Patents by Inventor Kiyoshi Miura
Kiyoshi Miura 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: 6802030Abstract: A data transfer method includes a connection establishment step of detecting connection with a remote device and setting parameters for data transfer, and a transfer execution step of starting data transfer after completion of the connection establishment step and continuing data transfer until a transfer error is recognized to have occurred. In the transfer execution step, the frequency of errors in received data is monitored and, when the frequency reaches a predetermined value, a transfer error is recognized to have occurred.Type: GrantFiled: April 20, 2001Date of Patent: October 5, 2004Assignees: Sharp Kabushiki Kaisha, Sony CorporationInventors: Daisuke Nakano, Yuji Ichikawa, Kiyoshi Miura
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Publication number: 20040074227Abstract: A diagnostic system in which the accuracy of the diagnosis of the deterioration state of a catalyst in a catalytic converter for cleaning the exhaust gas of an internal combustion engine is enhanced without incurring a rise in cost. The temperature of the catalyst is estimated using the operating-state signal (for example, the flow rate of intake air or the width of a fuel injection pulse) of the engine by a diagnostic device. The conversion efficiency of the catalyst calculated from the outputs of oxygen sensors is corrected using the estimated temperature by the diagnostic device. The deterioration state of the catalyst is diagnosed on the basis of the corrected temperature by the diagnostic device.Type: ApplicationFiled: October 14, 2003Publication date: April 22, 2004Applicant: Hitachi, Ltd.Inventors: Takashi Mukaihira, Toshio Ishii, Kiyoshi Miura, Kazuya Kawano
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Publication number: 20020073693Abstract: A diagnostic system in which the accuracy of the diagnosis of the deterioration state of a catalyst in a catalytic converter for cleaning the exhaust gas of an internal combustion engine is enhanced without incurring a rise in cost. The temperature of the catalyst is estimated using the operating-state signal (for example, the flow rate of intake air or the width of a fuel injection pulse) of the engine by a diagnostic device. The conversion efficiency of the catalyst calculated from the outputs of oxygen sensors is corrected using the estimated temperature by the diagnostic device. The deterioration state of the catalyst is diagnosed on the basis of the corrected temperature by the diagnostic device.Type: ApplicationFiled: December 31, 2001Publication date: June 20, 2002Applicant: Hitachi, LtdInventors: Takashi Mukaihara, Toshio Ishii, Kiyoshi Miura, Kazuya Kawano
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Patent number: 6407606Abstract: A clock forming unit, a selection processing unit, and a dithering control unit are provided. In the clock forming unit, m-phase clock signals whose phases are mutually deviated by a predetermined amount at a desired frequency are formed. The clock signals formed in the clock forming unit are supplied to the selection processing unit. A control signal is supplied from the dithering control unit to the selection processing unit. In the selection processing unit, by sequentially selecting one of the m-phase clock signals in response to the control signal from the dithering control unit, the phase is fluctuated forward and backward with a predetermined relation within a range of a precision that is permitted by a communication system serving as a supplying destination. A second clock signal in which a peak on a spectrum is spread is obtained from the selection processing unit.Type: GrantFiled: November 17, 2000Date of Patent: June 18, 2002Assignee: Sony CorporationInventor: Kiyoshi Miura
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Patent number: 6388492Abstract: A clock generation circuit including a multiphase clock generation circuit for generating multiphase clocks of a predetermined frequency, pulse generation circuits for generating a plurality of non-overlap pulses by using at least a part of the multiphase clocks of the multiphase clock generation circuit, and a circuit for obtaining an OR of the plurality of non-overlap pulses of the pulse generation circuits and thereby generating a clock not having a simple whole multiple ratio relationship with respect to a frequency of the multiphase clocks or a clock having a higher frequency without causing an increase of power consumption and an increase of chip area.Type: GrantFiled: January 26, 2001Date of Patent: May 14, 2002Assignee: Sony CorporationInventors: Kiyoshi Miura, Yuki Moriya
