Patents by Inventor Keisuke Ozaki
Keisuke Ozaki 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: 20230232190Abstract: In a communications system including a base station capable of altering a frequency bandwidth which is used for transmitting broadcast data for providing point-to-multipoint broadcasting communications service and which is used for transmitting individual communications data for providing point-to-point individual communications service, and a mobile terminal capable of altering a receivable bandwidth which is used for receiving at least the broadcast data and the individual communications data transmitted from the base station, decision processing of making a decision as to whether the mobile terminal can receive reception-desired content it desires to receive among contents provided by the broadcasting communications service is executed in accordance with a frequency occupying bandwidth used for transmitting the reception-desired content. Thus, the mobile terminal becomes able to make a decision as to whether it can receive particular E-MBMS content considering its own UE position.Type: ApplicationFiled: March 17, 2023Publication date: July 20, 2023Applicant: Mitsubishi Electric CorporationInventors: Miho MAEDA, Mitsuru MOCHIZUKI, Yasushi IWANE, Noriyuki FUKUI, Tetsuya MISHUKU, Michiaki TAKANO, Ryoichi FUJIE, Shigenori TANI, Akira OKUBO, Keisuke OZAKI
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Patent number: 9933877Abstract: Problem: To achieve a pressure sensitive sensor capable of suppressing a drop in the accuracy of detecting a pressing force even in cases where the ambient temperature changes. Resolution means: A pressure sensitive sensor (7) includes: an elastically deformable covering member (10A) covering a front surface side; a variable resistance electrode (42A), electrical resistance thereof changing in response to a change in posture; a pyroelectric material layer (50) disposed covering the variable resistance electrode (42A); and a pair of charge detection electrodes (51, 52) disposed on both sides of the pyroelectric material layer (50) in a layering direction (L).Type: GrantFiled: February 16, 2015Date of Patent: April 3, 2018Assignee: Nissha Co., Ltd.Inventors: Yuji Watazu, Naoto Imae, Keisuke Ozaki, Eiji Kakutani, Junichi Shibata
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Patent number: 9930639Abstract: Since OFDM (Orthogonal Frequency Division Multiplexing), which is a downlink access scheme used for an LTE (Long Term Evolution) communication system, is weak at interference, it is preferable that the number of base stations for transmitting the same E-MBMS (Evolved Multimedia Broadcast Multicast Service) data base not excessive. Thus, the mobile terminal performs: processing of obtaining measurement quality values by measuring reception quality of each base station; processing of deciding on whether the measurement quality value of a serving base station exceeds a certain receiving level; processing of adding measurement quality values of other base stations to the measurement quality value of the serving base station until the sum exceeds the certain receiving level; and processing of notifying the serving base station of the serving base station and other base stations as candidates for an active set for E-MBMS.Type: GrantFiled: August 24, 2016Date of Patent: March 27, 2018Assignee: TCL COMMUNICATION TECHNOLOGY HOLDINGS LIMITEDInventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Noriyuki Fukui, Tetsuya Mishuku, Michiaki Takano, Ryoichi Fujie, Shigenori Tani, Akira Okubo, Keisuke Ozaki
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Patent number: 9885620Abstract: In a pressure detecting apparatus, a pressure sensor includes a piezoelectric sheet that generates a piezoelectric signal according to a load that is applied. A touch detecting unit detects contact with the pressure sensor. An acquirer acquires a piezoelectric output based on the piezoelectric signal. A rate-of-change calculator calculates a rate of change with respect to time of the piezoelectric output acquired within an arbitrary time range before a touch detection time when the touch detecting unit detects contact with the pressure sensor. An applied pressure calculator calculates applied pressure by correcting the piezoelectric output acquired after an end time of the time range used in the calculation of the rate of change using the rate of change. The apparatus enables precise measurement of applied pressure in a pressure sensor.Type: GrantFiled: September 17, 2015Date of Patent: February 6, 2018Assignee: NISSHA PRINTING CO., LTD.Inventors: Yuji Watazu, Naoto Imae, Eiji Kakutani, Keisuke Ozaki, Shinichi Hagihara, Junichi Shibata
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Patent number: 9864450Abstract: A piezoelectric sensor in which position detection and load detection can be achieved. The piezoelectric sensor includes a piezoelectric layer interposed between the upper electrode and the lower electrode. In the piezoelectric sensor, at least one of the upper electrode and the lower electrode includes a plurality of electrodes patterns.Type: GrantFiled: May 21, 2014Date of Patent: January 9, 2018Assignee: Nissha Co., Ltd.Inventors: Yuji Watazu, Yoshiko Suetomi, Eiji Kakutani, Keisuke Ozaki, Junichi Shibata, Katsumi Tokuno, Shuzo Okumura, Ryomei Omote
