Patents by Inventor Yasuo Fujikawa
Yasuo Fujikawa 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: 20200329539Abstract: A lighting control system includes: a light fixture including a first light emitting device configured to emit light having a correlated color temperature in the range of ±100 K from a prescribed value, a second light emitting device configured to emit light having a correlated color temperature in the range of ±100 K from the prescribed value, and an emission controller configured to cause the light fixture to irradiate illumination light by controlling irradiation percentages of the light emitted from the first light emitting device and the light emitted from the second light emitting device; and an information processing apparatus communicably connected to the light fixture, the information processing apparatus comprising a dimming controller configured to change the irradiation percentages of the light emitted from the first light emitting device and the second light emitting device in accordance with a time of day by transmitting dimming instructions.Type: ApplicationFiled: April 6, 2020Publication date: October 15, 2020Applicant: NICHIA CORPORATIONInventors: Kei HARAGUCHI, Kenji ASAI, Munetake FUKUNAGA, Yasuo FUJIKAWA
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Patent number: 10801704Abstract: A light emitting device includes a plurality of oblong flexible substrates, each flexible substrate comprising a sheet-shaped base body and a wiring pattern formed on one face of the base body, and each flexible substrate having a plurality of light emitting sections disposed thereon; a plurality of a reflective layers, each reflective layer being disposed at a periphery of a respective light emitting section above a respective flexible substrate; an insulating reflective sheet made of a light reflecting resin, the reflective sheet having a plurality of through holes located such that the light emitting sections and at least a portion of the reflective layers are exposed via the through holes; and a plurality of adhesive members, each adhesive member adhering a respective flexible substrate to the reflective sheet in regions where the reflective layer is not formed.Type: GrantFiled: May 2, 2019Date of Patent: October 13, 2020Assignee: NICHIA CORPORATIONInventors: Yasuo Fujikawa, Takuya Wasa, Tomohiro Ikeda, Yohei Inayoshi, Motokazu Yamada
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Publication number: 20200297469Abstract: A method for treating spermatozoa of an animal includes: irradiating the spermatozoa with light having wavelengths in a range of 390-420 nm at a fluence effective to increase motility of the spermatozoa by 75% or more.Type: ApplicationFiled: March 20, 2020Publication date: September 24, 2020Applicant: NICHIA CORPORATIONInventors: Hirofumi NISHIZONO, Yasuo FUJIKAWA, Tomohiro TSURUMOTO
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Publication number: 20200270566Abstract: A method of cultivating algal cells of an algae belonging to a class selected from Chlorophyceae, Euglenophyceae, Bacillariophyceae and Haptophyceae includes: irradiating the algal cells with an artificial light having a ratio of (i) photon flux density in a wavelength range of 520-630 nm to (ii) photosynthetic photon flux density, that is 65% or more; and measuring a condition of the algal cells and/or a condition of an algal cell culture provided by cultivating the algal cells. Irradiation and non-irradiation of the algal cells with the artificial light are switched, or the photon flux density in the wavelength range of 520-630 nm is changed, according to the measured condition of the algal cells and/or the measured condition of the algal cell culture.Type: ApplicationFiled: February 26, 2020Publication date: August 27, 2020Applicants: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, NICHIA CORPORATIONInventors: Tomohisa HASUNUMA, Yuichi KATO, Yasuo FUJIKAWA, Tomohiro TSURUMOTO
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Publication number: 20190257499Abstract: A light emitting device includes a plurality of oblong flexible substrates, each flexible substrate comprising a sheet-shaped base body and a wiring pattern formed on one face of the base body, and each flexible substrate having a plurality of light emitting sections disposed thereon; a plurality of a reflective layers, each reflective layer being disposed at a periphery of a respective light emitting section above a respective flexible substrate; an insulating reflective sheet made of a light reflecting resin, the reflective sheet having a plurality of through holes located such that the light emitting sections and at least a portion of the reflective layers are exposed via the through holes; and a plurality of adhesive members, each adhesive member adhering a respective flexible substrate to the reflective sheet in regions where the reflective layer is not formed.Type: ApplicationFiled: May 2, 2019Publication date: August 22, 2019Applicant: NICHIA CORPORATIONInventors: Yasuo FUJIKAWA, Takuya WASA, Tomohiro IKEDA, Yohei INAYOSHI, Motokazu YAMADA
