Patents by Inventor Kento Sakurai
Kento Sakurai 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: 20240096305Abstract: A vibration device includes: a glass vibration plate including a plurality of glass plates being laminated, and a solid-phase intermediate layer between at least a pair of the glass plates among the glass plates; a vibrator fixed to the glass vibration plate and configured to vibrate the glass vibration plate, in which the glass vibration plate includes a temperature adjustment unit configured to adjust a temperature of the intermediate layer.Type: ApplicationFiled: November 15, 2023Publication date: March 21, 2024Applicant: AGC Inc.Inventors: Jun AKIYAMA, Kento SAKURAI, Daisuke UCHIDA, Ken FUJITA
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Patent number: 11856381Abstract: A vibration device includes: a glass diaphragm; an exciter which is fixed to the glass diaphragm and vibrates the glass diaphragm; an enclosing member which defines an internal space by enclosing a portion, including a fixing position of the exciter, of the glass diaphragm, one end portion of the glass diaphragm being exposed to outside the internal space through an opening of the internal space; and a shielding member for acoustic shielding between the opening and the glass diaphragm, the shielding member dividing the glass diaphragm into an excitation region located inside the internal space and a vibration region located outside the internal space.Type: GrantFiled: March 22, 2022Date of Patent: December 26, 2023Assignee: AGC INC.Inventors: Jun Akiyama, Kento Sakurai
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Patent number: 11849296Abstract: A vibration device includes a plate-like glass vibrator and a plurality of exciters that are attached to the glass vibrator and configured to generate vibration according to an input electrical signal. An aspect ratio La/Lb of a length La of a longer side to a length Lb of a shorter side of a rectangle in which the glass vibrator is inscribed is 1.2 to 50. Provided that the number of the exciters is n and a minimum value of distance between the exciters is Smin, a relational value ? (?=Smin?1)/La) is 0.2 to 0.8. In the case where the number n of exciters is 3 or larger, a value ?(?=S?/Save) obtained by dividing a standard deviation S? of distances by an average Save of the distances between the exciters is 0 to 0.5.Type: GrantFiled: June 24, 2021Date of Patent: December 19, 2023Assignee: AGC Inc.Inventors: Jun Akiyama, Kento Sakurai
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Publication number: 20230191745Abstract: A glass sheet composite includes: two or more sheets; and an intermediate layer between at least a pair of the sheets. At least one of the pair of sheets is a glass sheet. The intermediate layer satisfies all of the following properties: (1) the intermediate layer has a thickness of 20 ?m or less, (2) a compressive shear storage modulus at a temperature of 25° C. is 1.0×104 Pa or less, and (3) at the temperature of 25° C. and 1 Hz, the compressive shear storage modulus is higher than a compressive shear loss modulus. The glass sheet composite has a loss coefficient at 25° C. of 0.01 or more, and a sheet-thickness-direction longitudinal wave acoustic velocity of 4.Type: ApplicationFiled: February 10, 2023Publication date: June 22, 2023Applicant: AGC Inc.Inventors: Kento SAKURAI, Jun AKIYAMA
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Patent number: 11420421Abstract: A glass sheet composite includes a first glass sheet, a second sheet disposed opposite the first glass sheet, and a liquid layer formed by sealing up a liquid between the first glass sheet and the second sheet, in which the glass sheet composite has a plurality of vibration areas that are independent of each other in a plan view. The glass sheet composite is a diaphragm including at least one vibrator disposed on one side or both sides of the glass sheet composite. The glass sheet composite enables independent vibration at each of the vibration areas, and enables not only stereophonic or multiphonic reproduction but also local reproduction to be performed along with images. Since the diaphragm includes a vibrator, this diaphragm is excellent in sound reproduction.Type: GrantFiled: March 18, 2020Date of Patent: August 23, 2022Assignee: AGC Inc.Inventors: Kento Sakurai, Jun Akiyama, Daisuke Uchida, Shinya Tahara
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Patent number: 11385678Abstract: The present invention provides a display device and a television device with which it is possible to reduce the thickness of the device profile while also realizing desirable acoustic characteristics. This display device includes: a first plate-shaped object; a display module including a display element and a second plate-shaped object that supports the display element, the display module being disposed so as to face the first plate-shaped object; a liquid layer formed by sealing up a liquid between the first plate-like object and the display module; and a vibrator provided to the first plate-shaped object and/or the display module. The loss coefficient of the display device at 25° C. is 1×10?2 or greater and a thickness ratio between the first plate-shaped object and the display module is from 1:10 to 10:1.Type: GrantFiled: April 3, 2020Date of Patent: July 12, 2022Assignee: AGC Inc.Inventors: Kento Sakurai, Jun Akiyama, Shinya Tahara
