Patents by Inventor Kazuhiro Yukikata
Kazuhiro Yukikata 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: 11833621Abstract: An iodine-containing cyclic compound including no carboxy group and including one ring skeleton or a plurality of ring skeletons forming a fused ring in one molecule, is provided. The ring of the ring skeleton includes only a carbon atom, or a carbon atom, and a nitrogen atom and/or an oxygen atom, and an iodine atom is bonded to at least one of the atoms constituting the ring of the ring skeleton.Type: GrantFiled: April 27, 2019Date of Patent: December 5, 2023Assignee: KOKI COMPANY LIMITEDInventors: Kazuhiro Yukikata, Noriyoshi Uchida
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Patent number: 11806817Abstract: A flux according to the present invention is a flux for soldering, the flux including: an unsaturated aliphatic alcohol having one unsaturated bond, a thixotropic agent, and a solvent, in which the unsaturated aliphatic alcohol includes oleyl alcohol, and a content of the oleyl alcohol is 2.0 mass % or more and 12.0 mass % or less based on the entire flux.Type: GrantFiled: September 22, 2021Date of Patent: November 7, 2023Assignee: KOKI Company LimitedInventors: Kazuhiro Yukikata, Takefumi Arai, Yuri Misumi
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Patent number: 11806818Abstract: A flux according to the present invention is a halogen-free flux used for soldering that includes: a thixotropic agent a polyamide compound in which one endothermic peak or all of endothermic peaks obtained by differential thermal analysis are observed within a range of 130 to 200° C.; and an activator comprising an isocyanuric acid derivative, in which a content of the isocyanuric acid derivative is 5.0 mass % or less based on the entire flux.Type: GrantFiled: June 26, 2020Date of Patent: November 7, 2023Assignee: KOKI Company LimitedInventors: Kazuhiro Yukikata, Takefumi Arai, Masashige Hayakawa
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Publication number: 20230103270Abstract: An iodine-containing cyclic compound including no carboxy group and including one ring skeleton or a plurality of ring skeletons forming a fused ring in one molecule, is provided. The ring of the ring skeleton includes only a carbon atom, or a carbon atom, and a nitrogen atom and/or an oxygen atom, and an iodine atom is bonded to at least one of the atoms constituting the ring of the ring skeleton.Type: ApplicationFiled: April 27, 2019Publication date: March 30, 2023Applicant: KOKI COMPANY LIMITEDInventors: Kazuhiro Yukikata, Noriyoshi Uchida
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Publication number: 20230090002Abstract: A flux according to the present invention is a flux for soldering, the flux including: an unsaturated aliphatic alcohol having one unsaturated bond, a thixotropic agent, and a solvent, in which the unsaturated aliphatic alcohol includes oleyl alcohol, and a content of the oleyl alcohol is 2.0 mass % or more and 12.0 mass % or less based on the entire flux.Type: ApplicationFiled: September 22, 2021Publication date: March 23, 2023Inventors: Kazuhiro YUKIKATA, Takefumi ARAI, Yuri MISUMI
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Patent number: 11541485Abstract: A flux according to the present invention includes a phosphine oxide. It is thereby possible to provide a flux capable of improving solder wettability, a resin flux cored solder including the flux, and a solder paste including the flux.Type: GrantFiled: June 29, 2018Date of Patent: January 3, 2023Assignee: KOKI Company LimitedInventors: Kazuhiro Yukikata, Motohide Sasaki
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Patent number: 11447626Abstract: Containing an epoxy compound and a curing agent and containing a bisphenol E type epoxy resin as the epoxy compound in an amount of 25 mass % or more and 100 mass % or less relative to the total amount of the epoxy compound.Type: GrantFiled: November 1, 2018Date of Patent: September 20, 2022Assignee: KOKI COMPANY LIMITEDInventors: Takeshi Yahagi, Kazuhiro Yukikata, Koichi Sekiguchi, Yusuke Satoh, Tatsuya Baba, Mitsuyasu Furusawa
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Publication number: 20220266397Abstract: A flux according to the present invention is a halogen-free flux used for soldering that includes: a thixotropic agent a polyamide compound in which one endothermic peak or all of endothermic peaks obtained by differential thermal analysis are observed within a range of 130 to 200° C.; and an activator comprising an isocyanuric acid derivative, in which a content of the isocyanuric acid derivative is 5.0 mass % or less based on the entire flux.Type: ApplicationFiled: June 26, 2020Publication date: August 25, 2022Inventors: Kazuhiro YUKIKATA, Takefumi ARAI, Masashige HAYAKAWA