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Patent number: 10317050Abstract: A light emitting device includes a plurality of oblong flexible substrates, each flexible substrate comprising a sheet-shaped base body and a wiring pattern formed on one face of the base body, and each flexible substrate having a plurality of light emitting sections disposed thereon; a plurality of a reflective layers, each reflective layer being disposed at a periphery of a respective light emitting section above a respective flexible substrate; an insulating reflective sheet made of a light reflecting resin, the reflective sheet having a plurality of through holes located such that the light emitting sections and at least a portion of the reflective layers are exposed via the through holes; and a plurality of adhesive members, each adhesive member adhering a respective flexible substrate to the reflective sheet in regions where the reflective layer is not formed.Type: GrantFiled: February 21, 2018Date of Patent: June 11, 2019Assignee: NICHIA CORPORATIONInventors: Yasuo Fujikawa, Takuya Wasa, Tomohiro Ikeda, Yohei Inayoshi, Motokazu Yamada
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Publication number: 20190074419Abstract: A light emitting device includes a first substrate including a flexible first base member and a first wiring pattern provided on the first base member; a second substrate including a second base member and a second wiring pattern provided on the second base member; and a plurality of light emitting elements mounted on the first wiring pattern. The first substrate includes: a joining end portion that is located at a first, joining end of the first substrate, and that overlaps a portion of the second substrate, and a second end, other than the joining end, that does not overlap the second substrate. The first wiring pattern and the second wiring pattern do not face each other. An electrically conductive joining member is disposed across the first wiring pattern and the second wiring pattern, while partially covering the joining end portion of the first substrate.Type: ApplicationFiled: October 26, 2018Publication date: March 7, 2019Applicant: NICHIA CORPORATIONInventors: Yasuo FUJIKAWA, Takuya WASA, Yosuke NAKAYAMA
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Patent number: 10134966Abstract: A light emitting device includes a first substrate including a flexible first base member and a first wiring pattern provided on the first base member; a second substrate including a second base member and a second wiring pattern provided on the second base member; and a plurality of light emitting elements mounted on the first wiring pattern. The first substrate includes: a joining end portion that is located at a first, joining end of the first substrate, and that overlaps a portion of the second substrate, and a second end, other than the joining end, that does not overlap the second substrate. The first wiring pattern and the second wiring pattern do not face each other. An electrically conductive joining member is disposed across the first wiring pattern and the second wiring pattern, while partially covering the joining end portion of the first substrate.Type: GrantFiled: February 26, 2016Date of Patent: November 20, 2018Assignee: Nichia CorporationInventors: Yasuo Fujikawa, Takuya Wasa, Yosuke Nakayama
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Publication number: 20180180263Abstract: A light emitting device includes a plurality of oblong flexible substrates, each flexible substrate comprising a sheet-shaped base body and a wiring pattern formed on one face of the base body, and each flexible substrate having a plurality of light emitting sections disposed thereon; a plurality of a reflective layers, each reflective layer being disposed at a periphery of a respective light emitting section above a respective flexible substrate; an insulating reflective sheet made of a light reflecting resin, the reflective sheet having a plurality of through holes located such that the light emitting sections and at least a portion of the reflective layers are exposed via the through holes; and a plurality of adhesive members, each adhesive member adhering a respective flexible substrate to the reflective sheet in regions where the reflective layer is not formed.Type: ApplicationFiled: February 21, 2018Publication date: June 28, 2018Applicant: NICHIA CORPORATIONInventors: Yasuo FUJIKAWA, Takuya WASA, Tomohiro IKEDA, Yohei INAYOSHI, Motokazu YAMADA
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Patent number: 9951925Abstract: A light emitting device includes a reflective sheet having a light reflecting face; a plurality of oblong flexible substrates; and a plurality of light emitting sections disposed at intervals on a face of each of the flexible substrates. The plurality of the flexible substrates comprises a first group of flexible substrates that are lined up at intervals in a first direction and a second group of flexible substrates that are lined up at intervals in a second direction such that the flexible substrates of the second group intersect the flexible substrates of the first group. The first group and the second group are layered in a thickness direction and adhered to at least one face of the reflective sheet so as to expose the plurality of light emitting sections.Type: GrantFiled: February 26, 2016Date of Patent: April 24, 2018Assignee: NICHIA CORPORATIONInventors: Yasuo Fujikawa, Takuya Wasa
