Patents by Inventor Hiroki Sakata
Hiroki Sakata 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: 11939667Abstract: A method for manufacturing a wavelength conversion member, includes: providing a wavelength conversion layer having a phosphor-containing portion and a light reflecting portion surrounding the phosphor-containing portion, and the wavelength conversion layer having an upper surface, a bottom surface and at least one side surface; forming a light-blocking film on the upper surface of the wavelength conversion layer; and removing a part of the light-blocking film by laser processing to expose at least a part of the phosphor-containing portion from the light-blocking film.Type: GrantFiled: April 14, 2021Date of Patent: March 26, 2024Assignee: NICHIA CORPORATIONInventors: Naoki Eboshi, Hiroaki Yuto, Hiroki Sakata, Toshiaki Yamashita, Akinori Hara
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Patent number: 11923204Abstract: A semiconductor device for high power application in which a novel semiconductor material having high mass productivity is provided. An oxide semiconductor film is formed, and then, first heat treatment is performed on the exposed oxide semiconductor film in order to reduce impurities such as moisture or hydrogen in the oxide semiconductor film. Next, in order to further reduce impurities such as moisture or hydrogen in the oxide semiconductor film, oxygen is added to the oxide semiconductor film by an ion implantation method, an ion doping method, or the like, and after that, second heat treatment is performed on the exposed oxide semiconductor film.Type: GrantFiled: September 14, 2022Date of Patent: March 5, 2024Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Junichiro Sakata, Hiroki Ohara
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Publication number: 20230174806Abstract: The present invention provides a model material clear composition to be used in a material-jet optical shaping process, comprising an ethylenically unsaturated compound (A) and a photopolymerization initiator, wherein the ethylenically unsaturated compound (A) comprises: an ethylenically unsaturated monomer (A1) having a dicyclopentenyl group and/or a dicyclopentanyl group; an ethylenically unsaturated compound (A2) having an aliphatic cyclic structure in a molecule and having a urethane group; and an ethylenically unsaturated monomer (A3) having an aliphatic cyclic structure in a molecule and having neither a urethane group nor an amide group (excluding the ethylenically unsaturated monomer (A1)), and wherein a total mass of the ethylenically unsaturated monomer (A1), the ethylenically unsaturated compound (A2), and the ethylenically unsaturated monomer (A3) is 60% by mass or more based on the total mass of the ethylenically unsaturated compound (A).Type: ApplicationFiled: March 10, 2021Publication date: June 8, 2023Inventors: Katsuyuki KITO, Hiroshi OTA, Hiroki SAKATA
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Publication number: 20230100703Abstract: A model material clear composition comprises an ethylenically unsaturated monomer (A1) having at least one group selected from a group consisting of a dicyclopentenyl group and a dicyclopentanyl group, at least one photopolymerization initiator selected from a group consisting of an acylphosphine oxide-based photopolymerization initiator and an ?-hydroxyacetophenone-based photopolymerization initiator, a hindered amine-based polymerization inhibitor, and a phenolic antioxidant, and contents (% by mass) of the initiator, the polymerization inhibitor, and the antioxidant satisfy Formula (1): content of photopolymerization initiator?content of polymerization inhibitor?content of oxidation inhibitor, and Formula (2): 1??content of photopolymerization initiator/?[(content of polymerization inhibitor×10)2+(content of antioxidant×100)2]?800.Type: ApplicationFiled: August 25, 2022Publication date: March 30, 2023Inventors: Hiroshi OTA, Hiroki SAKATA
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Publication number: 20220055708Abstract: A decorative molded component includes: a substrate having a shell extending along a mating surface and a through hole adjacent to the shell and defined along the mating surface; and a molded body coated to the mating surface, the molded body covering the through hole to be continuous from a skin bonded to the shell. The decorative molded component improves appearance while keeping the functions of the two members.Type: ApplicationFiled: December 17, 2019Publication date: February 24, 2022Applicant: Honda Motor Co., Ltd.Inventors: Ikue SATO, Hiroki SAKATA, Kosaku MIZUTANI
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Publication number: 20220017173Abstract: A decorative molded article includes a resin-made base body and a resin-made skin body. The base body includes a skeleton body spread in a mesh pattern along a matching surface, and singly has rigidity lower than intended rigidity. The skin body includes a colored printed surface. The skin body is fixed to the base body so as to cover the matching surface. The skin body secures the intended rigidity in cooperation with the base body. The thus-provided decorative molded article includes the decorative sheet with a function of reinforcing rigidity, and thereby enables the decorative sheet to contribute to a decrease in resin amount.Type: ApplicationFiled: December 17, 2019Publication date: January 20, 2022Applicant: Honda Motor Co., Ltd.Inventors: Ikue SATO, Hiroki SAKATA, Kosaku MIZUTANI
