间隔层，其包括具有绝缘层的电流限制层和导体，以使电流在其厚度方向上穿过绝缘层并位于固定磁化层和自由磁化层之间; 薄膜层，相对于自由磁化层位于与间隔层相反的一侧; 以及功能层，其含有选自由固定磁化层，自由磁化层和薄膜层中的至少一个中形成的Si，Mg，B，Al中的至少一种元素。

公开(公告)号：US20240402499A1

公开(公告)日：2024-12-05

申请号：US18800293

申请日：2024-08-12

Applicant: TDK Corporation

Inventor： Hideaki FUKUZAWA ,  Tomohito Mizuno ,  Tetsuya Shibata ,  Tsuyoshi Komaki

IPC: G02B27/01 ,  G02B6/12 ,  G02B6/125 ,  G02B27/00 ,  H10N50/10

Abstract: A method for manufacturing a video laser module including: a substrate provided with an optical waveguide; and a subcarrier with a laser light source mounted thereon, the method including: while supplying an electric current to the laser light source via an electrode provided in the subcarrier and oscillating a laser from the laser light source, approaching the subcarrier to an input port of the optical waveguide provided in the substrate; detecting a light intensity at an output port of the optical waveguide; adjusting a position of the subcarrier so that the light intensity is maximized; and metal-bonding the subcarrier and the substrate at a position of the subcarrier where the light intensity is maximized.

公开(公告)号：US20240332323A1

公开(公告)日：2024-10-03

申请号：US18610629

申请日：2024-03-20

Applicant: TDK Corporation

Inventor： Takekazu YAMANE ,  Tetsuya SHIBATA ,  Takeshi NOJIRI ,  Weihao ZHANG ,  Hideaki FUKUZAWA

IPC: H01L27/144 ,  H01L31/02 ,  H01L31/032

CPC classification number: H01L27/1443 ,  H01L31/02005 ,  H01L31/032

Abstract: An optical detection device includes first photoelectric conversion element that outputs first output when first photoelectric conversion element is irradiated with light pulse, and second photoelectric conversion element that outputs second output when second photoelectric conversion element is irradiated with light pulse. The optical detection device is configured to combine first signal caused by first output and second signal caused by second output when first photoelectric conversion element and second photoelectric conversion element are irradiated with same light pulse each other, in a state where first condition and second condition are satisfied. The first condition is condition that time position of peak of first signal is different from time position of peak of second signal. The second condition is condition that sign of amount of change until the first signal reaches the peak is different from a sign of the amount of change until the second signal reaches the peak.

公开(公告)号：US20240222928A1

公开(公告)日：2024-07-04

申请号：US18392571

申请日：2023-12-21

Applicant: TDK CORPORATION

Inventor： Hideaki FUKUZAWA ,  Tomohito MIZUNO ,  Tsuyoshi KOMAKI ,  Takashi AOYAGI ,  Ardalan HESHMATI ,  Kit Chu LAM

IPC: H01S5/02255 ,  G02B27/01 ,  H01S5/02253

CPC classification number: H01S5/02255 ,  G02B27/0172 ,  H01S5/02253 ,  G02B2027/0178

Abstract: The optical module includes a laser light source part in which a laser light emitting element is formed on one main surface of a first substrate, a mirror part in which an optical scanning mirror element is formed on one main surface of a second substrate, and a lens part in which an optical lens is formed on one main surface of a third substrate, wherein the first substrate and the third substrate are bonded via a metal bonding layer, and the optical module is configured for laser light emitted from the laser light emitting element to be reflected by the optical scanning mirror element via the optical lens.

公开(公告)号：US20240219709A1

公开(公告)日：2024-07-04

申请号：US18395915

申请日：2023-12-26

Applicant: TDK CORPORATION

Inventor： Hideaki FUKUZAWA ,  Tomohito Mizuno ,  Tsuyoshi Komaki ,  Ardalan Heshmati ,  Kit Chu Lam

IPC: G02B26/08 ,  G02B26/10 ,  H01S3/00

CPC classification number: G02B26/0833 ,  G02B26/101 ,  H01S3/0071

Abstract: An optical module includes: a laser light source part in which a laser light emitting element is formed on one main surface of a first substrate; and a mirror part in which an optical scanning mirror element is formed on one main surface of a second substrate, wherein the first substrate and the second substrate are bonded via a metal bonding layer, and the optical module is configured for laser light emitted from the laser light emitting element to be reflected by the optical scanning mirror element.

公开(公告)号：US20230194913A1

公开(公告)日：2023-06-22

申请号：US18073077

申请日：2022-12-01

Applicant: TDK CORPORATION

Inventor： Tomohito MIZUNO ,  Hideaki FUKUZAWA ,  Tetsuya SHIBATA

IPC: G02F1/09 ,  H01L31/0232

CPC classification number: G02F1/09 ,  H01L31/02327

Abstract: The light detection element includes a light-sensitive layer configured to generate a voltage when light is applied, a first electrode, and a second electrode. The light-sensitive layer is located between the first electrode and the second electrode. The second electrode is a metal containing at least one element selected from the group consisting of ruthenium, molybdenum, and tungsten.

公开(公告)号：US20230097100A1

公开(公告)日：2023-03-30

申请号：US17939472

申请日：2022-09-07

Applicant: TDK CORPORATION

Inventor： Tetsuya SHIBATA ,  Hideaki FUKUZAWA ,  Tomohito MIZUNO ,  Masahiro SHINKAI

IPC: H01S5/00 ,  H01S5/02325 ,  H01S5/22 ,  H01S5/02212 ,  H01S5/343 ,  G01J1/42

Abstract: The optical device includes a magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer, and a laser diode. At least a part of light emitted from the laser diode is applied to the magnetic element.

公开(公告)号：US20220208820A1

公开(公告)日：2022-06-30

申请号：US17559135

申请日：2021-12-22

Applicant: TDK CORPORATION

Inventor： Hideaki FUKUZAWA ,  Dai MATSUOKA ,  Tomohito MIZUNO ,  Tetsuya SHIBATA

IPC: H01L27/146 ,  H01L43/02 ,  H01L43/08 ,  H01L27/22

Abstract: An optical sensor includes a wavelength filter configured to transmit light in a specific wavelength range and a magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer. The light passing through the wavelength filter is applied to the magnetic element and the light applied to the magnetic element is detected.

公开(公告)号：US20220131612A1

公开(公告)日：2022-04-28

申请号：US17507143

申请日：2021-10-21

Applicant: TDK CORPORATION

Inventor： Hideaki FUKUZAWA ,  Tomohito MIZUNO ,  Tetsuya SHIBATA ,  Takashi KIKUKAWA

IPC: H04B10/50 ,  H04B10/40 ,  H04B10/532

Abstract: A transceiver device includes: a receiving device including a magnetic element having a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer, wherein the receiving device is configured to receive an optical signal; a transmission device including a modulated light output element, wherein the transmission device is configured to transmit an optical signal; and a circuit chip including an integrated circuit electrically connected to the magnetic element and the modulated light output element.