Patents by Inventor Takuya Nakabayashi
Takuya Nakabayashi 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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Patent number: 11628469Abstract: The present invention provides a multilayer coating film-forming method that is capable of forming a multilayer coating film with excellent finished appearance and excellent luster. The aqueous base paint (X) is applied by using a rotary-atomization bell-shaped coater under coating conditions of a shaping air pressure of 0.15 to 0.25 MPa and a paint discharge amount of 100 to 300 cm3/min. The viscosity 60 seconds after the application of the aqueous base paint (X), measured at a temperature of 23° C. and a shear rate of 0.1 sec-1, is 90 to 160 Pa·s, the solids content 60 seconds after the application is 20 to 40 mass %, and the film thickness 60 seconds after the application is 17 to 35 ?m.Type: GrantFiled: October 13, 2021Date of Patent: April 18, 2023Assignees: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masayuki Itoh, Nobuyoshi Suzuki, Takuya Nakabayashi, Masahiro Omura, Takao Tsukimori
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Publication number: 20230082182Abstract: A planar light source includes a light guide member having a through hole, a light source, a first light adjusting member, a second light adjusting member, and a light transmissive member. The first light adjusting member having reflectivity and transmissivity with respect to light from the light source is disposed on or above an upper face of the light source in the through hole. The second light adjusting member having reflectivity and transmissivity with respect to the light from the light source is disposed above and apart from the first light adjusting member. The first light transmissive member having a higher transmissivity with respect to the light from the light source than the transmissivities of the first and second light adjusting members is disposed between the first light adjusting member and the second light adjusting member, and between a lateral face of the light source and the light guide member.Type: ApplicationFiled: November 18, 2022Publication date: March 16, 2023Applicant: NICHIA CORPORATIONInventors: Takuya NAKABAYASHI, Toru HASHIMOTO
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Publication number: 20230085463Abstract: A light-emitting device includes a wiring board, a plurality of light-emitting elements disposed on the wiring board, a light-reflecting member covering a lateral surface of each of the plurality of light-emitting elements, a plurality of light-transmitting layers each located above an emission surface of a corresponding one of the plurality of light-emitting elements, a plurality of light-reflecting layers disposed on the plurality of light-transmitting layers, respectively, a light-diffusing layer disposed above the plurality of light-reflecting layers and the light-reflecting member, and a low-refractive-index layer located between the light-reflecting member and the light-diffusing layer, around each pair of one of the plurality of light-transmitting layers and one of the light-reflecting layers, and having a refractive index lower than that of the plurality of light-transmitting layers.Type: ApplicationFiled: October 17, 2022Publication date: March 16, 2023Applicant: NICHIA CORPORATIONInventors: Takuya NAKABAYASHI, Ryohei YAMASHITA, Keiji EMURA, Tsuyoshi OKAHISA, Toshinobu KATSUMATA
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Patent number: 11605617Abstract: A light emitting device includes: a substrate including a base member including an upper surface, a lower surface and one or more lateral surfaces, and defining a recess that is opened at the upper surface and the lateral surfaces and surrounds an outer perimeter of the upper surface; a first light emitting element; a second light emitting element; a light guide member covering the first and the second light emitting elements and the upper surface of the base member; and a first reflective member having a closed-ring shape surrounding the upper surface of the base member and the light guide member, a portion of the first reflective member being located in the recess. At least one of the lateral surfaces of the base member and corresponding at least one of one or more outer lateral surfaces of the first reflective member are in the same plane.Type: GrantFiled: September 30, 2020Date of Patent: March 14, 2023Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Yukiko Yokote
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Patent number: 11598913Abstract: A light-emitting module includes: a plurality of light sources; and a lightguide plate including a plurality of light source placement sections, in each of which at least one light source is arranged, arrayed in a first direction and a second direction orthogonal to the first direction. The lightguide plate defines at least one first-A light control groove and at least one first-B light control groove that extend parallel to the second direction between a first light source placement section and a second light source placement section adjacent to the first light source placement section in the first direction, and at least one second-A light control groove and at least one second-B light control groove that extend parallel to the first direction between the first light source placement section and a third light source placement section adjacent to the first light source placement section in the second direction.Type: GrantFiled: July 1, 2021Date of Patent: March 7, 2023Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Daisuke Kasai, Takao Nakauchi
