Patents by Inventor Masaaki Hiroki
Masaaki Hiroki 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: 20210280807Abstract: A highly portable and highly browsable light-emitting device is provided. A light-emitting device that is less likely to be broken is provided. The light-emitting device has a strip-like region having high flexibility and a strip-like region having low flexibility that are arranged alternately. In the region having high flexibility, a light-emitting panel and a plurality of spacers overlap with each other. In the region having low flexibility, the light-emitting panel and a support overlap with each other. When the region having high flexibility is bent, the angle between normals of facing planes of the two adjacent spacers changes according to the bending of the light-emitting panel; thus, a neutral plane can be formed in the light-emitting panel or in the vicinity of the light-emitting panel.Type: ApplicationFiled: May 13, 2021Publication date: September 9, 2021Inventors: Masaaki HIROKI, Akio ENDO
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Publication number: 20210274664Abstract: An electronic device of a novel embodiment, specifically an arm-worn electronic device used while being worn on an arm, is provided. An arm-worn secondary battery used while being worn on an arm is provided. An electronic device is provided, which includes a structure body having a curved surface as a support structure body, a flexible secondary battery including a film as an exterior body over the curved surface of the support structure body, and a display portion including a plurality of display elements between a pair of films over the secondary battery. The plurality of display elements and the secondary battery overlap with each other at least partly. It is possible to provide an electronic device which has a small maximum thickness of 1 cm or less and a light weight of 50 g or less even when an arm-worn secondary battery is provided with a display portion.Type: ApplicationFiled: May 17, 2021Publication date: September 2, 2021Inventors: Masaaki HIROKI, Haruki KATAGIRI, Shinya OKANO
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Publication number: 20210273184Abstract: A highly portable and highly browsable light-emitting device is provided. A light-emitting device that is less likely to be broken is provided. The light-emitting device has a strip-like region having high flexibility and a strip-like region having low flexibility that are arranged alternately. In the region having high flexibility, a light-emitting panel and a plurality of spacers overlap with each other. In the region having low flexibility, the light-emitting panel and a support overlap with each other. When the region having high flexibility is bent, the angle between normals of facing planes of the two adjacent spacers changes according to the bending of the light-emitting panel; thus, a neutral plane can be formed in the light-emitting panel or in the vicinity of the light-emitting panel.Type: ApplicationFiled: May 13, 2021Publication date: September 2, 2021Inventors: Masaaki HIROKI, Akio ENDO
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Publication number: 20210240221Abstract: A novel electronic device is provided. Alternatively an electronic device of a novel embodiment is provided. An electronic device includes a ring portion and a display portion. The display portion is flexible. The display portion has a top surface and a first side surface in contact with at least one side of the top surface. The first side surface has a curved surface. The top surface includes a first display region. The first side surface includes a second display region. The first display region and the second display region are continuously provided. The electronic device is mounted such that the ring portion is in contact with a user's finger.Type: ApplicationFiled: April 19, 2021Publication date: August 5, 2021Inventors: Hideaki KUWABARA, Masaaki HIROKI
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Patent number: 11054858Abstract: A structure suitable for a portable information terminal or a wearable device is provided. In addition, an electronic device having a novel structure that can have various forms is provided. It is preferable that a buffer layer which absorbs a difference in the amount of change in form be provided between adjacent film substrates which overlap with each other. As the buffer layer, a gelled resin material, a rubber resin material, a liquid material, an air layer, or the like can be used. Furthermore, an optical film such as a polarizing film or a color filter may be used as the buffer layer. A plurality of buffer layers may be provided in an electronic device.Type: GrantFiled: October 29, 2020Date of Patent: July 6, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masaaki Hiroki, Daisuke Furumatsu
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Publication number: 20210159434Abstract: A highly portable and highly browsable light-emitting device is provided. A light-emitting device that is less likely to be broken is provided. The light-emitting device has a strip-like region having high flexibility and a strip-like region having low flexibility that are arranged alternately. In the region having high flexibility, a light-emitting panel and a plurality of spacers overlap with each other. In the region having low flexibility, the light-emitting panel and a support overlap with each other. When the region having high flexibility is bent, the angle between normals of facing planes of the two adjacent spacers changes according to the bending of the light-emitting panel; thus, a neutral plane can be formed in the light-emitting panel or in the vicinity of the light-emitting panel.Type: ApplicationFiled: November 12, 2020Publication date: May 27, 2021Inventors: Masaaki HIROKI, Akio ENDO