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Publication number: 20170052074Abstract: In a pressure detecting apparatus, a pressure sensor includes a piezoelectric sheet that generates a piezoelectric signal according to a load that is applied. A touch detecting unit detects contact with the pressure sensor. An acquirer acquires a piezoelectric output based on the piezoelectric signal. A rate-of-change calculator calculates a rate of change with respect to time of the piezoelectric output acquired within an arbitrary time range before a touch detection time when the touch detecting unit detects contact with the pressure sensor. An applied pressure calculator calculates applied pressure by correcting the piezoelectric output acquired after an end time of the time range used in the calculation of the rate of change using the rate of change. The apparatus enables precise measurement of applied pressure in a pressure sensor.Type: ApplicationFiled: September 17, 2015Publication date: February 23, 2017Applicant: NISSHA PRINTING CO., LTD.Inventors: Yuji WATAZU, Naoto IMAE, Eiji KAKUTANI, Keisuke OZAKI, Shinichi HAG, Junichi SHIBATA
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Publication number: 20170048819Abstract: Since OFDM (Orthogonal Frequency Division Multiplexing), which is a downlink access scheme used for an LTE (Long Term Evolution) communication system, is weak at interference, it is preferable that the number of base stations for transmitting the same E-MBMS (Evolved Multimedia Broadcast Multicast Service) data base not excessive. Thus, the mobile terminal performs: processing of obtaining measurement quality values by measuring reception quality of each base station; processing of deciding on whether the measurement quality value of a serving base station exceeds a certain receiving level; processing of adding measurement quality values of other base stations to the measurement quality value of the serving base station until the sum exceeds the certain receiving level; and processing of notifying the serving base station of the serving base station and other base stations as candidates for an active set for E-MBMS.Type: ApplicationFiled: August 24, 2016Publication date: February 16, 2017Applicant: TCL COMMUNICATION TECHNOLOGY HOLDINGS LIMITEDInventors: MITSURU MOCHIZUKI, MIHO MAEDA, YASUSHI IWANE, NORIYUKI FUKUI, TETSUYA MISHUKU, MICHIAKI TAKANO, RYOICHI FUJIE, SHIGENORI TANI, AKIRA OKUBO, KEISUKE OZAKI
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Patent number: 9519378Abstract: [Object] To provide a pressure detector capable of accurately detecting a pressing force. [Solution] A pressure detector according to the present invention includes a first piezoelectric sheet 3a, a second piezoelectric sheet 3b located so as to be close to or in contact with the first piezoelectric sheet 3a, and a detection electrode 4 that sandwiches the first piezoelectric sheet 3a and the second piezoelectric sheet 3b. The first piezoelectric sheet 3a and the second piezoelectric sheet 3b are composed of materials having identical characteristics and have a thickness of 5 ?m to 50 ?m. Potential differences respectively generated between surfaces on a support substrate 1 side and surfaces opposite to the support substrate 1 of the first piezoelectric sheet 3a and the second piezoelectric sheet 3b when the first piezoelectric sheet 3a and the second piezoelectric sheet 3b are pulled in an in-plane direction have a relationship expressed by expression 1: V1/V2<0.Type: GrantFiled: March 12, 2014Date of Patent: December 13, 2016Assignee: NISSHA PRINTING CO., LTD.Inventors: Yuji Watazu, Keisuke Ozaki, Eiji Kakutani, Junichi Shibata
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Patent number: 9507456Abstract: A touch panel equipped with both a capacitive sensor and a piezoelectric sensor, wherein the touch panel solves the problems of increased panel thickness, changes in the optical properties, and increased manufacturing costs. This touch panel is provided with force measurement using a piezoelectric body and capacitive point detection. The force measurement uses a pair of electrodes arranged with the piezoelectric body sandwiched therebetween. The point detection uses one electrode and another electrode. At least one top electrode is disposed on the side of the top surface of the piezoelectric body, and at least one bottom electrode is disposed on the side of the bottom surface of the piezoelectric body. One electrode among the pair of electrodes used in force measurement is a bottom electrode, and at least one electrode among the two electrodes used in point detection is a top electrode.Type: GrantFiled: December 25, 2013Date of Patent: November 29, 2016Assignee: NISSHA PRINTING CO., LTD.Inventors: Yuji Watazu, Junichi Shibata, Shuzo Okumura, Keisuke Ozaki, Takao Hashimoto
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Publication number: 20160342257Abstract: Problem: To achieve a pressure sensitive sensor capable of suppressing a drop in the accuracy of detecting a pressing force even in cases where the ambient temperature changes. Resolution means: A pressure sensitive sensor (7) includes: an elastically deformable covering member (10A) covering a front surface side; a variable resistance electrode (42A), electrical resistance thereof changing in response to a change in posture; a pyroelectric material layer (50) disposed covering the variable resistance electrode (42A); and a pair of charge detection electrodes (51, 52) disposed on both sides of the pyroelectric material layer (50) in a layering direction (L).Type: ApplicationFiled: February 16, 2015Publication date: November 24, 2016Applicant: NISSHA PRINTING CO., LTD.Inventors: Yuji WATAZU, Naoto IMAE, Keisuke OZAKI, Eiji KAKUTANI, Junichi SHIBATA
