Patents by Inventor Kenichi Ezaki
Kenichi Ezaki 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: 20230343522Abstract: Disclosed is a capacitor electrode including a conductive substrate and a flaky carbon that is electrically connected to the conductive substrate, the flaky carbon having an oxygen content of less than 5 mass % and a three-dimensional structure, wherein it is desired that the oxygen content of the flaky carbon is less than 2.6 mass %, and a log differential pore volume distribution of the capacitor electrode measured based on mercury porosimetry may have a maximum peak in a range of 0.3 ?m or more and 6 ?m or less.Type: ApplicationFiled: September 27, 2021Publication date: October 26, 2023Inventors: Chiho NOBUMORI, Kenichi EZAKI, Hitoshi ISHIMOTO
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Patent number: 11682770Abstract: Disclosed is a catalyst layer for a fuel cell that has good gas diffusion properties in the entire catalyst layer and in which coarsening of catalyst particles can be suppressed. The catalyst layer for a fuel cell includes fibrous conductive members and catalyst particles. The fibrous conductive members are inclined relative to the surface direction of the catalyst layer, and the length L of the fibrous conductive members and the thickness T of the catalyst layer satisfy the relational expression: L/T?3. Each of the catalyst particles includes a core portion and a shell portion that covers the core portion, and contains a component different from that of the core portion.Type: GrantFiled: December 26, 2018Date of Patent: June 20, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hitoshi Ishimoto, Kazuya Yamasaki, Shinichiro Imura, Takeshi Minamiura, Yukihiro Shimasaki, Kenichi Ezaki
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Publication number: 20220359899Abstract: A membrane electrode assembly for a fuel cell includes a catalyst layer having a first main surface and a second main surface, a gas diffusion layer disposed on a side of the first main surface, and an electrolyte membrane disposed on a side of the second main surface, wherein the gas diffusion layer includes a conductive material and a polymer resin, the conductive material comprises a fibrous carbon material, an average fiber diameter D of the fibrous carbon material is equal to or less than 25% of a thickness T of the catalyst layer, and in a cross section in a thickness direction of the catalyst layer, an arithmetic mean roughness Ra1 of the first main surface and an arithmetic mean roughness Ra2 of the second main surface satisfies the relation, Ra1>Ra2.Type: ApplicationFiled: June 24, 2022Publication date: November 10, 2022Inventors: Shinichiro IMURA, Takeshi MINAMIURA, Kenichi EZAKI, Tsutomu KAWASHIMA, Miyuki YOSHIMOTO
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Publication number: 20220336834Abstract: A membrane electrode assembly for a fuel cell, the membrane electrode assembly including an electrolyte membrane, and a first electrode and a second electrode sandwiching the electrolyte membrane, wherein the first electrode includes a first catalyst layer and a first gas diffusion layer in order from the electrolyte membrane side, the first gas diffusion layer includes a first fibrous conductive member and a first resin material, the first catalyst layer includes a second fibrous conductive member, catalyst particles, and a second resin material, when viewed from a stacking direction of the membrane electrode assembly, a first angle formed by the first fibrous conductive member and a main flow path of a gas supplied to the membrane electrode assembly is arbitrary, and a second angle formed by the second fibrous conductive member and the main flow path is 45° or less.Type: ApplicationFiled: June 24, 2022Publication date: October 20, 2022Inventors: Takeshi MINAMIURA, Kenichi EZAKI, Shinichiro IMURA, Tsutomu KAWASHIMA, Miyuki YOSHIMOTO
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Publication number: 20220165512Abstract: A capacitor electrode including a first carbon, and at least one of a second carbon and a metal porous body. The first carbon includes a graphene, and the second carbon includes short carbon fibers having an average length of 10 ?m or less and/or carbon particles having an average diameter of 0.1 ?m or less. The graphene is layered via the second carbon.Type: ApplicationFiled: March 19, 2020Publication date: May 26, 2022Inventors: Kenichi EZAKI, Chiho NOBUMORI, Takahiro YOSHINO, Hitoshi ISHIMOTO
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Patent number: 10978716Abstract: A gas diffusion layer for a fuel battery is used, which is configured by a porous member containing conductive particles, conductive fibers and a polymer resin as main components. An aggregate of the conductive fibers is formed inside the porous member, and an area ratio of the aggregate in any cross-section of the porous member is 0.5% or more and 8% or less. Further, a membrane electrode assembly including the gas diffusion layer for the fuel battery is used. Further, a fuel battery including the gas diffusion layer for the fuel battery is used.Type: GrantFiled: March 5, 2019Date of Patent: April 13, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tsutomu Kawashima, Yoshifumi Taguchi, Kenichi Ezaki
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Publication number: 20200335797Abstract: Disclosed is a catalyst layer for a fuel cell that has good gas diffusion properties in the entire catalyst layer and in which coarsening of catalyst particles can be suppressed. The catalyst layer for a fuel cell includes fibrous conductive members and catalyst particles. The fibrous conductive members are inclined relative to the surface direction of the catalyst layer, and the length L of the fibrous conductive members and the thickness T of the catalyst layer satisfy the relational expression: L/T?3. Each of the catalyst particles includes a core portion and a shell portion that covers the core portion, and contains a component different from that of the core portion.Type: ApplicationFiled: December 26, 2018Publication date: October 22, 2020Inventors: Hitoshi ISHIMOTO, Kazuya YAMASAKI, Shinichiro IMURA, Takeshi MINAMIURA, Yukihiro SHIMASAKI, Kenichi EZAKI