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Publication number: 20210332475Abstract: A method for manufacturing a wavelength conversion member, includes: providing a wavelength conversion layer having a phosphor-containing portion and a light reflecting portion surrounding the phosphor-containing portion, and the wavelength conversion layer having an upper surface, a bottom surface and at least one side surface; forming a light-blocking film on the upper surface of the wavelength conversion layer; and removing a part of the light-blocking film by laser processing to expose at least a part of the phosphor-containing portion from the light-blocking film.Type: ApplicationFiled: April 14, 2021Publication date: October 28, 2021Inventors: Naoki EBOSHI, Hiroaki YUTO, Hiroki SAKATA, Toshiaki YAMASHITA, Akinori HARA
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Patent number: 10088611Abstract: A color filter forming substrate used in a multifunctional terminal is provided which has a frame disposed surrounding respective colored layers for a color filter and having a non-display area formed by the frame portion all around a boundary between the display area and the frame, and specifically has a transparent substrate as a base material; and, on one side of the base material, colored layers of respective colors for a color filter disposed in a display area and a frame portion comprising a light-shielding colored layer disposed as a region not for display around a periphery of the region for display. The color filter forming substrate is used for a display device.Type: GrantFiled: January 20, 2017Date of Patent: October 2, 2018Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Kazuyuki Hino, Seiji Tawaraya, Hiroki Sakata
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Patent number: 9991671Abstract: A method for producing a semiconductor laser element includes providing a semiconductor wafer comprising: a nitride semiconductor substrate, and a semiconductor stack located on the substrate, the semiconductor stack including a plurality of nitride semiconductor layers; forming in the substrate a fissure starting point and a fissure extending from the fissure starting point; forming a cleavage reference portion extending parallel to a cleavage plane of the semiconductor wafer as estimated from a plan view shape of the fissure; and cleaving the semiconductor wafer parallel to the cleavage reference portion to thereby obtain resonator end faces.Type: GrantFiled: September 7, 2016Date of Patent: June 5, 2018Assignee: NICHIA CORPORATIONInventors: Hiroki Sakata, Hiroki Koizumi
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Patent number: 9673263Abstract: Provided is an organic EL display device capable of preventing or restraining color shift or color mixing in an image displayed in each of its pixels, this inconvenience being caused by the entry of light into the pixel from an organic EL element of a pixel adjacent to the pixel; and provided is a color filter forming substrate making it possible to produce such an organic EL display device.Type: GrantFiled: December 10, 2013Date of Patent: June 6, 2017Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Atsushi Ono, Hiroki Sakata, Yousuke Wada, Masatoshi Oba, Seiji Tawaraya, Tadashi Furukawa
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Publication number: 20170139090Abstract: A color filter forming substrate used in a multifunctional terminal is provided which has a frame disposed surrounding respective colored layers for a color filter and having a non-display area formed by the frame portion all around a boundary between the display area and the frame, and specifically has a transparent substrate as a base material; and, on one side of the base material, colored layers of respective colors for a color filter disposed in a display area and a frame portion comprising a light-shielding colored layer disposed as a region not for display around a periphery of the region for display. The color filter forming substrate is used for a display device.Type: ApplicationFiled: January 20, 2017Publication date: May 18, 2017Inventors: Kazuyuki HINO, Seiji TAWARAYA, Hiroki SAKATA
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Publication number: 20170077672Abstract: A method for producing a semiconductor laser element includes providing a semiconductor wafer comprising: a nitride semiconductor substrate, and a semiconductor stack located on the substrate, the semiconductor stack including a plurality of nitride semiconductor layers; forming in the substrate a fissure starting point and a fissure extending from the fissure starting point; forming a cleavage reference portion extending parallel to a cleavage plane of the semiconductor wafer as estimated from a plan view shape of the fissure; and cleaving the semiconductor wafer parallel to the cleavage reference portion to thereby obtain resonator end faces.Type: ApplicationFiled: September 7, 2016Publication date: March 16, 2017Applicant: NICHIA CORPORATIONInventors: Hiroki SAKATA, Hiroki KOIZUMI
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Patent number: 9588265Abstract: A color filter forming substrate used in a multifunctional terminal is provided which has a frame disposed surrounding respective colored layers for a color filter and having a non-display area formed by the frame portion all around a boundary between the display area and the frame, and specifically has a transparent substrate as a base material; and, on one side of the base material, colored layers of respective colors for a color filter disposed in a display area and a frame portion comprising a light-shielding colored layer disposed as a region not for display around a periphery of the region for display. The color filter forming substrate is used for a display device.Type: GrantFiled: July 3, 2012Date of Patent: March 7, 2017Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Kazuyuki Hino, Seiji Tawaraya, Hiroki Sakata