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Publication number: 20160320899Abstract: [Object] To provide a pressure detector capable of accurately detecting a pressing force. [Solution] A pressure detector according to the present invention includes a first piezoelectric sheet 3a, a second piezoelectric sheet 3b located so as to be close to or in contact with the first piezoelectric sheet 3a, and a detection electrode 4 that sandwiches the first piezoelectric sheet 3a and the second piezoelectric sheet 3b. The first piezoelectric sheet 3a and the second piezoelectric sheet 3b are composed of materials having identical characteristics and have a thickness of 5 ?m to 50 ?m. Potential differences respectively generated between surfaces on a support substrate 1 side and surfaces opposite to the support substrate 1 of the first piezoelectric sheet 3a and the second piezoelectric sheet 3b when the first piezoelectric sheet 3a and the second piezoelectric sheet 3b are pulled in an in-plane direction have a relationship expressed by expression 1: V1/V2<0.Type: ApplicationFiled: March 12, 2014Publication date: November 3, 2016Applicant: NISSHA PRINTING CO., LTD.Inventors: Yuji Watazu, Keisuke Ozaki, Eiji Kakutani, Junichi Shibata
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Patent number: 9445322Abstract: Since OFDM (Orthogonal Frequency Division Multiplexing), which is a downlink access scheme used for an LTE (Long Term Evolution) communication system, is weak at interference, it is preferable that the number of base stations for transmitting the same E-MBMS (Evolved Multimedia Broadcast Multicast Service) data be not excessive. Thus, the mobile terminal performs: processing of obtaining measurement quality values by measuring reception quality of each base station; processing of deciding on whether the measurement quality value of a serving base station exceeds a certain receiving level; processing of adding measurement quality values of other base stations to the measurement quality value of the serving base station until the sum exceeds the certain receiving level; and processing of notifying the serving base station of the serving base station and other base stations as candidates for an active set for E-MBMS.Type: GrantFiled: June 6, 2014Date of Patent: September 13, 2016Assignee: TCL COMMUNICATION TECHNOLOGY HOLDINGS LIMITEDInventors: Mitsuru Mochizuki, Miho Maeda, Yasushi Iwane, Noriyuki Fukui, Tetsuya Mishuku, Michiaki Takano, Ryoichi Fujie, Shigenori Tani, Akira Okubo, Keisuke Ozaki
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Patent number: 9417725Abstract: A piezoelectric sensor that can perform position detection and load detection. The touch panel having press detection function can detect the pressing load inputted to the pressing surface. An upper electrode, an upper insert member, an intermediate electrode, a lower insert member, and a lower electrode are arranged away from the pressing surface in this order. Among the upper electrode, the intermediate electrode, and the lower electrode, capacitance detection electrodes Cx, Cy for detecting the pressing position, and detection electrodes S for measuring the electric charge according to the pressure when the operation is inputted to the touch panel 1 having press detection function are included. One of the upper insert member and the lower insert member is composed of an insulating body, and the other is composed of a piezoelectric body.Type: GrantFiled: May 22, 2014Date of Patent: August 16, 2016Assignee: NISSHA PRINTING CO., LTD.Inventors: Yuji Watazu, Yoshiko Suetomi, Eiji Kakutani, Keisuke Ozaki, Junichi Shibata, Shuzo Okumura, Ryomei Omote, Juichi Murata, Takao Hashimoto
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Publication number: 20160231849Abstract: A piezoelectric sensor that can perform position detection and load detection. The touch panel having press detection function can detect the pressing load inputted to the pressing surface. An upper electrode, an upper insert member, an intermediate electrode, a lower insert member, and a lower electrode are arranged away from the pressing surface in this order. Among the upper electrode, the intermediate electrode, and the lower electrode, capacitance detection electrodes Cx, Cy for detecting the pressing position, and detection electrodes S for measuring the electric charge according to the pressure when the operation is inputted to the touch panel 1 having press detection function are included. One of the upper insert member and the lower insert member is composed of an insulating body, and the other is composed of a piezoelectric body.Type: ApplicationFiled: May 22, 2014Publication date: August 11, 2016Inventors: Yuji WATAZU, Yoshiko SUETOMI, Eiji KAKUTANI, Keisuke OZAKI, Junichi SHIBATA, Shuzo OKUMURA, Ryomei OMOTE, Juichi MURATA, Takao HASHIMOTO
