公开(公告)号：US20190280236A1

公开(公告)日：2019-09-12

申请号：US16347476

申请日：2017-11-22

Applicant: Konica Minolta, Inc.

Inventor： Kenichi TABATA ,  Yuta NAKAMURA ,  Taketo NAMIKAWA ,  Satoru INOUE ,  Yasuo MIYATA ,  Hiromoto II

IPC: H01L51/50 ,  H01L51/00 ,  H01L51/56 ,  H01L51/52

Abstract: A luminescent film includes a host compound, a blue phosphorescent compound, and a blue fluorescent compound, in which an emission spectrum of the blue phosphorescent compound and an absorption spectrum of the blue fluorescent compound have portions overlapping with each other; shortest wavelength-side maximum emission wavelengths of the blue phosphorescent compound (abbreviated as “BPM” in the expression) and the blue fluorescent compound (abbreviated as “BFM” in the expression) satisfy the following expression (1): λBFM≥λBPM: expression (1) in which λBFM represents the shortest wavelength-side maximum emission wavelength of the blue fluorescent compound and λBPM represents the shortest wavelength-side maximum emission wavelength of the blue phosphorescent compound; and light emission derived from the blue fluorescent compound is detected.

公开(公告)号：US20220185974A1

公开(公告)日：2022-06-16

申请号：US17440071

申请日：2020-03-17

Applicant: Konica Minolta, Inc.

Inventor： Ryo NAKABAYASHI ,  Yasuo MIYATA ,  Kenichi TABATA

IPC: C08J5/18 ,  C09K11/06 ,  H01L51/00 ,  A61B5/1171 ,  A61B5/00 ,  A61B5/1455 ,  H01L51/50

Abstract: Provided is a wavelength conversion film containing a luminescent dye, wherein, in an absorption spectrum and an emission spectrum, when the spectrums are normalized so that two maximum intensities of an absorption band having a maximum absorption wavelength of a maximum intensity and an emission band having a maximum emission wavelength of a maximum intensity become the same intensity, and when a molar extinction coefficient at an intersection where the normalized absorption band and the normalized emission band overlap in the spectrum is ε, and a content of the luminescent dye included according to a film thickness per 1 cm2 of the wavelength conversion film is C (mol), the wavelength conversion film satisfies the following Expression (1), 1.0×10−3≤ε×C.  Expression (1)

公开(公告)号：US20220082740A1

公开(公告)日：2022-03-17

申请号：US17420631

申请日：2020-01-16

Applicant: Konica Minolta, Inc.

Inventor： Mio WATANABE ,  Kenichi TABATA ,  Ryo NAKABAYASHI ,  Yasuo MIYATA

IPC: G02B5/22 ,  G06K9/00 ,  G06F1/16 ,  H01L51/50

Abstract: Disclosed is a wavelength conversion film including at least two or more dyes and absorbing irradiation light to emit light at a longer wavelength than that of the irradiation light. The wavelength conversion film includes a first dye having a maximum absorption wavelength in a red light region, and a second dye absorbing excitation energy of the first dye to emit light in a near infrared region.

公开(公告)号：US20190319210A1

公开(公告)日：2019-10-17

申请号：US16344541

申请日：2017-11-22

Applicant: Konica Minolta, Inc.

Inventor： Yuta NAKAMURA ,  Satoru INOUE ,  Taketo NAMIKAWA ,  Yasuo MIYATA ,  Kenichi TABATA ,  Hiromoto II

IPC: H01L51/50 ,  C09K11/06 ,  H01L51/00

Abstract: The present invention addresses the problem of providing: an organic electroluminescent element which is capable of emitting light with high luminous efficiency, while having a long service life; and a composition for organic materials. An organic electroluminescent element according to the present invention comprises a positive electrode, a negative electrode and one or more organic functional layers arranged between the positive electrode and the negative electrode, and is characterized in that: the organic functional layers contain a phosphorescent metal complex and a fluorescent compound; the phosphorescent metal complex is a compound having a structure that is represented by a specific general formula; and the phosphorescent metal complex is a core-shell type dopant that satisfies a specific formula.

公开(公告)号：US20230295490A1

公开(公告)日：2023-09-21

申请号：US18011244

申请日：2021-06-18

Applicant: Konica Minolta, Inc.

Inventor： Yasuo MIYATA ,  Kenichi TABATA ,  Kazuma ODA ,  Kohei OGINO

IPC: C09K11/06 ,  G01N33/58 ,  C09K11/02

CPC classification number: C09K11/06 ,  G01N33/582 ,  G01N33/587 ,  C09K11/02 ,  C09K2211/1022 ,  C09K2211/1014 ,  C09K2211/1007

Abstract: The present invention addresses the problem of providing a luminescent labeling material for pathological diagnosis and luminescent nanoparticles for enabling high-sensitivity imaging that can avoid the negative impact of auto-fluorescence of cells on bioimaging. Provided are luminescent nanoparticles containing a luminescent dye, wherein the luminescent dye is a compound having a specific structure represented by Formula (1), and the luminescent nanoparticles have at least one of delayed luminesence or long Stokes shift luminescence.

公开(公告)号：US20220059790A1

公开(公告)日：2022-02-24

申请号：US17275890

申请日：2019-09-12

Applicant: Konica Minolta, Inc.

Inventor： Mio WATANABE ,  Ryo NAKABAYASHI ,  Kenichi TABATA ,  Rie KATAKURA ,  Yasuo MIYATA

IPC: H01L51/50 ,  H01L51/00

Abstract: Provided is a light emitting member that emits near-infrared light, containing a surface light source that emits at least red light and a wavelength conversion film that converts visible light of the surface light source into near-infrared light, wherein the light emitting member has a maximum emission wavelength in the wavelength range of 700 to 1500 nm.

公开(公告)号：US20200006687A1

公开(公告)日：2020-01-02

申请号：US16483119

申请日：2018-02-21

Applicant: Konica Minolta, Inc.

Inventor： Satoru INOUE ,  Taketo NAMIKAWA ,  Kenichi TABATA ,  Yuta NAKAMURA

IPC: H01L51/50

Abstract: An organic electroluminescent element including a light emitting layer containing a first host compound, a second host compound, and a phosphorescent metal complex disposed between a cathode and an anode, wherein the first and the second host compounds satisfy the requirements that: in comparison of emission bands of maximum emission intensity in fluorescence emission spectra of single films of the first host compound alone, the second host compound alone, and a mixture of the first and the second host compounds, a difference between a wavelength of a fluorescence emission end located on a longer wavelength side among fluorescence emission ends of the first host compound and the second host compound, and a wavelength of a fluorescence emission end of the mixture is −3 to 3 nm; and a LUMO energy level and a HOMO energy level of the first host compound and the second host compound satisfy specific relationships.