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公开(公告)号：US11676809B2
公开(公告)日：2023-06-13
申请号：US17956294
申请日：2022-09-29
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Akio Suzuki , Toru Fujita , Shinichi Ohba , Akinori Asai , Tomoya Nakazawa , Taiga Morimoto
CPC classification number: H01J61/302 , H01J61/35 , H01J65/04
Abstract: A light emitting sealed body includes: a housing containing light-emitting gas in an internal space and formed with an opening on which first light is incident and/or from which second light is emitted, wherein the first light is laser light for maintaining a plasma generated in the light-emitting gas and the second light is light from the plasma; and a window member that transmits the first light and/or the second light at the opening. The window member is joined to the housing by a joining material consisting of a material containing gold.
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2.发明授权公开(公告)号：US11664211B2
公开(公告)日：2023-05-30
申请号：US17956186
申请日：2022-09-29
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Akio Suzuki , Toru Fujita , Shinichi Ohba , Akinori Asai , Tomoya Nakazawa , Taiga Morimoto
CPC classification number: H01J61/26 , H01J61/16 , H01J65/042 , H01J61/12
Abstract: A light emitting sealed body includes: a housing containing light-emitting gas in an internal space; a first window portion which is provided to the housing and on which first light that is laser light for maintaining a plasma generated in the light-emitting gas is incident; a second window portion provided to the housing and from which second light that is light from the plasma is emitted; and a getter portion including a getter material and disposed in an irradiation region of the first light inside the housing.
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公开(公告)号：US11154206B2
公开(公告)日：2021-10-26
申请号：US15739906
申请日：2016-03-08
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Tomoya Nakazawa , Rui Sekine
IPC: A61B5/02 , A61B5/021 , A61B5/00 , A61B5/022 , A61B5/1455
Abstract: A viscoelastic characteristics acquisition device is a device that acquires viscoelastic characteristics of a blood vessel of an inspection target, and includes a pulse wave acquisition unit that acquires a time waveform corresponding to a volume pulse wave of the inspection target, a spectrum acquisition unit that acquires a volume pulse wave spectrum by performing Fourier transform on the time waveform, an input unit to which values corresponding to maximum blood pressure and minimum blood pressure of the inspection target are input, and an analysis unit that acquires the viscoelastic characteristics on the basis of the values corresponding to the maximum blood pressure and the minimum blood pressure and the volume pulse wave spectrum at a frequency equal to or higher than a frequency corresponding to the pulse of the inspection target.
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公开(公告)号：US11122996B2
公开(公告)日：2021-09-21
申请号：US16338550
申请日：2017-09-19
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Tomoya Nakazawa , Rui Sekine , Masato Kitabayashi , Anna Ienaka , Yu Hashimoto
IPC: A61B5/145 , A61B5/1455 , A61B5/00
Abstract: A blood glucose measurement device, a blood glucose calculation method, and a blood glucose calculation program capable of accurately measuring a blood glucose level by using light are provided. The blood glucose measurement device includes a light source 11 that outputs measurement light L1 to be input to a living body 50; a light detector 12 that detects the measurement light L1 propagated inside the living body 50 and generates a detection signal in accordance with an intensity of the measurement light L1; and a computation unit that obtains a time lag between a temporal change in a first parameter related to an oxygenated hemoglobin concentration and a temporal change in a second parameter related to a deoxygenated hemoglobin concentration based on the detection signal, and obtains the data related to the blood glucose level based on the time lag.
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Patent Agency Ranking
公开(公告)号：US11733464B2
公开(公告)日：2023-08-22
申请号：US17286601
申请日：2019-07-11
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Ryota Kakei , Shin Kato , Fumitsugu Fukuyo , Tomoya Nakazawa , Masaru Shimomaki , Shinichi Ohba , Yu Matsushiro
CPC classification number: G02B6/3803 , G02F1/3528 , G02F1/365
Abstract: A fiber structure includes first and second optical fibers disposed such that end portions thereof butt, a sheet-shaped saturable absorber including a carbon nanotube and disposed between the end portion of the first optical fiber and the end portion of the second optical fiber, and a housing internally accommodating the end portion of the first optical fiber and the end portion of the second optical fiber. A space in the housing including the saturable absorber is airtight.
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公开(公告)号：US11682548B2
公开(公告)日：2023-06-20
申请号：US17956130
申请日：2022-09-29
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Akio Suzuki , Toru Fujita , Shinichi Ohba , Akinori Asai , Tomoya Nakazawa , Taiga Morimoto
CPC classification number: H01J61/35 , H01J61/302 , H01J65/04
Abstract: A light emitting sealed body includes: a housing containing light-emitting gas in an internal space, on which laser light for maintaining a plasma generated in the light-emitting gas is incident; and a charging pipe including a first end portion and a second end portion and connected to the internal space at the first end portion. The second end portion of the charging pipe is sealed by being crushed. The second end portion of the charging pipe is covered with a covering member consists of an inorganic material. The covering member is covered with a cap member consists of a metal material.
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公开(公告)号：US11670497B2
公开(公告)日：2023-06-06
申请号：US17956237
申请日：2022-09-29
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Akio Suzuki , Toru Fujita , Shinichi Ohba , Akinori Asai , Tomoya Nakazawa , Taiga Morimoto
CPC classification number: H01J61/302 , H01J61/025 , H01J61/35 , H01J65/04
Abstract: A light emitting sealed body includes: a housing containing light-emitting gas in an internal space; a first window portion provided to the housing and on which first light that is laser light for maintaining a plasma generated in the light-emitting gas is incident; and a second window portion provided to the housing and from which second light that is light from the plasma is emitted. The second window portion includes a second window member made of a material containing diamond. A protective layer made of an inorganic material is formed at least on a surface of the second window member on a side of the internal space.
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公开(公告)号：US11089965B2
公开(公告)日：2021-08-17
申请号：US15778745
申请日：2016-03-30
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Tomoya Nakazawa , Rui Sekine
Abstract: A blood pressure information calculating device includes an input unit to which a waveform based on a pulse wave of the subject and reference blood pressure information serving as a reference for calculating the blood pressure information on the basis of the waveform based on the pulse wave are input, a conversion unit that calculates a phase spectrum of a waveform based on the pulse wave by performing Fourier transformation on the waveform based on the pulse wave, a calculation unit that calculates a correction value using at least one of a phase of a main wave corresponding to a pulse of the subject and a phase of a second harmonic wave of the main wave on the basis of the phase spectrum, and a calculation unit that calculates an average blood pressure by correcting the reference blood pressure information using the correction value.
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公开(公告)号：US10772513B2
公开(公告)日：2020-09-15
申请号：US15739864
申请日：2016-03-08
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Tomoya Nakazawa , Rui Sekine
Abstract: A blood pressure ratio calculation device is a device for calculating a maximum-minimum blood pressure ratio corresponding to a ratio between a maximum blood pressure value and a minimum blood pressure value of an inspection target, and includes an input unit for inputting a relative blood pressure waveform corresponding to temporal change in relative blood pressure of the inspection target, a spectrum generation unit for generating a relative blood pressure waveform spectrum by performing Fourier transform on the relative blood pressure waveform, and an analysis unit for calculating the maximum-minimum blood pressure ratio on the basis of the relative blood pressure waveform spectrum.
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