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公开(公告)号：US11925046B2
公开(公告)日：2024-03-05
申请号：US16942283
申请日：2020-07-29
Inventor： Chihaya Adachi , Hajime Nakanotani , Takahiko Yamanaka , Shigeo Hara , Toru Hirohata
IPC: H10K50/18 , H10K50/11 , H10K71/00 , H10K101/40
CPC classification number: H10K50/18 , H10K50/11 , H10K71/00 , H10K2101/40
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：US10238290B2
公开(公告)日：2019-03-26
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: A61B5/1455 , A61B5/00
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.
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Patent Agency Ranking
公开(公告)号：US11258047B2
公开(公告)日：2022-02-22
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：US10673002B2
公开(公告)日：2020-06-02
申请号：US15489776
申请日：2017-04-18
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Shigeo Hara , Wataru Akahori , Takahiko Yamanaka , Tadataka Edamura
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：US10228328B2
公开(公告)日：2019-03-12
申请号：US15823599
申请日：2017-11-28
Inventor： Chihaya Adachi , Hajime Nakanotani , Takahiko Yamanaka , Shigeo Hara , Toru Hirohata
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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公开(公告)号：US11444248B2
公开(公告)日：2022-09-13
申请号：US15823601
申请日：2017-11-28
Inventor： Chihaya Adachi , Hajime Nakanotani , Takahiko Yamanaka , Shigeo Hara , Toru Hirohata
IPC: H01L51/00 , G01N21/64 , C09K11/06 , C07D279/18 , C07D209/82 , C07D219/04 , C07D265/38 , A61B5/00 , H01L51/50
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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公开(公告)号：US20240309268A1
公开(公告)日：2024-09-19
申请号：US18603403
申请日：2024-03-13
Applicant: Ayumi Nihei , HAMAMATSU PHOTONICS K.K.
Inventor： Takahiko Yamanaka , Shigeo Hara , Yoshitaka Kurosaka , Ayumi Nihei
IPC: C09K11/02 , C08F220/28 , C08F222/20 , C08K9/04 , C09K11/77
CPC classification number: C09K11/025 , C08F220/281 , C08F222/20 , C08K9/04 , C09K11/7773 , C08F2800/20 , C08K2201/005 , C08K2201/011
Abstract: Provided is a resin molded body with an improved luminous efficiency. Also provided is a composition for obtaining the resin molded body, and a method for producing a resin molded body.
A composition including: particles containing an upconversion material that receives excitation light in a first wavelength range and emits light in a second wavelength range shorter than the first wavelength range; and a curable component, in which the upconversion material contains a rare earth element, and the curable component includes a compound having an alkylene glycol group.
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