Patents by Inventor Teppei Oguni

Teppei Oguni 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).

  • Publication number: 20220292880
    Abstract: An information processing system is provided. The information processing system includes first and second information processors. The first information processor obtains a first moving image including a face and detecting an eye from two or more first images among the first moving image. The first information processor detects a pupil from the eye detected from the first image, calculating its size, and performing learning using a change over time in the size of the pupil. The second information processor obtains a second moving image including a face and detecting an eye from two or more second images among the second moving image. The second information processor detects a pupil from the eye detected from the second image, calculating its size, and performing inference on the change over time in the size of the pupil on the basis of the result of the learning performed by the first information processor.
    Type: Application
    Filed: August 25, 2020
    Publication date: September 15, 2022
    Inventors: Teppei OGUNI, Tatsuya OKANO, Kengo AKIMOTO
  • Patent number: 11437622
    Abstract: To provide a manufacturing method of graphene oxide that allows mass production through a relatively simple process, at low costs, and with safety and efficiency. A hydrogen peroxide solution, sulfuric acid, and flake graphite are put in a reaction container, and the mixture is stirred to obtain expansion graphite. The synthesized expansion graphite is washed not with pure water but with a saturated aqueous solution of magnesium sulfate (MgSO4) or an organic solvent, whereby a large amount of sulfuric acid is contained between graphite layers. The expansion graphite is subjected to heat treatment or microwave irradiation to form expanded graphite, and a graphite layer is peeled by ultrasonic treatment and then oxidized to form a graphene compound.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: September 6, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Yumiko Yoneda, Teppei Oguni, Takuya Miwa, Masaki Yamakaji, Ayae Tsuruta
  • Publication number: 20220277591
    Abstract: Person's conditions are classified according to his/her eye data. Person's conditions are classified according to his/her eye data using an imaging device, a feature extraction unit, and a classifier. The imaging device has a function of generating a group of images by continuous image capturing, and the group of images preferably includes an image of an eye area. The eye includes a black area and a white area. The method includes the steps in which the feature extraction unit extracts the eye area from the group of images, extracts a blinking amplitude, detects an image for determining start of eye blinking, stores an image for determining end of eye blinking as first data, and stores an image after a predetermined time elapsed from the first data as second data. The step in which the feature extraction unit extracts the white area from the first data and the second data is included. The classifier can use the white area as learning data.
    Type: Application
    Filed: September 1, 2020
    Publication date: September 1, 2022
    Inventors: Teppei OGUNI, Takahiro FUKUTOME
  • Publication number: 20220229488
    Abstract: Provided are a data processing device and a data processing method that allow selecting and performing of an appropriate operation according to user's emotions. A user's face is detected and features of the user's face are extracted from data on the detected face. The user's emotions are estimated from the extracted facial features, and data based on the estimated user's emotions is generated. Whether the generated data is transmitted to an external device is determined on the basis of positional data of the user and the external device including a data reception unit, which is included in a radio wave transmitted from the Global Positioning System. When it is determined that the generated data is transmitted, it is transmitted to the external device. The external device that has received the data selects and executes operation based on the received data.
    Type: Application
    Filed: June 2, 2020
    Publication date: July 21, 2022
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kengo AKIMOTO, Teppei OGUNI, Tatsuya OKANO
  • Publication number: 20220223866
    Abstract: Graphene is formed with a practically uniform thickness on an uneven object. The object is immersed in a graphene oxide solution, and then taken out of the solution and dried; alternatively, the object and an electrode are immersed therein and voltage is applied between the electrode and the object used as an anode. Graphene oxide is negatively charged, and thus is drawn to and deposited on a surface of the object, with a practically uniform thickness. After that, the object is heated in vacuum or a reducing atmosphere, so that the graphene oxide is reduced to be graphene. In this manner, a graphene layer with a practically uniform thickness can be formed even on a surface of the uneven object.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Inventors: Teppei OGUNI, Takeshi OSADA, Toshihiko TAKEUCHI, Kuniharu NOMOTO
  • Publication number: 20220181697
    Abstract: To provide a power storage device whose charge and discharge characteristics are unlikely to be degraded by heat treatment. To provide a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolytic solution, and an exterior body. The separator is located between the positive electrode and the negative electrode. The separator contains polyphenylene sulfide or solvent-spun regenerated cellulosic fiber. The electrolytic solution contains a solute and two or more kinds of solvents. The solute contains LiBETA. One of the solvents is propylene carbonate.
