Patents by Inventor Minoru Takahashi

Minoru Takahashi 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).

  • Patent number: 11108105
    Abstract: In the case where a film having lower strength than a metal can is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery resistant to external force is provided. A cushioning material is provided in a region sandwiched by an exterior body of the secondary battery. Specifically, the cushioning material is provided on the periphery of an electrode group including a positive electrode current collector, a positive electrode active material layer formed on at least one surface of the positive electrode current collector, a separator, a negative electrode current collector, and a negative electrode active material layer formed on at least one surface of the negative electrode current collector.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: August 31, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Daisuke Suzawa, Nozomi Uto
  • Publication number: 20210265653
    Abstract: The adhesion between metal foil serving as a current collector and a negative electrode active material is increased to enable long-term reliability. An electrode active material layer (including a negative electrode active material or a positive electrode active material) is formed over a base, a metal film is formed over the electrode active material layer by sputtering, and then the base and the electrode active material layer are separated at the interface therebetween; thus, an electrode is formed. The electrode active material particles in contact with the metal film are bonded by being covered with the metal film formed by the sputtering. The electrode active material is used for at least one of a pair of electrodes (a negative electrode or a positive electrode) in a lithium-ion secondary battery.
    Type: Application
    Filed: May 10, 2021
    Publication date: August 26, 2021
    Inventors: Shunpei YAMAZAKI, Minoru TAKAHASHI
  • Patent number: 11101492
    Abstract: In the case where a film, which has lower strength than a metal can, is used as an exterior body of a secondary battery, a current collector provided in a region surrounded by the exterior body, an active material layer provided on a surface of the current collector, or the like might be damaged when force is externally applied to the secondary battery. A secondary battery that is durable even when force is externally applied thereto is provided. A cushioning material is provided in a region surrounded by an exterior body of a secondary battery. Specifically, a cushioning material is provided on the periphery of a current collector such that a sealing portion of an exterior body (film) is located outside the cushioning material.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: August 24, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Ryota Tajima, Takuya Miwa, Yuugo Goto
  • Patent number: 11075533
    Abstract: A lithium ion secondary battery includes a positive electrode including a positive electrode active material layer containing lithium iron phosphate, a negative electrode including a negative electrode active material layer containing graphite, and an electrolyte including a lithium salt and a solvent including ethylene carbonate and diethyl carbonate between the positive electrode and the negative electrode. When the battery temperature of the lithium ion secondary battery or the temperature of an environment in which the lithium ion secondary battery is used is T and given temperatures are T1 and T2 (T1<T2), in the case where T<T1, constant current charge is performed until voltage reaches a given value and then constant voltage charge is performed; in the case where T1?T<T2, only constant current charge is performed; and in the case where T2?T, charge is not performed.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: July 27, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Junpei Momo, Hiroyuki Miyake, Kei Takahashi
  • Publication number: 20210226456
    Abstract: Deterioration of a power storage device is reduced. Switches that control the connections of a plurality of power storage devices separately are provided. The switches are controlled with a plurality of control signals, so as to switch between charge and discharge of each of the power storage devices or between serial connection and parallel connection of the plurality of power storage devices. Further, a semiconductor circuit having a function of carrying out arithmetic is provided for the power storage devices, so that a control system of the power storage devices or a power storage system is constructed.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 22, 2021
    Inventors: Minoru TAKAHASHI, Junpei MOMO, Yutaka SHIONOIRI
  • Patent number: 11067967
    Abstract: In the embodiments of the disclosure, a target signal which is a signal of a part used for subsequent processing is acquired from signals output from a device with higher accuracy. A control apparatus includes a first acquisition part which acquires a first signal of a time series output from a first device, a recording part which records a part of the first signal acquired by the first acquisition part, and a determination part which determines a timing at which the recording part records the first signal based on a preset predetermined condition.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: July 20, 2021
    Assignee: OMRON Corporation
    Inventors: Hitoshi Oba, Minoru Takahashi
  • Patent number: 11036570
    Abstract: A device management apparatus includes a storage device configured to store a number of fed sheets in an early failure period, the number of fed sheets in the early failure period being a certain number of fed sheets and being a preset number of fed sheets, which is treated as an early failure where the maintainable component has a failure, and calculates a failure density depending on a number of fed sheets based on a number of fed sheets at a time when a failure occurred in the component, which is received from the multiple image forming apparatuses, and outputs information about replacement of the maintainable component based on the failure density to the number of fed sheets in the early failure period from a number of fed sheets at a time when the parameter exceeds the threshold after an operation, which is received from one image forming apparatus.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: June 15, 2021
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Minoru Takahashi
  • Patent number: 11029898
    Abstract: Load on a system is reduced. In an embodiment, a status information managing unit acquires data indicating the status of each functional unit to be transmitted to an apparatus management server, and a system control unit instructs data acquisition timing for acquiring the data to the status information managing unit. Moreover, the status information managing unit acquires data that changes over time according to the usage status, and acquires and caches, in advance, data that does not change over time according to the usage status. Furthermore, after receiving a transmission request from the apparatus management server, the system control unit transmits status information including cached data and acquired data. Thus, at the time of data transmission, only data that changes over time need be acquired, so the number of data to be acquired may be reduced.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: June 8, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Minoru Takahashi
  • Publication number: 20210143500
    Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.
