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公开(公告)号：US20220110217A1
公开(公告)日：2022-04-07
申请号：US17426446
申请日：2020-01-24
Applicant: DEXERIALS CORPORATION
Inventor： Akihiro SHIBATA , Masahiro NISHIMOTO , Yusuke TANAKA , Hirokazu ODAGIRI , Katsuhiro DOI
Abstract: To prevent defects in microparticles from occurring in a case of arraying the microparticles having a diameter of less than or equal to 50 μm on a base material. Provided is a microparticle arraying mask for arraying microparticles having a diameter of less than or equal to 50 μm on a base material. The microparticle arraying mask has through-holes into which the microparticles are inserted. An opening plane of the through-holes on a microparticle supply side has an area smaller than an area of an opening plane of the through-holes on a microparticle discharge side. In a case of assuming that a direction from the opening plane on the microparticle supply side to the opening plane on the microparticle discharge side is a positive direction of a z-axis, and a sectional area of the through-holes vertical to the z-axis is A, dA(z)/dz>0 holds in a whole region in the through-holes along the z-axis, and Expression (1) below is satisfied: 0.4≤t/d≤1.0 (1).
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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：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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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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公开(公告)号：US20210191024A1
公开(公告)日：2021-06-24
申请号：US16077800
申请日：2017-03-23
Applicant: DEXERIALS CORPORATION
Inventor： Shunichi KAJIYA , Kyoko SAKURAI , Katsuhiro DOI , Kazuya HAYASHIBE , Naoki HANASHIMA , Naoto KANEKO
Abstract: There is provided a light emitting device that can be used as a light guide plate and has an excellent antireflection function to extraneous light, and an optical body includes: a base material; a macro concave-convex structure that is formed on one surface of the base material and emits internally propagating light that is injected in an inside of the base material from a side surface of the base material, from another surface of the base material; and a micro concave-convex structure formed periodically to follow each of both surfaces of the base material and a surface of the macro concave-convex structure, and having an average period of concavity and convexity of less than or equal to a wavelength of visible light. The surface of the macro concave-convex structure has an inclined surface, and an arrangement of the micro concave-convex structure is a zigzag arrangement.
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Patent Agency Ranking
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：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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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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