Patents by Inventor Naoyuki Matsuo
Naoyuki Matsuo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240052207Abstract: An optical stack includes: a first optical sheet having a first principal face with a concavo-convex structure and a second principal face at an opposite side from the first principal face; and an adhesive layer that is disposed on the first principal face of the first optical sheet. The concavo-convex structure includes a plurality of dents and flat portions between adjacent ones of the plurality of dents. The adhesive layer is in contact with the flat portions. A surface of the adhesive layer and the first principal face of the first optical sheet together define an internal space within each of the plurality of dents. In a plan view from a normal direction of the first principal face of the first optical sheet, an area ratio of air voids existing at interfaces between the flat portions and the adhesive layer to an area of the first optical sheet is 3% or less.Type: ApplicationFiled: February 4, 2022Publication date: February 15, 2024Applicant: NITTO DENKO CORPORATIONInventors: Shunya WAKAYAMA, Shigeyoshi KIRIBE, Naoyuki MATSUO
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Patent number: 11820114Abstract: The present invention provides a method for producing a porous silicone sheet comprising a freezing step of freezing a wet gel of a porous silicone body having communicating pores and a three-dimensional network silicone skeleton which forms the pores and which is formed by a copolymerization of a bifunctional alkoxysilane and a trifunctional alkoxysilane, to obtain a frozen body, a sheet forming step of forming the frozen body into a sheet to obtain a porous silicone sheet, and a cleaning step of cleaning the porous silicone sheet. According to the method of the present invention, a porous silicone body from which impurities have been sufficiently removed can be produced. In the course of the production, occurrence of fracture of a wet gel can be effectively prevented.Type: GrantFiled: April 8, 2021Date of Patent: November 21, 2023Assignee: NITTO DENKO CORPORATIONInventor: Naoyuki Matsuo
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Publication number: 20230341608Abstract: An optical member that functions as an optical coupling layer has a first layer having a porous structure, and a second layer contacting a first main surface of the first layer. The second layer includes a resin composition, and has a transmittance of 5% to 85% with regard to a first light that is within the wavelength range of greater than 800 nm and less than or equal to 2000 nm. The first layer includes a first region having the porous structure, and a second region in which pores of the porous structure are filled with a resin composition.Type: ApplicationFiled: September 24, 2021Publication date: October 26, 2023Applicant: NITTO DENKO CORPORATIONInventors: Naoyuki MATSUO, Takahiro YOSHIKAWA
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Publication number: 20220315472Abstract: A method is disclosed for dividing a composite material in which a brittle material layer and a resin layer are laminated, including: a resin removing step of irradiating the resin layer with a laser beam oscillated from a first laser source along a scheduled dividing line of the composite material to form a processing groove along the scheduled dividing line; a brittle material removing step of irradiating the brittle material layer with a laser beam oscillated from an ultrashort pulsed laser source along the scheduled dividing line to form a processing mark along the scheduled dividing line; and a brittle material layer dividing step of generating thermal stress in the brittle material layer by irradiating the brittle material layer with a laser beam oscillated from a second laser source from the opposite side to the resin layer to thereby divide the brittle material layer.Type: ApplicationFiled: February 19, 2020Publication date: October 6, 2022Applicant: NITTO DENKO CORPORATIONInventors: Toshihiro Kanno, Satoshi Hirata, Kota Nakai, Naoyuki Matsuo
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Publication number: 20220259092Abstract: A method is disclosed for dividing a composite material in which a brittle material layer and a resin layer are laminated, including: irradiating the resin layer with a laser beam L1 oscillated from a CO2 laser source along scheduled dividing lines DL of the composite material to form a processing groove along the scheduled dividing lines; and irradiating the brittle material layer with a laser beam L2 oscillated from an ultrashort pulsed laser source along the scheduled dividing lines to form a processing mark along the scheduled dividing lines. In the resin removing step, in a region IS where the scheduled dividing lines intersect, the laser beam oscillated from the CO2 laser source is not irradiated multiple times, or an irradiation amount of the laser beam is decreased relative to an irradiation amount in a region other than a region where the scheduled dividing lines intersect.Type: ApplicationFiled: February 19, 2020Publication date: August 18, 2022Applicant: NITTO DENKO CORPORATIONInventors: Toshihiro Kanno, Takahiro Shinozaki, Kota Nakai, Naoyuki Matsuo
