Patents by Inventor MAI TAKASAKI
MAI TAKASAKI 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: 11485950Abstract: The present invention provides a cell stimulation device capable of uniformly electrically stimulating cells intended to be electrically stimulated, and of preventing medium components from decomposing and depositing. [Solution] The cell stimulation device according to the present invention is intended to stimulate the cells being cultured in a culture medium, and is characterized in that the cell stimulation device includes an electron emission element for feeding electric charges to the culture medium via a gas phase, and an electric charge collecting electrode for collecting the electric charges from the culture medium, the electron emission element includes a lower electrode, a surface electrode, and an intermediate layer disposed between the lower electrode and the surface electrode, and the electric charge collecting electrode is disposed so as to be contactable with the culture medium.Type: GrantFiled: October 4, 2018Date of Patent: November 1, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Hiroyuki Hirakawa, Haruo Yamamoto, Tadashi Iwamatsu, Yasuhiro Sakamoto, Hiroyuki Yamaji, Kohji Shinkawa, Mai Takasaki, Shohei Komaru, Fumiaki Sugimori
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Patent number: 11322786Abstract: An air electrode includes a current collector, a catalyst layer, and a water repellent membrane provided in this order. The catalyst layer has a first face in contact with either one of the current collector and the water repellent membrane, a second face in contact with either other of the current collector or the water repellent membrane, and a plurality of through holes, through which the first face and the second face communicate with each other. The through holes each have a constriction with an inner diameter smaller than either of an opening diameter in the first face and an opening diameter in the second face.Type: GrantFiled: November 16, 2020Date of Patent: May 3, 2022Assignee: SHARP KABUSHIKI KAISHAInventors: Mai Takasaki, Keigo Mitamura, Hiroyuki Yamaji, Fumitoshi Sugino, Hirotaka Mizuhata, Akihito Yoshida
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Publication number: 20210376334Abstract: A metal-air battery 1 includes an air electrode and a negative electrode. The negative electrode includes a collector carrying an active material thereon. The collector is formed by bending a plate with through holes in a wavy way, and a bending height of the collector in a thickness direction of the negative electrode is larger than a thickness of the plate.Type: ApplicationFiled: April 30, 2021Publication date: December 2, 2021Inventors: HIROYUKI HIRAKAWA, HIROYUKI YAMAJI, MAI TAKASAKI, FUMITOSHI SUGINO, HIROTAKA MIZUHATA, SHINOBU TAKENAKA
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Publication number: 20210159561Abstract: An air electrode includes a current collector, a catalyst layer, and a water repellent membrane provided in this order. The catalyst layer has a first face in contact with either one of the current collector and the water repellent membrane, a second face in contact with either other of the current collector or the water repellent membrane, and a plurality of through holes, through which the first face and the second face communicate with each other. The through holes each have a constriction with an inner diameter smaller than either of an opening diameter in the first face and an opening diameter in the second face.Type: ApplicationFiled: November 16, 2020Publication date: May 27, 2021Inventors: MAI TAKASAKI, KEIGO MITAMURA, HIROYUKI YAMAJI, FUMITOSHI SUGINO, HIROTAKA MIZUHATA, AKIHITO YOSHIDA
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Patent number: 10782265Abstract: An analysis apparatus includes an ionization section, an ion separation section, and an ion detection section. The ionization section generates one or more sample component-derived ions. The ion separation section separates the ions in accordance with mobility of the ions. The ion detection section detects the ion which passes through the ion separation section. The ionization section includes a reaction chamber and an electron emission element. A sample is introduced to the reaction chamber. The electron emission element emits an electron to the reaction chamber.Type: GrantFiled: March 22, 2019Date of Patent: September 22, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Shohei Komaru, Fumiaki Sugimori, Tadashi Iwamatsu, Chika Hirakawa, Mai Takasaki
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Patent number: 10763068Abstract: An electron emitting device (100) includes a first electrode (12), a second electrode (52), and a semi-conductive layer (30) provided between the first electrode (12) and the second electrode (52). The semi-conductive layer (30) includes a porous alumina layer (32) having a plurality of pores (34) and silver (42) supported in the plurality of pores (34) of the porous alumina layer (32).Type: GrantFiled: May 15, 2018Date of Patent: September 1, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Hidekazu Hayashi, Tokio Taguchi, Kenichiro Nakamatsu, Tadashi Iwamatsu, Kohji Shinkawa, Mai Takasaki, Toshihiro Kaneko, Atsushi Niinoh
