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公开(公告)号：US20220238832A1
公开(公告)日：2022-07-28
申请号：US17578629
申请日：2022-01-19
Inventor： Chihaya ADACHI , Hajime NAKANOTANI , Takahiko YAMANAKA , Shigeo HARA
Abstract: Provided is an organic modulation element including an organic modulation layer containing a plurality of organic semiconductor molecules, a first electrode, and a second electrode. Each of the plurality of organic semiconductor molecules is a molecule in which an excited state enabling reverse intersystem crossing from a lowest excited triplet state to a lowest excited singlet state is formed due to irradiation with the input light. In each of the plurality of organic semiconductor molecules, an intersystem crossing rate constant from the lowest excited singlet state to the lowest excited triplet state is greater than a reverse intersystem crossing rate constant from the lowest excited triplet state to the lowest excited singlet state, and the reverse intersystem crossing rate constant from the lowest excited triplet state to the lowest excited singlet state is greater than a non-radiative deactivation rate constant from the lowest excited triplet state to a ground state.
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公开(公告)号：US20170309850A1
公开(公告)日：2017-10-26
申请号：US15489776
申请日：2017-04-18
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Shigeo HARA , Wataru AKAHORI , Takahiko YAMANAKA , Tadataka EDAMURA
CPC classification number: H01L51/4273 , H01L51/0007 , H01L51/0036 , H01L51/0043 , H01L51/0047 , H01L51/4293 , Y02E10/549 , Y02P70/521
Abstract: Organic photoelectric conversion element has a first electrode, a photoelectric conversion layer, and a second electrode. The photoelectric conversion layer has a first organic layer that contains a first organic semiconductor containing principally a p-type organic semiconductor, a second organic layer that contains a second organic semiconductor containing principally an n-type organic semiconductor, and an intermediate layer that contains the first organic semiconductor and the second organic semiconductor. The second organic layer is disposed at a side of the second electrode relative to the first organic layer. The intermediate layer is between the first organic layer and the second organic layer and reaches each of these layers. The thickness of the second organic layer is greater than the sum of the thicknesses of the first organic layer and intermediate layer.
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公开(公告)号：US20230198224A1
公开(公告)日：2023-06-22
申请号：US17925089
申请日：2021-05-27
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Yoshitaka KUROSAKA , Kazuyoshi HIROSE , Yuu TAKIGUCHI , Akio ITO , Tadataka EDAMURA , Takahiko YAMANAKA , Shigeo HARA
CPC classification number: H01S5/026 , H01S5/34313 , H01S5/34353 , H01S5/11 , H01S5/04254 , H01S5/423 , H01S5/18308 , H01S2304/04
Abstract: An optical device of one embodiment outputs light in a short-wavelength range such as a visible range. The optical device includes a UC layer, first and second light-confinement layers, and a resonance mode forming layer. The UC layer contains an upconversion material receiving excitation light in a first wavelength range and outputting light in a second wavelength range. The first light-confinement layer has a characteristic of reflecting part of the second wavelength-range light. The second light-confinement layer has a characteristic of reflecting part of the second wavelength-range light and transmitting the remainder, and is disposed such that the UC layer locates between the first and second light-confinement layers. The resonance mode forming layer locates between the UC layer and the first or second light-confinement layer, includes a base layer and plural modified refractive index regions, and forms a resonance mode of the second wavelength-range light.
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公开(公告)号：US20200313120A1
公开(公告)日：2020-10-01
申请号：US16823886
申请日：2020-03-19
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takahiko YAMANAKA , Shigeo HARA
Abstract: An organic EL element 100 includes a light emitting layer 110 containing an organic light emitting material, a light shielding electrode 120 being arranged on one surface 110a side of the light emitting layer 110, a light transmissive electrode 130 being arranged on the other surface 110b side of the light emitting layer 110, a reflection filter 160 being arranged on a side opposite to the light emitting layer 110 with respect to the light transmissive electrode 130 and selectively reflecting a light L1 from the light emitting layer 110.
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公开(公告)号：US20180149595A1
公开(公告)日：2018-05-31
申请号：US15823599
申请日：2017-11-28
Inventor： Chihaya ADACHI , Hajime NAKANOTANI , Takahiko YAMANAKA , Shigeo HARA , Toru HIROHATA
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.
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Patent Agency Ranking
公开(公告)号：US20210036256A1
公开(公告)日：2021-02-04
申请号：US16942283
申请日：2020-07-29
Inventor： Chihaya ADACHI , Hajime NAKANOTANI , Takahiko YAMANAKA , Shigeo HARA , Toru HIROHATA
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.
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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。
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公开(公告)号：US20240057354A1
公开(公告)日：2024-02-15
申请号：US18269627
申请日：2022-01-17
Inventor： Chihaya ADACHI , Hajime NAKANOTANI , Takahiko YAMANAKA , Shigeo HARA
IPC: H10K30/20
CPC classification number: H10K30/20 , H10K2101/30
Abstract: An organic light-receiving element includes an organic light-receiving layer containing a plurality of organic semiconductor molecules. Each of the plurality of organic semiconductor molecules is a molecule in which an excited state enabling reverse intersystem crossing from a lowest excited triplet state to a lowest excited singlet state is formed in each of the plurality of organic semiconductor molecules due to irradiation with light.
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公开(公告)号：US20230053098A1
公开(公告)日：2023-02-16
申请号：US17883770
申请日：2022-08-09
Inventor： Takahiko YAMANAKA , Shigeo HARA , Chihaya ADACHI , Hajime NAKANOTANI
Abstract: Provided is an organic light-emitting element that is excited by an electromagnetic wave. The organic light-emitting element includes: a first electrode; a second electrode disposed to face the first electrode; an organic light-emitting layer disposed between the first electrode and the second electrode, where separation of charges occurs due to incidence of the electromagnetic wave; a hole transporting layer disposed between the first electrode and the organic light-emitting layer; and a charge block layer disposed between the second electrode and the organic light-emitting layer. The charge block layer has a LUMO level shallower than a LUMO level of organic light emitters included in the organic light-emitting layer.
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公开(公告)号：US20180151810A1
公开(公告)日：2018-05-31
申请号：US15823601
申请日：2017-11-28
Inventor： Chihaya ADACHI , Hajime NAKANOTANI , Takahiko YAMANAKA , Shigeo HARA , Toru HIROHATA
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.
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