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Publication number: 20210221111Abstract: The present invention provides a method for producing a porous silicone sheet comprising a freezing step of freezing a wet gel of a porous silicone body having communicating pores and a three-dimensional network silicone skeleton which forms the pores and which is formed by a copolymerization of a bifunctional alkoxysilane and a trifunctional alkoxysilane, to obtain a frozen body, a sheet forming step of forming the frozen body into a sheet to obtain a porous silicone sheet, and a cleaning step of cleaning the porous silicone sheet. According to the method of the present invention, a porous silicone body from which impurities have been sufficiently removed can be produced. In the course of the production, occurrence of fracture of a wet gel can be effectively prevented.Type: ApplicationFiled: April 8, 2021Publication date: July 22, 2021Applicant: NITTO DENKO CORPORATIONInventor: Naoyuki MATSUO
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Publication number: 20200368846Abstract: A laser processing method for a long film is disclosed which has high productivity. A laser processing method according to the present invention includes a process of cutting a long film F by irradiating the long film F with a laser beam L while scanning the laser beam L by a deflecting operation of a galvanometer scanner 13 and while continuously conveying the long film F in the longitudinal direction. The control device 3 controls the deflecting operation of the galvanometer scanner 13 based on a desired cutting shape of the long film F set in advance and a conveying speed of the long film F that is calculated using a rotary encoder 2.Type: ApplicationFiled: November 27, 2018Publication date: November 26, 2020Applicant: NITTO DENKO CORPORATIONInventor: Naoyuki Matsuo
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Publication number: 20200353567Abstract: A method is disclosed for dividing a composite material in which a brittle material layer and a resin layer are laminated, including radiating a laser light oscillated from a CO2 laser source to the resin layer along the scheduled dividing line of the composite material and thereby forming a processed groove along the scheduled dividing line; radiating a laser light oscillated from an ultrashort pulse laser source to the brittle material layer along the scheduled dividing line and thereby forming a processing mark along the scheduled dividing line; and dividing the composite material by applying an external force along the scheduled dividing line. The method is characterized in that the processing mark to be formed is perforated through holes along the scheduled dividing line, and the pitch of the through holes is 10 ?m or less.Type: ApplicationFiled: January 7, 2019Publication date: November 12, 2020Applicant: NITTO DENKO CORPORATIONInventor: Naoyuki Matsuo
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Publication number: 20200353563Abstract: A laser processing method is disclosed which is capable of easily reducing contamination on a plastic film surface, and also capable of cutting a plastic film in a free-form shape. A laser processing method includes a process of pulsing a laser beam L having a wavelength in the infrared region from a laser beam source 1 and causing a plastic film F to be irradiated with the laser beam L to cut the plastic film. The peak energy density of the laser beam with which the plastic film is irradiated is 70 J/cm2 or more and 270 J/cm2 or less.Type: ApplicationFiled: November 26, 2018Publication date: November 12, 2020Applicant: NITTO DENKO CORPORATIONInventor: Naoyuki Matsuo
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Patent number: 10679598Abstract: A polymer resin film of the present disclosure has a plurality of through holes extending through the thickness of the polymer resin film. The through holes penetrate a substrate structure of the resin film. The through holes have openings formed in both a first principal surface and a second principal surface of the film. The through holes have a shape in which the area of a cross-section perpendicular to a direction in which the through holes extend is constant from the first principal surface of the film to the second principal surface of the film or increases from the first principal surface toward the second principal surface. The openings in the first principal surface have a diameter of 3 ?m or more and 80 ?m or less. A variation in a porosity defined by the openings in the first principal surface is 10% or less.Type: GrantFiled: April 26, 2016Date of Patent: June 9, 2020Assignee: NITTO DENKO CORPORATIONInventors: Naoyuki Matsuo, Satoru Furuyama
