Patents by Inventor Masakazu Kawashita
Masakazu Kawashita 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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Patent number: 9740153Abstract: A power control device includes non-volatile memory, a controller, and a logic circuit. The non-volatile memory includes a function of externally outputting a logical state of a bit stored in a specific area as a state hold signal that indicates an ON/OFF state of a device function unit before a power cutoff. The controller controls the ON/OFF state of the device function unit and also writes the ON/OFF state of the device function unit to the specific area of the non-volatile memory. The logic circuit controls power supply to the controller on the basis of a logic level of the state hold signal from the non-volatile memory.Type: GrantFiled: June 2, 2014Date of Patent: August 22, 2017Assignee: FUJI XEROX CO., LTD.Inventors: Tadamasa Sakamaki, Shinho Ikeda, Yuji Murata, Hiroaki Yamamoto, Masakazu Kawashita, Shunsuke Kasahara
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Patent number: 9071718Abstract: An information processing apparatus includes an execution unit that executes a program, a main storage unit that includes a first non-volatile memory which is readable and writable and is capable of retaining stored information even when no power is supplied and is provided with a first storage area which stores the program executed by the execution unit and a second storage area which stores data generated by the execution of the program by the execution unit, a connection unit that connects the execution unit and the main storage unit, and a condition storage unit that includes a second non-volatile memory which is readable and writable and is capable of retaining stored information even when no power is supplied and stores conditions which are set by the connection unit to transmit and receive the program and the data between the execution unit and the main storage unit.Type: GrantFiled: August 16, 2012Date of Patent: June 30, 2015Assignee: FUJI XEROX CO., LTD.Inventors: Yuji Murata, Shinho Ikeda, Masakazu Kawashita, Hideki Yamasaki, Tadamasa Sakamaki, Binhui Liu
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Patent number: 8964778Abstract: A communication control device includes: a first processing unit that converts an electrical signal received by a communication channel into digital data and outputs the digital data, and in a second operation mode in which an amount of power supplied to the communication control device is lower than in a first operation mode, outputs a notification signal upon receiving an electrical signal indicating an arrival of packet data; a clock controller that, in the second operation mode, initiates supplying a clock signal upon receiving the notification signal; and a second processing unit that (i) has a receiving unit that extracts packet data from the digital data and outputs the extracted packet data, and (ii) in the second operation mode, stops receiving packet data during a time that the clock signal is not supplied, and upon reception of the clock signal, starts receiving packet data using the received clock signal.Type: GrantFiled: September 28, 2009Date of Patent: February 24, 2015Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshifumi Bando, Hiroaki Yamamoto, Masahiko Kikuchi, Yuichi Kawata, Masakazu Kawashita, Keita Sakakura
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Publication number: 20150012117Abstract: A power control device includes non-volatile memory, a controller, and a logic circuit. The non-volatile memory includes a function of externally outputting a logical state of a bit stored in a specific area as a state hold signal that indicates an ON/OFF state of a device function unit before a power cutoff. The controller controls the ON/OFF state of the device function unit and also writes the ON/OFF state of the device function unit to the specific area of the non-volatile memory. The logic circuit controls power supply to the controller on the basis of a logic level of the state hold signal from the non-volatile memory.Type: ApplicationFiled: June 2, 2014Publication date: January 8, 2015Applicant: FUJI XEROX CO., LTD.Inventors: Tadamasa SAKAMAKI, Shinho IKEDA, Yuji MURATA, Hiroaki YAMAMOTO, Masakazu KAWASHITA, Shunsuke KASAHARA
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Patent number: 8797575Abstract: A communication control apparatus including: a count portion that counts the number of received data; and a discard portion that is provided at an upstream side of a control portion on a forwarding route of the received data, and discards received data according to a counted value by the count portion.Type: GrantFiled: August 17, 2010Date of Patent: August 5, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Yuichi Kawata, Yoshifumi Bando, Keita Sakakura, Hiroaki Yamamoto, Kenichi Takahashi, Masakazu Kawashita
