Patents by Inventor Tatsuya Katoh
Tatsuya Katoh 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: 10825963Abstract: Provided is a light-emitting device and a method for manufacturing the same which avoid a distinct color unevenness during the light emission even if variations are present among the light-emitting elements in the concentration of the phosphor that precipitates in the resin for sealing the light-emitting elements. The light-emitting device includes a substrate, a plurality of light-emitting elements that are mounted on the substrate, a first resin layer that integrally seals the light-emitting elements and includes a first phosphor that is excited by light from the light-emitting elements at a concentration that is high as it goes to a lower end near the substrate from an upper end distant from the substrate, and a second resin layer that is provided at an upper side of the first resin layer and includes a second phosphor that is excited by light from the light-emitting elements at a uniform concentration.Type: GrantFiled: August 19, 2019Date of Patent: November 3, 2020Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.Inventors: Sadato Imai, Tatsuya Katoh, Masahiro Watanabe, Kazuki Matsumura
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Patent number: 10785879Abstract: A method of manufacturing a circuit substrate includes the steps of preparing a conductor paste in which a powder of at least one of a metal boride and a metal silicide is added to a powder of silver (Ag), applying the conductor paste to a surface of a ceramic substrate which has been fired, applying a glass paste to the surface of the ceramic substrate after applying the conductor paste, firing the conductor paste applied to the surface so as to form a conductor trace, and firing the glass paste applied to the surface so as to form a coating layer.Type: GrantFiled: July 10, 2018Date of Patent: September 22, 2020Assignee: NGK SPARK PLUG CO., LTD.Inventors: Tatsuya Katoh, Masanori Ito, Masaki Kutsuna
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Patent number: 10524365Abstract: A ceramic substrate includes a ceramic layer mainly formed of a glass ceramic and a conductor trace mainly formed of silver (Ag). In an adjacent region located adjacent to the conductor trace, the concentration of boron atoms (B) contained in the ceramic layer increases toward the conductor trace.Type: GrantFiled: January 8, 2016Date of Patent: December 31, 2019Assignee: NGK SPARK PLUG CO., LTD.Inventors: Tatsuya Katoh, Masanori Ito, Masaki Kutsuna
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Publication number: 20190371979Abstract: Provided is a light-emitting device and a method for manufacturing the same which avoid a distinct color unevenness during the light emission even if variations are present among the light-emitting elements in the concentration of the phosphor that precipitates in the resin for sealing the light-emitting elements. The light-emitting device includes a substrate, a plurality of light-emitting elements that are mounted on the substrate, a first resin layer that integrally seals the light-emitting elements and includes a first phosphor that is excited by light from the light-emitting elements at a concentration that is high as it goes to a lower end near the substrate from an upper end distant from the substrate, and a second resin layer that is provided at an upper side of the first resin layer and includes a second phosphor that is excited by light from the light-emitting elements at a uniform concentration.Type: ApplicationFiled: August 19, 2019Publication date: December 5, 2019Inventors: Sadato IMAI, Tatsuya KATOH, Masahiro WATANABE, Kazuki MATSUMURA
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Patent number: 10431721Abstract: Provided is a light-emitting device and a method for manufacturing the same which avoid a distinct color unevenness during the light emission even if variations are present among the light-emitting elements in the concentration of the phosphor that precipitates in the resin for sealing the light-emitting elements. The light-emitting device includes a substrate, a plurality of light-emitting elements that are mounted on the substrate, a first resin layer that integrally seals the light-emitting elements and includes a first phosphor that is excited by light from the light-emitting elements at a concentration that is high as it goes to a lower end near the substrate from an upper end distant from the substrate, and a second resin layer that is provided at an upper side of the first resin layer and includes a second phosphor that is excited by light from the light-emitting elements at a uniform concentration.Type: GrantFiled: January 11, 2017Date of Patent: October 1, 2019Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.Inventors: Sadato Imai, Tatsuya Katoh, Masahiro Watanabe, Kazuki Matsumura
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Patent number: 10375837Abstract: A method of manufacturing a ceramic substrate includes the steps of preparing a ceramic paste in which a powder of at least one of a metal boride and a metal silicide is added to a raw material powder of a glass ceramic, applying the ceramic paste to a green sheet which is to become a ceramic layer after firing, applying a conductor paste which is to become a conductor trace after firing to the ceramic paste having been applied to the green sheet, and firing the green sheet carrying the ceramic paste and the conductor paste applied thereto.Type: GrantFiled: January 8, 2016Date of Patent: August 6, 2019Assignee: NGK SPARK PLUG CO., LTD.Inventors: Tatsuya Katoh, Masanori Ito, Masaki Kutsuna
