Patents by Inventor Junichi Ishii
Junichi Ishii 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: 20040249986Abstract: An object of the present invention is to provide a control unit for vehicle where increase in number of input/output and upgrading of function can easily be performed and, in addition to this, changing of a program in a control unit can easily be performed even when a single-chip micro-computer is used.Type: ApplicationFiled: April 8, 2003Publication date: December 9, 2004Applicant: Hitachi, Ltd.Inventors: Toshimichi Minowa, Yoshiyuki Yoshida, Junichi Ishii, Shigeki Morinaga, Hiroshi Katayama, Mitsuo Kayano, Kenichiro Kurata
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Publication number: 20040127595Abstract: Polyimide precursors contained in resin compositions of the present invention have a polymer structure unit represented by formula (1) below: 1Type: ApplicationFiled: October 24, 2003Publication date: July 1, 2004Inventors: Mamiko Nomura, Masatoshi Hasegawa, Junichi Ishii, Tadashi Akamatsu
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Patent number: 6594505Abstract: A mobile telephone system is capable of coping with a number of different mobile radio telephone systems by a single mobile radio telephone. When a mobile radio telephone exists inside a communication area of a first mobile radio telephone system, in case when a first mobile radio telephone system flag of a first base station and an existing second mobile radio telephone system flag of a second base station coincide with each other, the mobile radio telephone is to execute a mobile radio telephone communication using an existing mobile radio telephone communication protocol software. When the first and the second mobile radio telephone system flags do not coincide with each other, as downloading of a first mobile radio telephone communication protocol software used in the first base station is completed, a mobile radio telephone communication starts.Type: GrantFiled: July 7, 1999Date of Patent: July 15, 2003Assignee: NEC CorporationInventor: Junichi Ishii
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Patent number: 6591167Abstract: An object of the present invention is to provide a control unit for vehicle where increase in number of input/output and upgrading of function can easily be performed and, in addition to this, changing of a program in a control unit can easily be performed even when a single-chip micro-computer is used. In order to cope with an increase in input/output points and addition of function, a control unit is constructed such as to comprise interface software memory means storing an interface software program for connecting an application software program with an OS (operating system) in an internal ROM, a CPU (central processing unit) for performing computation of the application software program and the interface software program, a RAM (erasable memory) storing data such as the result of computation, an I/O unit for extending the control unit, and extending means for communicating memory data through a bus or a LAN.Type: GrantFiled: July 6, 2000Date of Patent: July 8, 2003Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Yoshiyuki Yoshida, Junichi Ishii, Shigeki Morinaga, Hiroshi Katayama, Mitsuo Kayano, Kenichiro Kurata
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Patent number: 6543422Abstract: A control device and a control method capable of eliminating a torque variation in changing an air/fuel ratio and establishing a compatibility of promotion in fuel economy with promotion in drivability is provided. The device includes an outer environment detector for detecting an outer environment in running a vehicle, a running environment determining device for predicting a current running environment in accordance with the outer environment, a data storage device for storing data for changing a driving characteristic, a selecting device for selecting the data, a control quantity calculator for calculating a control quantity based on the data, and a control actuator for controlling a control object.Type: GrantFiled: February 22, 2002Date of Patent: April 8, 2003Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Satoshi Kuragaki, Junichi Ishii
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Publication number: 20020078930Abstract: A control device and a control method capable of eliminating a torque variation in changing an air/fuel ratio and establishing a compatibility of promotion in fuel economy with promotion in drivability is provided. The device includes an outer environment detector for detecting an outer environment in running a vehicle, a running environment determining device for predicting a current running environment in accordance with the outer environment, a data storage device for storing data for changing a driving characteristic, a selecting device for selecting the data, a control quantity calculator for calculating a control quantity based on the data, and a control actuator for controlling a control object.Type: ApplicationFiled: February 22, 2002Publication date: June 27, 2002Applicant: Hitachi Ltd.Inventors: Toshimichi Minowa, Satoshi Kuragaki, Junichi Ishii
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Patent number: 6401694Abstract: A control device and a control method capable of eliminating a torque variation in changing an air/fuel ratio and establishing a compatibility of promotion in fuel economy with promotion in drivability is provided. The device includes an outer environment detector for detecting an outer environment in running a vehicle, a running environment determining device for predicting a current running environment in accordance with the outer environment, a data storage device for storing data for changing a driving characteristic, a selecting device for selecting the data, a control quantity calculator for calculating a control quantity based on the data, and a control actuator for controlling a control object.Type: GrantFiled: May 14, 2001Date of Patent: June 11, 2002Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Satoshi Kuragaki, Junichi Ishii