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Publication number: 20020050135Abstract: A system having an NOx adsorption catalyst in an exhaust gas flow channel of the internal combustion engine, and adsorbing and capturing NOx in an oxidative atmosphere of an exhaust gas during lean burn running and then producing a reductive atmosphere thereby regenerating the adsorption catalyst, wherein a reduction treatment of NOx is carried out based on an estimated NOx purification rate and the NOx purification rate in the lean burn exhaust gas of the internal combustion engine is always maintained at or about a predetermined level thereby decreasing the amount of exhaust gas discharged.Type: ApplicationFiled: November 21, 2001Publication date: May 2, 2002Applicant: HITACHI, LTD.Inventors: Toshio Manaka, Osamu Kuroda, Kiyoshi Miura
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Patent number: 6359380Abstract: In a color cathode ray tube having a vacuum vessel that comprises a panel, a neck for housing an electron gun therein, and a funnel for connecting the panel and the neck, in which the inner surface of the panel glass is coated with a phosphor layer in different colors to give a display screen; the panel glass contains ions capable of selectively absorbing light within the range of visible rays, and its outer surface is coated with an electric conductive surface film.Type: GrantFiled: March 1, 1999Date of Patent: March 19, 2002Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., LtdInventors: Masahiro Nishizawa, Toshio Tojo, Norikazu Uchiyama, Maki Ito, Kiyoshi Miura, Hidetsugu Matsukiyo, Tomoji Ohishi, Daigoro Kamoto
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Patent number: 6343466Abstract: A diagnostic system in which the accuracy of the diagnosis of the deterioration state of a catalyst in a catalytic converter for cleaning the exhaust gas of an internal combustion engine is enhanced without incurring a rise in cost. The temperature of the catalyst is estimated using the operating-state signal (for example, the flow rate of intake air or the width of a fuel injection pulse) of the engine by a diagnostic device. The conversion efficiency of the catalyst calculated from the outputs of oxygen sensors is corrected using the estimated temperature by the diagnostic device. The deterioration state of the catalyst is diagnosed on the basis of the corrected temperature by the diagnostic device.Type: GrantFiled: July 5, 2000Date of Patent: February 5, 2002Assignee: Hitachi, Ltd.Inventors: Takashi Mukaihira, Toshio Ishii, Kiyoshi Miura, Kazuya Kawano
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Publication number: 20020010824Abstract: In the bus initialization phase, the state is transferred to the reset start state (i.e., R1 state) first, and a bus reset signal is sent to all the connected partners for a predetermined period of time determined by the reset_time (ranging from 1.26 ƒÊm at the shortest to 1.40 ƒÊm at the longest). When it is acknowledged that bus reset signals have been received from all the connected partners and a predetermined period of time has elapsed, the state is transferred to the reset wait state (R1 state). In this arrangement, there is no fear that an IDLE signal received in a reset wait state from a partner connected by use of a long cable will result in an erroneous transfer to a tree identification phase, and the bus reset signal will be received from the connected partner at the tree identification phase so as to return again to the R0 state at the bus initialization phase.Type: ApplicationFiled: April 5, 2001Publication date: January 24, 2002Inventors: Sumihiro Okawa, Kiyoshi Miura
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Patent number: 6327540Abstract: The invention provides a method of detecting an end point, an end point detector, a computer memory product and a chemical mechanical polishing apparatus, in which a physical quantity changing in accordance with proceeding of a process is measured, first time series data and second time series data delayed by a predetermined time from the first time series data are extracted on the basis of the measured Physical quantity, and the end point of the process is detected on the basis of correlation between the first time series data and the second time series data. Thus, the end point can be detected in a shorter period of time without previously performing plural tests.Type: GrantFiled: September 25, 1998Date of Patent: December 4, 2001Assignee: Tokyo Electron Ltd.Inventors: Takaya Miyano, Kiyoshi Miura, Kazuto Hasegawa, Yasuo Shirai
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Publication number: 20010044914Abstract: A data transfer method includes a connection establishment step of detecting connection with a remote device and setting parameters for data transfer, and a transfer execution step of starting data transfer after completion of the connection establishment step and continuing data transfer until a transfer error is recognized to have occurred. In the transfer execution step, the frequency of errors in received data is monitored and, when the frequency reaches a predetermined value, a transfer error is recognized to have occurred.Type: ApplicationFiled: April 20, 2001Publication date: November 22, 2001Inventors: Daisuke Nakano, Yuji Ichikawa, Kiyoshi Miura