    Type: Application
    Filed: February 22, 2022
    Publication date: June 9, 2022
    Inventors: Kazuhei NARITA, Ryota TAJIMA, Teppei OGUNI, I
  • Patent number: 11355784
    Abstract: In initial charge and discharge, decomposition products or a gas is generated, degrading a battery. At least one of solvents (e.g., ethylene carbonate) used for an electrolytic solution is brought into contact with a positive electrode and a negative electrode and then charge is performed to some degree, and after that, a different solvent or electrolytic solution (e.g., ethyl methyl carbonate or vinylene carbonate) was added to adjust the electrolytic solution and then charge is performed. Through this process, stable coating films are formed in initial charge and discharge, which stably inhibits a side reaction between the electrolytic solution and an active material.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: June 7, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Teppei Oguni, Junya Goto, Ai Nakagawa
  • Publication number: 20220127746
    Abstract: To form graphene to a practically even thickness on an object having an uneven surface or a complex surface, in particular, an object having a surface with a three-dimensional structure due to complex unevenness, or an object having a curved surface. The object and an electrode are immersed in a graphene oxide solution, and voltage is applied between the object and the electrode. At this time, the object serves as an anode. Graphene oxide is attracted to the anode because of being negatively charged, and deposited on the surface of the object to have a practically even thickness. A portion where graphene oxide is deposited is unlikely coated with another graphene oxide. Thus, deposited graphene oxide is reduced to graphene, whereby graphene can be formed to have a practically even thickness on an object having surface with complex unevenness.
    Type: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Inventors: Teppei OGUNI, Takeshi OSADA, Toshihiko TAKEUCHI
  • Patent number: 11296322
    Abstract: Graphene is formed with a practically uniform thickness on an uneven object. The object is immersed in a graphene oxide solution, and then taken out of the solution and dried; alternatively, the object and an electrode are immersed therein and voltage is applied between the electrode and the object used as an anode. Graphene oxide is negatively charged, and thus is drawn to and deposited on a surface of the object, with a practically uniform thickness. After that, the object is heated in vacuum or a reducing atmosphere, so that the graphene oxide is reduced to be graphene. In this manner, a graphene layer with a practically uniform thickness can be formed even on a surface of the uneven object.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: April 5, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Teppei Oguni, Takeshi Osada, Toshihiko Takeuchi, Kuniharu Nomoto
  • Publication number: 20220100943
    Abstract: A parameter candidate for a semiconductor element is provided. A data set of measurement data is provided to a parameter extraction portion, and a model parameter is extracted. A first netlist is provided to a circuit simulator, simulation is performed using the first netlist and the model parameter, and a first output result is output. A classification model learns the model parameter and the first output result and classifies the model parameter. A second netlist and a model parameter are provided to the circuit simulator. A variable to be adjusted is supplied to a neural network, an action value function is output, and the variable is updated. The circuit simulator performs simulation using the second netlist and the model parameter. When a second output result to be output does not satisfy conditions, a weight coefficient of the neural network is updated. When the second output result satisfies the conditions, the variable is judged to be the best candidate.
    Type: Application
    Filed: February 4, 2020
    Publication date: March 31, 2022
    Inventors: Teppei OGUNI, Takeshi OSADA, Takahiro FUKUTOME
  • Patent number: 11264648
    Abstract: To provide a power storage device whose charge and discharge characteristics are unlikely to be degraded by heat treatment. To provide a power storage device that is highly safe against heat treatment. The power storage device includes a positive electrode, a negative electrode, a separator, an electrolytic solution, and an exterior body. The separator is located between the positive electrode and the negative electrode. The separator contains polyphenylene sulfide or solvent-spun regenerated cellulosic fiber. The electrolytic solution contains a solute and two or more kinds of solvents. The solute contains LiBETA. One of the solvents is propylene carbonate.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: March 1, 2022
    Assignee: SEMICONDUCTOR LABORATORY ENERGY CO., LTD.
    Inventors: Kazuhei Narita, Ryota Tajima, Teppei Oguni
  • Patent number: 11248307
    Abstract: To form graphene to a practically even thickness on an object having an uneven surface or a complex surface, in particular, an object having a surface with a three-dimensional structure due to complex unevenness, or an object having a curved surface. The object and an electrode are immersed in a graphene oxide solution, and voltage is applied between the object and the electrode. At this time, the object serves as an anode. Graphene oxide is attracted to the anode because of being negatively charged, and deposited on the surface of the object to have a practically even thickness. A portion where graphene oxide is deposited is unlikely coated with another graphene oxide. Thus, deposited graphene oxide is reduced to graphene, whereby graphene can be formed to have a practically even thickness on an object having surface with complex unevenness.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: February 15, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Teppei Oguni, Takeshi Osada, Toshihiko Takeuchi
  • Publication number: 20220037666
    Abstract: A power storage device with high capacity or high energy density is provided. A highly reliable power storage device is provided. A long-life power storage device is provided. An electrode includes an active material, a first binder, and a second binder. The specific surface area of the active material is S [m2/g]. The weight of the active material, the weight of the first binder, and the weight of the second binder are a, b, and c, respectively. The solution of {(b+c)/(a+b+c)}×100÷S is 0.3 or more. The electrode includes a first film in contact with the active material. The first film preferably includes a region in contact with the active material. The first film preferably includes a region with a thickness of 2 nm or more and 20 nm or less. The first film contains a water-soluble polymer.
