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公开(公告)号：US20240301701A1
公开(公告)日：2024-09-12
申请号：US18273049
申请日：2022-01-20
Inventor： Yuki KOTANI , Shozo OSHIO , Masahiro NAKAMURA , Tetsushi KONDA
CPC classification number: E04F13/0835 , B32B3/06 , B32B7/022 , B32B7/06 , B32B27/08 , B32B27/365 , B32B27/40 , E04F13/0866 , B32B2307/51 , B32B2307/7376 , B32B2419/00
Abstract: A connection structure includes: a first structure body and a second structure body which is detachably connected to the first structure body. The first structure body includes a first fitting portion, and the second structure body includes a second fitting portion which is detachably fitted with the first fitting portion. At least one of the first fitting portion or the second fitting portion is an anisotropic elastic structure body including a periodic structure and having an elasticity which differs depending on a direction. When a fitting direction in which the first fitting portion and the second fitting portion are fitted together is a first direction, and a direction which is orthogonal to the first direction is a second direction, the anisotropic elastic structure body has an elasticity which is greater in the second direction than in the first direction.
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22.发明公开公开(公告)号：US20240079532A1
公开(公告)日：2024-03-07
申请号：US18272647
申请日：2021-12-24
Inventor： Mitsuru NITTA , Ryosuke SHIGITANI , Shozo OSHIO
CPC classification number: H01L33/502 , C09K11/684 , H01L33/507
Abstract: Provided is a phosphor that contains Cr3+ and emits near-infrared light, wherein a host crystal of the phosphor has a crystal structure same as that of a compound Mg3Ga2GeO8, a fluorescence spectrum FF1 has a fluorescence peak FPF1 within a range of wavelengths of 700 or more and less than 900 nm, and a fluorescence spectrum data group FD that is an aggregate of spectral intensities of the fluorescence spectrum FF1 at every 10 nm exhibits a unimodal shape within the range of wavelengths of 700 or more and less than 900 nm.
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公开(公告)号：US20220239057A1
公开(公告)日：2022-07-28
申请号：US17613792
申请日：2020-04-21
Inventor： Mitsuru NITTA , Takeshi ABE , Shozo OSHIO
Abstract: A light emitting device includes a light source that emits a primary light having a light energy density exceeding 0.5W/mm2, and a first phosphor that absorbs the primary light to convert the primary light into a first wavelength-converted light having a wavelength longer than that of the primary light. The first phosphor includes a compound serving as a host, the compound being a simple oxide including one kind of metal element or a composite oxide including a plurality of different kinds of the simple oxide as an end member. When an energy conversion value at a peak wavelength of the primary light is E1 electron volts and an energy conversion value at a fluorescence peak wavelength of the first wavelength-converted light is E2 electron volts, a bandgap energy of a crystal of the simple oxide is larger than a sum of the E1 electron volts and the E2 electron volts.
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24.发明申请公开(公告)号：US20220218191A1
公开(公告)日：2022-07-14
申请号：US17604418
申请日：2020-02-19
Inventor： Takeshi ABE , Shozo OSHIO , Mitsuru NITTA
Abstract: A light emitting device includes a first wavelength converter that converts the primary light into a first wavelength-converted light; and a second wavelength converter that converts the primary light into a second wavelength-converted light. The first wavelength-converted light is a fluorescence having a light component over an entire wavelength range of 700 nm or more to 800 nm or less and having a peak where a fluorescence intensity shows a maximum value in a wavelength range of 700 nm or more, and the second wavelength-converted light is a fluorescence having a peak where a fluorescence intensity shows a maximum value in a wavelength range of 380 nm or more to less than 700 nm. The light emitting device emits a first output light including the first wavelength-converted light and a second output light including the second wavelength-converted light alternately in time.
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25.发明申请公开(公告)号：US20220192477A1
公开(公告)日：2022-06-23
申请号：US17603910
申请日：2020-02-19
Inventor： Takeshi ABE , Shozo OSHIO , Mitsuru NITTA
Abstract: A light emitting device includes a light source configured to emit a primary light, a first phosphor that absorbs the primary light and converts the primary light into a first wavelength-converted light having a wavelength longer than that of the primary light, and a second phosphor that absorbs the primary light and converts the primary light into a second wavelength-converted light having a wavelength longer than that of the primary light. The first wavelength-converted light is a fluorescence having a light component over an entire wavelength range of 700 nm or more to 800 nm or less. The second wavelength-converted light is a fluorescence having a peak where a fluorescence intensity shows a maximum value in a wavelength range of 380 nm or more to less than 700 nm. The first wavelength-converted light has a 1/10 afterglow time longer than that of the second wavelength-converted light.