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Patent number: 10747324Abstract: A gesture input system (100) that accepts a user operation based on a motion of a portion of the body of a user and that produces an input signal indicating a direction of the motion and/or an amount of the motion of the portion of the body, includes a sensor (1) that detects the motion of the portion of the body of the user, a tactile feeling presenting apparatus (3) that presents a tactile feeling at a base point (61) set inside a space, and a control apparatus (2) that sets a chasing point on the portion (50) of the body detected by the sensor and that produces the input signal based on a variation of the relative positional relation between the chasing point and the base point. The tactile feeling presenting apparatus (3) continuously presents the tactile feeling at the base point (61) during a time period for the gesture input system to be in an input acceptable state where the gesture input system is able to accept the user operation.Type: GrantFiled: October 27, 2017Date of Patent: August 18, 2020Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Daisuke Wakuda, Takashi Matsumoto, Kenichi Ezaki
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Patent number: 10558271Abstract: A system includes a sensor that detects motions of a first portion and a second portion of a body of a user, a controller that sets an association relationship between a coordinate system of a real space and a coordinate system of a virtual space in response to the motion of the first portion and receives an operation for an object in the virtual space in response to a position and the motion of the second portion, and a notification device that contactlessly notifies a third portion of the body of prescribed information.Type: GrantFiled: January 27, 2017Date of Patent: February 11, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Daisuke Wakuda, Kenichi Ezaki, Takashi Matsumoto
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Publication number: 20190379064Abstract: A gas diffusion layer for a fuel battery is used, which is configured by a porous member containing conductive particles, conductive fibers and a polymer resin as main components. An aggregate of the conductive fibers is formed inside the porous member, and an area ratio of the aggregate in any cross-section of the porous member is 0.5% or more and 8% or less. Further, a membrane electrode assembly including the gas diffusion layer for the fuel battery is used. Further, a fuel battery including the gas diffusion layer for the fuel battery is used.Type: ApplicationFiled: March 5, 2019Publication date: December 12, 2019Inventors: TSUTOMU KAWASHIMA, YOSHIFUMI TAGUCHI, KENICHI EZAKI
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Patent number: 10481697Abstract: A system includes: a sensor that detects motions of a first portion and a second portion of a body of a user; a controller that sets a base point of the second portion in response to the motion of the first portion and receives a prescribed input in response to the motion of the second portion with respect to the base point; and a notification device that contactlessly notifies a third portion of the body that the base point is set.Type: GrantFiled: January 26, 2017Date of Patent: November 19, 2019Assignee: PANASONIC INTELLECUTAL PROPERTY MANAGEMENT CO., LTD.Inventors: Daisuke Wakuda, Kenichi Ezaki, Takashi Matsumoto
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Publication number: 20190243451Abstract: A gesture input system (100) that accepts a user operation based on a motion of a portion of the body of a user and that produces an input signal indicating a direction of the motion and/or an amount of the motion of the portion of the body, includes a sensor (1) that detects the motion of the portion of the body of the user, a tactile feeling presenting apparatus (3) that presents a tactile feeling at a base point (61) set inside a space, and a control apparatus (2) that sets a chasing point on the portion (50) of the body detected by the sensor and that produces the input signal based on a variation of the relative positional relation between the chasing point and the base point. The tactile feeling presenting apparatus (3) continuously presents the tactile feeling at the base point (61) during a time period for the gesture input system to be in an input acceptable state where the gesture input system is able to accept the user operation.Type: ApplicationFiled: October 27, 2017Publication date: August 8, 2019Inventors: Daisuke WAKUDA, Takashi MATSUMOTO, Kenichi EZAKI
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Patent number: 10078027Abstract: A pressure sensing element according to one aspect of the present disclosure includes a first electrode including at least one protrusion, a second electrode facing the at least one protrusion, and a dielectric disposed between the first electrode and the second electrode. The dielectric includes a first dielectric and a second dielectric. The first dielectric is disposed between a top of the at least one protrusion and the second electrode, and is in contact with each of the top of the at least one protrusion and the second electrode. The second dielectric is disposed between a first portion of the first electrode and the first dielectric. The first portion does not include the at least one protrusion. The at least one protrusion has a higher elastic modulus than the first dielectric.Type: GrantFiled: March 8, 2016Date of Patent: September 18, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shinobu Masuda, Keiji Noine, Tetsuyoshi Ogura, Kenichi Ezaki