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Patent number: 9933140Abstract: A light emitting device includes a plurality of oblong flexible substrates, each flexible substrate comprising a sheet-shaped base body and a wiring pattern formed on one face of the base body, and each flexible substrate having a plurality of light emitting sections disposed thereon; a plurality of a reflective layers, each reflective layer being disposed at a periphery of a respective light emitting section above a respective flexible substrate; an insulating reflective sheet made of a light reflecting resin, the reflective sheet having a plurality of through holes located such that the light emitting sections and at least a portion of the reflective layers are exposed via the through holes; and a plurality of adhesive members, each adhesive member adhering a respective flexible substrate to the reflective sheet in regions where the reflective layer is not formed.Type: GrantFiled: February 26, 2016Date of Patent: April 3, 2018Assignee: NICHIA CORPORATIONInventors: Yasuo Fujikawa, Takuya Wasa, Tomohiro Ikeda, Yohei Inayoshi, Motokazu Yamada
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Patent number: 9784438Abstract: A connected body includes first and second light emitting devices and a connecting member. The first light emitting device includes a flexible first substrate member extending in a predetermined direction, a first light emitting element arranged on the first substrate member, and an electronic component arranged on a first end portion of the first substrate member with respect to the predetermined direction. The second light emitting device includes a flexible second substrate member extending in the predetermined direction, and a second light emitting element arranged on the second substrate member. The connecting member connecting the first end portion of the first substrate member and a second end portion of the second substrate member adjacent to the first end portion of the first substrate. A position of at least a part of the connecting member in the predetermined direction overlaps a position of the electronic component in the predetermined direction.Type: GrantFiled: September 18, 2013Date of Patent: October 10, 2017Assignee: Nichia CorporationInventors: Takeshi Tamura, Tomonori Ozaki, Yasuo Fujikawa
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Publication number: 20160254429Abstract: A light emitting device includes a first substrate including a flexible first base member and a first wiring pattern provided on the first base member; a second substrate including a second base member and a second wiring pattern provided on the second base member; and a plurality of light emitting elements mounted on the first wiring pattern. The first substrate includes: a joining end portion that is located at a first, joining end of the first substrate, and that overlaps a portion of the second substrate, and a second end, other than the joining end, that does not overlap the second substrate. The first wiring pattern and the second wiring pattern do not face each other. An electrically conductive joining member is disposed across the first wiring pattern and the second wiring pattern, while partially covering the joining end portion of the first substrate.Type: ApplicationFiled: February 26, 2016Publication date: September 1, 2016Applicant: NICHIA CORPORATIONInventors: Yasuo FUJIKAWA, Takuya WASA, Yosuke NAKAYAMA
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Publication number: 20160252231Abstract: A light emitting device includes a reflective sheet having a light reflecting face; a plurality of oblong flexible substrates; and a plurality of light emitting sections disposed at intervals on a face of each of the flexible substrates. The plurality of the flexible substrates comprises a first group of flexible substrates that are lined up at intervals in a first direction and a second group of flexible substrates that are lined up at intervals in a second direction such that the flexible substrates of the second group intersect the flexible substrates of the first group. The first group and the second group are layered in a thickness direction and adhered to at least one face of the reflective sheet so as to expose the plurality of light emitting sections.Type: ApplicationFiled: February 26, 2016Publication date: September 1, 2016Applicant: NICHIA CORPORATIONInventors: Yasuo FUJIKAWA, Takuya WASA