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Patent number: 8724156Abstract: An image forming apparatus includes an image forming unit that forms an image and a controller that controls the image forming unit, wherein the controller includes a first execution unit that executes a first program, a first main memory that includes a first non-volatile memory, is connected to the first execution unit, and stores a first start program, a first transmission and reception controller that is connected to the first bus, controls the transmission and reception of data, and includes a volatile memory, a second execution unit that is connected to the first execution unit and executes a second program, a second main memory that includes a second non-volatile memory, is connected to the second execution unit, and stores a second start program, and a second transmission and reception controller that is connected to the second bus, controls the transmission and reception of data, and includes a third non-volatile memory.Type: GrantFiled: September 14, 2012Date of Patent: May 13, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Shinho Ikeda, Yuji Murata, Masakazu Kawashita, Hideki Yamasaki, Tadamasa Sakamaki, Binhui Liu
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Patent number: 8638455Abstract: A program executing apparatus, includes: a nonvolatile memory that stores a program for activating an equipment and a variable used in the program and sustains the stored program and the variable even though power is not supplied, the program and the variable being able to be read out and written into the nonvolatile memory; and an executing unit that transmits the program and the variable to the nonvolatile memory when the activation of the equipment is instructed at an initial status where the program and the variable are not stored in the nonvolatile memory, and successively executes the program using the variable stored in the nonvolatile memory, and, when the activation of the equipment is re-instructed, executes the program using the variable stored in the nonvolatile memory.Type: GrantFiled: November 14, 2011Date of Patent: January 28, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Tadashi Hata, Masayoshi Kikuta, Tadamasa Sakamaki, Shunsuke Kasahara, Binhui Liu, Terutake Hayashi, Hiroaki Yamamoto, Masakazu Kawashita, Hideki Yamasaki, Yoshifumi Bando, Yuji Murata, Shinho Ikeda
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Publication number: 20130235419Abstract: An image forming apparatus includes an image forming unit that forms an image and a controller that controls the image forming unit, wherein the controller includes a first execution unit that executes a first program, a first main memory that includes a first non-volatile memory, is connected to the first execution unit, and stores a first start program, a first transmission and reception controller that is connected to the first bus, controls the transmission and reception of data, and includes a volatile memory, a second execution unit that is connected to the first execution unit and executes a second program, a second main memory that includes a second non-volatile memory, is connected to the second execution unit, and stores a second start program, and a second transmission and reception controller that is connected to the second bus, controls the transmission and reception of data, and includes a third non-volatile memory.Type: ApplicationFiled: September 14, 2012Publication date: September 12, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Shinho IKEDA, Yuji MURATA, Masakazu KAWASHITA, Hideki YAMASAKI, Tadamasa SAKAMAKI, Binhui LIU
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Publication number: 20130229681Abstract: An information processing apparatus includes an execution unit that executes a program, a main storage unit that includes a first non-volatile memory which is readable and writable and is capable of retaining stored information even when no power is supplied and is provided with a first storage area which stores the program executed by the execution unit and a second storage area which stores data generated by the execution of the program by the execution unit, a connection unit that connects the execution unit and the main storage unit, and a condition storage unit that includes a second non-volatile memory which is readable and writable and is capable of retaining stored information even when no power is supplied and stores conditions which are set by the connection unit to transmit and receive the program and the data between the execution unit and the main storage unit.Type: ApplicationFiled: August 16, 2012Publication date: September 5, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Yuji MURATA, Shinho IKEDA, Masakazu KAWASHITA, Hideki YAMASAKI, Tadamasa SAKAMAKI, Binhui LIU
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Patent number: 8475826Abstract: The titanium oxide-organic polymer composite material for artificial bone obtained by forming titania gel on the surface of said base material by titania solution treatment to dip into a solution of 0° C. to 50° C. temperature for from several seconds to 1 week obtained by adding a solution consisting of acidic alcohol and water into alcohol solution of titaniumtetraalcoxide to a base material composed of a polymer compound selected from a group consisting of polyolefin, polyester and nylon, and modifying to a titanium oxide membrane which forms apatite having similar Ca/P atom ratio to an apatite of mammalian's bone in supersaturated aqueous solution to apatite or from a body fluid of mammalian by dipping said base material on the surface of which titania gel is formed into hot water of. 50° C. to 95° C. or solution of room temperature to 95° C. to which acid is added.Type: GrantFiled: June 8, 2010Date of Patent: July 2, 2013Assignee: Japan Science & Technology AgencyInventors: Tadashi Kokubo, Masakazu Kawashita, Takashi Nakamura