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Patent number: 6305361Abstract: There is disclosed a leakage diagnosis of an evaporative system in an internal combustion engine, and more particularly there is disclosed an evaporative system in which a more accurate leakage diagnosis can be effected using a change in the pressure in the evaporative system, and such a diagnosis method is also disclosed. The evaporative system includes a gauge line having a gauge valve, which gauge line branches off from an evaporative gas line or an evaporative gas purge line, and communicates with a point upstream of an engine throttle valve or with the ambient atmosphere, a pressure sensor for detecting the pressure in the evaporative system, and a purge valve. A leakage diagnosis of this system is effected based on detected values of the pressure sensor obtained by opening and closing the purge valve and the gauge valve. Therefore, accurate results of the diagnosis can be obtained.Type: GrantFiled: March 30, 2000Date of Patent: October 23, 2001Assignee: Hitachi, Ltd.Inventors: Yutaka Takaku, Toshio Ishii, Kazuya Kawano, Nobuo Kurihara, Hiroshi Kimura, Kiyoshi Miura
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Publication number: 20010010475Abstract: A clock generation circuit including a multiphase clock generation circuit for generating multiphase clocks of a predetermined frequency, pulse generation circuits for generating a plurality of non-overlap pulses by using at least a part of the multiphase clocks of the multiphase clock generation circuit, and a circuit for obtaining an OR of the plurality of non-overlap pulses of the pulse generation circuits and thereby generating a clock not having a simple whole multiple ratio relationship with respect to a frequency of the multiphase clocks or a clock having a higher frequency without causing an increase of power consumption and an increase of chip area.Type: ApplicationFiled: January 26, 2001Publication date: August 2, 2001Applicant: Sony Corporation.Inventors: Kiyoshi Miura, Yuki Moriya
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Patent number: 6105556Abstract: There is disclosed a leakage diagnosis of an evaporative system in an internal combustion engine, and more particularly there is disclosed an evaporative system in which a more accurate leakage diagnosis can be effected using a change in the pressure in the evaporative system, and such a diagnosis method is also disclosed. The evaporative system includes a gauge line having a gauge valve, which gauge line branches off from an evaporative gas line or an evaporative gas purge line, and communicates with a point upstream of an engine throttle valve or with the ambient atmosphere, a pressure sensor for detecting the pressure in the evaporative system, and a purge valve. A leakage diagnosis of this system is effected based on detected values of the pressure sensor obtained by opening and closing the purge valve and the gauge valve. Therefore, accurate results of the diagnosis can be obtained.Type: GrantFiled: January 16, 1997Date of Patent: August 22, 2000Assignee: Hitachi, Ltd.Inventors: Yutaka Takaku, Toshio Ishii, Kazuya Kawano, Nobuo Kurihara, Hiroshi Kimura, Kiyoshi Miura
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Patent number: 6092368Abstract: In a diagnostic system for an exhaust gas purifying apparatus in an internal combustion engine, such as a diagnostic system suitable for evaluating the exhaust gas purifying performance of a specific component, as an exhaust gas component concentration corresponding to an operating condition of the engine or an operating condition of the catalyst is detected using an exhaust gas component system, and the evaluation and diagnosis of the exhaust gas purifying apparatus are conducted on the basis of the thus-detected value directly or after subjecting it to an integral processing. With such a diagnostic system, it is not necessary to dispose a sensor upstream of the catalyst in the exhaust gas purifying apparatus, for diagnosis of the catalyst, thus permitting the system to be less expensive, highly durable and afford a high diagnostic accuracy according to operating conditions.Type: GrantFiled: February 28, 1997Date of Patent: July 25, 2000Assignee: Hitachi, Ltd.Inventors: Toshio Ishii, Toshio Manaka, Yutaka Takaku, Kiyoshi Miura