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Patent number: 10367032Abstract: A light-emitting apparatus having an LED-mounting surface having an improved light reflective efficiency is provided. The light-emitting apparatus includes a board, a first reflective layer arranged on the board, a second reflective layer different from the first reflective layer, arranged at a position different from the position of the first reflective layer on the board, a first configuration configured by a first LED element mounted on the first reflective layer and a first phosphor-containing resin which protects the first LED element and transforms a wavelength of light emitted from the first LED element, and a second configuration configured by a second LED element mounted on the second reflective layer and a second phosphor-containing resin which protects the second LED element and transforms a wavelength of light emitted from the second LED element.Type: GrantFiled: December 31, 2015Date of Patent: July 30, 2019Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.Inventors: Tatsuya Katoh, Tadahiro Fukuda
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Publication number: 20180324957Abstract: A method of manufacturing a circuit substrate includes the steps of preparing a conductor paste in which a powder of at least one of a metal boride and a metal silicide is added to a powder of silver (Ag), applying the conductor paste to a surface of a ceramic substrate which has been fired, applying a glass paste to the surface of the ceramic substrate after applying the conductor paste, firing the conductor paste applied to the surface so as to form a conductor trace, and firing the glass paste applied to the surface so as to form a coating layer.Type: ApplicationFiled: July 10, 2018Publication date: November 8, 2018Inventors: Tatsuya KATOH, Masanori ITO, Masaki KUTSUNA
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Patent number: 10084122Abstract: A light-emitting apparatus is provided which can improve the reflectance of light in the emission wavelength region of the LED. The light-emitting apparatus includes a mount board constituted by a metal support, a circuit board provided with an opening and fixed onto the mount board, a multi-layered film containing silver as a light-reflecting material, the multi-layered film being stacked on the mount board exposed in the opening, exclusive of a portion of the mount board onto which the circuit board is fixed, and an LED element mounted on the multi-layered film.Type: GrantFiled: July 16, 2015Date of Patent: September 25, 2018Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.Inventors: Tatsuya Katoh, Sadato Imai
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Publication number: 20180204986Abstract: Provided is a light-emitting device and a method for manufacturing the same which avoid a distinct color unevenness during the light emission even if variations are present among the light-emitting elements in the concentration of the phosphor that precipitates in the resin for sealing the light-emitting elements. The light-emitting device includes a substrate, a plurality of light-emitting elements that are mounted on the substrate, a first resin layer that integrally seals the light-emitting elements and includes a first phosphor that is excited by light from the light-emitting elements at a concentration that is high as it goes to a lower end near the substrate from an upper end distant from the substrate, and a second resin layer that is provided at an upper side of the first resin layer and includes a second phosphor that is excited by light from the light-emitting elements at a uniform concentration.Type: ApplicationFiled: January 11, 2017Publication date: July 19, 2018Inventors: Sadato IMAI, Tatsuya KATOH, Masahiro WATANABE, Kazuki MATSUMURA
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Publication number: 20180052359Abstract: A color filter substrate includes: a transparent substrate; a black matrix formed at one surface side of the transparent substrate in a grid shape; color filters installed on regions of the transparent substrate divided by the black matrix; and optical sensors formed on one surface or the other surface of the transparent substrate to overlap the black matrix seen from a direction perpendicular to the transparent substrate.Type: ApplicationFiled: March 14, 2016Publication date: February 22, 2018Inventors: TSUNEAKI UMEMOTO, NORIKAZU HOHSHI, TATSUYA KATOH
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Publication number: 20180035537Abstract: A method of manufacturing a ceramic substrate includes the steps of preparing a ceramic paste in which a powder of at least one of a metal boride and a metal silicide is added to a raw material powder of a glass ceramic, applying the ceramic paste to a green sheet which is to become a ceramic layer after firing, applying a conductor paste which is to become a conductor trace after firing to the ceramic paste having been applied to the green sheet, and firing the green sheet carrying the ceramic paste and the conductor paste applied thereto.Type: ApplicationFiled: January 8, 2016Publication date: February 1, 2018Inventors: Tatsuya KATOH, Masanori ITO, Masaki KUTSUNA
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Publication number: 20180035549Abstract: A method of manufacturing a circuit substrate includes the steps of preparing a conductor paste in which a powder of at least one of a metal boride and a metal silicide is added to a powder of silver (Ag), applying the conductor paste to a surface of a ceramic substrate which has been fired, applying a glass paste to the surface of the ceramic substrate after applying the conductor paste, firing the conductor paste applied to the surface so as to form a conductor trace, and firing the glass paste applied to the surface so as to form a coating layer.Type: ApplicationFiled: January 8, 2016Publication date: February 1, 2018Inventors: Tatsuya KATOH, Masanori ITO, Masaki KUTSUNA
