Patents by Inventor Jun Iida

Jun Iida 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).

  • Patent number: 11951261
    Abstract: A nitric oxide administration device 1 includes a first flow path 101 including a first intake port 101a and an oxygen supply port 101b, an oxygen generation unit 100 which is arranged in the first flow path 101 and which generates concentrated oxygen from air introduced via the first intake port 101a, the generated concentrated oxygen being supplied via the oxygen supply port 101b, a second flow path 201 which is branched from the first flow path 101 and which includes an NO supply port 201b, and an NO generation unit 200 which is arranged in the second flow path 201 and which generates NO from gas distributed from the first flow path 101, the generated NO being supplied via the NO supply port 201b.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: April 9, 2024
    Assignee: Teijin Pharma Limited
    Inventors: Rei Tamiya, Naoyuki Iida, Shosaku Motohara, Jun Matsui
  • Publication number: 20240110848
    Abstract: A misfire determination apparatus for an internal combustion engine including a rotational speed detector detecting a rotational speed of an engine and a microprocessor. The microprocessor is configured to perform calculating a misfire parameter having a correlation with a change amount of the rotational speed in a combustion stroke of each of a plurality of cylinders and increasing as an increase amount of the rotational speed is large based on the rotational speed detected by the rotational speed detector, and determining that a single-cylinder misfire has occurred when the misfire parameter is less than a first predetermined value, while determining that the single-cylinder misfire or a multi-cylinder misfire has occurred when the misfire parameter is less than a second predetermined value greater than the first predetermined value.
    Type: Application
    Filed: September 26, 2023
    Publication date: April 4, 2024
    Inventors: Nobukazu Asano, Jun Iida, Satoshi Kozuka, Atsuhiro Miyauchi, Hayato Watanabe
  • Publication number: 20230408374
    Abstract: A misfire determination device, for an internal combustion engine, according to the present invention detects a combustion state parameter of the internal combustion engine, retrieves an extreme value of the combustion state parameter in an extreme value retrieval section from a start timing of a combustion stroke to a predetermined crank angle (step 5), upon retrieval of the extreme value, sets a predetermined crank angle section subsequent to a crank angle corresponding to the extreme value as a misfire determination parameter calculation section (step 6, expression 5), calculates a misfire determination parameter based on the combustion state parameter that has been detected in the misfire determination parameter calculation section (step 6), and determines a misfire based on the misfire determination parameter (steps 7 to 9).
    Type: Application
    Filed: June 15, 2023
    Publication date: December 21, 2023
    Inventors: Satoshi KOZUKA, Jun IIDA, Nobukazu ASANO, Hayato WATANABE, Naoyuki TANAKA, Bumpei NAKAYAMA
  • Publication number: 20230400002
    Abstract: A control apparatus, for an internal combustion engine, detects a rotational speed parameter (time parameter) that represents a rotational speed of the internal combustion engine including a plurality of cylinders, detects a single misfire that is a misfire for every ignition for each of the plurality of cylinders, based on the rotational speed parameter that has been detected in each combustion stroke of the plurality of cylinders (steps 2 to 7 and 9), counts, as a misfire counter value, the number of times that the single misfire has been detected for each of the plurality of cylinders (steps 8 and 10), determines whether the misfire is occurring in the cylinder, based on the misfire counter value (steps 11 to 12), and corrects an ignition timing of the cylinder that has been determined that the misfire is occurring to an advance angle side (steps 25, 26, and 34).
    Type: Application
    Filed: June 1, 2023
    Publication date: December 14, 2023
    Inventors: Hayato WATANABE, Satoshi KOZUKA, Jun IIDA, Nobukazu ASANO
  • Patent number: 9007034
    Abstract: An electric power generation control system for a vehicle, which enables generation of electric power by a generator as much as possible while preventing an electrical component from being overheated by power generation by the generator. The electric power generation control system selectively switches a mode of the generator between first and second modes in which an instruction voltage is higher and not higher than an allowable voltage of a wire harness, respectively. A counter value is counted up in the first mode and down in the second mode. When the counter value has reached a higher limit value, the first mode is inhibited and the power generation mode is set to the second mode. This increase the proportion of an execution time period of the first, and accordingly, when a possibility of overheating the wire harness becomes high, the instruction voltage is lowered.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: April 14, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Jun Iida, Masahiko Asakura, Satoru Sunada, Hiroshi Endo, Kojiro Tsutsumi, Ryuko Komatsu, Nobumasa Toyoshima
  • Patent number: 8670263
    Abstract: A data holding device according to the present invention includes a loop structure portion LOOP for holding data using a plurality of logic gates (NAND3 and NAND4) connected in a loop, a nonvolatile storage portion (NVM) for storing in a nonvolatile manner the data held in the loop structure portion (LOOP) by using the hysteresis characteristics of ferroelectric elements, a circuit separating portion (SEP) for electrically separating the loop structure portion (LOOP) and the nonvolatile storage portion (NVM), and a set/reset controller (SRC) for generating a set signal (SNL) and reset signal (RNL) based on data stored in the nonvolatile storage portion (NVM), wherein the plurality of logic gates are each set and reset to an arbitrary output logic level in accordance with the set signal (SNL) and reset signal (RNL).