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Patent number: 6085132Abstract: A diagnostic and control system first checks the current operation status of the vehicle engine, when a malfunction or abnormal condition is detected by diagnostic sensors. A selection of optimum corrective measures is then made and carried out taking into account the safety of the vehicle, based on current operational status of the engine. For this purpose, a set of prioritized corrective measures is determined beforehand for each of the individual monitored items, according to detected changes in the engine operating status. The individual control measures are selected considering the safety of the vehicle, possible measures to correct the malfunction, assuring vehicle operability, and maintaining appropriate engine operating parameters such as exhaust gas mixture, fuel consumption and the like.Type: GrantFiled: November 6, 1998Date of Patent: July 4, 2000Assignee: Hitachi, Ltd.Inventors: Toshio Ishii, Takashi Mukaihira, Yutaka Takaku, Kazuya Kawano, Kiyoshi Miura
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Patent number: 5964811Abstract: A diagnostic and control system first checks the current operation status of the vehicle engine, when a malfunction or abnormal condition is detected by diagnostic sensors. A selection of optimum corrective measures is then made and carried out taking into account the safety of the vehicle, based on current operational status of the engine. For this purpose, a set of prioritized corrective measures is determined beforehand for each of the individual monitored items, according to detected changes in the engine operating status. The individual control measures are selected considering the safety of the vehicle, possible measures to correct the malfunction, assuring vehicle operability, and maintaining appropriate engine operating parameters such as exhaust gas mixture, fuel consumption and the like.Type: GrantFiled: April 18, 1997Date of Patent: October 12, 1999Assignee: Hitachi, Ltd.Inventors: Toshio Ishii, Takashi Mukaihira, Yutaka Takaku, Kazuya Kawano, Kiyoshi Miura
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Patent number: 5880990Abstract: A semiconductor memory apparatus able to operate at a low voltage and thus preventing an increase of the operating current during charging and discharging. NMOS transistors are connected to the power supply line and bit lines, and the gates thereof are connected to a precharge signal supply line. PMOS transistors are connected to the connection points of the bit lines and sense amplifiers and the supply line of the power supply voltage. The gates thereof are connected to the precharge signal supply line through inverters. Transfer gates are connected to the connection points of the bit lines and the NMOS transistors. The gates thereof are connected to the column switch signal supply line. Only one bit line of the selected column is precharged to the power supply voltage level. The other bit lines are held at the predetermined low potential.Type: GrantFiled: March 18, 1998Date of Patent: March 9, 1999Assignee: Sony CorporationInventor: Kiyoshi Miura
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Patent number: 5754485Abstract: A semiconductor memory apparatus able to operate at a low voltage and thus preventing an increase of the operating current during charging and discharging. NMOS transistors are connected to the power supply line and bit lines, and the gates thereof are connected to a precharge signal supply line. PMOS transistors are connected to the connection points of the bit lines and sense amplifiers and the supply line of the power supply voltage. The gates thereof are connected to the precharge signal supply line through inverters. Transfer gates are connected to the connection points of the bit lines and the NMOS transistors. The gates thereof are connected to the column switch signal supply line. Only one bit line of the selected column is precharged to the power supply voltage level. The other bit lines are held at the predetermined low potential.Type: GrantFiled: August 20, 1996Date of Patent: May 19, 1998Assignee: Sony CorporationInventor: Kiyoshi Miura
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Patent number: 5649420Abstract: A diagnostic system in which the accuracy of the diagnosis of the deterioration state of a catalyst in a catalytic converter for cleaning the exhaust gas of an internal combustion engine is enhanced without incurring a rise in cost. The temperature of the catalyst is estimated using the operating-state signal (for example, the flow rate of intake air or the width of a fuel injection pulse) of the engine by a diagnostic device. The conversion efficiency of the catalyst calculated from the outputs of oxygen sensors is corrected using the estimated temperature by the diagnostic device. The deterioration state of the catalyst is diagnosed on the basis of the corrected temperature by the diagnostic device.Type: GrantFiled: June 14, 1996Date of Patent: July 22, 1997Assignee: Hitachi, Ltd.Inventors: Takashi Mukaihira, Toshio Ishii, Kiyoshi Miura, Kazuya Kawano