    Type: Application
    Filed: October 14, 2021
    Publication date: February 3, 2022
    Inventors: Kai Kimura, Kazutaka Kuriki, Teppei Oguni, Aya Uchida
  • Patent number: 11152622
    Abstract: A power storage device with high capacity or high energy density is provided. A highly reliable power storage device is provided. A long-life power storage device is provided. An electrode includes an active material, a first binder, and a second binder. The specific surface area of the active material is S [m2/g]. The weight of the active material, the weight of the first binder, and the weight of the second binder are a, b, and c, respectively. The solution of {(b+c)/(a+b+c)}×100÷S is 0.3 or more. The electrode includes a first film in contact with the active material. The first film preferably includes a region in contact with the active material. The first film preferably includes a region with a thickness of 2 nm or more and 20 nm or less. The first film contains a water-soluble polymer.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: October 19, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kai Kimura, Kazutaka Kuriki, Teppei Oguni, Aya Uchida
  • Publication number: 20210296701
    Abstract: A material that can be used in a wide temperature range is provided. A graphene compound includes graphene or graphene oxide and a substituted or unsubstituted chain group, the chain group includes two or more ether bonds, and the chain group is bonded to the above graphene or graphene oxide through a Si atom. Alternatively, a method for forming a graphene compound includes a first step and a second step after the first step. In the first step, graphene oxide and a base are stirred under a nitrogen stream. In the second step, the mixture is cooled to room temperature, a silylating agent that has a group having two or more ether bonds is introduced into the mixture, and the obtained mixture is stirred. The base is butylamine, pentylamine, hexylamine, diethylamine, dipropylamine, dibutylamine, triethylamine, tripropylamine, or pyridine.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 23, 2021
    Inventors: Hiroshi KADOMA, Teppei OGUNI, Satoshi SEO
  • Publication number: 20210273216
    Abstract: A lithium-ion secondary battery including a lithium-containing complex phosphate as a positive electrode active material is provided. Furthermore, a positive electrode active material with high diffusion rate of lithium ions is provided to provide a lithium-ion secondary battery with high output. A positive electrode active material of a lithium-ion secondary battery includes a first plate-like component and a second plate-like component, a third prismatic component between the first component and the second component, and a space between the first component and the second component.
    Type: Application
    Filed: May 11, 2021
    Publication date: September 2, 2021
    Inventors: Teppei OGUNI, Takuya MIWA
  • Patent number: 11088363
    Abstract: A lithium-ion secondary battery including a lithium-containing complex phosphate as a positive electrode active material is provided. Furthermore, a positive electrode active material with high diffusion rate of lithium ions is provided to provide a lithium-ion secondary battery with high output. A positive electrode active material of a lithium-ion secondary battery includes a first plate-like component and a second plate-like component, a third prismatic component between the first component and the second component, and a space between the first component and the second component.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: August 10, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Teppei Oguni, Takuya Miwa
  • Publication number: 20210226216
    Abstract: A composite oxide with high diffusion rate of lithium is provided. Alternatively, a lithium-containing complex phosphate with high diffusion rate of lithium is provided. Alternatively, a positive electrode active material with high diffusion rate of lithium is provided. Alternatively, a lithium ion battery with high output is provided. Alternatively, a lithium ion battery that can be manufactured at low cost is provided. A positive electrode active material is formed through a first step of mixing a lithium compound, a phosphorus compound, and water, a second step of adjusting pH by adding a first aqueous solution to a first mixed solution formed in the first step, a third step of mixing an iron compound with a second mixed solution formed in the second step, a fourth step of performing heat treatment under a pressure more than or equal to 0.1 MPa and less than or equal to 2 MPa at a highest temperature more than 100° C. and less than or equal to 119° C.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 22, 2021
    Inventors: Takuya MIWA, Yumiko YONEDA, Teppei OGUNI
  • Publication number: 20210202945
    Abstract: To provide a manufacturing method of graphene oxide that allows mass production through a relatively simple process, at low costs, and with safety and efficiency. A hydrogen peroxide solution, sulfuric acid, and flake graphite are put in a reaction container, and the mixture is stirred to obtain expansion graphite. The synthesized expansion graphite is washed not with pure water but with a saturated aqueous solution of magnesium sulfate (MgSO4) or an organic solvent, whereby a large amount of sulfuric acid is contained between graphite layers. The expansion graphite is subjected to heat treatment or microwave irradiation to form expanded graphite, and a graphite layer is peeled by ultrasonic treatment and then oxidized to form a graphene compound.
    Type: Application
    Filed: February 24, 2021
    Publication date: July 1, 2021
    Inventors: Yumiko Yoneda, Teppei Oguni, Takuya Miwa, Masaki Yamakaji, Ayae Tsuruta
  • Patent number: 11024878
    Abstract: A material that can be used in a wide temperature range is provided. A graphene compound includes graphene or graphene oxide and a substituted or unsubstituted chain group, the chain group includes two or more ether bonds, and the chain group is bonded to the above graphene or graphene oxide through a Si atom. Alternatively, a method for forming a graphene compound includes a first step and a second step after the first step. In the first step, graphene oxide and a base are stirred under a nitrogen stream. In the second step, the mixture is cooled to room temperature, a silylating agent that has a group having two or more ether bonds is introduced into the mixture, and the obtained mixture is stirred. The base is butylamine, pentylamine, hexylamine, diethylamine, dipropylamine, dibutylamine, triethylamine, tripropylamine, or pyridine.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: June 1, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroshi Kadoma, Teppei Oguni, Satoshi Seo