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Patent number: 8390856Abstract: An image forming apparatus includes: a communication unit that receives a request that requests a reply and includes a source of the request and a destination of the request; and a controller that returns from a low electric power condition after moving into the low electric power condition of which the power consumption is low, and that controls the communication unit, wherein when the controller is in the low electric power condition, the communication unit returns the reply to the request received and detects a duplication between an identification information that identifies the source and an identification information that identifies the destination based on the request.Type: GrantFiled: September 16, 2009Date of Patent: March 5, 2013Assignee: Fuji Xerox Co., Ltd.Inventors: Yuichi Kawata, Masakazu Kawashita, Yoshifumi Bando, Keita Sakakura, Masahiko Kikuchi, Hiroaki Yamamoto
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Publication number: 20120331236Abstract: A data processing apparatus includes an operation unit, a writable and readable volatile register, a writable and readable nonvolatile memory, first and second writing units and a write-back unit. The operation unit performs an arithmetic operation and a logical operation. The writable and readable volatile register stores data used in the operations performed by the operation unit. The writable and readable nonvolatile memory stores the data in parallel with the volatile register. The data stored in the nonvolatile memory is the data stored in the volatile register. The first writing unit writes the data in the volatile register. The second writing unit writes the data in the nonvolatile memory in parallel with the first writing unit every time the data is written in the volatile register. The write-back unit writes back the data stored in the nonvolatile memory to the volatile register when a power supply is turned on.Type: ApplicationFiled: November 2, 2011Publication date: December 27, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Masayoshi KIKUTA, Binhui LIU, Tadashi HATA, Shunsuke KASAHARA, Terutake HAYASHI, Hiroaki YAMAMOTO, Masakazu KAWASHITA, Hideki YAMASAKI, Yoshifumi BANDO, Yuji MURATA, Shinho IKEDA, Tadamasa SAKAMAKI
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Publication number: 20120327440Abstract: A program executing apparatus, includes : a nonvolatile memory that stores a program for activating an equipment and a variable used in the program and sustains the stored program and the variable even though power is not supplied, the program and the variable being able to be read out and written into the nonvolatile memory; and an executing unit that transmits the program and the variable to the nonvolatile memory when the activation of the equipment is instructed at an initial status where the program and the variable are not stored in the nonvolatile memory, and successively executes the program using the variable stored in the nonvolatile memory, and, when the activation of the equipment is re-instructed, executes the program using the variable stored in the nonvolatile memory.Type: ApplicationFiled: November 14, 2011Publication date: December 27, 2012Applicant: FUJI XEROX CO., LTD.Inventors: Tadashi HATA, Masayoshi KIKUTA, Tadamasa SAKAMAKI, Shunsuke KASAHARA, Binhui LIU, Terutake HAYASHI, Hiroaki YAMAMOTO, Masakazu KAWASHITA, Hideki YAMASAKI, Yoshifumi BANDO, Yuji MURATA, Shinho IKEDA
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Patent number: 8250272Abstract: An interrupt control apparatus includes: an interrupt request supply unit that supplies interrupt request information; a processing unit that performs interrupt processing based on the interrupt request information supplied by the interrupt request supply unit; and a time measuring unit that is used to measure an elapse of a predefined time period from a time point when the interrupt request supply unit starts to supply the interrupt request information, wherein: even if new interrupt cause information is stored during the time when the time measuring unit is measuring the elapse of the predefined time period, the interrupt request supply unit does not supply interrupt request information based on the new interrupt cause information to the processing unit; and after the elapsed time measured by the time measuring unit reaches the predefined time period, the interrupt request supply unit supplies the interrupt request information to the processing unit.Type: GrantFiled: September 24, 2009Date of Patent: August 21, 2012Assignee: Fuji Xerox Co., Ltd.Inventors: Keita Sakakura, Hiroaki Yamamoto, Yuichi Kawata, Masahiko Kikuchi, Masakazu Kawashita, Yoshifumi Bando
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Patent number: 8040540Abstract: A communication information processing device that includes a reception component, an image processing component, a memory component and a control component is provided. The reception component receives communication information through an external communication line. The image processing component performs image processing on image information. The memory component is provided for memorizing image information for image processing by the image processing component, and that memorizes image information and the communication information received by the reception component. The control component, when a pre-specified setting condition is satisfied, controls the memory component so as to delete the communication information memorized in the memory component and to memorize image information to be used by the image processing component as a priority.Type: GrantFiled: April 2, 2008Date of Patent: October 18, 2011Assignee: Fuji Xerox Co., Ltd.Inventors: Yuichi Kawata, Hiroaki Yamamoto, Masakazu Kawashita
