Patents by Inventor Eiji Satoh
Eiji Satoh 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: 20240349571Abstract: This display device includes a first electrode and a second electrode overlapping each other in a plan view, a light-emitting layer containing quantum dots and overlapping the first electrode and the second electrode in a plan view, a third electrode capable of forming an electrical field between the second electrode and third electrode, and an optical adjustment element overlapping the light-emitting layer in a plan view and having light transmittance that changes in accordance with a potential difference between the second electrode and the third electrode.Type: ApplicationFiled: January 22, 2021Publication date: October 17, 2024Inventors: TAZUKO KITAZAWA, YOSHIHIRO UETA, EIJI SATOH, Zenken KIN
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Publication number: 20240103323Abstract: A display device includes: a light-emitting element including a first electrode and a second electrode overlapping each other in a plan view, and a light-emitting layer placed between the first electrode and the second electrode; a third electrode capable of forming an electrical field between the second electrode and the third electrode; and an optical adjustment element overlapping the light-emitting layer in a plan view and having light transmittance that changes in accordance with a potential difference between the second electrode and the third electrode.Type: ApplicationFiled: January 22, 2021Publication date: March 28, 2024Applicant: SHARP KABUSHIKI KAISHAInventors: TAZUKO KITAZAWA, YOSHIHIRO UETA, EIJI SATOH
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Publication number: 20240069399Abstract: A display device includes: a TFT substrate including a thin film transistor; a light-emitting element including a first electrode and a second electrode overlapping each other in a plan view, and a light-emitting layer placed between the first electrode and the second electrode; a third electrode capable of forming an electrical field between the second electrode and the third electrode; an optical adjustment element overlapping the light-emitting layer in a plan view and having an optical characteristic that changes in accordance with a potential difference between the second electrode and the third electrode; and light scattering bodies included in at least one of the TFT substrate, the light-emitting element, and the optical adjustment element.Type: ApplicationFiled: January 22, 2021Publication date: February 29, 2024Inventors: TAZUKO KITAZAWA, YOSHIHIRO UETA, EIJI SATOH, Zenken KIN
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Publication number: 20230159356Abstract: A pretreatment method is provided for efficiently recovering a solvent from a raw material mixture comprising water, the solvent and a polymer dissolved and/or dispersed therein. The pretreatment method includes a step of subjecting the raw material mixture 12 to an ultrafiltration treatment 16, 18 to filter out the polymer so as to obtain a filtrate 36 of which polymer content is reduced.Type: ApplicationFiled: April 20, 2021Publication date: May 25, 2023Inventors: Michihito HIWATARI, Eiji SATOH
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Publication number: 20220328779Abstract: A light-emitting device includes a light-emitting layer containing: quantum dots serving as light emitters; and dummy flakes not involved in emitting light. The quantum dots are localized. Thanks to such features, light generated from the quantum dots is diffracted in the light-emitting layer, directed in a normal direction that is a thickness direction of an array substrate, and emitted out of the light-emitting device.Type: ApplicationFiled: September 19, 2019Publication date: October 13, 2022Inventors: EIJI SATOH, YOSHIHIRO UETA
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Patent number: 10649298Abstract: An electrochromic device having excellent repetitive characteristics is realized. An electrochromic device includes a first transparent electrode arranged on a first substrate, a second transparent electrode arranged on a second substrate, and a nanocrystal layer arranged on the first transparent electrode. An electrolyte is interposed between the nanocrystal layer and the second transparent electrode. The first transparent electrode, the second transparent electrode, and the nanocrystal layer do not cause an oxidation-reduction reaction when a voltage is applied to modulate a transmission spectrum, and do not include an electrode that causes modulation of a transmission spectrum by an oxidation-reduction reaction when a voltage is applied.Type: GrantFiled: December 12, 2016Date of Patent: May 12, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Eiji Satoh, Nobuyuki Ito
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Patent number: 10508487Abstract: A light adjustment system is, for example, a light adjustment window (1) including: a windowpane (11); a light adjustment device (40); a drive device (50); and a frame (20) having an incorporating (24) into which the windowpane (11) and the drive device (50) are incorporated. A part of the frame (20) includes: a containing section (26) that contains at least a part of the drive device (50); and an opening and closing section (27) that openably and closably covers the containing section (26).Type: GrantFiled: May 6, 2016Date of Patent: December 17, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Eiji Satoh, Nobuyuki Ito, Yufeng Weng