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Patent number: 11594665Abstract: A light-emitting unit includes: a wiring board; light-emitting elements on the wiring board; a light reflecting member on the wiring board, the light reflecting member covering a lateral surface of each of the light-emitting elements; wavelength conversion layers each provided on or above an emission surface of a corresponding one of the plurality of light-emitting elements; light reflecting layers on the wavelength conversion layers, respectively; and a protecting layer configured to transmit light and provided on the light reflecting member. The light-transmitting protecting layer covers at least a lateral surface of the wavelength conversion layers and at least a lateral surfaces of the light reflecting layers. An upper surface of the protecting layer has a first recess in a region where the plurality of light reflecting layers are not present in a top view. The first recess includes at least one concave surface.Type: GrantFiled: July 31, 2020Date of Patent: February 28, 2023Assignee: Nichia CorporationInventors: Takuya Nakabayashi, Toshinobu Katsumata, Noriaki Hiraide
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Publication number: 20230060023Abstract: A light emitting module including: a light guide member including: an emission region defined by a sectioning groove, a light source placement part located in the emission region, and a light adjusting hole; and a light source disposed in the light source placement part. In the schematic top view: the light adjusting hole is not positioned on a first straight line connecting (i) a center of the light source and (ii) a point in the sectioning groove that is farthest from the center of the light source, and a first lateral face of the light adjusting hole has a first region, and a line normal to the first region is oblique to a second straight line connecting (i) the center of the light source and (ii) a point in the sectioning groove that is closest to the center of the light source.Type: ApplicationFiled: October 25, 2022Publication date: February 23, 2023Applicant: NICHIA CORPORATIONInventors: Takuya NAKABAYASHI, Toru HASHIMOTO, Keiji EMURA
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Patent number: 11581465Abstract: A light emitting device includes a substrate including a base member including a front surface, a rear surface opposite to the front surface, a bottom surface perpendicular to the front surface, and a top surface opposite to the bottom surface, a first wiring portion located on the front surface, and a second wiring portion located on the rear surface; a light emitting element electrically connected with the first wiring portion; and a first reflective member covering a lateral surface of the light emitting element and the front surface of the base member. The base member has a recessed portion opened on the rear surface and the bottom surface. The substrate includes a third wiring portion covering an inner wall of the recessed portion and electrically connected with the second wiring portion, and a via in contact with the first wiring portion, the second wiring portion and the third wiring portion.Type: GrantFiled: February 12, 2021Date of Patent: February 14, 2023Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Gensui Tamura
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Publication number: 20230025627Abstract: A planar light source includes: a support member including a wiring substrate, a light guide member, a light source disposed in a hole of the light guide member, and a first reinforcing member disposed on the support member and surrounding the light guide member in a plan view. The first reinforcing member includes first and second portions extending in a first direction and facing each other, and includes third and fourth portions extending in a second direction orthogonal to the first direction and facing each other. At least one of the first portion, the second portion, the third portion, and the fourth portion has light reflectivity to light emitted from the light source. In the plan view, the light guide member is located between the first and second portions in the second direction, and is located between the third and fourth portions in the first direction.Type: ApplicationFiled: July 18, 2022Publication date: January 26, 2023Applicant: NICHIA CORPORATIONInventors: Shinya KONDO, Takuya NAKABAYASHI
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Publication number: 20230027533Abstract: A light emitting device includes a substrate including first, second, third and fourth wiring portions on a top surface of a base member and arrayed in a first direction, and a connection wiring portion connecting the second and third wiring portions. The connection wiring portion includes first and second connection ends respectively connected with the second and third wiring portions, and a connection central portion connecting the first and second connection ends and having a maximum width in a second direction different from each of a maximum width of the first connection end and a maximum width of the second connection end. In the second direction, at least a part of the connection wiring portion has a width narrower than each of a maximum width of the second wiring portion and a maximum width of the third wiring portion.Type: ApplicationFiled: October 4, 2022Publication date: January 26, 2023Applicant: NICHIA CORPORATIONInventors: Takuya NAKABAYASHI, Tadaaki IKEDA, Tetsuya ISHIKAWA