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Patent number: 10640623Abstract: According to the present invention, there are provided a porous body comprising a porous silicone substrate having communicating pores and a three-dimensional network silicone skeleton which forms the pores and which is formed by a copolymerization of a bifunctional alkoxysilane and a trifunctional alkoxysilane, and a polymeric cover material covering at least a part of a surface of the silicone skeleton, and an a method for producing the porous body. The porous body of the present invention has high flexibility and is strong to tension.Type: GrantFiled: March 30, 2016Date of Patent: May 5, 2020Assignee: NITTO DENKO CORPORATIONInventors: Kenjiro Saomoto, Naoyuki Matsuo
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Patent number: 10424452Abstract: An operation coil drive device includes a drive control unit to perform control to set, for a semiconductor switching element to switch on and off the source voltage applied to an operation coil of a magnetic contactor, a larger ON/OFF time ratio for a circuit-closing control and a smaller ON/OFF time ratio for a holding control, wherein the drive control unit includes: a circuit-closing-control inductance calculation unit to calculate an inductance of the operation coil immediately after a start of the circuit-closing control; a circuit-closing-control resistance value calculation unit to calculate a direct current resistance value of the operation coil based on the calculation result; and a circuit-closing-control switching correction unit to correct the ON/OFF time ratio of the semiconductor switching element for the circuit-closing control based on the calculation result.Type: GrantFiled: February 20, 2018Date of Patent: September 24, 2019Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Naoyuki Matsuo, Takahiro Taguchi, Masahiro Motonobu, Takashi Tsutsumi
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Patent number: 10262824Abstract: Operation coil drive device of electromagnetic contactor includes current detector and drive controller. The detector, when switching control is performed on operation coils of the contactor, detects coil current flowing through the coils. The controller controls an on/off time ratio of a semiconductor switching element wherein the on/off time ratio during close circuit control becomes larger than the on/off time ratio during holding control. Power supply voltage is switchingly applied to the coils at the on/off time ratio. The controller includes a determination locus setter and a close circuit state determiner. The setter sets a determination locus that continuously increases along a change locus of detected coil current during close circuit control. The determiner determines a contact point close circuit state by contact of a movable contact to a fixed contact based on deviation between the determination locus by the setter and the detected coil current detected.Type: GrantFiled: March 28, 2018Date of Patent: April 16, 2019Assignee: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Naoyuki Matsuo, Akira Morita, Takahiro Taguchi, Kosuke Ishibashi
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Publication number: 20180315409Abstract: A polymer resin film of the present disclosure has a plurality of through holes extending through the thickness of the polymer resin film. The through holes penetrate a substrate structure of the resin film. The through holes have openings formed in both a first principal surface and a second principal surface of the film. The through holes have a shape in which the area of a cross-section perpendicular to a direction in which the through holes extend is constant from the first principal surface of the film to the second principal surface of the film or increases from the first principal surface toward the second principal surface. The openings in the first principal surface have a diameter of 3 ?m or more and 80 ?m or less. A variation in a porosity defined by the openings in the first principal surface is 10% or less.Type: ApplicationFiled: April 26, 2016Publication date: November 1, 2018Applicant: NITTO DENKO CORPORATIONInventors: Naoyuki MATSUO, Satoru FURUYAMA
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Publication number: 20180218862Abstract: Operation coil drive device of electromagnetic contactor includes current detector and drive controller. The detector, when switching control is performed on operation coils of the contactor, detects coil current flowing through the coils. The controller controls an on/off time ratio of a semiconductor switching element wherein the on/off time ratio during close circuit control becomes larger than the on/off time ratio during holding control. Power supply voltage is switchingly applied to the coils at the on/off time ratio. The controller includes a determination locus setter and a close circuit state determiner. The setter sets a determination locus that continuously increases along a change locus of detected coil current during close circuit control. The determiner determines a contact point close circuit state by contact of a movable contact to a fixed contact based on deviation between the determination locus by the setter and the detected coil current detected.Type: ApplicationFiled: March 28, 2018Publication date: August 2, 2018Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Naoyuki MATSUO, Akira Morita, Takahiro Taguchi, Kosuke Ishibashi