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Patent number: 10372009Abstract: The optical device (100) includes a first substrate (10), a second substrate (20), and an optical layer (30). The first substrate includes a first electrode (11) and a second electrode (12) configured to be provided with mutually different electrical potentials within a pixel. The optical layer may include a medium (31) and a plurality of shape-anisotropic particles (32) dispersed in the medium. At least one of the first electrode and the second electrode may include a plurality of comb teeth portions (11a, 12a) arranged at predetermined intervals along the first direction (D1). When an electric potential difference is applied between the first electrode and the second electrode, the pixel may be configured to have an electrical field distribution in which a strong electric field region having a stronger field intensity than another region is periodically formed parallel to the surface of the optical layer along a second direction (D2) orthogonal to the first direction.Type: GrantFiled: August 9, 2016Date of Patent: August 6, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Tomoko Teranishi, Hiroyuki Moriwaki, Eiji Satoh, Tadashi Ohtake, Hidefumi Yoshida, Satoshi Matsumura
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Publication number: 20190155123Abstract: A transmittance of light is adjusted by more various operation modes compared to the related art. In a dimming device, in a case where an AC voltage having a first frequency and an amplitude equal to or greater than a first amplitude is applied, the transmittance of light in the first wavelength range is higher than that in a case where a flake is oriented in a direction shielding the light, and in a case where an AC voltage having a second frequency and an amplitude equal to or greater than a second amplitude is applied, the transmittance of light in the second wavelength range is higher than that in a case where a flake is oriented in a direction shielding the light. Here, the second amplitude is equal to or greater than the first amplitude.Type: ApplicationFiled: April 27, 2017Publication date: May 23, 2019Inventors: Nobuyuki ITO, Eiji SATOH
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Publication number: 20190049808Abstract: An electrochromic device having excellent repetitive characteristics is realized. An electrochromic device includes a first transparent electrode arranged on a first substrate, a second transparent electrode arranged on a second substrate, and a nanocrystal layer arranged on the first transparent electrode. An electrolyte is interposed between the nanocrystal layer and the second transparent electrode. The first transparent electrode, the second transparent electrode, and the nanocrystal layer do not cause an oxidation-reduction reaction when a voltage is applied to modulate a transmission spectrum, and do not include an electrode that causes modulation of a transmission spectrum by an oxidation-reduction reaction when a voltage is applied.Type: ApplicationFiled: December 12, 2016Publication date: February 14, 2019Applicant: SHARP KABUSHIKI KAISHAInventors: EIJI SATOH, NOBUYUKI ITO
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Patent number: 10197856Abstract: The present invention provides an optical modulator that prevents aggregation of shape-anisotropic particles. The optical modulator of the present invention includes: (1) a first substrate and a second substrate that are disposed to face each other; (2) an optical modulation layer disposed between the first substrate and the second substrate; and (3) a vertical alignment film. The optical modulation layer (2) contains: (2A) liquid crystal molecules that have a positive anisotropy of dielectric constant with a value of the anisotropy ?? of 10 or more; and (2B) shape-anisotropic particles each including a core material and a coating layer that is formed of a material containing a fluorine atom and constitutes an outer surface of the shape-anisotropic particles. The first substrate includes a pair of electrodes.Type: GrantFiled: March 28, 2016Date of Patent: February 5, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Tadashi Ohtake, Tomoko Teranishi, Hiroyuki Moriwaki, Eiji Satoh, Hao Li
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Publication number: 20190004389Abstract: Provided is a light reflective material that enables stable switching between light transmission and light reflection when used in a light control device. A light reflective material includes a base, a conducting film that is stacked on the surface of the base, and an insulating film that is stacked on the surface of the conducting film. A first region where the conducting film is not formed is present in a layer where the conducting film lies. A second region where the insulating film is not formed is present in a layer where the insulating film lies. The first region and the second region at least partially overlap each other.Type: ApplicationFiled: August 24, 2016Publication date: January 3, 2019Applicant: SHARP KABUSHIKI KAISHAInventors: NOBUYUKI ITO, EIJI SATOH, YUFENG WENG
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Publication number: 20180239211Abstract: The optical device (100) includes a first substrate (10), a second substrate (20), and an optical layer (30). The first substrate includes a first electrode (11) and a second electrode (12) configured to be provided with mutually different electrical potentials within a pixel. The optical layer may include a medium (31) and a plurality of shape-anisotropic particles (32) dispersed in the medium. At least one of the first electrode and the second electrode may include a plurality of comb teeth portions (11a, 12a) arranged at predetermined intervals along the first direction (D1). When an electric potential difference is applied between the first electrode and the second electrode, the pixel may be configured to have an electrical field distribution in which a strong electric field region having a stronger field intensity than another region is periodically formed parallel to the surface of the optical layer along a second direction (D2) orthogonal to the first direction.Type: ApplicationFiled: August 9, 2016Publication date: August 23, 2018Inventors: TOMOKO TERANISHI, HIROYUKI MORIWAKI, EIJI SATOH, TADASHI OHTAKE, HIDEFUMI YOSHIDA, SATOSHI MATSUMURA