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Publication number: 20220009042Abstract: A flux according to the present invention is a flux used for soldering that includes: a thixotropic agent including a polyamide compound that has UV absorption at the wavelength range of 240 to 500 nm in UV-visible absorption spectra; and a solvent including a glycol ether-based solvent.Type: ApplicationFiled: January 23, 2020Publication date: January 13, 2022Inventors: Kazuhiro YUKIKATA, Noriyoshi UCHIDA
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Publication number: 20210086317Abstract: An iodine-containing cyclic compound including no carboxy group and including one ring skeleton or a plurality of ring skeletons forming a fused ring in one molecule, is provided. The ring of the ring skeleton includes only a carbon atom, or a carbon atom, and a nitrogen atom and/or an oxygen atom, and an iodine atom is bonded to at least one of the atoms constituting the ring of the ring skeleton.Type: ApplicationFiled: April 27, 2019Publication date: March 25, 2021Applicant: KOKI COMPANY LIMITEDInventors: Kazuhiro Yukikata, Noriyoshi Uchida
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Patent number: 10888960Abstract: Provided is a solder alloy that contains 0.01 mass % or more and 0.1 mass % or less of Fe, 0.005 mass % or more and less than 0.02 mass % of Co, 0.1 mass % or more and 4.5 mass % or less of Ag, 0.1 mass % or more and 0.8 mass % or less of Cu, and the balance being Sn.Type: GrantFiled: September 30, 2016Date of Patent: January 12, 2021Assignee: KOKI Company LimitedInventors: Kazuhiro Yukikata, Mitsuyasu Furusawa, Kimiaki Mori
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Publication number: 20200325326Abstract: Containing an epoxy compound and a curing agent and containing a bisphenol E type epoxy resin as the epoxy compound in an amount of 25 mass % or more and 100 mass % or less relative to the total amount of the epoxy compound.Type: ApplicationFiled: November 1, 2018Publication date: October 15, 2020Applicant: KOKI COMPANY LIMITEDInventors: Takeshi Yahagi, Kazuhiro Yukikata, Koichi Sekiguchi, Yusuke Satoh, Tatsuya Baba, Mitsuyasu Furusawa
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Patent number: 10702956Abstract: Provided is a flux activator containing a halogen compound represented by formula 1 below: where X1 and X2 represent different halogen atoms, R1 and R2 are each a group represented by any one of formulas —OH, —O—R3, —O—C(?O)—R4, and —O—C(?O)—NH—R5, R1 and R2 optionally represent the same group or different groups, R3, R4, and R5 are each an aromatic hydrocarbon group having 1 to 18 carbon atoms or an aliphatic hydrocarbon group having 1 to 18 carbon atoms, and R3, R4, and R5 optionally represent the same group or different groups.Type: GrantFiled: February 5, 2016Date of Patent: July 7, 2020Assignee: KOKI COMPANY LIMITEDInventors: Kazuhiro Yukikata, Yuusuke Sato, Junichi Aoki, Mitsuyasu Furusawa, Kimiaki Mori
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Publication number: 20200114477Abstract: A flux according to the present invention includes a phosphine oxide. It is thereby possible to provide a flux capable of improving solder wettability, a resin flux cored solder including the flux, and a solder paste including the flux.Type: ApplicationFiled: June 29, 2018Publication date: April 16, 2020Inventors: Kazuhiro YUKIKATA, Motohide SASAKI
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Publication number: 20190184500Abstract: Provided is a solder alloy that contains 0.01 mass % or more and 0.1 mass % or less of Fe, 0.005 mass % or more and less than 0.02 mass % of Co, 0.1 mass % or more and 4.5 mass % or less of Ag, 0.1 mass % or more and 0.8 mass % or less of Cu, and the balance being Sn.Type: ApplicationFiled: September 30, 2016Publication date: June 20, 2019Inventors: Kazuhiro YUKIKATA, Mitsuyasu FURUSAWA, Kimiaki MORI
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Publication number: 20180015576Abstract: Provided is a flux activator containing a halogen compound represented by formula 1 below: where X1 and X2 represent different halogen atoms, R1 and R2 are each a group represented by any one of formulas —OH, —O—R3, —O—C(?O)—R4, and —O—C(?O)—NH—R5, R1 and R2 optionally represent the same group or different groups, R3, R4, and R5 are each an aromatic hydrocarbon group having 1 to 18 carbon atoms or an aliphatic hydrocarbon group having 1 to 18 carbon atoms, and R3, R4, and R5 optionally represent the same group or different groups.Type: ApplicationFiled: February 5, 2016Publication date: January 18, 2018Inventors: Kazuhiro Yukikata, Yuusuke Sato, Junichi Aoki, Mitsuyasu Furusawa, Kimiaki Mori
