Patents by Inventor Junichi Kawamura
Junichi Kawamura 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: 20240071139Abstract: To provide an information processing method for performing a process for determining a learning level of a user or presenting the determined learning level. An information processing method includes an input step of inputting time-series media information representing a movement or conduct of a learning user, a first determination step of determining a learning level of the user on the basis of the time-series media information, and an output step of outputting a portion in the time-series media information at which the movement or action by the user is different from a reference movement or action, on the basis of the learning level of the user determined in the first determination step.Type: ApplicationFiled: November 16, 2021Publication date: February 29, 2024Inventors: KAZUKI KAWAMURA, JUNICHI REKIMOTO, KOJIRO KASHIWA
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Patent number: 11489200Abstract: A main object of the present disclosure is to provide a liquid electrolyte in which concentration of active fluoride ion is high. The present disclosure achieves the object by providing a liquid electrolyte to be used in a fluoride ion battery, the liquid electrolyte comprising: a potassium fluoride; an alkali metal amide salt including a cation of an alkali metal and an amide anion; and a glyme represented by a general formula R1—O(CH2CH2O)n—R2, in which R1 and R2 is each independently an alkyl group including 4 or less carbon atoms or a fluoroalkyl group including 4 or less carbon atoms, and n is within a range of 2 to 10.Type: GrantFiled: March 19, 2020Date of Patent: November 1, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOHOKU UNIVERSITYInventors: Hirofumi Nakamoto, Reiji Takekawa, Junichi Kawamura
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Publication number: 20200321654Abstract: A main object of the present disclosure is to provide a liquid electrolyte in which concentration of active fluoride ion is high. The present disclosure achieves the object by providing a liquid electrolyte to be used in a fluoride ion battery, the liquid electrolyte comprising: a potassium fluoride; an alkali metal amide salt including a cation of an alkali metal and an amide anion; and a glyme represented by a general formula R1—O(CH2CH2O)n—R2, in which R1 and R2 is each independently an alkyl group including 4 or less carbon atoms or a fluoroalkyl group including 4 or less carbon atoms, and n is within a range of 2 to 10.Type: ApplicationFiled: March 19, 2020Publication date: October 8, 2020Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOHOKU UNIVERSITYInventors: Hirofumi NAKAMOTO, Reiji TAKEKAWA, Junichi KAWAMURA
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Publication number: 20200153043Abstract: A main object of the present disclosure is to provide a liquid electrolyte in which concentration of active fluoride ion is high even when a cesium fluoride (CsF) is included therein. The present disclosure achieves the object by providing a liquid electrolyte to be used in a fluoride ion battery, the liquid electrolyte comprising: a cesium fluoride and a solvent; and an amount of moisture is 50 ppm or more and 1100 ppm or less.Type: ApplicationFiled: October 10, 2019Publication date: May 14, 2020Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOHOKU UNIVERSITYInventors: Hirofumi NAKAMOTO, Reiji TAKEKAWA, Junichi KAWAMURA
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Patent number: 9001922Abstract: A power transmitter 50 is usable in a wireless power transmission system for transmitting power wirelessly. The power transmitter 50 includes a power transmitting section 51 for transmitting power; a communication section 52 for communicating information, for controlling the transmission of the power, with the power receiver 60; and a control section 53 for controlling the power transmitting section 51 such that the power to be sent out by the power transmitting section 51 is higher while the communication section 52 is performing the communication.Type: GrantFiled: September 8, 2011Date of Patent: April 7, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shutai Okamura, Keisuke Kinoshita, Junichi Kawamura
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Patent number: 8929563Abstract: The transmitter of a wireless power transmission audio system includes: a transmission signal generating section for generating a transmission signal comprised of an RF signal; a first resonant circuit which receives and sends out the transmission signal; a detecting section for sensing a variation in the transmission signal; and a transmission signal adjusting section. The loudspeaker of the system includes: a second resonant circuit for receiving the transmission signal by producing a magnetic field resonant coupling phenomenon; and an audio output section for reproducing the audio signal. At least one of the transmitter and the loudspeaker includes an impedance adjusting section which changes an impedance value on the transmission line of the transmission signal. When the impedance adjusting section changes the impedance value, the transmission signal adjusting section changes the signal waveform of the transmission signal.Type: GrantFiled: December 19, 2011Date of Patent: January 6, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Keisuke Kinoshita, Junichi Kawamura, Shutai Okamura