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Patent number: 9496680Abstract: A semiconductor laser device can include an insulating single crystal SiC having a first surface, a second surface, and micropipes having openings in the first surface and the second surface. A conductive base can be provided on a side of the first surface of the single crystal SiC, and a semiconductor laser element can be provided on a side of the second surface of the single crystal SiC. An insulating member can be formed in the micropipes.Type: GrantFiled: March 1, 2016Date of Patent: November 15, 2016Assignee: NICHIA CORPORATIONInventors: Hiroki Sakata, Hiroaki Yuto, Eiichiro Okahisa, Kazuma Kozuru
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Publication number: 20160181760Abstract: A semiconductor laser device can include an insulating single crystal SiC having a first surface, a second surface, and micropipes having openings in the first surface and the second surface. A conductive base can be provided on a side of the first surface of the single crystal SiC, and a semiconductor laser element can be provided on a side of the second surface of the single crystal SiC. An insulating member can be formed in the micropipes.Type: ApplicationFiled: March 1, 2016Publication date: June 23, 2016Inventors: Hiroki SAKATA, Hiroaki YUTO, Eiichiro OKAHISA, Kazuma KOZURU
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Patent number: 9318871Abstract: A semiconductor laser device can include an insulating single crystal SiC having a first surface, a second surface, and micropipes having openings in the first surface and the second surface. A conductive base can be provided on a side of the first surface of the single crystal SiC, and a semiconductor laser element can be provided on a side of the second surface of the single crystal SiC. An insulating member can be formed in the micropipes.Type: GrantFiled: April 25, 2014Date of Patent: April 19, 2016Assignee: NICHIA CORPORATIONInventors: Hiroki Sakata, Hiroaki Yuto, Eiichiro Okahisa, Kazuma Kozuru
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Publication number: 20150349030Abstract: Provided is an organic EL display device capable of preventing or restraining color shift or color mixing in an image displayed in each of its pixels, this inconvenience being caused by the entry of light into the pixel from an organic EL element of a pixel adjacent to the pixel; and provided is a color filter forming substrate making it possible to produce such an organic EL display device.Type: ApplicationFiled: December 10, 2013Publication date: December 3, 2015Inventors: Atsushi ONO, Hiroki SAKATA, Yousuke WADA, Masatoshi OBA, Seiji TAWARAYA, Tadashi FURUKAWA
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Publication number: 20140321491Abstract: A semiconductor laser device can include an insulating single crystal SiC having a first surface, a second surface, and micropipes having openings in the first surface and the second surface. A conductive base can be provided on a side of the first surface of the single crystal SiC, and a semiconductor laser element can be provided on a side of the second surface of the single crystal SiC. An insulating member can be formed in the micropipes.Type: ApplicationFiled: April 25, 2014Publication date: October 30, 2014Applicant: NICHIA CORPORATIONInventors: Hiroki SAKATA, Hiroaki YUTO, Eiichiro OKAHISA, Kazuma KOZURU
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Publication number: 20130342927Abstract: A color filter forming substrate used in a multifunctional terminal is provided which has a frame disposed surrounding respective colored layers for a color filter and having a non-display area formed by the frame portion all around a boundary between the display area and the frame, and specifically has a transparent substrate as a base material; and, on one side of the base material, colored layers of respective colors for a color filter disposed in a display area and a frame portion comprising a light-shielding colored layer disposed as a region not for display around a periphery of the region for display. The color filter forming substrate is used for a display device.Type: ApplicationFiled: July 3, 2012Publication date: December 26, 2013Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Kazuyuki Hino, Seiji Tawaraya, Hiroki Sakata
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Patent number: 8084080Abstract: A plasma processing is performed by providing a first and a second electrodes to be relatively parallelly movable, disposing an object to be processed on the second electrode so as to face the first electrode and providing a blocking member to both end portions of the second electrode, so that a plasma processing space is blocked by the blocking member when the first and second electrodes are moved relatively with each other. A voltage is applied to both the first and the second electrodes and a process gas is introduced into the plasma processing space formed between the first and second electrodes, and the plasma is irradiated to the object. The blocking member is provided so as to extend from the second electrode to the first electrode, and an upper surface of the blocking member is raised higher than a surface level of the object to be processed.Type: GrantFiled: March 1, 2007Date of Patent: December 27, 2011Assignee: Dai Nippon Printing Co., Ltd.Inventors: Yusuke Uno, Norikatsu Nakamura, Hiroki Sakata