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Patent number: 11561338Abstract: A light-emitting module includes a light guide plate including a first surface, and a second surface opposite to the first surface; a light-emitting device disposed at a second surface side of the light guide plate; a first light-reflective member provided at a periphery of the light-emitting device at the second surface side; and a second light-reflective member provided outward of the first light-reflective member at the second surface. A diffuse reflectance of the first light-reflective member for light emitted by the light-emitting device is greater than a diffuse reflectance of the second light-reflective member for the light emitted by the light-emitting device.Type: GrantFiled: September 30, 2020Date of Patent: January 24, 2023Assignee: NICHIA CORPORATIONInventor: Takuya Nakabayashi
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Publication number: 20230013159Abstract: A planar light source includes: a light guide member, a light source including a light-emitting element and a first light adjustment member and being disposed in a first hole of the light guide member, a first light-transmissive member disposed in the first hole between a lateral surface of the light source and the light guide member and on the light source, and a second light adjustment member disposed on the first light-transmissive member. A transmittance of the first light-transmissive member is higher than a transmittance of the first light adjustment member and a transmittance of the second light adjustment member with respect to light emitted from the light source. The first light-transmissive member includes a first light-transmissive portion 1ocated between the first light adjustment member and the second light adjustment member, and a second light-transmissive portion 1ocated between the lateral surface of the light source and the light guide member.Type: ApplicationFiled: July 13, 2022Publication date: January 19, 2023Applicant: NICHIA CORPORATIONInventors: Satoshi YOSHINAGA, Takuya NAKABAYASHI, Yuki SHIBUTANI, Yoichi BANDO, Yasushi OKAMOTO
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Patent number: 11536439Abstract: A planar light source includes a light guide member having a through hole, a light source, a first light adjusting member, a second light adjusting member, and a light transmissive member. The first light adjusting member having reflectivity and transmissivity with respect to light from the light source is disposed on or above an upper face of the light source in the through hole. The second light adjusting member having reflectivity and transmissivity with respect to the light from the light source is disposed above and apart from the first light adjusting member. The first light transmissive member having a higher transmissivity with respect to the light from the light source than the transmissivities of the first and second light adjusting members is disposed between the first light adjusting member and the second light adjusting member, and between a lateral face of the light source and the light guide member.Type: GrantFiled: January 31, 2021Date of Patent: December 27, 2022Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Toru Hashimoto
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Patent number: 11520098Abstract: A light emitting module including: a light guide member including: an emission region defined by a sectioning groove, a light source placement part located in the emission region, and a light adjusting hole; and a light source disposed in the light source placement part. In the schematic top view: the light adjusting hole is not positioned on a first straight line connecting (i) a center of the light source and (ii) a point in the sectioning groove that is farthest from the center of the light source, and a first lateral face of the light adjusting hole has a first region, and a line normal to the first region is oblique to a second straight line connecting (i) the center of the light source and (ii) a point in the sectioning groove that is closest to the center of the light source.Type: GrantFiled: February 4, 2021Date of Patent: December 6, 2022Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Toru Hashimoto, Keiji Emura
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Patent number: 11506934Abstract: A light-emitting device includes a wiring board, a plurality of light-emitting elements disposed on the wiring board, a light-reflecting member covering a lateral surface of each of the plurality of light-emitting elements, a plurality of light-transmitting layers each located above an emission surface of a corresponding one of the plurality of light-emitting elements, a plurality of light-reflecting layers disposed on the plurality of light-transmitting layers, respectively, a light-diffusing layer disposed above the plurality of light-reflecting layers and the light-reflecting member, and a low-refractive-index layer located between the light-reflecting member and the light-diffusing layer, around each pair of one of the plurality of light-transmitting layers and one of the light-reflecting layers, and having a refractive index lower than that of the plurality of light-transmitting layers.Type: GrantFiled: August 30, 2021Date of Patent: November 22, 2022Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Ryohei Yamashita, Keiji Emura, Tsuyoshi Okahisa, Toshinobu Katsumata