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: March 11, 2014
    Assignee: Rohm Co., Ltd.
    Inventors: Hiromitsu Kimura, Jun Iida, Koji Nigoriike, Yoshinobu Ichida
  • Patent number: 8387364
    Abstract: An exhaust gas purifying apparatus for an internal combustion engine having a particulate filter provided in an exhaust system of the engine. Regeneration control is performed of burning particulates accumulated in the particulate filter. An oxygen concentration in exhaust gases flowing into the particulate filter is detected, and a flow rate of oxygen flowing into the particulate filter is calculated according to the detected oxygen concentration. An inflowing oxygen amount is calculated by integrating the oxygen flow rate when performing regeneration control. It is determined that an abnormality has occurred if the inflowing oxygen amount at a time when regeneration control ends is equal to or less than a predetermined amount.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: March 5, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Daisuke Sato, Hidetaka Maki, Eisaku Gosyo, Atsushi Izumiura, Jun Iida
  • Patent number: 8333061
    Abstract: An exhaust gas purifying apparatus for an internal combustion engine, including a particulate filter provided in an exhaust passage of the engine; a pressure difference sensor for detecting a pressure difference between upstream and downstream side pressures of the particulate filter; an upstream side passage, which connects the pressure difference sensor and an upstream side with respect to the particulate filter of the exhaust passage; and a downstream side passage, which connects the pressure difference sensor and a downstream side with respect to the particulate filter of the exhaust passage. An exhaust gas flow rate is calculated according to an operating condition of the engine. A characteristic of change in the pressure difference, which is detected by the pressure difference detector and corresponds to a change in the exhaust gas flow rate, is detected. An abnormality of the downstream side passage is determined based on the characteristic of change in the pressure difference.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 18, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Daisuke Sato, Hidetaka Maki, Jun Iida, Eisaku Gosho, Hiroaki Nishino
  • Publication number: 20120176085
    Abstract: A remote wireless driving charger includes: a transmitter; a primary side resonance capacitor connected to the transmitter; a primary coil which is connected to the primary side resonance capacitor and is tuned to be resonant with the primary side resonance capacitor in a predetermined power carrier frequency band; a secondary coil embedded in a portable device; and a secondary side resonance capacitor which is connected to the secondary coil and is tuned to be resonant with the secondary coil in the predetermined power carrier frequency band. Radioactive inductance components as micro loops of the primary coil and the secondary coil are cancelled out by the non-radioactive primary side resonance capacitor and secondary side resonance capacitor through an electromagnetic coupling between the primary coil and the secondary coil, and the portable device is remotely and wirelessly charged.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 12, 2012
    Applicant: ROHM CO., LTD.
    Inventors: Jun IIDA, Kimitake UTSUNOMIYA
  • Publication number: 20120170323
    Abstract: A charging AC adaptor includes: a first diode bridge connected to an AC terminal; a chopper controller connected to the first diode bridge; an insulating air core transformer connected to the chopper controller; a second diode bridge connected to a secondary side of the insulating air core transformer; a DC output terminal connected to the second diode bridge; and a common connection cable connected to the DC output terminal. The charging AC adaptor is connectable to a portable device via the common connection cable.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 5, 2012
    Applicant: ROHM CO., LTD.
