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公开(公告)号：US12059819B2
公开(公告)日：2024-08-13
申请号：US17076328
申请日：2020-10-21
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kanako Oshima , Nobuhiro Yasui , Hisato Yabuta , Makoto Kubota , Yoshinori Kotani , Yoshihiro Ohashi
IPC: B33Y10/00 , B28B1/00 , B28B11/04 , B33Y40/20 , B33Y70/00 , B33Y80/00 , C04B35/119 , C04B35/14 , C04B35/628 , C04B35/632 , C04B35/64 , C04B35/653
CPC classification number: B28B1/001 , B28B11/048 , B33Y10/00 , B33Y40/20 , B33Y70/00 , B33Y80/00 , C04B35/119 , C04B35/14 , C04B35/62886 , C04B35/632 , C04B35/64 , C04B35/653 , C04B2235/3217 , C04B2235/3222 , C04B2235/3224 , C04B2235/3244 , C04B2235/3418 , C04B2235/5436 , C04B2235/6026 , C04B2235/616 , C04B2235/665
Abstract: Provided are a method of manufacturing a ceramic article in which the improvement of mechanical strength, wear resistance, and machinability is achieved using a direct modeling system, and a ceramic article. The manufacturing method includes the steps of: (i) arranging powder containing ceramics as a main component on a base; (ii) irradiating a part or an entirety of the arranged powder with an energy beam to melt and solidify the powder, to thereby obtain an intermediate modeled article; (iii) causing the modeled article to absorb a metal component-containing liquid to impregnate the modeled article therewith; and (iv) subjecting the modeled article having absorbed the metal component-containing liquid to heat treatment.
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公开(公告)号：US11774605B2
公开(公告)日：2023-10-03
申请号：US17584194
申请日：2022-01-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiroshi Saito , Nobuhiro Yasui , Yoshihiro Ohashi , Yoshinori Kotani , Satoshi Yamabi
IPC: G01T1/20
CPC classification number: G01T1/2002 , G01T1/2006
Abstract: A scintillator unit that can reduce crosstalk when the scintillator unit includes a plurality of scintillators and a radiation detector are provided. More specifically, a scintillator unit includes a reflective layer between a plurality of scintillators and the plurality of scintillators, wherein an adhesive layer and a low-refractive-index layer with a lower refractive index than the adhesive layer are located in this order on the scintillators between the scintillators and the reflective layer.
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3.发明申请公开(公告)号：US20230021311A1
公开(公告)日：2023-01-26
申请号：US17932823
申请日：2022-09-16
Applicant: CANON KABUSHIKI KAISHA
Inventor： Nobuhiro Yasui , Hisato Yabuta , Kanako Oshima , Hiroshi Saito , Yoshihiro Ohashi , Makoto Kubota , Akira Uebayashi
IPC: C04B35/50 , C04B35/106 , C04B35/14
Abstract: Provided are a powder for laser manufacturing which can be stably manufactured and from which a three-dimensional manufactured object ensuring a manufacturing accuracy can be obtained and a using method thereof. A powder for ceramic manufacturing for obtaining a manufactured object by repeatedly sintering or fusing and solidifying in sequence a powder in an irradiation portion with laser light, in which the powder includes a plurality of compositions, at least one composition of the compositions is an absorber that relatively strongly absorbs the laser light compared to other compositions, and at least a part of the absorber changes to a different composition that relatively weakly absorbs the laser light by irradiation with the laser light and a using method of a powder in which the powder is used.
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公开(公告)号：US11440850B2
公开(公告)日：2022-09-13
申请号：US16936761
申请日：2020-07-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Nobuhiro Yasui , Hisato Yabuta , Kanako Oshima
IPC: C04B35/582 , C04B35/5835 , C04B35/596 , C04B35/58 , B33Y80/00 , C04B35/64 , B28B1/00 , B33Y70/00 , B33Y10/00 , C04B35/653 , C04B35/117 , G03F1/00 , C04B35/581 , C04B35/50 , B22F10/20
Abstract: A material powder for additive modeling including a nitride, and a eutectic oxide, the nitride having an average density lower than an average density of the eutectic oxide, is used to produce a structure using an additive modeling method.
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公开(公告)号：US20220227021A1
公开(公告)日：2022-07-21
申请号：US17715813
申请日：2022-04-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Shunsuke Murakami , Yasushi Shimizu , Nobuhiro Yasui , Kanako Oshima
Abstract: (i) a step of disposing a powder that includes an absorber absorbing light of a wavelength included in a laser beam to be irradiated and silicon dioxide as a main component; (ii) a step of sintering or melting and solidifying the powder by irradiating the powder with a laser beam; and (iii) a step of heat-treating a shaped object formed by repeating the steps (i) and (ii) at 1470° C. or more and less than 1730° C.