    Type: Application
    Filed: January 21, 2021
    Publication date: May 13, 2021
    Inventors: Minoru TAKAHASHI, Shunpei YAMAZAKI, Masaaki HIROKI, Kei TAKAHASHI, Junpei MOMO
  • Patent number: 11005123
    Abstract: The adhesion between metal foil serving as a current collector and a negative electrode active material is increased to enable long-term reliability. An electrode active material layer (including a negative electrode active material or a positive electrode active material) is formed over a base, a metal film is formed over the electrode active material layer by sputtering, and then the base and the electrode active material layer are separated at the interface therebetween; thus, an electrode is formed. The electrode active material particles in contact with the metal film are bonded by being covered with the metal film formed by the sputtering. The electrode active material is used for at least one of a pair of electrodes (a negative electrode or a positive electrode) in a lithium-ion secondary battery.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: May 11, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Minoru Takahashi
  • Patent number: 10998750
    Abstract: To provide a light-emitting device capable of being used in a wide temperature range. To provide a light-emitting device capable of being used in a low-temperature environment and a high-temperature environment. The light-emitting device includes a light-emitting panel, a secondary battery, a circuit, and a sealing structure. The light-emitting panel includes a light-emitting element. The light-emitting element can emit light with power supplied from the secondary battery. The circuit includes an antenna and can charge the secondary battery wirelessly. The light-emitting panel, the secondary battery, and the circuit are provided in the sealing structure. The sealing structure includes a portion through which light emitted from the light-emitting element passes.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: May 4, 2021
    Inventors: Yusuke Yoshitani, Masaaki Hiroki, Minoru Takahashi
  • Patent number: 10978757
    Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: April 13, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Shunpei Yamazaki, Masaaki Hiroki, Kei Takahashi, Junpei Momo
  • Patent number: 10943159
    Abstract: An information processing apparatus includes a controller circuit configured to determine a feed-time-period, calculate a variation-value for each variation-calculation-span, detect that a successive-occurrence-number reaches a successive-occurrence-reference-number, determine a number-of-fed-media-at-wear-detected-time, divide the number-of-fed-media-at-wear-detected-time by a number-of-total-operation-days to calculate an average-number-of-fed-media-per-day, and divide an allowed-number-of-media-to-be-fed-after-wear-detection by the average-number-of-fed-media-per-day to calculate a predicted-number-of-days, the allowed-number-of-media-to-be-fed-after-wear-detection being a number of feedable media from the point at which the successive-occurrence-number reaches the successive-occurrence-reference-number to a point at which a part is replaced, the predicted-number-of-days being a number of days in which the allowed-number-of-media-to-be-fed-after-wear-detection is to be consumed starting from a day on which
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: March 9, 2021
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Minoru Takahashi
  • Patent number: 10937999
    Abstract: In the case where a secondary battery is repetitively curved, portions which tend to cause deterioration such as crack or breakage are, for example, a positive electrode tab and a negative electrode tab. This is because these portions are narrow projected portions, and tend to have low mechanical strength against repetitive curving in some cases. In view of the above, the positive electrode tab and the negative electrode tab are provided in portions relatively less affected by curving. More specifically, secondary battery includes a positive electrode, a positive electrode lead electrically connected to the positive electrode, a negative electrode, a negative electrode lead electrically connected to the negative electrode, a separator, and an exterior body wrapping the positive electrode, the negative electrode, and the separator. The positive electrode, the separator, the negative electrode, and the exterior body can be curved in a first direction.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: March 2, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Junpei Momo, Ryota Tajima
  • Publication number: 20210028482
