Patents by Inventor Masahiro Saegusa
Masahiro Saegusa 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: 11757098Abstract: A negative electrode includes a current collector and a negative electrode active material layer that is provided on the current collector and includes a negative electrode active material. The negative electrode active material includes a carbon material, and a surface of the negative electrode active material layer has a spectral reflectance Ra in a range of 7.0?Ra?10.8% at a wavelength of 550 nm.Type: GrantFiled: April 16, 2021Date of Patent: September 12, 2023Assignee: TDK CORPORATIONInventors: Keitaro Otsuki, Tetsu Sato, Masahiro Saegusa
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Patent number: 11539047Abstract: A positive electrode includes a positive electrode current collector, and a positive electrode active material layer that is provided on the positive electrode current collector and that includes a positive electrode active material, a conductive auxiliary agent, and a binder. A surface of the positive electrode active material layer has a reflectance Rc in a range of 2.0?Rc?12.0% at a wavelength of 550 nm. A lithium ion secondary battery includes: the positive electrode; a negative electrode including a negative electrode current collector and a negative electrode active material layer that is provided on the negative electrode current collector and that includes a negative electrode active material; a separator; and a nonaqueous electrolyte solution. A surface of the negative electrode active material layer has a reflectance Ra in a range of 7.5?Ra?16.0% at a wavelength of 550 nm.Type: GrantFiled: March 7, 2019Date of Patent: December 27, 2022Assignee: TDK CORPORATIONInventors: Keitaro Otsuki, Tetsu Sato, Masahiro Saegusa
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Publication number: 20220324120Abstract: A chuck unit includes a first pressure chamber and a second pressure chamber disposed on both sides of a piston for driving fingers. A valve unit includes a first output air flow path connected to one of the first and second pressure chambers, a second output air flow path connected to the other thereof, a first solenoid valve connected to the first output air flow path, and a second solenoid valve connected to the second output air flow path. The first solenoid valve connects the first output air flow path to an air supply source when energized and opens the first output air flow path to atmosphere when de-energized, and the second solenoid valve opens the second output air flow path to atmosphere when energized and connects the second output air flow path to the air supply source when de-energized.Type: ApplicationFiled: April 5, 2022Publication date: October 13, 2022Applicant: SMC CORPORATIONInventor: Masahiro SAEGUSA
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Publication number: 20220311009Abstract: There is provided an electrode for a lithium ion secondary battery including: a metal foil; a conductive layer formed on at least a part of the metal foil; and an active material layer formed on at least a part of a surface on a side opposite to a side of the metal foil of surfaces of the conductive layer, in which the conductive layer contains conductive particles and an insulating resin, the active material layer contains a first active material layer and a second active material layer, the first active material layer and the second active material layer are laminated such that the first active material layer is closer to the conductive layer, and the second active material layer has a porosity larger than a porosity of the first active material layer.Type: ApplicationFiled: March 23, 2022Publication date: September 29, 2022Applicant: TDK CORPORATIONInventors: Kazuma AKIMOTO, Masahiro SAEGUSA
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Publication number: 20210234168Abstract: A negative electrode includes a current collector and a negative electrode active material layer that is provided on the current collector and includes a negative electrode active material. The negative electrode active material includes a carbon material, and a surface of the negative electrode active material layer has a spectral reflectance Ra in a range of 7.0?Ra?10.8% at a wavelength of 550 nm.Type: ApplicationFiled: April 16, 2021Publication date: July 29, 2021Applicant: TDK CORPORATIONInventors: Keitaro OTSUKI, Tetsu SATO, Masahiro SAEGUSA
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Patent number: 10985371Abstract: A negative electrode includes a negative electrode current collector and a negative electrode active material layer that is provided on the negative electrode current collector and includes a negative electrode active material. The negative electrode active material includes a carbon material, and a surface of the negative electrode active material layer has a reflectance Ra in a range of 7.0?Ra?14.8% at a wavelength of 550 nm. A lithium ion secondary battery includes the negative electrode, a positive electrode, a separator, and a nonaqueous electrolyte solution. The nonaqueous electrolyte solution includes a nonaqueous solvent and an electrolyte, the nonaqueous solvent contains ethylene carbonate, and the ethylene carbonate is contained in a range of 10 to 30 vol. % in the entire nonaqueous solvent.Type: GrantFiled: March 7, 2019Date of Patent: April 20, 2021Assignee: TDK CORPORATIONInventors: Keitaro Otsuki, Tetsu Sato, Masahiro Saegusa
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Publication number: 20190280295Abstract: A positive electrode includes a positive electrode current collector, and a positive electrode active material layer that is provided on the positive electrode current collector and that includes a positive electrode active material, a conductive auxiliary agent, and a binder. A surface of the positive electrode active material layer has a reflectance Rc in a range of 2.0?Rc?12.0% at a wavelength of 550 nm. A lithium ion secondary battery includes: the positive electrode; a negative electrode including a negative electrode current collector and a negative electrode active material layer that is provided on the negative electrode current collector and that includes a negative electrode active material; a separator; and a nonaqueous electrolyte solution. A surface of the negative electrode active material layer has a reflectance Ra in a range of 7.5?Ra?16.0% at a wavelength of 550 nm.Type: ApplicationFiled: March 7, 2019Publication date: September 12, 2019Applicant: TDK CORPORATIONInventors: Keitaro OTSUKI, Tetsu SATO, Masahiro SAEGUSA