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Patent Agency Ranking
公开(公告)号：US20210292240A1
公开(公告)日：2021-09-23
申请号：US17340278
申请日：2021-06-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiroshi Saito , Yasuhiro Sekine , Nobuhiro Yasui , Kanako Oshima
IPC: C04B35/119 , B33Y10/00 , B33Y70/00 , B28B1/00 , C04B35/117 , C04B35/49 , C04B35/491 , C04B35/14 , C04B35/468 , C04B35/64 , C04B35/63
Abstract: To achieve local melting of an inorganic material powder containing an inorganic material as a main component in an additive manufacturing technology, to thereby achieve high shaping accuracy. Provided is an inorganic material powder to be used in an additive manufacturing method involving performing shaping through irradiation with laser light, the inorganic material powder including: a base material that is an inorganic material; and an absorber, wherein the absorber has a higher light-absorbing ability than the base material for light having a wavelength included in the laser light, and contains any one of Ti2O3, TiO, SiO, ZnO, antimony-doped tin oxide (ATO), and indium-doped tin oxide (ITO), or contains any one of a transition metal carbide, a transition metal nitride, Si3N4, AlN, a boride, and a silicide.
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公开(公告)号：US10371649B2
公开(公告)日：2019-08-06
申请号：US15491161
申请日：2017-04-19
Applicant: CANON KABUSHIKI KAISHA
Inventor： Nobuhiro Yasui , Yoshihiro Ohashi , Toru Den
Abstract: A radiation phase change detection method includes: arranging a two-dimensional optical image pickup element, which includes a scintillator, so that, when a period of a self-image generated through a phase grating is defined as D1, and a pixel pitch of the two-dimensional optical image pickup element is defined as D2=kD1, k falls in a range of ½
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公开(公告)号：US09885791B2
公开(公告)日：2018-02-06
申请号：US14193423
申请日：2014-02-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Nobuhiro Yasui , Yoshinori Shibutani , Yoshihiro Ohashi , Toru Den
CPC classification number: G01T1/2002 , G01T1/202
Abstract: In a related-art composite scintillator in which pores in a porous scintillator are filled with an absorbing member or the like, as the ratio between the structural period of the composite and the thickness in an optical waveguide direction becomes smaller, almost all light is absorbed, and, in some cases, it is difficult to obtain a sufficient light amount for forming an adequate image. Provided is a scintillator including multiple first phases having directionality in a direction connecting two surfaces thereof which are not located on same surface and a second phase positioned around the first phases, in which each of the multiple first phases is in the shape of a column, and an absorbing portion is provided in part of one of the two kinds of phases, which has a lower refractive index.
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公开(公告)号：US20160154123A1
公开(公告)日：2016-06-02
申请号：US14947728
申请日：2015-11-20
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshihiro Ohashi , Nobuhiro Yasui , Toru Den
CPC classification number: G01T1/2023 , G01T1/2008
Abstract: A scintillator crystal includes a plurality of first crystal phases, and a second crystal phase covering respective side surfaces of the first crystal phases. Each of the plurality of first crystal phases is a columnar crystal that includes a perovskite type oxide material containing both Gd and Tb, and emits light by being excited by radiation. The second crystal phase includes alumina. Assuming that a, b, and c respectively represent Gd, Al, and Tb in an element ratio among them that are contained in a total amount of substance of the scintillator crystal, the element ratio is within a range defined by (a, b, c)=(0.174, 0.795, 0.031), (0.207, 0.756, 0.037), (0.213, 0.775, 0.012), and (0.194, 0.795, 0.011) as vertexes in a ternary composition diagram.
Abstract translation: 闪烁体晶体包括多个第一晶相，以及覆盖第一晶相的相应侧表面的第二晶相。 多个第一结晶相中的每一个都是包含含有Gd和Tb的钙钛矿型氧化物材料并通过被辐射激发而发光的柱状晶体。 第二结晶相包括氧化铝。 假设a，b，c分别表示包含在闪烁器晶体的物质总量中的元素比例的Gd，Al，Tb，元素比在（a，b， c）=（0.174,0.795,0.031），（0.207,0.756,0.037），（0.213,0.775,0.012）和（0.194,0.795,0.011）作为三元组成图中的顶点。
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公开(公告)号：US20150090886A1
公开(公告)日：2015-04-02
申请号：US14497129
申请日：2014-09-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryoko Ueyama , Nobuhiro Yasui , Toru Den
Abstract: A scintillator crystal includes a plurality of first crystal phases and a second crystal phase located around the plurality of the first crystal phases, in which each of the plurality of the first crystal phases contains a sulfate, the second crystal phase contains an alkali halide that emits light by irradiation with radiation, and the refractive index of each of the first crystal phases is lower than the refractive index of the second crystal phase.
Abstract translation: 闪烁体晶体包括多个第一晶相和位于多个第一晶相周围的第二晶相，其中多个第一晶相中的每一个含有硫酸根，第二晶相含有发射的碱金属卤化物 并且每个第一结晶相的折射率低于第二结晶相的折射率。
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