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公开(公告)号：US20250102705A1
公开(公告)日：2025-03-27
申请号：US18891263
申请日：2024-09-20
Applicant: TDK Corporation
Inventor： Tomohito MIZUNO , Hideaki FUKUZAWA , Tetsuya SHIBATA , Tsuyoshi KOMAKI , Takeshi NOJIRI
Abstract: A metasurface reflector includes: a first metal layer and a second metal layer stacked in a first direction; a dielectric layer provided between the first metal layer and the second metal layer in the first direction; and a protective layer covering a surface of the second metal layer opposite to the dielectric layer. The dielectric layer includes a main surface on which the second metal layer is provided. The metasurface reflector is divided into a plurality of unit regions arranged in a second direction along the main surface and in a third direction along the main surface and intersecting the second direction. The second metal layer includes metal units respectively provided in all or some of the plurality of unit regions. The protective layer is made of a metal having a standard electrode potential higher than that of a metal constituting the second metal layer.
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公开(公告)号：US20240283216A1
公开(公告)日：2024-08-22
申请号：US18524024
申请日：2023-11-30
Applicant: TDK CORPORATION
Inventor： Takashi HONDA , Takashi AOYAGI , Makoto FUKUDA , Tsuyoshi KOMAKI , Ryohei FUKUZAKI
IPC: H01S5/02315 , H01S5/02
CPC classification number: H01S5/02315 , H01S5/0201
Abstract: What is provided is a subcarrier wafer in which chipping, particles, cracking, and the like are curbed.
This subcarrier wafer is a subcarrier wafer for a laser module including a wafer, and a plurality of protective layers that are provided on a main surface of the wafer. The plurality of protective layers are arrayed separately, and a part on the main surface of the wafer is exposed.-
公开(公告)号：US20230229056A1
公开(公告)日：2023-07-20
申请号：US18097881
申请日：2023-01-17
Applicant: TDK CORPORATION
Inventor： Hideaki FUKUZAWA , Joji OKADA , Takashi KIKUKAWA , Tsuyoshi KOMAKI
CPC classification number: G02F1/212 , G02B27/0172 , G02F1/035 , G02F1/0123 , H04B10/505 , G02B2027/0178
Abstract: A light source unit (1000) of the present disclosure includes a light source part (100), a first electrical signal generating device (40-1) configured to control current that drives an optical semiconductor device (30), an optical modulator (200) having a Mach-Zehnder type optical waveguide (10) and an electrode configured to apply an electric field to the optical waveguide (10), and a second electrical signal generating device (40-2) configured to control a voltage that operates the optical modulator (200), the first electrical signal generating device (40-1) and the second electrical signal generating device (40-2) are synchronizably connected to each other, and intensity of light emitted from the optical modulator (200) is changed by the current controlled by the first electrical signal generating device (40-1) and the voltage controlled by the second electrical signal generating device (40-2).
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公开(公告)号：US20150357493A1
公开(公告)日：2015-12-10
申请号：US14732065
申请日：2015-06-05
Applicant: TDK CORPORATION
Inventor： Tsuyoshi KOMAKI , Hirokazu FUJIOKA , Hisao MOROOKA , Hiroshi YAMADA
IPC: H01L31/048
CPC classification number: H01L31/048 , B32B17/00 , G04C10/02 , H01L31/03921 , H01L31/046 , H01L31/0481 , H01L31/075 , Y02E10/548
Abstract: In a solar cell in a sheet form, a first cured resin layer, a substrate containing a resin, a photoelectric conversion layer, and a second cured resin layer are stacked in this order. The linear expansion coefficient of the first cured resin layer is not less than that of the second cured resin layer, and the linear expansion coefficient of the second cured resin layer is larger than that of the substrate. When the cure degree of a first surface of the first cured resin layer facing the substrate is C1 % and the cure degree of a second surface of the first cured resin layer is C2 %, C2 is larger than C1 and (C2−C1) is 2 to 15%. A surface on the first cured resin layer of the solar cell is warped convexly and a surface on the second cured resin layer is warped concavely.
Abstract translation: 在片状的太阳能电池中，依次层叠第一固化树脂层，含有树脂的基板，光电转换层和第二固化树脂层。 第一固化树脂层的线膨胀系数不小于第二固化树脂层的线膨胀系数，并且第二固化树脂层的线膨胀系数大于基材的线膨胀系数。 当第一固化树脂层的与基板相对的第一表面的固化度为C1％，第一固化树脂层的第二表面的固化度为C2％时，C2大于C1，（C2-C1）为 2〜15％。 太阳能电池的第一固化树脂层上的表面翘曲翘曲，第二固化树脂层上的表面凹陷地翘曲。
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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.