    Abstract: A secondary battery suitable for a portable information terminal or a wearable device is provided. An electronic device having a novel structure which can have various forms and a secondary battery that fits the forms of the electronic device are provided. In the secondary battery, scaling is performed using a film provided with depressions or projections that ease stress on the film due to application of external force. A pattern of depressions or projections is formed on the film by pressing, e.g., embossing.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 28, 2021
    Inventors: Minoru TAKAHASHI, Ryota TAJIMA
  • Patent number: 10897152
    Abstract: Deterioration of a power storage device is reduced. Switches that control the connections of a plurality of power storage devices separately are provided. The switches are controlled with a plurality of control signals, so as to switch between charge and discharge of each of the power storage devices or between serial connection and parallel connection of the plurality of power storage devices. Further, a semiconductor circuit having a function of carrying out arithmetic is provided for the power storage devices, so that a control system of the power storage devices or a power storage system is constructed.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: January 19, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Junpei Momo, Yutaka Shionoiri
  • Publication number: 20200409777
    Abstract: A device management apparatus includes a storage device configured to store a number of fed sheets in an early failure period, the number of fed sheets in the early failure period being a certain number of fed sheets and being a preset number of fed sheets, which is treated as an early failure where the maintainable component has a failure, and calculates a failure density depending on a number of fed sheets based on a number of fed sheets at a time when a failure occurred in the component, which is received from the multiple image forming apparatuses, and outputs information about replacement of the maintainable component based on the failure density to the number of fed sheets in the early failure period from a number of fed sheets at a time when the parameter exceeds the threshold after an operation, which is received from one image forming apparatus.
    Type: Application
    Filed: June 23, 2020
    Publication date: December 31, 2020
    Inventor: MINORU TAKAHASHI
  • Publication number: 20200403285
    Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 24, 2020
    Inventors: Minoru TAKAHASHI, Shunpei YAMAZAKI, Masaaki HIROKI, Kei TAKAHASHI, Junpei MOMO
  • Patent number: 10833309
    Abstract: A secondary battery in which convection in an electrolyte solution occurs easily is provided. A secondary battery whose electrolyte solution can be replaced is provided. A nonaqueous secondary battery includes a positive electrode, a negative electrode, a separator, and an electrolyte solution, and the separator includes grooves capable of making convection in the electrolyte solution occur easily. The nonaqueous secondary battery has at least one expected installation direction, and the grooves in the separator are preferably formed so as to be perpendicular to an expected installation surface. The exterior body includes a first opening for injection of an inert gas into the exterior body and a second opening for expelling or injection of an electrolyte solution from or into the exterior body. An electrolyte solution replacement apparatus has a function of injecting the inert gas through the first opening and expelling or injecting the electrolyte solution through the second opening.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: November 10, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Masaaki Hiroki
  • Patent number: 10797367
    Abstract: Disclosed is a power storage unit which can safely operate over a wide temperature range. The power storage unit includes: a power storage device; a heater for heating the power storage device; a temperature sensor for sensing the temperature of the power storage device; and a control circuit configured to inhibit charge of the power storage device when its temperature is lower than a first temperature or higher than a second temperature. The first temperature is exemplified by a temperature which allows the formation of a dendrite over a negative electrode of the power storage device, whereas the second temperature is exemplified by a temperature which causes decomposition of a passivating film formed over a surface of a negative electrode active material.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 6, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Shunpei Yamazaki, Masaaki Hiroki, Kei Takahashi, Junpei Momo