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Publication number: 20160252218Abstract: A light emitting device includes a plurality of oblong flexible substrates, each flexible substrate comprising a sheet-shaped base body and a wiring pattern formed on one face of the base body, and each flexible substrate having a plurality of light emitting sections disposed thereon; a plurality of a reflective layers, each reflective layer being disposed at a periphery of a respective light emitting section above a respective flexible substrate; an insulating reflective sheet made of a light reflecting resin, the reflective sheet having a plurality of through holes located such that the light emitting sections and at least a portion of the reflective layers are exposed via the through holes; and a plurality of adhesive members, each adhesive member adhering a respective flexible substrate to the reflective sheet in regions where the reflective layer is not formed.Type: ApplicationFiled: February 26, 2016Publication date: September 1, 2016Applicant: NICHIA CORPORATIONInventors: Yasuo FUJIKAWA, Takuya WASA, Tomohiro IKEDA, Yohei INAYOSHI, Motokazu YAMADA
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Patent number: 9385283Abstract: A light emitting device includes a light emitting device body and a protective member. The light emitting device body has a flexible base member, at least one light emitting element arranged on the base member, and a sealing resin member sealing the light emitting element. The protective member is disposed adjacent to the sealing resin member on the base member. The protective member has a height greater than a height of the sealing resin member.Type: GrantFiled: September 25, 2013Date of Patent: July 5, 2016Assignee: NICHIA CORPORATIONInventors: Takeshi Tamura, Tomonori Ozaki, Yasuo Fujikawa
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Patent number: 9231177Abstract: Provided is a light emitting device in which deterioration of the substrate member can be reduced. The light emitting device includes a base member mainly made of a resin, a plurality of wiring portions and arranged on the base member via an adhesive agent, a groove portion defined between adjacent wiring portions, and at least one light emitting element which is disposed straddling at least a part of the groove portion. The adhesive agent is applied covering the base member from the groove portion, and contains a light-shielding member. The light-shielding member shields the base member from light, for example at a specific wavelength, emitted from the at least one light emitting element.Type: GrantFiled: June 27, 2014Date of Patent: January 5, 2016Assignee: NICHIA CORPORATIONInventors: Hiroki Oguro, Motokazu Yamada, Yasuo Fujikawa
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Publication number: 20150338069Abstract: A connected body includes first and second light emitting devices and a connecting member. The first light emitting device includes a flexible first substrate member extending in a predetermined direction, a first light emitting element arranged on the first substrate member, and an electronic component arranged on a first end portion of the first substrate member with respect to the predetermined direction. The second light emitting device includes a flexible second substrate member extending in the predetermined direction, and a second light emitting element arranged on the second substrate member. The connecting member connecting the first end portion of the first substrate member and a second end portion of the second substrate member adjacent to the first end portion of the first substrate. A position of at least a part of the connecting member in the predetermined direction overlaps a position of the electronic component in the predetermined direction.Type: ApplicationFiled: September 18, 2013Publication date: November 26, 2015Inventors: Takeshi TAMURA, Tomonori OZAKI, Yasuo FUJIKAWA
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Patent number: 8933621Abstract: A light emitting device includes a substrate including a base member, a plurality of wiring portions disposed on a surface of the base member, a covering portion having openings respectively exposing a part of the wiring portions, a plurality of light emitting elements respectively electrically connected to the wiring portions exposed from the covering portion, and sealing members respectively sealing the light emitting elements. At least a part of the covering portion contains a light-storing material.Type: GrantFiled: September 25, 2013Date of Patent: January 13, 2015Assignee: Nichia CorporationInventors: Takeshi Tamura, Hiroaki Shozui, Yasuo Fujikawa
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Publication number: 20150001564Abstract: Provided is a light emitting device in which deterioration of the substrate member can be reduced. The light emitting device includes a base member mainly made of a resin, a plurality of wiring portions and arranged on the base member via an adhesive agent, a groove portion defined between adjacent wiring portions, and at least one light emitting element which is disposed straddling at least a part of the groove portion. The adhesive agent is applied covering the base member from the groove portion, and contains a light-shielding member. The light-shielding member shields the base member from light, for example at a specific wavelength, emitted from the at least one light emitting element.Type: ApplicationFiled: June 27, 2014Publication date: January 1, 2015Applicant: NICHIA CORPORATIONInventors: Hiroki OGURO, Motokazu YAMADA, Yasuo FUJIKAWA