    Inventors: Jun IIDA, Hiroyuki HATANO, Kimitake UTSUNOMIYA
  • Patent number: 8205435
    Abstract: A deterioration determination device for a catalyst, which is capable of accurately determining deterioration of a catalyst without being influenced by the response delays of outputs from the upstream and downstream oxygen concentration parameter sensors. The deterioration determination device includes upstream and downstream LAF sensors for detecting respective upstream and downstream oxygen concentration parameters. After switching exhaust gases flowing through the former parameter sensor into the catalyst to a reduction atmosphere, an upstream oxygen concentration parameter detected for comparison when a predetermined time period elapses after it exceeds a predetermined value is compared with a downstream oxygen concentration parameter detected for comparison when the predetermined time period elapses after it exceeds the predetermined value. Based results of the comparison, deterioration of the catalyst is determined.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: June 26, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventor: Jun Iida
  • Patent number: 8186147
    Abstract: A catalyst deterioration-determining device capable of properly performing deterioration determination, while compensating for differences in output characteristics of oxygen concentration parameter sensors disposed upstream and downstream of the catalyst, respectively. After exhaust gases flowing into the catalyst having an oxygen storage capability are switched from oxidation atmosphere to reduction atmosphere, first and second equivalent ratios indicative of oxygen concentrations, detected by first and second LAF sensors disposed upstream and downstream of the catalyst, are integrated to calculate respective first and second reducing agent amount integrated values. The integrated values are corrected by dividing them by respective average values of the first and second equivalent ratios calculated after the lapse of a predetermined time period, such that differences in gains of the first and second LAF sensors are compensated for.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: May 29, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventor: Jun Iida
  • Patent number: 8151552
    Abstract: A deterioration determining device for an exhaust emission reduction device which is capable of improving the accuracy of determination of deterioration of a catalyst as a target, when another catalyst is disposed upstream of the target. The deterioration determining device for determining deterioration of a downstream one of two catalysts includes an ECU. After switching the air-fuel ratio from a learn value to a rich value, the ECU calculates an upstream oxygen storage capability using respective equivalent ratios detected by two LAF sensors, calculates a correction coefficient according to the value of the capability, calculates a basic value of a downstream oxygen storage capability using equivalent ratios detected by two LAF sensors, and multiples the basic value by the correction coefficient to calculate the downstream oxygen storage capability. When this is smaller than a predetermined value, the downstream catalyst is determined to be deteriorated.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: April 10, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventor: Jun Iida
  • Publication number: 20110199810
    Abstract: A data holding device according to the present invention includes a loop structure portion LOOP for holding data using a plurality of logic gates (NAND3 and NAND4) connected in a loop, a nonvolatile storage portion (NVM) for storing in a nonvolatile manner the data held in the loop structure portion (LOOP) by using the hysteresis characteristics of ferroelectric elements, a circuit separating portion (SEP) for electrically separating the loop structure portion (LOOP) and the nonvolatile storage portion (NVM), and a set/reset controller (SRC) for generating a set signal (SNL) and reset signal (RNL) based on data stored in the nonvolatile storage portion (NVM), wherein the plurality of logic gates are each set and reset to an arbitrary output logic level in accordance with the set signal (SNL) and reset signal (RNL).
    Type: Application
    Filed: February 11, 2011
    Publication date: August 18, 2011
    Applicant: Rohm Co., Ltd.
    Inventors: Hiromitsu Kimura, Jun Iida, Koji Nigoriike, Yoshinobu Ichida
  • Patent number: 7694508
    Abstract: Air-fuel ratio control system for an engine having a catalyst purifying exhaust gases, first oxygen sensor disposed upstream of the catalyst, and second oxygen sensor disposed downstream. Intake air flow rate is detected. An amount of oxygen flowing into the catalyst is calculated using oxygen concentration detected by the first sensor and the detected intake air flow rate. The air-fuel ratio is alternately controlled to lean and rich by comparison between the calculated oxygen amount and target values. A rich oxygen amount and a lean oxygen amount are calculated. A correction amount for correcting the first sensor output is calculated based on the rich oxygen amount, the lean oxygen amount, and an accumulated value of the detected intake air flow rate. The oxygen concentration corrected with the correction amount is used for calculating the inflowing oxygen amount, the rich operation oxygen amount, and the lean operation oxygen amount.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: April 13, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Jun Iida, Yukio Suehiro, Hidetaka Maki
  • Patent number: 7677027
    Abstract: A deterioration detecting apparatus for a purifying catalyst in an exhaust system of an engine. A first oxygen concentration sensor is disposed upstream of the catalyst. A second oxygen concentration sensor is disposed downstream. An amount of oxygen flowing into the catalyst is calculated from the oxygen concentration detected by the first sensor and the detected intake air flow rate. A control command value of an air-fuel ratio is alternately switched between a first value corresponding to a lean air-fuel ratio and a second value corresponding to a rich air-fuel ratio according to a result of comparison between the calculated inflowing oxygen amount and target values. Excessive inflowing oxygen amounts are calculated. The target values are corrected with the excessive inflowing oxygen amount. A deterioration degree of the catalyst is detected based on an output of the second sensor when performing the switching of the control command value using the corrected target values.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: March 16, 2010
    Assignee: Honda Motor Co., Ltd.