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Patent number: 11009909Abstract: A novel electronic device is provided. Alternatively an electronic device of a novel embodiment is provided. An electronic device includes a ring portion and a display portion. The display portion is flexible. The display portion has a top surface and a first side surface in contact with at least one side of the top surface. The first side surface has a curved surface. The top surface includes a first display region. The first side surface includes a second display region. The first display region and the second display region are continuously provided. The electronic device is mounted such that the ring portion is in contact with a user's finger.Type: GrantFiled: September 24, 2018Date of Patent: May 18, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideaki Kuwabara, Masaaki Hiroki
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Patent number: 11013132Abstract: An electronic device of a novel embodiment, specifically an arm-worn electronic device used while being worn on an arm, is provided. An arm-worn secondary battery used while being worn on an arm is provided. An electronic device is provided, which includes a structure body having a curved surface as a support structure body, a flexible secondary battery including a film as an exterior body over the curved surface of the support structure body, and a display portion including a plurality of display elements between a pair of films over the secondary battery. The plurality of display elements and the secondary battery overlap with each other at least partly. It is possible to provide an electronic device which has a small maximum thickness of 1 cm or less and a light weight of 50 g or less even when an arm-worn secondary battery is provided with a display portion.Type: GrantFiled: July 11, 2017Date of Patent: May 18, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masaaki Hiroki, Haruki Katagiri, Shinya Okano
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Publication number: 20210143500Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.Type: ApplicationFiled: January 21, 2021Publication date: May 13, 2021Inventors: Minoru TAKAHASHI, Shunpei YAMAZAKI, Masaaki HIROKI, Kei TAKAHASHI, Junpei MOMO
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Patent number: 10998750Abstract: To provide a light-emitting device capable of being used in a wide temperature range. To provide a light-emitting device capable of being used in a low-temperature environment and a high-temperature environment. The light-emitting device includes a light-emitting panel, a secondary battery, a circuit, and a sealing structure. The light-emitting panel includes a light-emitting element. The light-emitting element can emit light with power supplied from the secondary battery. The circuit includes an antenna and can charge the secondary battery wirelessly. The light-emitting panel, the secondary battery, and the circuit are provided in the sealing structure. The sealing structure includes a portion through which light emitted from the light-emitting element passes.Type: GrantFiled: April 16, 2018Date of Patent: May 4, 2021Inventors: Yusuke Yoshitani, Masaaki Hiroki, Minoru Takahashi
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Patent number: 10978757Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.Type: GrantFiled: September 1, 2020Date of Patent: April 13, 2021Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Minoru Takahashi, Shunpei Yamazaki, Masaaki Hiroki, Kei Takahashi, Junpei Momo
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Publication number: 20210064078Abstract: A structure suitable for a portable information terminal or a wearable device is provided. In addition, an electronic device having a novel structure that can have various forms is provided. It is preferable that a buffer layer which absorbs a difference in the amount of change in form be provided between adjacent film substrates which overlap with each other. As the buffer layer, a gelled resin material, a rubber resin material, a liquid material, an air layer, or the like can be used. Furthermore, an optical film such as a polarizing film or a color filter may be used as the buffer layer. A plurality of buffer layers may be provided in an electronic device.Type: ApplicationFiled: October 29, 2020Publication date: March 4, 2021Inventors: Masaaki HIROKI, Daisuke FURUMATSU
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Publication number: 20200403285Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.Type: ApplicationFiled: September 1, 2020Publication date: December 24, 2020Inventors: Minoru TAKAHASHI, Shunpei YAMAZAKI, Masaaki HIROKI, Kei TAKAHASHI, Junpei MOMO
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Patent number: 10840464Abstract: A highly portable and highly browsable light-emitting device is provided. A light-emitting device that is less likely to be broken is provided. The light-emitting device has a strip-like region having high flexibility and a strip-like region having low flexibility that are arranged alternately. In the region having high flexibility, a light-emitting panel and a plurality of spacers overlap with each other. In the region having low flexibility, the light-emitting panel and a support overlap with each other. When the region having high flexibility is bent, the angle between normals of facing planes of the two adjacent spacers changes according to the bending of the light-emitting panel; thus, a neutral plane can be formed in the light-emitting panel or in the vicinity of the light-emitting panel.Type: GrantFiled: January 16, 2019Date of Patent: November 17, 2020Assignee: Semiconductor Energy Laboratories Co., Ltd.Inventors: Masaaki Hiroki, Akio Endo