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Patent number: 11495587Abstract: A light emitting device includes a substrate including first, second, third and fourth wiring portions on a top surface of a base member and arrayed in a first direction, and a connection wiring portion connecting the second and third wiring portions. The connection wiring portion includes first and second connection ends respectively connected with the second and third wiring portions, and a connection central portion connecting the first and second connection ends and having a maximum width in a second direction different from each of a maximum width of the first connection end and a maximum width of the second connection end. In the second direction, at least a part of the connection wiring portion has a width narrower than each of a maximum width of the second wiring portion and a maximum width of the third wiring portion.Type: GrantFiled: September 26, 2019Date of Patent: November 8, 2022Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Tadaaki Ikeda, Tetsuya Ishikawa
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Patent number: 11480319Abstract: A light emitting module includes: a light guide member including: an emission region defined by a sectioning groove, a light source placement part located in the emission region, and a light adjusting hole that, in a schematic top view, is located between the sectioning groove and the light source placement part; and a light source located in the light source placement part. A refractive index of an inside of the light adjusting hole is lower than a refractive index of the light guide member. In the schematic top view, the light adjusting hole is not positioned on a first straight line connecting a center of the light source and a farthest point in the sectioning groove, the farthest point being farthest from the center of the light source.Type: GrantFiled: February 5, 2021Date of Patent: October 25, 2022Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Toru Hashimoto, Keiji Emura
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Publication number: 20220310896Abstract: A light-emitting unit includes: a wiring board; a plurality of light-emitting elements provided on the wiring board and electrically coupled with a wire layer of the wiring board; a light reflecting member provided on the wiring board, the light reflecting member covering a lateral surface of each of the plurality of light-emitting elements; a light diffusing layer covering the plurality of light-emitting elements and the light reflecting member; a wavelength conversion layer located on or above the light diffusing layer; and a plurality of light reflecting layers located between the light diffusing layer and the wavelength conversion layer, each of the light reflecting layers being located above a corresponding one of the plurality of light-emitting elements. An upper surface of the light reflecting member has a recess which includes at least one concave surface, and there is a space between the concave surface and the light diffusing layer.Type: ApplicationFiled: June 17, 2022Publication date: September 29, 2022Applicant: NICHIA CORPORATIONInventors: Takuya NAKABAYASHI, Toshinobu KATSUMATA, Noriaki HIRAIDE
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Patent number: 11411144Abstract: A light-emitting device includes a substrate comprising a base member, a first wiring, a second wiring, and a via hole; at least one light-emitting element electrically connected to and disposed on the first wiring; and a covering member having light reflectivity and covering a lateral surface of the light-emitting element and a front surface of the substrate. The base member defines a plurality of depressed portions separated from the via hole in a front view and opening on a back surface and a bottom surface of the base member. The substrate includes a third wiring covering at least one of inner walls of the plurality of depressed portions and electrically connected to the second wiring. A depth of each of the plurality of depressed portions defined from the back surface toward the front surface is larger on a bottom surface side than on an upper surface side of the base member.Type: GrantFiled: September 16, 2020Date of Patent: August 9, 2022Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Tomokazu Maruyama, Tetsuya Ishikawa
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Patent number: 11393965Abstract: A light-emitting unit includes: a wiring board; a plurality of light-emitting elements provided on the wiring board and electrically coupled with a wire layer of the wiring board; a light reflecting member provided on the wiring board, the light reflecting member covering a lateral surface of each of the plurality of light-emitting elements; a light diffusing layer covering the plurality of light-emitting elements and the light reflecting member; a wavelength conversion layer located on or above the light diffusing layer; and a plurality of light reflecting layers located between the light diffusing layer and the wavelength conversion layer, each of the light reflecting layers being located above a corresponding one of the plurality of light-emitting elements. An upper surface of the light reflecting member has a recess which includes at least one concave surface, and there is a space between the concave surface and the light diffusing layer.Type: GrantFiled: July 31, 2020Date of Patent: July 19, 2022Assignee: Nichia CorporationInventors: Takuya Nakabayashi, Toshinobu Katsumata, Noriaki Hiraide