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Publication number: 20190280297Abstract: A negative electrode includes a negative electrode current collector and a negative electrode active material layer that is provided on the negative electrode current collector and includes a negative electrode active material. The negative electrode active material includes a carbon material, and a surface of the negative electrode active material layer has a reflectance Ra in a range of 7.0?Ra?14.8% at a wavelength of 550 nm. A lithium ion secondary battery includes the negative electrode, a positive electrode, a separator, and a nonaqueous electrolyte solution. The nonaqueous electrolyte solution includes a nonaqueous solvent and an electrolyte, the nonaqueous solvent contains ethylene carbonate, and the ethylene carbonate is contained in a range of 10 to 30 vol. % in the entire nonaqueous solvent.Type: ApplicationFiled: March 7, 2019Publication date: September 12, 2019Applicant: TDK CORPORATIONInventors: Keitaro OTSUKI, Tetsu SATO, Masahiro SAEGUSA
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Patent number: 10217984Abstract: A separator according to the embodiment includes a porous base material having a thermoplastic resin. The porous base material has a heat-resistant porous layer on at least one surface thereof. The heat-resistant porous layer contains inorganic particles, a resin, and sulfur. A lithium ion secondary battery according to the embodiment, includes: the separator interposed between a positive electrode and a negative electrode; and an electrolyte solution. The heat-resistant porous layer is disposed between the positive electrode and the porous base material. Sulfur is distributed unevenly in the heat-resistant porous layer so as to exist in larger amount near a surface thereof opposite to the porous base material.Type: GrantFiled: September 29, 2015Date of Patent: February 26, 2019Assignee: TDK CORPORATIONInventors: Masahiro Saegusa, Hirokazu Ohnuma, Bungo Sakurai
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Patent number: 10026305Abstract: A communication control device is used for a radio control model equipped with a plurality of receiving devices configured to receive operation signals from corresponding transmitting devices and a drive control device configured to perform drive control with respect to a driving target based on the operation signals. The communication control device includes an input unit for inputting signals including the operation signals from the receiving devices, and a switching processing unit for performing a process of switching an operation signal to be transmitted to the drive control device from any one of the operation signals inputted by the receiving devices to another operation signal.Type: GrantFiled: March 17, 2017Date of Patent: July 17, 2018Assignee: FUTABA CORPORATIONInventors: Masahiro Saegusa, Chihiro Uemura
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Patent number: 9849397Abstract: A communication device includes a first terminal unit connected to an actuator device having a sensor. Transmission of a steering signal transmitted from a steering wireless device to the actuator device, and transmission of detected signal detected by the sensor in the actuator device are conducted via the first terminal unit. The communication device further includes a control unit. The control unit conducts processing to generate a connection error signal representing that the actuator device are not connected on the basis of a result of determination whether the detected signal is acquired from the actuator device via the first terminal unit, and transmit the connection error signal to the steering wireless device side.Type: GrantFiled: August 31, 2015Date of Patent: December 26, 2017Assignee: FUTABA CORORATIONInventors: Masahiro Saegusa, Hiroyuki Tsuchiya, Masahiro Tanaka, Kota Toyotomi
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Patent number: 9831480Abstract: A fiber-containing polymer film contains a host polymer and fibrous substances. The fiber-containing polymer film has an orientation area where the fibrous substances are oriented in a direction substantially parallel to a main surface of the fiber-containing polymer film and in substantially the same direction.Type: GrantFiled: November 16, 2009Date of Patent: November 28, 2017Assignee: TDK CORPORATIONInventors: Katsuo Naoi, Kazutoshi Emoto, Kiyonori Hinoki, Masahiro Saegusa, Kenji Nishizawa, Mitsuo Kougo
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Publication number: 20170301227Abstract: A communication control device is used for a radio control model equipped with a plurality of receiving devices configured to receive operation signals from corresponding transmitting devices and a drive control device configured to perform drive control with respect to a driving target based on the operation signals. The communication control device includes an input unit for inputting signals including the operation signals from the receiving devices, and a switching processing unit for performing a process of switching an operation signal to be transmitted to the drive control device from any one of the operation signals inputted by the receiving devices to another operation signal.Type: ApplicationFiled: March 17, 2017Publication date: October 19, 2017Inventors: Masahiro SAEGUSA, Chihiro UEMURA
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Publication number: 20160285103Abstract: A positive electrode active material for lithium ion secondary battery, includes: a lithium nickel complex oxide represented by composition formula (1); a phosphate compound; and a coating layer formed on at least a part of a surface of a particle of the lithium nickel complex oxide, and including a high thermal conductive material with heat conductivity of 500 W/m·K or more. The coating layer of the particle of the lithium nickel complex oxide includes a portion connected to the coating layer of another particle of the lithium nickel complex oxide: LixNi1-yMyO2??(1) where M includes at least one metal selected from the group consisting of Co, Fe, Ti, Cr, Mg, Al, Cu, Ga, Mn, Zn, Sn, B, V, Ca, and Sr, and x and y are such that 0.05?x?1.2 and 0?y?0.5.Type: ApplicationFiled: March 22, 2016Publication date: September 29, 2016Applicant: TDK CORPORATIONInventors: Junpei SHITABA, Hideaki SEKI, Akinobu NOJIMA, Shin FUJITA, Masahiro SAEGUSA