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Publication number: 20010020466Abstract: A control device and a control method capable of eliminating a torque variation in changing an air/fuel ratio and establishing a compatibility of promotion in fuel economy with promotion in drivability is provided. The device includes an outer environment detector for detecting an outer environment in running a vehicle, a running environment determining device for predicting a current running environment in accordance with the outer environment, a data storage device for storing data for changing a driving characteristic, a selecting device for selecting the data, a control quantity calculator for calculating a control quantity based on the data, and a control actuator for controlling a control object.Type: ApplicationFiled: May 14, 2001Publication date: September 13, 2001Applicant: Hitachi, Ltd.Inventors: Toshimichi Minowa, Satoshi Kuragaki, Junichi Ishii
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Patent number: 6260539Abstract: A control device and a control method capable of eliminating a torque variation in changing an air/fuel ratio and establishing a compatibility of promotion in fuel economy with promotion in drivability is provided. The device includes an outer environment detector for detecting an outer environment in running a vehicle, a running environment determining device for predicting a current running environment in accordance with the outer environment, a data storage device for storing data for changing a driving characteristic, a selecting device for selecting the data, a control quantity calculator for calculating a control quantity based on the data, and a control actuator for controlling a control object.Type: GrantFiled: January 19, 2000Date of Patent: July 17, 2001Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Satoshi Kuragaki, Junichi Ishii
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Patent number: 6240340Abstract: A vehicle which includes a plurality of peripheral systems has a plurality of control units which transmit data to each other via a local area network, and which control the peripheral systems in response to sensor signals received from vehicle operating parameter sensors. A first control unit has a memory which stores a first interface software program which receives input signals from sensors and processes such signals for controlling at least one peripheral system of the vehicle, by means of an application software program and first and second interface software programs. A second control unit has a memory which stores an application software program for processing input signals for controlling at least one other peripheral system of the vehicle via a third interface software program. The second control unit receives input data from the first control unit via the local area network.Type: GrantFiled: November 1, 1999Date of Patent: May 29, 2001Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Yoshiyuki Yoshida, Junichi Ishii, Shigeki Morinaga, Hiroshi Katayama, Mitsuo Kayano, Kenichiro Kurata
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Patent number: 6185260Abstract: A radio communication device using a quadrature modulation-demodulation circuit which enables DC offset error fluctuation to be corrected more accurately regardless of the condition of temperature variation or power source voltage fluctuation. A quadrature demodulation circuit inputs therein a QPSK signal to output a base band signal perpendicularly intersecting to the QPSK signal. A base band signal generation circuit inputs therein a transmission data to convert into two analog base band signals perpendicularly intersecting with each other. A quadrature modulation circuit inputs therein the analog base band signal and modulated frequency signal to output the QPSK signal. A switching circuit selects either one of the analog base band signal and the QPSK signal. An A/D conversion circuit quantizes an output signal of the switching circuit. An offset error detecting means detects DC offset error.Type: GrantFiled: May 29, 1998Date of Patent: February 6, 2001Assignee: NEC CorporationInventor: Junichi Ishii
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Patent number: 6032646Abstract: A control device and a control method capable of eliminating a torque variation in changing an air/fuel ratio and establishing a compatibility of promotion in fuel economy with promotion in drivability is provided. The device includes an outer environment detector for detecting an outer environment in running a vehicle, a running environment determining device for predicting a current running environment in accordance with the outer environment, a data storage device for storing data for changing a driving characteristic, a selecting device for selecting the data, a control quantity calculator for calculating a control quantity based on the data, and a control actuator for controlling a control object.Type: GrantFiled: July 2, 1999Date of Patent: March 7, 2000Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Satoshi Kuragaki, Junichi Ishii