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Publication number: 20160124560Abstract: A piezoelectric sensor in which position detection and load detection can be achieved. The piezoelectric sensor includes a piezoelectric layer interposed between the upper electrode and the lower electrode. In the piezoelectric sensor, at least one of the upper electrode and the lower electrode includes a plurality of electrodes patterns.Type: ApplicationFiled: May 21, 2014Publication date: May 5, 2016Inventors: Yuji WATAZU, Yoshiko SUETOMI, Eiji KAKUTANI, Keisuke OZAKI, Junichi SHIBATA, Katsumi TOKUNO, Shuzo OKUMURA, Ryomei OMOTE
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Publication number: 20160117035Abstract: A piezoelectric sensor capable of position detection and load detection within the sensor. The sensor includes a piezoelectric layer that generates an electric charge when pressed by an inputting means, a first electrode that is arranged on a first main face of the piezoelectric layer, a second electrode that is arranged on a second main face of the piezoelectric layer opposite the first main face, a first capacitor or a first resonant circuit connected to the first electrode, and a first detection section connected to the first electrode.Type: ApplicationFiled: May 22, 2014Publication date: April 28, 2016Applicant: Nissha Printing, Co., Ltd.Inventors: Yuji Watazu, Eiji Kakutani, Keisuke Ozaki, Junichi Shibata
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Publication number: 20150355771Abstract: A touch panel equipped with both a capacitive sensor and a piezoelectric sensor, wherein the touch panel solves the problems of increased panel thickness, changes in the optical properties, and increased manufacturing costs. This touch panel is provided with force measurement using a piezoelectric body and capacitive point detection. The force measurement uses a pair of electrodes arranged with the piezoelectric body sandwiched therebetween. The point detection uses one electrode and another electrode. At least one top electrode is disposed on the side of the top surface of the piezoelectric body, and at least one bottom electrode is disposed on the side of the bottom surface of the piezoelectric body. One electrode among the pair of electrodes used in force measurement is a bottom electrode, and at least one electrode among the two electrodes used in point detection is a top electrode.Type: ApplicationFiled: December 25, 2013Publication date: December 10, 2015Inventors: Yuji WATAZU, Junichi SHIBATA, Shuzo OKUMURA, Keisuke OZAKI, Takao HASHIMOTO
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Patent number: 9042481Abstract: A transmitter is capable of suppressing a PAPR to be low and efficiently amplifying transmit power. The transmitter generates a transmission signal by oversampling a modulated signal, and includes a modulation unit that performs a modulation process on an information sequence and that generates a constant envelope signal and a phase interpolation unit that inserts a predetermined number of signals identical in amplitude to signal points of the constant envelope signal between the signal points so that signal points including original signal points are located equidistantly.Type: GrantFiled: September 7, 2012Date of Patent: May 26, 2015Assignee: Mitsubishi Electric CorporationInventors: Keisuke Ozaki, Akihiro Okazaki, Koji Tomitsuka
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Publication number: 20140334572Abstract: A transmitter is capable of suppressing a PAPR to be low and efficiently amplifying transmit power. The transmitter generates a transmission signal by oversampling a modulated signal, and includes a modulation unit that performs a modulation process on an information sequence and that generates a constant envelope signal and a phase interpolation unit that inserts a predetermined number of signals identical in amplitude to signal points of the constant envelope signal between the signal points so that signal points including original signal points are located equidistantly.Type: ApplicationFiled: September 7, 2012Publication date: November 13, 2014Applicant: Mitsubishi Electric CorporationInventors: Keisuke Ozaki, Akihiro Okazaki, Koji Tomitsuka
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Publication number: 20140286187Abstract: Since OFDM (Orthogonal Frequency Division Multiplexing), which is a downlink access scheme used for an LTE (Long Term Evolution) communication system, is weak at interference, it is preferable that the number of base stations for transmitting the same E-MBMS (Evolved Multimedia Broadcast Multicast Service) data be not excessive. Thus, the mobile terminal performs: processing of obtaining measurement quality values by measuring reception quality of each base station; processing of deciding on whether the measurement quality value of a serving base station exceeds a certain receiving level; processing of adding measurement quality values of other base stations to the measurement quality value of the serving base station until the sum exceeds the certain receiving level; and processing of notifying the serving base station of the serving base station and other base stations as candidates for an active set for E-MBMS.Type: ApplicationFiled: June 6, 2014Publication date: September 25, 2014Applicant: Mitsubishi Electric CorporationInventors: Mitsuru MOCHIZUKI, Miho MAEDA, Yasushi IWANE, Noriyuki FUKUI, Tetsuya MISHUKU, Michiaki TAKANO, Ryoichi FUJIE, Shigenori TANI, Akira OKUBO, Keisuke OZAKI