    Inventors: Jun Iida, Hidetaka Maki, Yukio Suehiro
  • Publication number: 20100031634
    Abstract: A deterioration determination device for an exhaust emission reduction device which is capable of accurately and rapidly determining deterioration of a NOx purifying catalyst. The deterioration determination device for the exhaust emission reduction device for determining deterioration of the NOx purifying catalyst includes an ECU. The ECU executes high NOx concentration control in deterioration determination, calculates a NOx supply amount based on upstream NOx concentration detected during execution of the high NOx concentration control, calculates a NOx slip amount based on downstream NOx concentration detected during execution of the high NOx concentration control, and determines the NOx purifying catalyst to be deteriorated when the condition of the NOx slip amount >a reference value is satisfied, in a case where the NOx supply amount> a reference value holds.
    Type: Application
    Filed: July 13, 2009
    Publication date: February 11, 2010
    Applicant: HONDA MOTOR CO. LTD.
    Inventors: Jun IIDA, Kojiro Tsutsumi, Hidetaka Maki
  • Publication number: 20100031632
    Abstract: A catalyst deterioration determination device capable of determining whether or not fuel is high-sulfur fuel containing much sulfur content, and properly determining whether a catalyst is deteriorated while suppressing the frequency of execution of control for recovering the catalyst from the poisoned state to the minimum. The device determines whether or not a catalyst which purifies exhaust gases exhausted from an internal combustion engine is deteriorated based on the capacity of the catalyst for purifying exhaust gases. If it is determined that the catalyst is deteriorated, first sulfur elimination control is executed for eliminating sulfur content accumulated in the catalyst. Further, when the first sulfur elimination control is terminated, the deterioration determination of the catalyst is executed. Then, when it is determined by the deterioration determination that the catalyst is not deteriorated, it is determined that the fuel is high-sulfur fuel containing lots of sulfur content.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 11, 2010
    Applicant: HONDA MOTOR CO., LTD
    Inventors: Jun IIDA, Daisuke Sato, Hirofumi Hara
  • Publication number: 20090313974
    Abstract: A catalyst deterioration-determining device capable of properly performing deterioration determination, while compensating for differences in output characteristics of oxygen concentration parameter sensors disposed upstream and downstream of the catalyst, respectively. After exhaust gases flowing into the catalyst having an oxygen storage capability are switched from oxidation atmosphere to reduction atmosphere, first and second equivalent ratios indicative of oxygen concentrations, detected by first and second LAF sensors disposed upstream and downstream of the catalyst, are integrated to calculate respective first and second reducing agent amount integrated values. The integrated values are corrected by dividing them by respective average values of the first and second equivalent ratios calculated after the lapse of a predetermined time period, such that differences in gains of the first and second LAF sensors are compensated for.
    Type: Application
    Filed: June 11, 2009
    Publication date: December 24, 2009
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Jun IIDA
  • Publication number: 20090313970
    Abstract: A deterioration determining device for an exhaust emission reduction device which is capable of improving the accuracy of determination of deterioration of a catalyst as a target, when another catalyst is disposed upstream of the target. The deterioration determining device for determining deterioration of a downstream one of two catalysts includes an ECU. After switching the air-fuel ratio from a learn value to a rich value, the ECU calculates an upstream oxygen storage capability using respective equivalent ratios detected by two LAF sensors, calculates a correction coefficient according to the value of the capability, calculates a basic value of a downstream oxygen storage capability using equivalent ratios detected by two LAF sensors, and multiples the basic value by the correction coefficient to calculate the downstream oxygen storage capability. When this is smaller than a predetermined value, the downstream catalyst is determined to be deteriorated.
    Type: Application
    Filed: June 12, 2009
    Publication date: December 24, 2009
    Applicant: HONDA MOTOR CO., LTD.
    Inventor: Jun IIDA