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Publication number: 20220217470Abstract: A vibration device includes: a glass diaphragm; an exciter which is fixed to the glass diaphragm and vibrates the glass diaphragm; an enclosing member which defines an internal space by enclosing a portion, including a fixing position of the exciter, of the glass diaphragm, one end portion of the glass diaphragm being exposed to outside the internal space through an opening of the internal space; and a shielding member for acoustic shielding between the opening and the glass diaphragm, the shielding member dividing the glass diaphragm into an excitation region located inside the internal space and a vibration region located outside the internal space.Type: ApplicationFiled: March 22, 2022Publication date: July 7, 2022Applicant: AGC Inc.Inventors: Jun AKIYAMA, Kento SAKURAI
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Patent number: 11292231Abstract: The glass sheet composite of the present invention includes at least two sheets, a liquid layer held between two adjacent sheets of the at least two sheets, and a seal material disposed between the two sheets so as to seal up the liquid layer, in which at least one of the two sheets is a glass sheet, the glass sheet composite including a light-shielding part disposed so as to overlay a boundary between the liquid layer and the seal material when the glass sheet composite is viewed in a plan view. Because of this, the boundary can be concealed, and this not only results in an improvement in designability and a wider choice of materials for the liquid layer and the seal material.Type: GrantFiled: March 24, 2020Date of Patent: April 5, 2022Assignee: AGC Inc.Inventors: Kento Sakurai, Jun Akiyama
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Patent number: 11290807Abstract: The speaker device (100) includes a diaphragm (11), an exciter (13) which vibrates in response to an input electrical signal, and a vibration-transmitter (15) which is connected to both the diaphragm (11) and the exciter (13) and transmits the vibration of the exciter (13) to the diaphragm (11), in which the diaphragm (11) has a loss coefficient at 25° C. of 1×10?2 or higher and the vibration-transmitter (15) has a specific elastic modulus of 20 mm2/s2 or higher.Type: GrantFiled: September 3, 2020Date of Patent: March 29, 2022Assignee: AGC Inc.Inventors: Jun Akiyama, Kento Sakurai
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Publication number: 20210314706Abstract: A vibration device includes a plate-like glass vibrator and a plurality of exciters that are attached to the glass vibrator and configured to generate vibration according to an input electrical signal. An aspect ratio La/Lb of a length La of a longer side to a length Lb of a shorter side of a rectangle in which the glass vibrator is inscribed is 1.2 to 50. Provided that the number of the exciters is n and a minimum value of distance between the exciters is Smin, a relational value ? (?=Smin?1)/La) is 0.2 to 0.8. In the case where the number n of exciters is 3 or larger, a value ?(?=S?/Save) obtained by dividing a standard deviation S? of distances by an average Save of the distances between the exciters is 0 to 0.5.Type: ApplicationFiled: June 24, 2021Publication date: October 7, 2021Applicant: AGC Inc.Inventors: Jun AKIYAMA, Kento SAKURAI
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Patent number: 11122370Abstract: A glass sheet composite includes at least two sheets and a liquid layer held between the two sheets, and at least one of the two sheets being a glass sheet. In the glass sheet composite, the two sheets have been disposed so that an edge surface of one of the two sheets and an edge surface of the other sheet are not flush with each other to constitute a step portion having a stair-like shape in a cross-sectional view, and the glass sheet composite further comprising a seal material provided to the step portion to seal up at least the liquid layer.Type: GrantFiled: August 23, 2019Date of Patent: September 14, 2021Assignee: AGC Inc.Inventors: Jun Akiyama, Shinya Tahara, Daisuke Uchida, Kento Sakurai
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Publication number: 20200404412Abstract: The speaker device (100) includes a diaphragm (11), an exciter (13) which vibrates in response to an input electrical signal, and a vibration-transmitter (15) which is connected to both the diaphragm (11) and the exciter (13) and transmits the vibration of the exciter (13) to the diaphragm (11), in which the diaphragm (11) has a loss coefficient at 25° C. of 1×10?2 or higher and the vibration-transmitter (15) has a specific elastic modulus of 20 mm2/s2 or higher.Type: ApplicationFiled: September 3, 2020Publication date: December 24, 2020Applicant: AGC Inc.Inventors: Jun AKIYAMA, Kento SAKURAI