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Publication number: 20160093858Abstract: A separator according to the embodiment includes a porous base material having a thermoplastic resin. The porous base material has a heat-resistant porous layer on at least one surface thereof. The heat-resistant porous layer contains inorganic particles, a resin, and sulfur. A lithium ion secondary battery according to the embodiment, includes: the separator interposed between a positive electrode and a negative electrode; and an electrolyte solution. The heat-resistant porous layer is disposed between the positive electrode and the porous base material. Sulfur is distributed unevenly in the heat-resistant porous layer so as to exist in larger amount near a surface thereof opposite to the porous base material.Type: ApplicationFiled: September 29, 2015Publication date: March 31, 2016Inventors: Masahiro SAEGUSA, Hirokazu OHNUMA, Bungo SAKURAI
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Publication number: 20160062355Abstract: A communication device includes a first terminal unit connected to an actuator device having a sensor. Transmission of a steering signal transmitted from a steering wireless device to the actuator device, and transmission of detected signal detected by the sensor in the actuator device are conducted via the first terminal unit. The communication device further includes a control unit. The control unit conducts processing to generate a connection error signal representing that the actuator device are not connected on the basis of a result of determination whether the detected signal is acquired from the actuator device via the first terminal unit, and transmit the connection error signal to the steering wireless device side.Type: ApplicationFiled: August 31, 2015Publication date: March 3, 2016Inventors: Masahiro Saegusa, Hiroyuki Tsuchiya, Masahiro Tanaka, Kota Toyotomi
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Patent number: 9214661Abstract: An electrode manufacturing method which can lower the impedance of electrochemical devices is provided. The electrode manufacturing method comprises the steps of applying a coating material containing an active material particle, a binder, and a good solvent for the binder to a current collector, so as to form a coating film made of the coating material; removing the good solvent from the coating film; applying a poor solvent for the binder to the coating film having removed the good solvent; and pressing the coating film coated with the poor solvent.Type: GrantFiled: August 26, 2009Date of Patent: December 15, 2015Assignee: TDK CORPORATIONInventors: Katsuo Naoi, Kazutoshi Emoto, Kiyonori Hinoki, Masahiro Saegusa, Kenji Nishizawa, Mitsuo Kougo
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Patent number: 9199181Abstract: There is provided a controlling communication system which includes a control device for transmitting a control signal, an object-side communication device mounted on a controlled object for receiving the control signal, and a drive control device for controlling the controlled object, and which can set a failsafe function of the object-side communication device using the control device, wherein a voltage reference value and a detection time reference value set by the control device are transmitted to the object-side communication device and are stored in a memory unit of the object-side communication device, and wherein the object-side communication device judges if the battery state meets a requirement for activating a failsafe function by referring to the voltage reference value and the detection time reference value stored in the memory unit.Type: GrantFiled: November 5, 2012Date of Patent: December 1, 2015Assignee: FUTABA CORPORATIONInventors: Yasutaka Koike, Masahiro Saegusa, Masahiro Tanaka
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Steering communication device, steered-object communication device and steering communication system
Patent number: 9180903Abstract: The present invention provides a steering communication system being able to individually obtain a telemetry data from a steered-object communication devices mounted on the steered-object. An arbitrary identification number assigned to a plurality of steered-object communication devices mounted on a steered-object at the time of pairing-setup is associated with the equipment ID of a pairing object. When performing transmission request of a telemetry data, a steering signal adding the transmission request information and the own identification number is transmitted. The steered-object communication device judges signal classification of the inputted control signal. When the steering signal adding transmission request information and the own identification number is inputted, the steered-object communication device transmits a telemetry data signal adding the telemetry data as an answer signal to a steering communication device.Type: GrantFiled: November 5, 2012Date of Patent: November 10, 2015Assignee: Futaba CorporationInventors: Yasutaka Koike, Masahiro Saegusa, Masahiro Tanaka -
Patent number: 8722253Abstract: A lithium ion secondary battery containing a pair of electrodes facing each other, and a separator interposed between the electrodes, wherein at least one of the electrodes has a protecting layer, an active-material containing layer, and a collector sequentially from the separator. The protecting layer contains a silicone resin particle having at least one structural unit represented by RSiO1.5 and R2SiO, where R represents an alkyl group having 1 to 6 carbon atoms or a phenyl group.Type: GrantFiled: August 30, 2013Date of Patent: May 13, 2014Assignee: TDK CorporationInventors: Kiyonori Hinoki, Kazutoshi Emoto, Haruka Nishimura, Masahiro Saegusa