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Publication number: 20180174786Abstract: An operation coil drive device includes a drive control unit to perform control to set, for a semiconductor switching element to switch on and off the source voltage applied to an operation coil of a magnetic contactor, a larger ON/OFF time ratio for a circuit-closing control and a smaller ON/OFF time ratio for a holding control, wherein the drive control unit includes: a circuit-closing-control inductance calculation unit to calculate an inductance of the operation coil immediately after a start of the circuit-closing control; a circuit-closing-control resistance value calculation unit to calculate a direct current resistance value of the operation coil based on the calculation result; and a circuit-closing-control switching correction unit to correct the ON/OFF time ratio of the semiconductor switching element for the circuit-closing control based on the calculation result.Type: ApplicationFiled: February 20, 2018Publication date: June 21, 2018Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Naoyuki MATSUO, Takahiro TAGUCHI, Masahiro MOTONOBU, Takashi TSUTSUMI
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Publication number: 20180086891Abstract: According to the present invention, there are provided a porous body comprising a porous silicone substrate having communicating pores and a three-dimensional network silicone skeleton which forms the pores and which is formed by a copolymerization of a bifunctional alkoxysilane and a trifunctional alkoxysilane, and a polymeric cover material covering at least a part of a surface of the silicone skeleton, and an a method for producing the porous body. The porous body of the present invention has high flexibility and is strong to tension.Type: ApplicationFiled: March 30, 2016Publication date: March 29, 2018Applicant: NITTO DENKO CORPORATIONInventors: Kenjiro SAOMOTO, Naoyuki MATSUO
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Publication number: 20180072031Abstract: The present invention provides a method for producing a porous silicone sheet comprising a freezing step of freezing a wet gel of a porous silicone body having communicating pores and a three-dimensional network silicone skeleton which forms the pores and which is formed by a copolymerization of a bifunctional alkoxysilane and a trifunctional alkoxysilane, to obtain a frozen body, a sheet forming step of forming the frozen body into a sheet to obtain a porous silicone sheet, and a cleaning step of cleaning the porous silicone sheet. According to the method of the present invention, a porous silicone body from which impurities have been sufficiently removed can be produced. In the course of the production, occurrence of fracture of a wet gel can be effectively prevented.Type: ApplicationFiled: April 12, 2016Publication date: March 15, 2018Applicant: NITTO DENKO CORPORATIONInventor: Naoyuki MATSUO
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Publication number: 20170298204Abstract: The present invention relates to a porous silicone body having communicating pores and a three-dimensional network silicone skeleton that forms the pores, wherein the silicone skeleton is formed by polymerization of a bifunctional alkoxysilane and a trifunctional alkoxysilane, and the proportion of unreacted parts in the silicone skeleton is 10 mol % or less. The porous silicone body of the present invention has high flexibility and high heat resistance, and further has excellent recoverability of heat-resistant cushioning properties.Type: ApplicationFiled: September 25, 2015Publication date: October 19, 2017Applicant: NITTO DENKO CORPORATIONInventor: Naoyuki MATSUO
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Patent number: 9566663Abstract: There is provided a laser beam processing method in which generation of foreign substances from cut can be suppressed and contamination of a surface of a work can be decreased when performing the processing method using a laser beam on the work made of a polymer material, and a laser processed product. Further, the present invention is to provide a laser beam processing apparatus that is used in the laser beam processing method. The present invention relates to a laser beam processing method for processing the work made of a polymer material using a laser beam, wherein the work is irradiated with a laser beam in a state that the optical axis of the laser beam is tilted in the advancing direction of processing by a prescribed angle with respect to the vertical direction of the work.Type: GrantFiled: June 5, 2008Date of Patent: February 14, 2017Assignee: NITTO DENKO CORPORATIONInventors: Kanji Nishida, Naoyuki Matsuo, Atsushi Hino