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Publication number: 20200238665Abstract: The glass sheet composite of the present invention includes at least two sheets, a liquid layer held between two adjacent sheets of the at least two sheets, and a seal material disposed between the two sheets so as to seal up the liquid layer, in which at least one of the two sheets is a glass sheet, the glass sheet composite including a light-shielding part disposed so as to overlay a boundary between the liquid layer and the seal material when the glass sheet composite is viewed in a plan view. Because of this, the boundary can be concealed, and this not only results in an improvement in designability and a wider choice of materials for the liquid layer and the seal material.Type: ApplicationFiled: March 24, 2020Publication date: July 30, 2020Applicant: AGC Inc.Inventors: Kento SAKURAI, Jun AKIYAMA
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Publication number: 20200233455Abstract: The present invention provides a display device and a television device with which it is possible to reduce the thickness of the device profile while also realizing desirable acoustic characteristics. This display device includes: a first plate-shaped object; a display module including a display element and a second plate-shaped object that supports the display element, the display module being disposed so as to face the first plate-shaped object; a liquid layer formed by sealing up a liquid between the first plate-like object and the display module; and a vibrator provided to the first plate-shaped object and/or the display module. The loss coefficient of the display device at 25° C. is 1×10?2 or greater and a thickness ratio between the first plate-shaped object and the display module is from 1:10 to 10:1.Type: ApplicationFiled: April 3, 2020Publication date: July 23, 2020Applicant: AGC Inc.Inventors: Kento Sakurai, Jun Akiyama, Shinya Tahara
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Publication number: 20200230922Abstract: The purpose of the present invention is to provide a glass sheet composite which, when used in applications such as displays, attains preferred visibility. The glass sheet composite includes at least two sheets, a liquid layer held between two adjacent sheets of the at least two sheets, and a seal material provided to at least some of peripheries of the two sheets so as to seal up the liquid layer, in which at least one of the two sheets being a glass sheet, and the difference in photorefractive index between the liquid layer and the seal material being 0.015 or less.Type: ApplicationFiled: April 3, 2020Publication date: July 23, 2020Applicant: AGC Inc.Inventors: Kento Sakurai, Jun Akiyama, Shinya Tahara
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Publication number: 20200223187Abstract: A glass sheet composite includes a first glass sheet, a second sheet disposed opposite the first glass sheet, and a liquid layer formed by sealing up a liquid between the first glass sheet and the second sheet, in which the glass sheet composite has a plurality of vibration areas that are independent of each other in a plan view. The glass sheet composite is a diaphragm including at least one vibrator disposed on one side or both sides of the glass sheet composite. The glass sheet composite enables independent vibration at each of the vibration areas, and enables not only stereophonic or multiphonic reproduction but also local reproduction to be performed along with images. Since the diaphragm includes a vibrator, this diaphragm is excellent in sound reproduction.Type: ApplicationFiled: March 18, 2020Publication date: July 16, 2020Applicant: AGC Inc.Inventors: Kento SAKURAI, Jun AKIYAMA, Daisuke UCHIDA, Shinya TAHARA
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Publication number: 20190387322Abstract: A glass sheet composite includes at least two sheets and a liquid layer held between the two sheets, and at least one of the two sheets being a glass sheet. In the glass sheet composite, the two sheets have been disposed so that an edge surface of one of the two sheets and an edge surface of the other sheet are not flush with each other to constitute a step portion having a stair-like shape in a cross-sectional view, and the glass sheet composite further comprising a seal material provided to the step portion to seal up at least the liquid layer.Type: ApplicationFiled: August 23, 2019Publication date: December 19, 2019Applicant: AGC Inc.Inventors: Jun AKIYAMA, Shinya TAHARA, Daisuke UCHIDA, Kento SAKURAI
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Publication number: 20190321787Abstract: Disclosed is a composite membrane comprising a mixed matrix membrane comprising a polymer matrix and fillers dispersed in the polymer matrix. The polymer matrix comprises a polymer having a polar functional group. The H2 permeability coefficient of the polymer matrix is 20 Barrer or more at 4 bar and 298 K. The filler has a polar functional group that may be capable of forming a hydrogen bond with the polar functional group of the polymer, and has an average diameter of 100 nm or less.Type: ApplicationFiled: November 2, 2017Publication date: October 24, 2019Applicant: Kyoto UniversityInventors: Easan Sivaniah, Behnam Ghalei, Kento Sakurai, Yosuke Kinoshita, Susumu Kitagawa