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Patent number: 10833309Abstract: A secondary battery in which convection in an electrolyte solution occurs easily is provided. A secondary battery whose electrolyte solution can be replaced is provided. A nonaqueous secondary battery includes a positive electrode, a negative electrode, a separator, and an electrolyte solution, and the separator includes grooves capable of making convection in the electrolyte solution occur easily. The nonaqueous secondary battery has at least one expected installation direction, and the grooves in the separator are preferably formed so as to be perpendicular to an expected installation surface. The exterior body includes a first opening for injection of an inert gas into the exterior body and a second opening for expelling or injection of an electrolyte solution from or into the exterior body. An electrolyte solution replacement apparatus has a function of injecting the inert gas through the first opening and expelling or injecting the electrolyte solution through the second opening.Type: GrantFiled: November 8, 2017Date of Patent: November 10, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Minoru Takahashi, Masaaki Hiroki
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Patent number: 10824193Abstract: A structure suitable for a portable information terminal or a wearable device is provided. In addition, an electronic device having a novel structure that can have various forms is provided. It is preferable that a buffer layer which absorbs a difference in the amount of change in form be provided between adjacent film substrates which overlap with each other. As the buffer layer, a gelled resin material, a rubber resin material, a liquid material, an air layer, or the like can be used. Furthermore, an optical film such as a polarizing film or a color filter may be used as the buffer layer. A plurality of buffer layers may be provided in an electronic device.Type: GrantFiled: May 9, 2019Date of Patent: November 3, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Masaaki Hiroki, Daisuke Furumatsu
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Patent number: 10797367Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.Type: GrantFiled: May 21, 2018Date of Patent: October 6, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Minoru Takahashi, Shunpei Yamazaki, Masaaki Hiroki, Kei Takahashi, Junpei Momo
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Publication number: 20200278721Abstract: A sturdy electronic device is provided. A reliable electronic device is provided. A novel electronic device is provided. An electronic device includes a first board, a second board, a display portion having flexibility, and a power storage device having flexibility. The first board and the second board face each other. The display portion and the power storage device are provided between the first board and the second board. The display portion includes a first surface facing the power storage device. The first surface includes a first region not fixed to the power storage device. The first region overlaps with a display region of the display portion.Type: ApplicationFiled: April 17, 2020Publication date: September 3, 2020Inventor: Masaaki HIROKI
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Publication number: 20200220150Abstract: Part of an electrode, specifically a current collector and an active material layer, for a secondary battery is subjected to cutting processing to have a complex shape. For example, a stack of the first current collector and the first active material layer has a first slit and a second slit. Each of the first slit and the second slit passing across the first current collector and the first active material layer and extending from an edge of the first current collector. Another stack of the second current collector and the second active material layer has a third slit and a fourth slit. Each of the third slit and the fourth slit passing across the second current collector and the second active material layer and extending from an edge of the second current collector.Type: ApplicationFiled: March 18, 2020Publication date: July 9, 2020Inventors: Masaaki HIROKI, Ryota TAJIMA
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Patent number: 10627866Abstract: A sturdy electronic device is provided. A reliable electronic device is provided. A novel electronic device is provided. An electronic device includes a first board, a second board, a display portion having flexibility, and a power storage device having flexibility. The first board and the second board face each other. The display portion and the power storage device are provided between the first board and the second board. The display portion includes a first surface facing the power storage device. The first surface includes a first region not fixed to the power storage device. The first region overlaps with a display region of the display portion.Type: GrantFiled: January 3, 2019Date of Patent: April 21, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Masaaki Hiroki