Patents by Inventor Masaaki Usui
Masaaki Usui 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: 20220278692Abstract: An AD converter includes a plurality of analog input terminals, a reference signal generation circuit that generates an analog reference signal, a sample-and-hold unit that includes a plurality of sample-and-hold circuits sampling the analog reference signal or one of analog input signals from the analog input terminals, a control unit that controls the sample-and-hold unit, and a conversion unit that converts an output signal from the sample-and-hold unit into a digital signal. The control unit controls the sample-and-hold unit to perform the output operation for analog input signal and the sampling operation for the analog reference signal.Type: ApplicationFiled: March 1, 2021Publication date: September 1, 2022Inventor: Masaaki USUI
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Patent number: 10003351Abstract: An object of the present invention is to shorten time required for detecting disconnection in an input terminal of an A/D conversion circuit. A semiconductor device includes a first input channel that couples a first input terminal and an A/D conversion unit to each other, a second input channel that couples a second input terminal and the A/D conversion unit to each other, and a control circuit unit that separates the second input channel from the second input terminal and the A/D conversion unit to charge or discharge the second input channel when a signal input into the first input terminal is sampled by the A/D conversion unit.Type: GrantFiled: September 18, 2017Date of Patent: June 19, 2018Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Masaaki Usui, Shunsuke Nakano
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Publication number: 20180041220Abstract: An object of the present invention is to shorten time required for detecting disconnection in an input terminal of an A/D conversion circuit. A semiconductor device includes a first input channel that couples a first input terminal and an A/D conversion unit to each other, a second input channel that couples a second input terminal and the A/D conversion unit to each other, and a control circuit unit that separates the second input channel from the second input terminal and the A/D conversion unit to charge or discharge the second input channel when a signal input into the first input terminal is sampled by the A/D conversion unit.Type: ApplicationFiled: September 18, 2017Publication date: February 8, 2018Inventors: Masaaki USUI, Shunsuke NAKANO
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Patent number: 9793911Abstract: An object of the present invention is to shorten time required for detecting disconnection in an input terminal of an A/D conversion circuit. A semiconductor device includes a first input channel that couples a first input terminal and an A/D conversion unit to each other, a second input channel that couples a second input terminal and the A/D conversion unit to each other, and a control circuit unit that separates the second input channel from the second input terminal and the A/D conversion unit to charge or discharge the second input channel when a signal input into the first input terminal is sampled by the A/D conversion unit.Type: GrantFiled: September 14, 2016Date of Patent: October 17, 2017Assignee: RENESAS ELECTRONICS CORPORATIONInventors: Masaaki Usui, Shunsuke Nakano
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Publication number: 20170093419Abstract: An object of the present invention is to shorten time required for detecting disconnection in an input terminal of an A/D conversion circuit. A semiconductor device includes a first input channel that couples a first input terminal and an A/D conversion unit to each other, a second input channel that couples a second input terminal and the A/D conversion unit to each other, and a control circuit unit that separates the second input channel from the second input terminal and the A/D conversion unit to charge or discharge the second input channel when a signal input into the first input terminal is sampled by the A/D conversion unit.Type: ApplicationFiled: September 14, 2016Publication date: March 30, 2017Inventors: Masaaki USUI, Shunsuke NAKANO
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Patent number: 7676417Abstract: A method and system for collectively displaying in real-time on the Internet the status of personal assets and transactions. The system comprises a plurality of asset databases corresponding to a plurality of financial institutions; storing portfolio information related to total assets in the above-mentioned plurality of financial institutions; a unified asset management server for receiving asset information from the above-mentioned plurality of financial institutions and storing same respectively in the above-mentioned plurality of asset databases, and preparing the above-mentioned portfolio based on the above-mentioned plurality of asset databases and storing the same; an asset management database for managing a user's assets; and a financial institution server connected to the above-mentioned authentication database, the above-mentioned asset management database, and the above-mentioned transaction management database. The unified asset management server prepares a portfolio of all assets.Type: GrantFiled: May 5, 2006Date of Patent: March 9, 2010Inventor: Masaaki Usui
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Publication number: 20060206400Abstract: A method and system for collectively displaying in real-time on the Internet the status of personal assets and transactions. The system comprises a plurality of asset databases corresponding to a plurality of financial institutions; storing portfolio information related to total assets in the above-mentioned plurality of financial institutions; a unified asset management server for receiving asset information from the above-mentioned plurality of financial institutions and storing same respectively in the above-mentioned plurality of asset databases, and preparing the above-mentioned portfolio based on the above-mentioned plurality of asset databases and storing the same; an asset management database for managing a user's assets; and a financial institution server connected to the above-mentioned authentication database, the above-mentioned asset management database, and the above-mentioned transaction management database. The unified asset management server prepares a portfolio of all assets.Type: ApplicationFiled: May 5, 2006Publication date: September 14, 2006Inventor: Masaaki Usui