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Patent number: 9904395Abstract: A pressure sensor according to an aspect of the present disclosure includes: a first pressure sensitive element including a first conductive layer including first projections having conductivity, first wiring layers, and a first dielectric layer provided between the first projections and the first wiring layers; and a second pressure sensitive element including a second conductive layer including second projections having conductivity, second wiring layers, and a second dielectric layer provided between the second projections and the second wiring layers. The first pressure sensitive element and the second pressure sensitive element are stacked on each other.Type: GrantFiled: March 21, 2016Date of Patent: February 27, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tetsuyoshi Ogura, Keiji Noine, Shinobu Masuda, Kenichi Ezaki
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Publication number: 20170269698Abstract: A system includes a sensor that detects motions of a first portion and a second portion of a body of a user, a controller that sets an association relationship between a coordinate system of a real space and a coordinate system of a virtual space in response to the motion of the first portion and receives an operation for an object in the virtual space in response to a position and the motion of the second portion, and a notification device that contactlessly notifies a third portion of the body of prescribed information.Type: ApplicationFiled: January 27, 2017Publication date: September 21, 2017Inventors: DAISUKE WAKUDA, KENICHI EZAKI, TAKASHI MATSUMOTO
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Publication number: 20170262062Abstract: A system includes: a sensor that detects motions of a first portion and a second portion of a body of a user; a controller that sets a base point of the second portion in response to the motion of the first portion and receives a prescribed input in response to the motion of the second portion with respect to the base point; and a notification device that contactlessly notifies a third portion of the body that the base point is set.Type: ApplicationFiled: January 26, 2017Publication date: September 14, 2017Inventors: DAISUKE WAKUDA, KENICHI EZAKI, TAKASHI MATSUMOTO
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Patent number: 9752940Abstract: A pressure sensing element of an aspect of the present disclosure includes a first electrode including at least one protrusion having elasticity; a second electrode facing the at least one protrusion; and a dielectric disposed between the first electrode and the second electrode and including a first dielectric and a second dielectric. The first dielectric is disposed between a top of the at least one protrusion and the second electrode, and is in contact with each of the top of the at least one protrusion and the second electrode. The second dielectric is disposed between a first portion of the first electrode, the first portion not including the at least one protrusion, and the first dielectric.Type: GrantFiled: December 8, 2015Date of Patent: September 5, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tetsuyoshi Ogura, Keiji Noine, Kenichi Ezaki, Shinobu Masuda
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Publication number: 20160283007Abstract: A pressure sensor according to an aspect of the present disclosure includes: a first pressure sensitive element including a first conductive layer including first projections having conductivity, first wiring layers, and a first dielectric layer provided between the first projections and the first wiring layers; and a second pressure sensitive element including a second conductive layer including second projections having conductivity, second wiring layers, and a second dielectric layer provided between the second projections and the second wiring layers. The first pressure sensitive element and the second pressure sensitive element are stacked on each other.Type: ApplicationFiled: March 21, 2016Publication date: September 29, 2016Inventors: TETSUYOSHI OGURA, KEIJI NOINE, SHINOBU MASUDA, KENICHI EZAKI
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Publication number: 20160283006Abstract: A pressure sensor according to one aspect of the present disclosure includes a first dielectric layer that has elasticity and has a first surface and a second surface which is on an opposite side from the first surface, a first conductor layer that is arranged on at least a region of the first surface, a second conductor layer that is arranged on the second surface, and a first time-domain reflectometer that is connected with the first conductor layer and the second conductor layer, and the region of the first surface is opposed to the second conductor layer.Type: ApplicationFiled: March 18, 2016Publication date: September 29, 2016Inventors: TETSUYOSHI OGURA, Kenichi Ezaki, Keiji Noine, Shinobu Masuda
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Publication number: 20160273987Abstract: A pressure sensing element according to one aspect of the present disclosure includes a first electrode including at least one protrusion, a second electrode facing the at least one protrusion, and a dielectric disposed between the first electrode and the second electrode. The dielectric includes a first dielectric and a second dielectric. The first dielectric is disposed between a top of the at least one protrusion and the second electrode, and is in contact with each of the top of the at least one protrusion and the second electrode. The second dielectric is disposed between a first portion of the first electrode and the first dielectric. The first portion does not include the at least one protrusion. The at least one protrusion has a higher elastic modulus than the first dielectric.Type: ApplicationFiled: March 8, 2016Publication date: September 22, 2016Inventors: SHINOBU MASUDA, KEIJI NOINE, TETSUYOSHI OGURA, KENICHI EZAKI