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Publication number: 20200255788Abstract: The present invention provides a cell stimulation device capable of uniformly electrically stimulating cells intended to be electrically stimulated, and of preventing medium components from decomposing and depositing. [Solution] The cell stimulation device according to the present invention is intended to stimulate the cells being cultured in a culture medium, and is characterized in that the cell stimulation device includes an electron emission element for feeding electric charges to the culture medium via a gas phase, and an electric charge collecting electrode for collecting the electric charges from the culture medium, the electron emission element includes a lower electrode, a surface electrode, and an intermediate layer disposed between the lower electrode and the surface electrode, and the electric charge collecting electrode is disposed so as to be contactable with the culture medium.Type: ApplicationFiled: October 4, 2018Publication date: August 13, 2020Inventors: HIROYUKI HIRAKAWA, HARUO YAMAMOTO, TADASHI IWAMATSU, YASUHIRO SAKAMOTO, HIROYUKI YAMAJI, KOHJI SHINKAWA, MAI TAKASAKI, SHOHEI KOMARU, FUMIAKI SUGIMORI
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Patent number: 10692680Abstract: A method of producing an electron emitting device includes: step A of providing an aluminum substrate or providing an aluminum layer supported by a substrate; step B of anodizing a surface of the aluminum substrate or a surface of the aluminum layer to form a porous alumina layer having a plurality of pores; step C of applying Ag nanoparticles in the plurality of pores to allow the Ag nanoparticles to be supported in the plurality of pores; step D of, after step C, applying a dielectric layer-forming solution onto substantially the entire surface of the aluminum substrate or the aluminum layer, the dielectric layer-forming solution containing, in an amount of not less than 7 mass % but less than 20 mass %, a polymerization product having siloxane bonds; step E of, after step D, at least reducing a solvent contained in the dielectric layer-forming solution to form the dielectric layer; and step F of forming an electrode on the dielectric layer.Type: GrantFiled: March 29, 2019Date of Patent: June 23, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Kenichiro Nakamatsu, Tokio Taguchi, Kohji Shinkawa, Mai Takasaki, Tadashi Iwamatsu
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Patent number: 10643815Abstract: Provided are an electron emission device having a novel structure and being capable of improving characteristics and/or extending a lifetime of a related-art electron emission device, and a method of manufacturing the electron emission device.Type: GrantFiled: September 11, 2018Date of Patent: May 5, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Kenichiro Nakamatsu, Hidekazu Hayashi, Tokio Taguchi, Tadashi Iwamatsu, Kohji Shinkawa, Mai Takasaki, Toshihiro Kaneko, Atsushi Niinoh
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Publication number: 20200075285Abstract: An electron emitting device (100) includes a first electrode (12), a second electrode (52), and a semi-conductive layer (30) provided between the first electrode (12) and the second electrode (52). The semi-conductive layer (30) includes a porous alumina layer (32) having a plurality of pores (34) and silver (42) supported in the plurality of pores (34) of the porous alumina layer (32).Type: ApplicationFiled: May 15, 2018Publication date: March 5, 2020Inventors: Hidekazu HAYASHI, Tokio TAGUCHI, Kenichiro NAKAMATSU, Tadashi IWAMATSU, Kohji SHINKAWA, Mai TAKASAKI, Toshihiro KANEKO, Atsushi NIINOH
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Publication number: 20190302055Abstract: An analysis apparatus includes an ionization section, an ion separation section, and an ion detection section. The ionization section generates one or more sample component-derived ions. The ion separation section separates the ions in accordance with mobility of the ions. The ion detection section detects the ion which passes through the ion separation section. The ionization section includes a reaction chamber and an electron emission element. A sample is introduced to the reaction chamber. The electron emission element emits an electron to the reaction chamber.Type: ApplicationFiled: March 22, 2019Publication date: October 3, 2019Inventors: SHOHEI KOMARU, FUMIAKI SUGIMORI, TADASHI IWAMATSU, CHIKA HIRAKAWA, MAI TAKASAKI
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Publication number: 20190304732Abstract: A method of producing an electron emitting device includes: step A of providing an aluminum substrate or providing an aluminum layer supported by a substrate; step B of anodizing a surface of the aluminum substrate or a surface of the aluminum layer to form a porous alumina layer having a plurality of pores; step C of applying Ag nanoparticles in the plurality of pores to allow the Ag nanoparticles to be supported in the plurality of pores; step D of, after step C, applying a dielectric layer-forming solution onto substantially the entire surface of the aluminum substrate or the aluminum layer, the dielectric layer-forming solution containing, in an amount of not less than 7 mass % but less than 20 mass %, a polymerization product having siloxane bonds; step E of, after step D, at least reducing a solvent contained in the dielectric layer-forming solution to form the dielectric layer; and step F of forming an electrode on the dielectric layer.Type: ApplicationFiled: March 29, 2019Publication date: October 3, 2019Inventors: Kenichiro NAKAMATSU, Tokio TAGUCHI, Kohji SHINKAWA, Mai TAKASAKI, Tadashi IWAMATSU
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Publication number: 20190080870Abstract: Provided are an electron emission device having a novel structure and being capable of improving characteristics and/or extending a lifetime of a related-art electron emission device, and a method of manufacturing the electron emission device.Type: ApplicationFiled: September 11, 2018Publication date: March 14, 2019Inventors: KENICHIRO NAKAMATSU, HIDEKAZU HAYASHI, TOKIO TAGUCHI, TADASHI IWAMATSU, KOHJI SHINKAWA, MAI TAKASAKI, TOSHIHIRO KANEKO, ATSUSHI NIINOH