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Patent number: 7069241Abstract: A method and system for collectively displaying in real-time on the Internet the status of personal assets and transactions. The system comprises a plurality of asset databases corresponding to a plurality of financial institutions; storing portfolio information related to total assets in the above-mentioned plurality of financial institutions; a unified asset management server for receiving asset information from the above-mentioned plurality of financial institutions and storing same respectively in the above-mentioned plurality of asset databases, and preparing the above-mentioned portfolio based on the above-mentioned plurality of asset databases and storing the same; an asset management database for managing a user's assets; and a financial institution server connected to the above-mentioned authentication database, the above-mentioned asset management database, and the above-mentioned transaction management database. The unified asset management server prepares a portfolio of all assets.Type: GrantFiled: October 6, 2000Date of Patent: June 27, 2006Inventor: Masaaki Usui
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Publication number: 20030061285Abstract: The present invention is directed to providing an interactive communication system which implements real-time interactive communication using an audio-visual tool. In one embodiment, the system provides an interactive communication system and method that allows interactive communication simultaneously using a real-time moving image and voice over a network. In another embodiment, the system and method allows interactive communication using real-time images and voice between a plurality of users. In a further embodiment, the system and method combines the direct transmission of text data and other information with real-time transmission of the images all the users' and voices.Type: ApplicationFiled: September 25, 2001Publication date: March 27, 2003Inventors: Tatsuo Usui, Masaaki Usui
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Publication number: 20020186781Abstract: Methods and apparatus are described for transmitting information via a transmission medium. First information represented according to a first number system of a first order is received. The first information is converted to second information, the second information being represented according to a second number system of a second order, the second order being greater than the first order. The second information is then represented using a first number of unique signal characteristics, the first number corresponding to the second order. The second information is then transmitted via the transmission medium.Type: ApplicationFiled: May 8, 2001Publication date: December 12, 2002Inventor: Masaaki Usui
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Patent number: 5151373Abstract: An electrode structure of a solar cell includes a metal wire fixed to the light incident surface of the solar cell with an electrically conductive adhesive. An electrode production method of a solar cell includes applying an electrically conductive adhesive to at least one of a portion of a metal wire and a portion of the light incident surface of the solar cell, pressing the metal wire into a predetermined position of the light incident surface of the solar cell, and solidifying the conductive adhesive to fix the metal wire.Type: GrantFiled: September 23, 1991Date of Patent: September 29, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Mikio Deguchi, Takushi Itagaki, Masaaki Usui
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Patent number: 5131956Abstract: A photovoltaic semiconductor device includes a first conductivity type silicon substrate having a first main surface, a first conductivity type compound semiconductor layer disposed on a first, major portion of the first main surface of the silicon substrate, a second conductivity type compound semiconductor layer disposed on the first conductivity type compound semiconductor layer, a first electrode connected to the second conductivity type compound semiconductor layer, a portion of the first electrode being disposed on a second, minor portion of the first main surface of the silicon substrate with an intervening insulating film, and a second electrode disposed on a third, minor portion of the first main surface of the silicon substrate.Type: GrantFiled: March 28, 1991Date of Patent: July 21, 1992Assignees: Mitsubishi Denki Kabushiki Kaisha, Nippon Telegraph and Telephone CorporationInventors: Takahiko Oohara, Masaaki Usui, Nobuyoshi Ogasawara, Kotaro Mitsui
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Patent number: 5084107Abstract: An electrode structure of a solar cell includes a metal wire fixed to the light incident surface of the solar cell with an electrically conductive adhesive. An electrode production method of a solar cell includes applying an electrically conductive adhesive to at least one of a portion of a metal wire and a portion of the light incident surface of the solar cell, pressing the metal wire into a predetermined position of the light incident surface of the solar cell, and solidifying the conductive adhesive to fix the metal wire.Type: GrantFiled: February 21, 1990Date of Patent: January 28, 1992Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Mikio Deguchi, Takushi Itagaki, Masaaki Usui