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Patent Agency Ranking
公开(公告)号：US20220175250A1
公开(公告)日：2022-06-09
申请号：US17604419
申请日：2020-02-19
Inventor： Takeshi ABE , Shozo OSHIO , Mitsuru NITTA
Abstract: A wavelength converter includes a first phosphor activated with Cr3+; and a second phosphor activated with at least one ion of Ce3+ or Eu2+. A fluorescence spectrum of a fluorescence emitted by the second phosphor has a peak where a fluorescence intensity shows a maximum value in a wavelength range of 500 nm or more to less than 580 nm. The wavelength converter emits a fluorescence having a light component over an entire range of 500 nm or more to less than 580 nm. The wavelength converter emits a light having a spectrum in which a ratio of a minimum light emission intensity to a maximum light emission intensity is 40% or less in a wavelength range of 550 nm or more to 700 nm or less.
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公开(公告)号：US20210091539A1
公开(公告)日：2021-03-25
申请号：US16630395
申请日：2018-06-20
Inventor： Takeshi ABE , Shozo OSHIO
Abstract: A light emitting device includes: a solid-state light emitting element that radiates blue-series laser light; and a wavelength converter 100 that absorbs the laser light and performs wavelength conversion of the absorbed laser light into light with a longer wavelength than a wavelength of the laser light. The wavelength converter includes: a silicate phosphor 1 containing Lu2CaMg2(SiO4)3:Ce3+ as a main component; and an aluminate phosphor 2 containing Lu3(Al1-xGax)2(AlO4)3:Ce3+ (where x is a numeric value that satisfies 0
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公开(公告)号：US20210048168A1
公开(公告)日：2021-02-18
申请号：US17047220
申请日：2019-04-10
Inventor： Tatsuya OKUNO , Takeshi ABE , Shozo OSHIO
Abstract: Alight emitting device (A) includes a laser light source (1) that emits laser light (100), a housing (2A) that includes a bottom wall (3) and a side wall, and a first wavelength converter (20) provided on the side wall, the first wavelength converter (20) containing a first phosphor. The bottom wall of the housing is irradiated with the laser light emitted from the laser light source, and the first phosphor is excited by diffused light of the laser light diffused by the bottom wall. With such a configuration, the light emitting device (A) improves color uniformity and chromaticity flexibility while increasing power density of output light.
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公开(公告)号：US20190035983A1
公开(公告)日：2019-01-31
申请号：US16072532
申请日：2017-03-06
Inventor： Takeshi ABE , Shozo OSHIO
Abstract: A phosphor composed by containing Ce3+ as a light emission center in a matrix garnet compound having a garnet structure. The matrix garnet compound is a solid solution composed of two or more end members, and the end members include Lu2CaMg2(SiO4)3 as a first end member. It is preferable that the matrix garnet compound is a compound containing Al. A light emitting device uses the phosphor 2 and includes a solid-state light emitting device 117. The phosphor 2 is excited by light radiated by the solid-state light emitting device 117.
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公开(公告)号：US20180016496A1
公开(公告)日：2018-01-18
申请号：US15547352
申请日：2016-02-03
Inventor： Natsuki SATO , Yoshimitsu IKOMA , Shozo OSHIO
IPC: C09K11/77 , H01L31/055 , G02B5/02
CPC classification number: C09K11/7733 , C09K11/772 , G02B5/0242 , G02B5/20 , H01L31/055 , Y02E10/52
Abstract: A phosphor of the present invention has a crystal structure in which at least one of Ce3+ and Eu2+ is substituted for a part of a host crystal that contains at least one of an alkaline earth metal element and a rare earth element and does not contain an alkaline metal element. In the phosphor, a light emission spectrum measured at room temperature has a light emission peak, which is derived from at least one of Ce3+ and Eu2+, within a wavelength range of 440 nm or more to less than 1200 m, the light emission peak indicates a maximum intensity value of the light emission spectrum, and a refractive index is 1.41 or more to less than 1.57.
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