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Patent number: 8872385Abstract: A wireless power transmission system transmits power wirelessly from a power transmitter to a power receiver. The power transmitter includes a class E amplifier, a transmitting-end resonant circuit, a detector that detects a voltage or current waveform at a predetermined position in the class E amplifier in accordance with the impedance of the transmitting-end resonant circuit as viewed from the class E amplifier, and a signal extractor that extracts a signal according to the waveform. The power receiver includes a receiving-end resonant circuit, a rectifier circuit, a power reproducing section, and an impedance changer connected between the rectifier circuit and the power reproducing section to change its impedance. When the impedance is changed, the detector detects the waveform variation and the signal extractor extracts and outputs a signal corresponding to the waveform detected by the detector.Type: GrantFiled: December 19, 2011Date of Patent: October 28, 2014Assignee: Panasonic CorporationInventors: Keisuke Kinoshita, Junichi Kawamura, Shutai Okamura
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Publication number: 20120161538Abstract: A wireless power transmission system transmits power wirelessly from a power transmitter to a power receiver. The power transmitter includes a class E amplifier, a transmitting-end resonant circuit, a detector that detects a voltage or current waveform at a predetermined position in the class E amplifier in accordance with the impedance of the transmitting-end resonant circuit as viewed from the class E amplifier, and a signal extractor that extracts a signal according to the waveform. The power receiver includes a receiving-end resonant circuit, a rectifier circuit, a power reproducing section, and an impedance changer connected between the rectifier circuit and the power reproducing section to change its impedance. When the impedance is changed, the detector detects the waveform variation and the signal extractor extracts and outputs a signal corresponding to the waveform detected by the detector.Type: ApplicationFiled: December 19, 2011Publication date: June 28, 2012Applicant: PANASONIC CORPORATIONInventors: Keisuke KINOSHITA, Junichi KAWAMURA, Shutai OKAMURA
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Publication number: 20120163619Abstract: The transmitter of a wireless power transmission audio system includes: a transmission signal generating section for generating a transmission signal comprised of an RF signal; a first resonant circuit which receives and sends out the transmission signal; a detecting section for sensing a variation in the transmission signal; and a transmission signal adjusting section. The loudspeaker of the system includes: a second resonant circuit for receiving the transmission signal by producing a magnetic field resonant coupling phenomenon; and an audio output section for reproducing the audio signal. At least one of the transmitter and the loudspeaker includes an impedance adjusting section which changes an impedance value on the transmission line of the transmission signal. When the impedance adjusting section changes the impedance value, the transmission signal adjusting section changes the signal waveform of the transmission signal.Type: ApplicationFiled: December 19, 2011Publication date: June 28, 2012Applicant: PANASONIC CORPORATIONInventors: Keisuke KINOSHITA, Junichi KAWAMURA, Shutai OKAMURA
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Publication number: 20120063505Abstract: A power transmitter 50 is usable in a wireless power transmission system for transmitting power wirelessly. The power transmitter 50 includes a power transmitting section 51 for transmitting power; a communication section 52 for communicating information, for controlling the transmission of the power, with the power receiver 60; and a control section 53 for controlling the power transmitting section 51 such that the power to be sent out by the power transmitting section 51 is higher while the communication section 52 is performing the communication.Type: ApplicationFiled: September 8, 2011Publication date: March 15, 2012Applicant: PANASONIC CORPORATIONInventors: Shutai OKAMURA, Keisuke KINOSHITA, Junichi KAWAMURA
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Patent number: 5208399Abstract: A method for producing allyl chloride by oxychlorination of propylene, which comprises reacting propylene, hydrogen chloride and oxygen in the presence of a catalyst comprising an alloy of tellurium supported on a carrier.Type: GrantFiled: September 10, 1991Date of Patent: May 4, 1993Assignee: Tosoh CorporationInventors: Takanori Miyake, Kazunari Hirakawa, Makoto Hanaya, Junichi Kawamura
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Patent number: 5032836Abstract: A guide device for visually handicapped person which has a portable unit and a position indicator unit. The portable unit is carried by the visually handicapped person and includes a radio frequency signal oscillator. The position indicator unit is disposed to a desired place and includes a radio frequency signal receiver and a loud speaker.Type: GrantFiled: June 18, 1990Date of Patent: July 16, 1991Assignee: Namco, Ltd.Inventors: Yujiro Ono, Syuichi Nakatome, Yoshihide Kumada, Kenji Suzuki, Junichi Kawamura, Katunori Ota, Satoru Tomiyama