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Patent Agency Ranking
公开(公告)号：US20250044508A1
公开(公告)日：2025-02-06
申请号：US18668813
申请日：2024-05-20
Inventor： Tatsuya KAMIYA , Yuki KAMATA , Toshihiro ODA
IPC: G02B6/122
Abstract: A phase adjuster includes: a first optical path extending along a predetermined direction to propagate a first light; and a second optical path extending along the predetermined direction to propagate a second light different from the first light. The first optical path and the second optical path oppose to each other. A portion of the first optical path and a portion of the second optical path are formed of members having different light refractive indexes.
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公开(公告)号：US20210373350A1
公开(公告)日：2021-12-02
申请号：US17319230
申请日：2021-05-13
Applicant: DENSO CORPORATION
Inventor： Toshihiro ODA , Yuki KAMATA , Koichi OYAMA
Abstract: A beam deflection system includes 2M laser light sources configured to emit laser lights, each laser light source being configured to switch two different center wavelengths to each other. The 2M laser light sources are divided into two sets of M types. The laser lights emitted from the two sets of M types of laser light sources are combined and input to a beam deflector. When (i) N is defined as an integer satisfying an expression of “1≤N≤M”, and (ii) center wavelengths of Nth laser light sources of the two sets of M laser light sources are defined as λN and λM+N, an expression of “λ1
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公开(公告)号：US20210063641A1
公开(公告)日：2021-03-04
申请号：US17009943
申请日：2020-09-02
Applicant: DENSO CORPORATION
Inventor： Yuki KAMATA , Toshihiro ODA
Abstract: A first optical waveguide is formed on a semiconductor substrate in such a way that the first optical waveguide is surrounded by clad layers. An outside portion of the first optical waveguide is formed as a terminator, which includes a taper portion and a bending structure portion. The taper portion has a width, which is gradually reduced in a direction to a forward end of the first optical waveguide. The taper portion coverts a light confinement condition from a strong condition to a weak condition in the direction to the forward end of the first optical waveguide. The bending structure portion has an arc shape extending from an outside end of the taper portion on a plane parallel to a surface of the semiconductor substrate.
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公开(公告)号：US20240302597A1
公开(公告)日：2024-09-12
申请号：US18437287
申请日：2024-02-09
Inventor： Yuki KAMATA , Toshihiro ODA
CPC classification number: G02B6/305 , G02B6/036 , G02F1/0115
Abstract: A spot size converter includes: a first core layer extending in a first direction and stacked on a cladding layer in a second direction; and a second core layer spaced apart from the first core layer in a third direction. The first core layer has a flat shape in which a size in the second direction is smaller than a size in the third direction, and includes a first tapered portion in which a size thereof in the third direction decreases along an emission direction. A size of the second core layer in the second direction is larger than that of the first core layer in the second direction, and includes a second tapered portion in which a size thereof in the third direction increases along the emission direction. The second tapered portion is disposed to overlap the first tapered portion in the third direction.
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公开(公告)号：US20230388018A1
公开(公告)日：2023-11-30
申请号：US18187307
申请日：2023-03-21
Inventor： Toshihiro ODA , Yuki KAMATA
IPC: H04B10/40
CPC classification number: H04B10/40
Abstract: An optical transceiver includes a plurality of light sources having a ring resonator, a reception antenna to receive light, and a wavelength-separating filter to separate, from the light received by the reception antenna, light of a same wavelength as the light output from a part of the plurality of light sources. The wavelength-separating filter is composed of the ring resonator included in the light source.
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