公开(公告)号：US20240288748A1

公开(公告)日：2024-08-29

申请号：US18585164

申请日：2024-02-23

Applicant: STANLEY ELECTRIC CO., LTD. ,  OSAKA UNIVERSITY

Inventor： Masahiro YOSHIIKE ,  Kazuki SATO ,  Hiroyuki TOGAWA ,  Ryuji KATAYAMA ,  Tomoyuki TANIKAWA ,  Masahiro UEMUKAI ,  Yusuke MORI ,  Masashi YOSHIMURA ,  Tomoaki NAMBU

IPC: G02F1/37 ,  G02F1/35 ,  G02F1/355

CPC classification number: G02F1/37 ,  G02F1/3503 ,  G02F1/3551

Abstract: A second harmonic generation element includes a substrate, a first multilayer film reflecting mirror, a second harmonic generation layer, and a second multilayer film reflecting mirror. The first multilayer film reflecting mirror is formed on the substrate. The second harmonic generation layer is disposed on the first multilayer film reflecting mirror. The second harmonic generation layer is made of a SrB4O7 crystal that receives a fundamental wave with a predetermined wavelength and emits a second harmonic wave with a wavelength in an ultraviolet region. The second multilayer film reflecting mirror is formed on the second harmonic generation layer. The second multilayer film reflecting mirror constitutes a resonator with the first multilayer film reflecting mirror.

公开(公告)号：US20180062037A1

公开(公告)日：2018-03-01

申请号：US15561028

申请日：2016-03-18

Applicant: STANLEY ELECTRIC CO., LTD. ,  THE UNIVERSITY OF TOKYO

Inventor： Hiroyuki TOGAWA ,  Masakazu SUGIYAMA

IPC: H01L33/24 ,  H01L33/06 ,  H01L33/14 ,  H01L33/32 ,  H01L33/00

CPC classification number: H01L33/24 ,  H01L33/007 ,  H01L33/06 ,  H01L33/12 ,  H01L33/14 ,  H01L33/145 ,  H01L33/22 ,  H01L33/32

Abstract: A light-emitting layer includes: a base layer with a plurality of base segments that have a composition subject to stress strain from a first semiconductor layer and are formed in a random net shape; and a quantum well structure layer including at least one quantum well layer and at least one barrier layer that are formed on the base layer. The base layer includes: a first sub-base layer; a trench that partitions the first sub-base layer for each of the plurality of base segments; and a second sub-base layer formed to bury the first sub-base layer.

公开(公告)号：US20250137610A1

公开(公告)日：2025-05-01

申请号：US18719552

申请日：2022-12-06

Applicant: Stanley Electric Co., Ltd.

Inventor： Hiroyuki TOGAWA ,  Hideo TAKAGI

IPC: F21S43/20 ,  F21S41/275 ,  F21Y115/10 ,  G02B1/18

Abstract: A light-transmitting resin member is provided that can inhibit color appearance in which the light-transmitting resin member appears to be colored depending on a viewpoint position. Provided is a light-transmitting resin member, in at least a part of a surface of which a plurality of groove structures configured with a plurality of linear protrusion portions and a plurality of linear recess portions are formed and in which the linear protrusion portions and the linear recess portions extend in directions parallel with each other and the grooves are formed at a pitch at which transmittance of visible light incident at an incident angle in a predetermined range becomes approximately constant, the visible light being incident on a region, in which the grooves are formed, in the surface, the visible light being transmitted through the light-transmitting resin member.

公开(公告)号：US20250123480A1

公开(公告)日：2025-04-17

申请号：US18689652

申请日：2022-09-09

Applicant: Stanley Electric Co., Ltd.

Inventor： Hideo TAKAGI ,  Hiroyuki TOGAWA ,  Shinichi TANAKA

IPC: G02B27/00

Abstract: A groove element includes a first groove region, a conical groove region having conical shape, and a second groove region with V shape cross section. At one end of the first groove region, a groove wall surface circumscribes conical surface from both sides, the conical surface having similar shape to the conical groove region and a size smaller than the conical groove region, and at the other end, groove wall surface circumscribes the conical groove region from both sides. At one end of the second groove region, groove wall surface circumscribes conical surface from both sides, and at the other end, groove wall surface circumscribes conical groove region from both sides. The first and second groove regions have same depth as the conical groove region at connection part connected to the conical groove region and have same depth as the conical surface at one end and the other end.

公开(公告)号：US20170317232A1

公开(公告)日：2017-11-02

申请号：US15525057

申请日：2015-10-22

Applicant: STANLEY ELECTRIC CO., LTD. ,  THE UNIVERSITY OF TOKYO

Inventor： Hiroyuki TOGAWA ,  Masakazu SUGIYAMA ,  Mathew MANISH

IPC: H01L33/06 ,  H01L33/32 ,  H01L33/00

CPC classification number: H01L33/06 ,  H01L33/0025 ,  H01L33/08 ,  H01L33/12 ,  H01L33/24 ,  H01L33/32

Abstract: A semiconductor light-emitting element includes: a first semiconductor layer of a first conductivity type; a light-emitting functional layer including a light emitting layer formed on the first semiconductor layer; and a second semiconductor layer that is formed on the light-emitting functional layer and of a conductivity type opposite to the conductivity type of the first semiconductor layer. The light-emitting layer has: a base layer that has a composition subject to stress strain from the first semiconductor layer and a plurality of base segments formed in a random net shape; and a quantum well structure layer formed by embedding the base layer and composed of at least one quantum well layer and at least one barrier layer. The base layer has a plurality of sub-base layers composed of AlGaN with different Al compositions.