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Publication number: 20180195340Abstract: A light adjustment system is, for example, a light adjustment window (1) including: a windowpane (11); a light adjustment device (40); a drive device (50); and a frame (20) having an incorporating (24) into which the windowpane (11) and the drive device (50) are incorporated. A part of the frame (20) includes: a containing section (26) that contains at least a part of the drive device (50); and an opening and closing section (27) that openably and closably covers the containing section (26).Type: ApplicationFiled: May 6, 2016Publication date: July 12, 2018Inventors: EIJI SATOH, NOBUYUKI ITO, YUFENG WENG
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Publication number: 20180129086Abstract: The present invention provides an optical modulator that prevents aggregation of shape-anisotropic particles. The optical modulator of the present invention includes: (1) a first substrate and a second substrate that are disposed to face each other; (2) an optical modulation layer disposed between the first substrate and the second substrate; and (3) a vertical alignment film. The optical modulation layer (2) contains: (2A) liquid crystal molecules that have a positive anisotropy of dielectric constant with a value of the anisotropy ?? of 10 or more; and (2B) shape-anisotropic particles each including a core material and a coating layer that is formed of a material containing a fluorine atom and constitutes an outer surface of the shape-anisotropic particles. The first substrate includes a pair of electrodes.Type: ApplicationFiled: March 28, 2016Publication date: May 10, 2018Applicant: Sharp Kabushiki KaishaInventors: Tadashi OHTAKE, Tomoko TERANISHI, Hiroyuki MORIWAKI, Eiji SATOH, Hao LI
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Patent number: 9726958Abstract: The present invention provides a display panel and a display device which can increase light use efficiency with a simple configuration. An optical modulation layer 30 provided between substrates 10 and 20 contains a polar solvent 31a, a nonpolar solvent 31b, and hydrophilic shape-anisotropic members 32, the hydrophilic substrate 20 makes contact with the polar solvent 31a, the hydrophobic substrate 10 makes contact with the nonpolar solvent 31b, a projected area of the shape-anisotropic members 32 onto the substrates 10 and 20 is changed by adjusting a magnitude of a voltage to be applied to the optical modulation layer 30.Type: GrantFiled: February 26, 2013Date of Patent: August 8, 2017Assignee: Sharp Kabushiki KaishaInventors: Eiji Satoh, Kohzoh Nakamura, Hisashi Watanabe, Takahiro Nakahara
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Patent number: 9653037Abstract: An optical device (100) includes a first substrate (10) and a second substrate (20), and an optical layer (30) interposed therebetween. The first substrate includes a first electrode (11) and a second electrode (12), and the second substrate includes a third electrode (21). The optical layer contains a medium (31) and anisotropically-shaped particles (32) whose alignment direction changes in accordance with the direction of an electric field applied to the optical layer. The first electrode and the second electrode, which are interdigitated electrodes, are disposed so that their respective branches (11a, 12a) mesh with one another via a predetermined interspace. The relationships w1<l, w2<l and g?l?w1+w2+g are satisfied, where w1 is the width of each branch of the first electrode, w2 is the width of each branch of the second electrode, g is the predetermined interspace, and l is the length of the anisotropically-shaped particles.Type: GrantFiled: October 7, 2013Date of Patent: May 16, 2017Assignee: Sharp Kabushiki KaishaInventors: Takao Imaoku, Iori Aoyama, Tsuyoshi Inoue, Hiroyuki Moriwaki, Eiji Satoh
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Patent number: 9519176Abstract: Cohesion of shape anisotropy members is prevented A display panel (2) in accordance with an aspect of the present invention includes: substrates (10) and (20) which are provided so as to face each other; and an optical modulation layer (30) including a plurality of shape anisotropy members (32) each of which includes (i) a core that is an electric conductor and (ii) a covering layer that is a dielectric and that covers an entire periphery of the core. The display panel (2) changes an area of each image of the plurality of shape anisotropy members (32) which image is projected on the substrates (10) and (20), by changing a voltage to be applied to the optical modulation layer (30).Type: GrantFiled: June 14, 2013Date of Patent: December 13, 2016Assignee: Sharp Kabushiki KaishaInventor: Eiji Satoh
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Patent number: 9507189Abstract: The present invention provides a display panel that exhibits increased light use efficiency and decreased occurrence of display anomalies. The display panel includes substrates; a light modulating layer that contains shape-anisotropic members that rotate according to the direction of an electric field and that controls the transmittance of incident light by changing the area projected onto the substrates by the shape-anisotropic members; and supporting members that support the shape-anisotropic members and are rotatably connected thereto.Type: GrantFiled: September 2, 2013Date of Patent: November 29, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Eiji Satoh, Takuma Tomotoshi, Tomoko Teranishi, Takahiro Nakahara
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Publication number: 20160231637Abstract: An infrared dimming apparatus of the present invention includes an automatic control circuit that controls switching in a dimming cell between an infrared reflective state and an infrared transmissive state in accordance with a predetermined time schedule.Type: ApplicationFiled: August 8, 2014Publication date: August 11, 2016Applicant: Sharp Kabushiki KaishaInventors: Eiji SATOH, Kiyoshi MINOURA, Tomoko TERANISHI, Takuma TOMOTOSHI