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Patent number: 6009370Abstract: A vehicle control unit comprises an interface software memory for storing an interface software program for connecting an application software program with an operating system in an internal ROM, a central processing unit for performing computation of the application software program and the interface software program, an erasable memory for storing data such as the result of computation, an I/O unit for extending the control unit, and extending means for communicating memory data through a bus or a LAN. A single-chip micro-computer is used in vehicle control.Type: GrantFiled: May 4, 1998Date of Patent: December 28, 1999Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Yoshiyuki Yoshida, Junichi Ishii, Shigeki Morinaga, Hiroshi Katayama, Mitsuo Kayano, Kenichiro Kurata
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Patent number: 5975739Abstract: A control processor has an output pattern generating circuit operating in cooperation with a free running timer, and a virtual OCR program for virtually realizing a large number of timer outputs by use of the output pattern generating circuit. Because more timer outputs than the actually incorporated timers are handled, the function of timer outputs is implemented with a higher degree of freedom and in a wider range of applications. For its enhanced function and availability, the control processor costs less.Type: GrantFiled: July 24, 1995Date of Patent: November 2, 1999Assignee: Hitachi, Ltd.Inventors: Hiroshi Katayama, Mitsuo Kayano, Mitsuru Watabe, Junichi Ishii, Tetsuya Ichihashi, Shoji Sasaki, Satoshi Tanaka
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Patent number: 5968100Abstract: A vehicle control system provided with a plurality of sensors for detecting the condition of the vehicle, a vehicle control unit including a multiplexer, a programmable input signal matching module and a processor, and actuators for operating each part of the vehicle. The multiplexer and matching module are selected and switched in accordance with a sensor signal to be inputted. A plurality of sensor signals can be inputted through the switched multiplexer and matching module to the processor. Furthermore, the processor determines controls of vehicle operation on the basis of the inputted sensor signals and controls actuators in accordance with the determined controls.Type: GrantFiled: October 28, 1997Date of Patent: October 19, 1999Assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co., Ltd.Inventors: Mitsuo Kayano, Hiroshi Katayama, Mitsuru Watabe, Junichi Ishii, Tetsuya Ichihashi, Shoji Sasaki
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Patent number: 5947087Abstract: A control device and a control method capable of eliminating a torque variation in changing an air/fuel ratio and establishing a compatibility of promotion in fuel economy with promotion in drivability is provided. The device includes an outer environment detector for detecting an outer environment in running a vehicle, a running environment determining device for predicting a current running environment in accordance with the outer environment, a data storage device for storing data for changing a driving characteristic, a selecting device for selecting the data, a control quantity calculator for calculating a control quantity based on the data, and a control actuator for controlling a control object.Type: GrantFiled: December 11, 1997Date of Patent: September 7, 1999Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Satoshi Kuragaki, Junichi Ishii
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Patent number: 5925087Abstract: A method and apparatus to estimate slopes accurately, as well as to eliminate slope estimation errors, taking error generating conditions into account. The slope on which the vehicle is running is estimated from the vehicle speed and the engine rpm value. The result is entered to the slope estimation unit through a low pass filter, then to the navigation unit. A noise eliminator is provided to the output of the slope estimation unit so that noises can be eliminated, for example, during gear-shifting or for a certain time after the gear shifting is completed by obtaining the "gear shifting" information from the automatic transmission control. The preceding estimated slope value is held during the noise elimination period.Type: GrantFiled: August 27, 1993Date of Patent: July 20, 1999Assignee: Hitachi, Ltd.Inventors: Hiroshi Ohnishi, Hiroshi Katayama, Mitsuo Kayano, Junichi Ishii, Toshimichi Minowa, Michimasa Horiuchi
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Patent number: 5926750Abstract: In accordance with the present invention, a receiver of the type receiving both a signal subjected to FM (Frequency Modulation) and a signal subjected to orthogonal modulation is capable dealing with the two different kinds of signal by use of a single demodulator. This successfully scales down the circuitry of the receiver.Type: GrantFiled: April 9, 1997Date of Patent: July 20, 1999Assignee: NEC CorporationInventor: Junichi Ishii
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Patent number: 5906560Abstract: A power train controller and control method are provided for a passenger car driven by a combustion engine and an automatic gear changing transmission. Control sensors detect a current operating state of the passenger car. Three different modes of operation, including sports mode, economy mode, and comfortable mode are selected by the driver. Depending on the selected mode, the automobile transmission is controlled in different shifting patterns as a function of the sensed vehicle operating conditions.Type: GrantFiled: April 29, 1998Date of Patent: May 25, 1999Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Yoshiyuki Yoshida, Junichi Ishii
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Patent number: 5862458Abstract: In an impedance matching circuit used in a transmitter circuit, an occurrence of a reflection wave in an antenna is suppressed.Type: GrantFiled: April 17, 1996Date of Patent: January 19, 1999Assignee: NEC CorporationInventor: Junichi Ishii