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Patent Agency Ranking
公开(公告)号：US20240272421A1
公开(公告)日：2024-08-15
申请号：US18406332
申请日：2024-01-08
Applicant: TDK CORPORATION
Inventor： Hideaki FUKUZAWA , Tomohito MIZUNO , Tsuyoshi KOMAKI , Ardalan HESHMATI , Kit Chu LAM
CPC classification number: G02B26/101 , G02B26/0833 , G02B27/0172 , G02B2027/0178
Abstract: An optical module for displaying an image: a laser light source part with laser light emitting elements emitting laser lights having different peak wavelengths; a mirror part with an optical scanning mirror element on a second substrate integrated with the first substrate; a laser drive control part individually and independently controlling an intensity of laser light from the laser light emitting elements; a mirror drive control part controlling swinging of the optical scanning mirror element; a memory storing a lookup table that is an array of correspondence relations between each swing position of the optical scanning mirror element and a projection position of laser light from the laser light emitting elements on the image display surface; and a system control part controlling the laser drive control part and the mirror drive control part so as to control the mirror drive control part based on the lookup table.
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公开(公告)号：US20240255828A1
公开(公告)日：2024-08-01
申请号：US18018387
申请日：2021-07-30
Applicant: TDK CORPORATION
Inventor： Takashi KIKUKAWA , Tsuyoshi KOMAKI , Hideaki FUKUZAWA , Hiroki HARA
CPC classification number: G02F1/2255 , G02F1/212 , G02F1/035
Abstract: A visible light modulation device includes a light source part having a plurality of optical semiconductor devices configured to emit light with a visible light wavelength of 400 nm to 700 nm, and a light modulation output part having three Mach-Zehnder type optical waveguides consisting of a convex fabricated lithium niobate film, and being configured so that light emitted from each of the plurality of optical semiconductor devices is incident on the corresponding Mach-Zehnder type optical waveguide.
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公开(公告)号：US20240142787A1
公开(公告)日：2024-05-02
申请号：US18383642
申请日：2023-10-25
Applicant: TDK CORPORATION
Inventor： Hideaki FUKUZAWA , Tsuyoshi KOMAKI , Ardalan HESHMATI
CPC classification number: G02B27/18 , G02B5/005 , G02B6/4257 , G02B26/101 , G02B27/0172 , G02B26/0833
Abstract: A laser module includes a laser light source, a package in which the laser light source is housed and a light transmission window through which laser light output from the laser light source can be optically transmitted is provided on a wall portion, and an output light aperture provided inside or outside of the package and arranged in a traveling direction of the laser light to adjust an area of a passage port of the laser light.
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公开(公告)号：US20240103277A1
公开(公告)日：2024-03-28
申请号：US18373007
申请日：2023-09-26
Applicant: TDK CORPORATION
Inventor： Hideaki FUKUZAWA , Tomohito MIZUNO , Tetsuya SHIBATA , Tsuyoshi KOMAKI
CPC classification number: G02B27/0172 , G02B6/12004 , G02B6/12007 , G02B6/125 , G02B27/0093 , H10N50/10 , G02B2006/12104 , G02B2027/0178
Abstract: This optical waveguide detection element includes a substrate, an optical waveguide layer formed on the substrate, and a photodetector. The optical waveguide layer includes a first optical waveguide in which visible light having a wavelength of 380 nm to 800 nm propagates, a second optical waveguide in which near-infrared light having a wavelength of 801 nm to 2000 nm propagates, and a third optical waveguide in which light propagates to a light receiving surface of the photodetector. A visible light output port of the first optical waveguide from which the visible light is output, a near-infrared light output port of the second optical waveguide from which the near-infrared light is output, and a reflected light input port of the third optical waveguide to which the near-infrared light is reflected and returned are arranged on one end surface of the optical waveguide layer.
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公开(公告)号：US20220382181A1
公开(公告)日：2022-12-01
申请号：US17827252
申请日：2022-05-27
Applicant: TDK CORPORATION
Inventor： Kuniyasu ITO , Tsuyoshi KOMAKI , Hideaki FUKUZAWA
Abstract: A integrated light source module includes a planar optical waveguides layer having N light incident ports aligned with respect to each other, M light exit ports aligned with respect to each other, and optical waveguides connected to the N light incident ports and the M light exit ports, and N optical semiconductor devices facing each of the N light incident ports arranged so that light emitted from each of the N optical semiconductor devices can be incident on each of the N light incident ports, wherein light emitted from the M light exit ports can be applied to an object to be irradiated.
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