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公开(公告)号：US20200094430A1
公开(公告)日：2020-03-26
申请号：US16574477
申请日：2019-09-18
Applicant: Dexerials Corporation
Inventor： Kazuhiko NODA , Katsuhiro DOI , Asahiko NOGAMI , Kyoko SAKURAI
Abstract: A new and improved microfabrication device, microfabrication method, transfer mold, and transfer object that can suppress a defect are provided. A microfabrication device comprises a tool mounting portion, a predetermined cutting tool, an oscillator, and a controller, wherein the controller performs a cutting process to satisfy at least one of: a cutting condition (1) that oscillations at a start point and an end point of each set are in phase with each other; and a cutting condition (2) that oscillations of the sets are in phase with each other.
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公开(公告)号：US20220347879A1
公开(公告)日：2022-11-03
申请号：US17812445
申请日：2022-07-14
Applicant: Dexerials Corporation
Inventor： Kazuhiko NODA , Katsuhiro DOI , Asahiko NOGAMI , Kyoko SAKURAI
Abstract: A transfer mold comprises a substrate having one or more fine concave portions formed on a surface thereof. At least one of a sidewall and a bottom of each fine concave portion has an oscillation waveform satisfying at least one of the following oscillation waveform conditions: (1) the oscillation waveform is continuous; (2) the oscillation waveform is a composite waveform of a plurality of oscillation waveforms, and the plurality of oscillation waveforms are in phase with each other; (3) fine concave portions of a plurality of rows are formed on the substrate, and oscillation waveforms of adjacent fine concave portions are in phase with each other; and (4) fine concave portions of a plurality of rows are formed on the substrate, and oscillation waveforms of the fine concave portions are in phase with each other for every two pitches.
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公开(公告)号：US20220162035A1
公开(公告)日：2022-05-26
申请号：US17599094
申请日：2020-03-31
Applicant: DEXERIALS CORPORATION
Inventor： Hiroki TAMANO , Katsuhiro DOI , Kazuhiko NODA , Tomohisa KAWAI
Abstract: A laminated film, including an adhesive layer peelably laminated on a base film, and a carrier film overlapping each other are passed between a bladed roller including a plurality of disk-shaped slitting blades arranged at a pitch of 0.5 mm or less and an anvil roller with the laminated film on the bladed roller side to slit the laminated film by score cutting. The slitting blades have a blade angle of 30° or less. By doing so, the laminated film including the adhesive layer peelably laminated on the base film is silt to have a tape width of 0.5 mm or less in such a way that the base film and the adhesive layer do not peel apart and the protrusion of the adhesive layer is suppressed.
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公开(公告)号：US20210382214A1
公开(公告)日：2021-12-09
申请号：US17286884
申请日：2019-10-23
Applicant: Dexerials Corporation
Inventor： Shunichi KAJIYA , Hiroshi TAZAWA , Kazuhiko NODA , Kyoko SAKURAI
IPC: G02B5/22
Abstract: Provided is an optical filter having different color correction effects for specific wavelength regions depending on the angle of incident light. The optical filter includes a transmission portion transmitting light and an absorption portion absorbing light between a plane of incidence and a plane of emission, and the volume of the transmission portion is larger than the volume of the absorption portion. For the optical filter, when the transmission spectrum S0 of light incident at 0° and the transmission spectrum S60 of light incident at 60° are superimposed, the transmittance (%) at 60° is lower than the transmittance (%) at 0° by 15% or more for a first wavelength band, and the difference between the transmittance (%) at 60° and the transmittance (%) at 0° is lower by 10% or more less for a second wavelength band.
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公开(公告)号：US20250042078A1
公开(公告)日：2025-02-06
申请号：US18919433
申请日：2024-10-18
Applicant: Dexerials Corporation
Inventor： Katsuhiro DOI , Kazuhiko NODA
Abstract: Provided is a manufacturing method for a roll mold. The method includes performing a process of forming a linear groove on an outer peripheral surface of a roll base material in a roll axial direction or a direction inclined with respect to the roll axial direction n times, where n is 800 or more. A total of m linear grooves of 1st to mth linear grooves are formed at respective positions that are made up of a position of 0 degrees and at least one position shifted a multiple of (360/m) degrees from the position of 0 degrees, the position of 0 degrees being any position on the outer peripheral surface of the roll base material. In the subsequent cutting processes, linear grooves are formed at respective positions shifted from the positions of the 1st to mth linear grooves in a predetermined direction.