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Publication number: 20180027653Abstract: A ceramic substrate includes a ceramic layer mainly formed of a glass ceramic and a conductor trace mainly formed of silver (Ag). In an adjacent region located adjacent to the conductor trace, the concentration of boron atoms (B) contained in the ceramic layer increases toward the conductor trace.Type: ApplicationFiled: January 8, 2016Publication date: January 25, 2018Inventors: Tatsuya KATOH, Masanori ITO, Masaki KUTSUNA
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Publication number: 20180014408Abstract: A method for manufacturing a ceramic substrate containing glass includes a firing step in which an unfired silver-based conductor material is disposed on an unfired ceramic layer and is fired. The unfired silver-based conductor material contains at least one of a metal boride and a metal silicide.Type: ApplicationFiled: January 8, 2016Publication date: January 11, 2018Inventors: Tatsuya KATOH, Masanori ITO, Masaki KUTSUNA
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Patent number: 9859482Abstract: To provide an LED lighting apparatus and a method for manufacturing the same that can improve the bonding strength between an aluminum substrate and a printed wiring substrate. An LED lighting apparatus and a method for manufacturing the same, the LED lighting apparatus includes an aluminum substrate, a plurality of reflectivity-enhanced layers formed on the aluminum substrate, an LED device bonded on said plurality of reflectivity-enhanced layers, a printed wiring substrate bonded onto a region on the aluminum substrate other than a region where the plurality of reflectivity-enhanced layers are formed, a wire for connecting between the printed wiring substrate and the LED device, a frame member formed so as to surround said LED device, and a phosphor resin deposited over a region inside the frame member.Type: GrantFiled: March 2, 2017Date of Patent: January 2, 2018Assignees: Citizen Electronics Co., Ltd., Citizen Watch Co., Ltd.Inventors: Tatsuya Katoh, Sadato Imai
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Publication number: 20170324997Abstract: A video display system is a video display system which includes an information processing device and a portable terminal device. The information processing device includes: a reception unit configured to receive video contents; a conversion unit configured to convert video contents received by the reception unit into video data to be transmitted to the portable terminal device; a transmission unit configured to transmit video data obtained through a conversion by the conversion unit to the portable terminal device using a wireless communication via a public network. The portable terminal device includes: an acquisition unit configured to acquire video data transmitted from the information processing device using a wireless communication via a public network; and a terminal transmission unit configured to transmit video data acquired by the acquisition unit to a display device using a wireless communication.Type: ApplicationFiled: November 16, 2015Publication date: November 9, 2017Inventors: Tsuneaki UMEMOTO, Norikazu HOHSHI, Tatsuya KATOH
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Publication number: 20170179357Abstract: To provide an LED lighting apparatus and a method for manufacturing the same that can improve the bonding strength between an aluminum substrate and a printed wiring substrate. An LED lighting apparatus and a method for manufacturing the same, the LED lighting apparatus includes an aluminum substrate, a plurality of reflectivity-enhanced layers formed on the aluminum substrate, an LED device bonded on said plurality of reflectivity-enhanced layers, a printed wiring substrate bonded onto a region on the aluminum substrate other than a region where the plurality of reflectivity-enhanced layers are formed, a wire for connecting between the printed wiring substrate and the LED device, a frame member formed so as to surround said LED device, and a phosphor resin deposited over a region inside the frame member.Type: ApplicationFiled: March 2, 2017Publication date: June 22, 2017Applicants: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.Inventors: TATSUYA KATOH, SADATO IMAI
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Patent number: 9620684Abstract: To provide an LED lighting apparatus and a method for manufacturing the same that can improve the bonding strength between an aluminum substrate and a printed wiring substrate. An LED lighting apparatus and a method for manufacturing the same, the LED lighting apparatus includes an aluminum substrate, a plurality of reflectivity-enhanced layers formed on the aluminum substrate, an LED device bonded on said plurality of reflectivity-enhanced layers, a printed wiring substrate bonded onto a region on the aluminum substrate other than a region where the plurality of reflectivity-enhanced layers are formed, a wire for connecting between the printed wiring substrate and the LED device, a frame member formed so as to surround said LED device, and a phosphor resin deposited over a region inside the frame member.Type: GrantFiled: April 15, 2015Date of Patent: April 11, 2017Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.Inventors: Tatsuya Katoh, Sadato Imai
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Patent number: D771579Type: GrantFiled: November 21, 2014Date of Patent: November 15, 2016Assignees: Citizens Electronics Co., Ltd., Citizens Holdings Co., Ltd.Inventors: Hiroaki Eguchi, Sadato Imai, Tatsuya Katoh, Takuya Funakubo, Takeru Ohmori