Patents by Inventor Mika MATSUMOTO
Mika MATSUMOTO 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: 11931979Abstract: A tire vulcanization mold in which a surface roughness in the groove molding portion of the tread molding surface is made smaller than a surface roughness in the land portion molding portion, in which a surface roughness in the groove molding portion is minimized to 0.12 ?m or less in a range including at least a main groove molding portion, and in which a surface roughness in the land portion molding portion is made to be 3.2 ?m or more, is used to manufacture a tire, and when cleaning the tread molding surface, the tread molding surface is irradiated with a laser beam to remove contaminant adhered to the tread molding surface.Type: GrantFiled: July 1, 2020Date of Patent: March 19, 2024Assignee: The Yokohama Rubber Co., LTD.Inventors: Tsubasa Kitahara, Yoshiaki Matsumoto, Mika Nagashima, Mitsuo Tsuji, Yoshinori Izumi, Rinko Kushida, Koichiro Miyoshi
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Publication number: 20230207747Abstract: A light emission device including a light emitting element having a light emission peak wavelength in a range of 400 nm or more and 490 nm or less; and a fluorescent member including a first fluorescent material having a light emission peak wavelength in a range of 510 nm or more and less than 580 nm, a second fluorescent material having a light emission peak wavelength in a range of 580 nm or more and 680 nm or less and a full width at half maximum of 15 nm or more and 100 nm or less, and a third fluorescent material having a light emission peak wavelength in a range of 600 nm or more and 650 nm or less and a full width at half maximum of 14 nm or less, and having a melanopic ratio (MR) value in a specified range at a certain correlated color temperature.Type: ApplicationFiled: February 17, 2021Publication date: June 29, 2023Applicant: NICHIA CORPORATIONInventors: Mika MATSUMOTO, Kazushige FUJIO, Atsushi BANDO
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Patent number: 11655963Abstract: A light emitting device comprises a light emitting element having a light emission peak wavelength in a range of 400 nm or more and 490 nm or less and a first fluorescent material having a light emission peak wavelength in a range of 570 nm or more and 680 nm or less, and emits light having a correlated color temperature being 1,950 K or less, an average color rendering index Ra being 51 or more, a full width at half maximum of a light emission peak having a maximum light emission intensity in a light emission spectrum of the light emitting device being 110 nm or less, and a first glare index Ls1/L that is a ratio of a first effective radiance Ls1 to a luminance L being 0.493 or less, wherein Ls1 and L are as defined in the disclosure.Type: GrantFiled: April 26, 2022Date of Patent: May 23, 2023Assignee: NICHIA CORPORATIONInventors: Mika Matsumoto, Kazushige Fujio
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Publication number: 20220349553Abstract: A light emitting device comprises a light emitting element having a light emission peak wavelength in a range of 400 nm or more and 490 nm or less and a first fluorescent material having a light emission peak wavelength in a range of 570 nm or more and 680 nm or less, and emits light having a correlated color temperature being 1,950 K or less, an average color rendering index Ra being 51 or more, a full width at half maximum of a light emission peak having a maximum light emission intensity in a light emission spectrum of the light emitting device being 110 nm or less, and a first glare index Ls1/L that is a ratio of a first effective radiance Ls1 to a luminance L being 0.493 or less, wherein Ls1 and L are as defined in the disclosure.Type: ApplicationFiled: April 26, 2022Publication date: November 3, 2022Applicant: NICHIA CORPORATIONInventors: Mika MATSUMOTO, Kazushige FUJIO
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Publication number: 20220349533Abstract: A light emitting device comprises a light emitting element having a light emission peak wavelength in a range of 400 nm or more and 490 nm or less and a first fluorescent material having a light emission peak wavelength in a range of 570 nm or more and 680 nm or less, and emits light having a correlated color temperature being 1,950 K or less, an average color rendering index Ra being 70 or more, a full width at half maximum of a light emission peak having the maximum light emission intensity being 110 nm or less, and a ratio B/L of an effective radiance B to a luminance L being 0.151 or less, wherein the luminance of light emitted by the light emitting device in a range of 300 nm or more and 800 nm or less when B and L is as defined in the disclosure.Type: ApplicationFiled: April 26, 2022Publication date: November 3, 2022Applicant: NICHIA CORPORATIONInventors: Mika MATSUMOTO, Kazushige FUJIO
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Publication number: 20210289711Abstract: An output of light suitable for growing plants is controlled using a white light source. A growing system including a greenhouse and a plurality of lighting devices disposed above a plant to be grown in the greenhouse and utilizing natural light includes a plurality of white light sources, a plurality of auxiliary light sources each of which is configured to emit red light and far-red light, and an illumination controller configured to control a degree of emission of light from the white light sources or the auxiliary light sources of the plurality of lighting devices, the illumination controller configured to start or stop controlling emission of light from the white light sources or the auxiliary light sources according to sunrise or sunset.Type: ApplicationFiled: July 26, 2019Publication date: September 23, 2021Applicant: NICHIA CORPORATIONInventors: Mika MATSUMOTO, Kazushige FUJIO, Sadakazu WAKUI, Tomokazu SUZUKI, Masato FUJIWARA, Munetake FUKUNAGA
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Patent number: 10947353Abstract: A resin composition for insulating coating material, comprises: a polyimide resin and/or a precursor thereof; and a polymer having a heterocyclic ring at a side chain, wherein the content of the polymer having a heterocyclic ring at a side chain is 0.1 to 7 parts by weight relative to 100 parts by weight of the polyimide resin and/or the precursor thereof. By adding a prescribed amount of the polymer having a heterocyclic ring at a side chain, there can be obtained a resin composition for insulating coating material still maintaining heat resistance and together having excellent bending resistance.Type: GrantFiled: September 28, 2018Date of Patent: March 16, 2021Assignee: Mitsubishi Chemical CorporationInventors: Takeshi Kato, Akira Ishikubo, Yu Echigo, Mika Matsumoto, Jiro Sugiyama
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Publication number: 20190031844Abstract: A resin composition for insulating coating material, comprises: a polyimide resin and/or a precursor thereof; and a polymer having a heterocyclic ring at a side chain, wherein the content of the polymer having a heterocyclic ring at a side chain is 0.1 to 7 parts by weight relative to 100 parts by weight of the polyimide resin and/or the precursor thereof. By adding a prescribed amount of the polymer having a heterocyclic ring at a side chain, there can be obtained a resin composition for insulating coating material still maintaining heat resistance and together having excellent bending resistance.Type: ApplicationFiled: September 28, 2018Publication date: January 31, 2019Applicant: Mitsubishi Chemical CorporationInventors: Takeshi KATO, Akira ISHIKUBO, Yu ECHIGO, Mika MATSUMOTO, Jiro SUGIYAMA