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Patent Agency Ranking
公开(公告)号：US20240269756A1
公开(公告)日：2024-08-15
申请号：US18567121
申请日：2022-05-27
Applicant: Dexerials Corporation
Inventor： Kazuhiko NODA , Katsuhiro DOI , Junichi SASAKI , Asahiko NOGAMI , Kyoko SAKURAI
CPC classification number: B23C3/02 , B29C33/3842 , B29C59/046 , B29K2033/04 , B29L2011/0016
Abstract: A roll manufacturing apparatus includes a rotary device including a rotary encoder, a cutting tool stage that holds a spindle unit, which includes a rotatable cutting blade, reciprocatably in a radial direction of a roll and is movable in the radial direction of the roll, a signal generator that generates, based on signals output from the rotary encoder, a control waveform indicating a movement pattern to reciprocate the cutting blade at positions corresponding to predetermined cutting portions, and a controller that moves the cutting tool stage so that a cutting process of reciprocating the cutting blade in the radial direction of the roll while rotating the cutting blade, according to the control waveform, to perform cutting once or multiple times with the cutting blade at a predetermined cutting depth is performed multiple times.
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公开(公告)号：US20200241186A1
公开(公告)日：2020-07-30
申请号：US16753161
申请日：2018-10-02
Applicant: Dexerials Corporation
Inventor： Eiji OHTA , Tsutomu NAGAHAMA , Shigehisa OHKAWARA , Tatsuya HARIMARA , Katsuhiro DOI , Kazuhiko NODA , Akihiro SHIBATA , Kazuo GOTO , Yasuyuki KUDO
Abstract: An optical body including: a first optical layer which has a surface having a convex profile in which a plurality of one-directionally extending elongated convex portions are one-dimensionally aligned in one direction; an inorganic layer disposed on the surface of the first optical layer on a side having the convex profile and a second optical layer disposed on a side of the inorganic layer so that the convex profile is embedded; wherein the convex profile meets at least one of the following (1) to (4): (1) a height varies in an extending direction in each of the elongated convex portions, (2) a ridge portion meanders in a direction perpendicular to both the extending direction and a height direction of the convex portion in each of the elongated convex portions, (3) heights of the elongated convex portions adjacent to each other are different from each other, and (4) a triangular prism-shaped convex portion and an elongated convex portion having a curved surface are adjacent to each other.
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公开(公告)号：US20240139822A1
公开(公告)日：2024-05-02
申请号：US18548261
申请日：2022-03-25
Applicant: Dexerials Corporation
Inventor： Katsuhiro DOI , Kazuhiko NODA
IPC: B23B1/00
CPC classification number: B23B1/00
Abstract: A roll mold manufacturing method using a roll mold manufacturing apparatus, the apparatus comprising a rotary device configured to rotate a roll base material having either a tubular shape or a circular-column shape, and a predetermined machining stage comprising multiple cutting blades, the method comprising: a P cutting step of cutting a roll base material surface with a P cutting blade on the machining stage while moving the machining stage in a direction of an orientation P along the roll length direction; subsequently a step of switching from the P cutting blade to an N cutting blade on the machining stage; and subsequently an N cutting step of cutting the roll base material surface with the N cutting blade on the machining stage while moving the machining stage in a direction of another orientation N along the roll length direction.
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9.发明公开公开(公告)号：US20230384490A1
公开(公告)日：2023-11-30
申请号：US18030914
申请日：2021-12-14
Applicant: DEXERIALS CORPORATION
Inventor： Mitsuo ARIMA , Masayuki ISHIWATA , Kazuhiko NODA , Shunsuke KANASUGI
IPC: G02B5/02
CPC classification number: G02B5/0215 , G02B5/0278
Abstract: Spectral noise produced by a diffraction phenomenon of a periodic structure can be reduced to improve homogeneity of intensity of straight diffusion light, and noise of zero-order diffraction light is reduced to improve light distribution properties as well. A diffusion plate 1 of a microlens array type that emits straight diffusion light includes a base material 10, and a plurality of cylindrical lenses 21 arranged in an X direction on an X-Y plane of the base material 10 and composed of elongated convex portions or elongated concave portions extending in a Y direction. An aperture width D and a radius of curvature R in the X direction of each of the cylindrical lenses 21 are randomly varied within variation ranges defined by variation full width rates δD and δR, respectively, using a reference aperture width Dk and a reference radius of curvature Rk as references, and an off-center amount Ec of each of the cylindrical lenses 21 is randomly vaned within a variation range defined by a variation full width rate δEc, where δD, δR, and δEc satisfy Expression (1), and at least either δD or δR is not 0%.
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公开(公告)号：US20230126879A1
公开(公告)日：2023-04-27
申请号：US17907671
申请日：2021-04-05
Applicant: Dexerials Corporation
Inventor： Katsuhiro DOI , Kazuhiko NODA
IPC: B29C33/42
Abstract: Provided is a roll mold that has a plurality of linear grooves arranged side by side on its outer peripheral surface and in which an optical step between adjacent linear grooves is sufficiently small. A roll mold comprising, on an outer peripheral surface thereof, n linear grooves extending in a roll axial direction or a direction inclined with respect to the roll axial direction and arranged side by side, where n is 800 or more, wherein the n linear grooves are arranged in a manner that a gradual decrease and a gradual increase in groove depth are repeated, and the number of points at which a transition from the decrease to the increase in groove depth occurs is m or less, where m is selected from 2 to 8.
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