公开(公告)号：US20210036256A1

公开(公告)日：2021-02-04

申请号：US16942283

申请日：2020-07-29

Applicant: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION ,  HAMAMATSU PHOTONICS K.K.

Inventor： Chihaya ADACHI ,  Hajime NAKANOTANI ,  Takahiko YAMANAKA ,  Shigeo HARA ,  Toru HIROHATA

IPC: H01L51/50 ,  H01L51/56

Abstract: Provided is a light-emitting device including an organic light-emitting element and a control unit that controls the organic light-emitting element. The organic light-emitting element includes a first electrode, a second electrode, and an organic light-emitting layer which is disposed between the first electrode and the second electrode and in which separation of charges occurs due to incidence of excited light. The control unit changes a potential difference between the first electrode and the second electrode so that recoupling of the charges occurs, in a second period after passage of a delay period from a first period in which the excited light is incident to the organic light-emitting layer.

公开(公告)号：US20150276206A1

公开(公告)日：2015-10-01

申请号：US14666482

申请日：2015-03-24

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takahiko YAMANAKA ,  Shigeo HARA ,  Toru HIROHATA ,  Takashi WATANABE

IPC: F21V33/00 ,  F21V11/00 ,  A61B5/1455

CPC classification number: A61B5/0059 ,  A61B5/1455 ,  A61B2560/0412 ,  A61B2562/0238 ,  A61B2562/164 ,  A61B2562/222

Abstract: With a probe 2 in which an end of the organic photoelectric-conversion layer 23 on a projection optical path 10 side is covered by an upper electrode 24 having a light-blocking effect, light passing through the projection optical path 10 from a light source can be prevented from directly entering the organic photoelectric-conversion layer 23.

Abstract translation: 利用其中投影光路10侧的有机光电转换层23的端部被具有遮光效果的上电极24覆盖的探针2，从光源穿过投影光路10的光可以 防止直接进入有机光电转换层23。

公开(公告)号：US20180301591A1

公开(公告)日：2018-10-18

申请号：US15903200

申请日：2018-02-23

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Masamichi YAMANISHI ,  Akira HIGUCHI ,  Toru HIROHATA ,  Kazunori TANAKA ,  Kazuue FUJITA ,  Yasufumi TAKAGI ,  Yuta AOKI ,  Satoru OKAWARA

IPC: H01L33/00 ,  H05B33/08 ,  H01L33/38 ,  H01L33/20 ,  H01L33/06 ,  H01L33/30 ,  H01L33/46 ,  H01L33/32

Abstract: An optical semiconductor element includes: an optical waveguide body; a first electrode that is disposed on a second clad layer; a second electrode that is disposed on the second clad layer on one side of the first electrode in a light guiding direction of the optical waveguide body; a third electrode that is disposed on the second clad layer on the other side of the first electrode in the light guiding direction; and at least one fourth electrode that faces the first electrode, the second electrode, and the third electrode with the optical waveguide body interposed therebetween. The optical waveguide body includes a first separation region that electrically separates a first region under the first electrode from a second region under the second electrode and a second separation region that electrically separates the first region under the first electrode and a third region under the third electrode.

公开(公告)号：US20180149595A1

公开(公告)日：2018-05-31

申请号：US15823599

申请日：2017-11-28

Applicant: Kyushu University, National University Corporation ,  HAMAMATSU PHOTONICS K.K.

Inventor： Chihaya ADACHI ,  Hajime NAKANOTANI ,  Takahiko YAMANAKA ,  Shigeo HARA ,  Toru HIROHATA

IPC: G01N21/64 ,  H01L51/00 ,  H01L27/15

CPC classification number: G01N21/6486 ,  A61B5/0059 ,  H01L27/15 ,  H01L51/0034 ,  H01L51/0059 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/5004 ,  H01L51/5012 ,  H01L2251/552

Abstract: An organic EL element having a luminescence peak in a near-infrared range comprises a positive electrode, a negative electrode, and at least one organic layer including a luminescent layer located between the positive electrode and the negative electrode. The luminescent layer comprises a host material, a delayed fluorescent material and a luminescent material. The LUMO and HOMO energy levels of the delayed fluorescent material and the luminescent material, the absorption spectrum of the luminescent material, and the emission spectrum of the delayed fluorescent material satisfy predetermined relationships.

公开(公告)号：US20180151810A1

公开(公告)日：2018-05-31

申请号：US15823601

申请日：2017-11-28

Applicant: Kyushu University, National University Corporation ,  HAMAMATSU PHOTONICS K.K.

Inventor： Chihaya ADACHI ,  Hajime NAKANOTANI ,  Takahiko YAMANAKA ,  Shigeo HARA ,  Toru HIROHATA

IPC: H01L51/00 ,  G01N21/64 ,  C09K11/06

CPC classification number: H01L51/0072 ,  A61B5/0059 ,  C07D209/82 ,  C07D219/04 ,  C07D265/38 ,  C07D279/18 ,  C09K11/06 ,  G01N21/6486 ,  H01L51/0059 ,  H01L51/5024

Abstract: An organic electro-luminescent element having a luminescence peak in a near-infrared range, comprising a positive electrode, a negative electrode, and at least one organic layer including a luminescent layer located between the positive electrode and the negative electrode, wherein the luminescent layer comprises a host material, a delayed fluorescent material and a luminescent material, wherein each of the delayed fluorescent material and the luminescent material have a structure with two or three benzene rings bonded to an N atom.