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Publication number: 20110228316Abstract: A communication control apparatus including: a count portion that counts the number of received data; and a discard portion that is provided at an upstream side of a control portion on a forwarding route of the received data, and discards received data according to a counted value by the count portion.Type: ApplicationFiled: August 17, 2010Publication date: September 22, 2011Applicant: FUJI XEROX CO., LTD.Inventors: Yuichi KAWATA, Yoshifumi Bando, Keita Sakakura, Hiroaki Yamamoto, Kenichi Takahashi, Masakazu Kawashita
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Publication number: 20100246380Abstract: A communication control device includes: a first processing unit that converts an electrical signal received by a communication channel into digital data and outputs the digital data, and in a second operation mode in which an amount of power supplied to the communication control device is lower than in a first operation mode, outputs a notification signal upon receiving an electrical signal indicating an arrival of packet data; a clock controller that, in the second operation mode, initiates supplying a clock signal upon receiving the notification signal; and a second processing unit that (i) has a receiving unit that extracts packet data from the digital data and outputs the extracted packet data, and (ii) in the second operation mode, stops receiving packet data during a time that the clock signal is not supplied, and upon reception of the clock signal, starts receiving packet data using the received clock signal.Type: ApplicationFiled: September 28, 2009Publication date: September 30, 2010Applicant: FUJI XEROX CO., LTD.Inventors: Yoshifumi BANDO, Hiroaki YAMAMOTO, Masahiko KIKUCHI, Yuichi KAWATA, Masakazu KAWASHITA, Keita SAKAKURA
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Publication number: 20100250811Abstract: An interrupt controller includes: a timer that repeatedly measures a predesignated length of time; an interrupt request unit that, when data is received by a receiving unit while the timer is measuring the length of time, outputs an interrupt request after measurement of the length of time is completed; a measurement unit that measures a frequency of data reception of the receiving unit; and an updating unit that changes the length of time measured by the timer so as to be shorter than the predesignated length of time when the frequency of reception measured by the measurement unit exceeds a threshold frequency.Type: ApplicationFiled: September 23, 2009Publication date: September 30, 2010Applicant: FUJI XEROX CO., LTD.Inventors: Masakazu Kawashita, Hiroaki Yamamoto, Masahiko Kikuchi, Yuichi Kawata, Yoshifumi Bando, Keita Sakakura
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Publication number: 20100245893Abstract: An image forming apparatus includes: a communication unit that receives a request that requests a reply and includes a source of the request and a destination of the request; and a controller that returns from a low electric power condition after moving into the low electric power condition of which the power consumption is low, and that controls the communication unit, wherein when the controller is in the low electric power condition, the communication unit returns the reply to the request received and detects a duplication between an identification information that identifies the source and an identification information that identifies the destination based on the request.Type: ApplicationFiled: September 16, 2009Publication date: September 30, 2010Applicant: FUJI XEROX CO., LTD.Inventors: Yuichi KAWATA, Masakazu Kawashita, Yoshifumi Bando, Keita Sakakura, Masahiko Kikuchi, Hiroaki Yamamoto
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Publication number: 20100247739Abstract: The titanium oxide-organic polymer composite material for artificial bone obtained by forming titania gel on the surface of said base material by titania solution treatment to dip into a solution of 0° C. to 50° C. temperature for from several seconds to 1 week obtained by adding a solution consisting of acidic alcohol and water into alcohol solution of titaniumtetraalcoxide to a base material composed of a polymer compound selected from a group consisting of polyolefin, polyester and nylon, and modifying to a titanium oxide membrane which forms apatite having similar Ca/P atom ratio to an apatite of mammalian's bone in supersaturated aqueous solution to apatite or from a body fluid of mammalian by dipping said base material on the surface of which titania gel is formed into hot water of. 50° C. to 95° C. or solution of room temperature to 95° C. to which acid is added.Type: ApplicationFiled: June 8, 2010Publication date: September 30, 2010Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Tadashi Kokubo, Masakazu Kawashita, Takashi Nakamura