公开(公告)号：US20150123076A1

公开(公告)日：2015-05-07

申请号：US14525415

申请日：2014-10-28

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazuue FUJITA ,  Toru HIROHATA ,  Tadataka EDAMURA ,  Tatsuo DOUGAKIUCHI

IPC: H01L31/0352

CPC classification number: H01L31/035236 ,  H01L31/06875 ,  H01L31/09 ,  H01L31/105

Abstract: A quantum cascade detector includes a semiconductor substrate, and an active layer formed by laminating unit laminate structures each having an absorption region with a first barrier layer to a second well layer and a transport region with a third barrier layer to an n-th well layer. A second absorption well layer has a layer thickness ½ or less of that of a first absorption well layer thickest in one period, and a coupling barrier layer has a layer thickness smaller than that of an exit barrier layer thickest in one period. The unit laminate structure has a detection lower level arising from a ground level in the first well layer, a detection upper level generated by coupling an excitation level in the first well layer and a ground level in the second well layer, and a transport level structure for electrons.

Abstract translation: 量子级联检测器包括半导体衬底和通过层叠单元层压结构形成的有源层，每个层叠结构具有带有第一阻挡层的吸收区域到第二阱层以及具有第三阻挡层到第n阱层的传输区域 。 第二吸收阱层具有在一个周期中最厚的第一吸收阱层的层厚度的1/2或更小，并且耦合阻挡层的层厚度小于在一个周期中最厚的出口阻挡层的层厚度。 单元层叠结构具有从第一阱层的地电平产生的检测下位电平，通过耦合第一阱层中的激发电平而产生的检测上限电平和第二阱层中的接地电平，以及传输电平结构 对于电子。

公开(公告)号：US20140319637A1

公开(公告)日：2014-10-30

申请号：US14259509

申请日：2014-04-23

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazutoshi NAKAJIMA ,  Minoru NIIGAKI ,  Toru HIROHATA ,  Hiroyuki YAMASHITA ,  Wataru AKAHORI

IPC: H01L31/0232

CPC classification number: H01L31/0232 ,  H01L31/02327 ,  H01L31/035209 ,  H01L31/035218 ,  H01L31/035236 ,  H01L31/09

Abstract: A photodetector 1A comprises an optical element 10A for generating an electric field component in a predetermined direction when light is incident thereon along the predetermined direction, the optical element 10A having a structure including first regions and second regions periodically arranged with respect to the first regions along a plane perpendicular to the predetermined direction; and a semiconductor layer 40, arranged on the other side opposite from one side in the predetermined direction with respect to the optical element 10A, having a semiconductor multilayer body 42 for generating a current according to the electric field component; each end part on the other side of the second regions being located closer to the other side than is each end part on the other side of the first regions; each first region being made of a dielectric body having a refractive index greater than that of each second region.

Abstract translation: 光电检测器1A包括光学元件10A，用于沿着预定方向入射到其上时沿预定方向产生预定方向的电场分量，光学元件10A具有包括第一区域和第二区域的结构，该第一区域和第二区域相对于第一区域周期性地布置 垂直于预定方向的平面; 以及半导体层40，其配置在相对于光学元件10A的与预定方向相对的另一侧上，具有用于根据电场分量产生电流的半导体多层体42; 第二区域的另一侧的每个端部位于比第一区域的另一侧的每个端部更靠近另一侧的位置; 每个第一区域由折射率大于每个第二区域的折射率的电介质体制成。

公开(公告)号：US20130320470A1

公开(公告)日：2013-12-05

申请号：US13899940

申请日：2013-05-22

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazutoshi NAKAJIMA ,  Toru HIROHATA ,  Minoru NIIGAKI ,  Wataru AKAHORI ,  Kazuue FUJITA

IPC: H01L31/0352

CPC classification number: H01L31/0352 ,  B82Y20/00 ,  H01L27/1446 ,  H01L27/14649 ,  H01L31/035236 ,  H01L31/09

Abstract: A photodetector 1A comprises a multilayer structure 3 having a first layer 4 constituted by first metal or first semiconductor, a semiconductor structure layer 5 mounted on the first layer 4 and adapted to excite an electron by plasmon resonance, and a second layer 6 mounted on the semiconductor structure layer 5 and constituted by second metal or second semiconductor.

Abstract translation: 光电检测器1A包括具有由第一金属或第一半导体构成的第一层4的多层结构3，安装在第一层4上并适于通过等离子体共振激发电子的半导体结构层5和安装在第一层上的第二层6 半导体结构层5，由第二金属或第二半导体构成。

公开(公告)号：US20130307108A1

公开(公告)日：2013-11-21

申请号：US13888656

申请日：2013-05-07

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazutoshi NAKAJIMA ,  Toru HIROHATA ,  Wataru AKAHORI ,  Kazunori TANAKA ,  Kazuue FUJITA

IPC: H01L31/0232

CPC classification number: H01L31/02327 ,  G02B1/005

Abstract: An optical element 10 for transmitting light therethrough along a predetermined direction and modulating the light comprises a structure 11 having a first region R1 and a second region R2 periodically arranged with respect to the first region R1 along a plane perpendicular to the predetermined direction, the first and second regions R1, R2 having respective refractive indexes different from each other, and properties of transmitting the light therethrough.

Abstract translation: 用于沿着预定方向透射光并调制光的光学元件10包括具有第一区域R1和第二区域R2的结构11，第一区域R1和第二区域R2沿着垂直于预定方向的平面相对于第一区域R1周期性地布置， 和具有各自折射率彼此不同的第二区域R1，R2以及透射光的性质。