Patents by Inventor Yoshihiro Okada

Yoshihiro Okada 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).

  • Control unit for turbocharged internal combustion engine
    Patent number: 8495865
    Abstract: A control unit for a turbocharged internal combustion engine is provided. The control unit includes a first exhaust valve that opens/closes a first exhaust passage that is communicated with a turbine; a second exhaust valve that opens/closes a second exhaust passage that bypasses the turbine; and a closing timing of the second exhaust valve that is controlled so that an opening period of the second exhaust valve overlaps with an opening period of an intake valve under high engine load. The opening characteristic of the second exhaust valve and a fuel injection amount are controlled so that the air-fuel ratio of gas that is filled in a cylinder approximates an output air-fuel ratio and the air-fuel ratio of gas flowing into a three-way catalyst that is arranged in a post-junction exhaust passage approximates a theoretical air-fuel ratio under high engine load.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: July 30, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yoshihiro Okada
  • Electromagnetic wave detecting element
    Patent number: 8436442
    Abstract: The present invention is to provide an electromagnetic wave detecting element that can prevent a decrease in light utilization efficiency at sensor portions. The sensor portions are provided so as to correspond to respective intersection portions of scan lines and signal lines, and have semiconductor layer that generate charges due to electromagnetic waves being irradiated, and at whose electromagnetic wave irradiation surface sides upper electrodes are formed, and at whose electromagnetic wave non-irradiation surface sides lower electrodes are formed. Bias voltage is supplied to the respective upper electrodes via respective contact holes by a common electrode line that is formed further toward an electromagnetic wave downstream side than the semiconductor layer.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: May 7, 2013
    Assignee: FUJIFILM Corporation
    Inventor: Yoshihiro Okada
  • Active matrix substrate and display unit provided with it
    Patent number: 8405808
    Abstract: An active matrix substrate includes a substrate; scanning lines formed on the substrate; an insulating film covering the scanning lines; signal lines intersecting the scanning lines via the insulating film; switching elements formed on the substrate, each operating in response to a signal which is applied to the corresponding scanning line; and pixel electrodes each capable of being electrically connected to the corresponding signal line via the switching elements. The insulating film is a multilayer insulating film including a first insulating layer and a second insulating layer. The first insulating layer is formed of an insulating material containing an organic component, and the multilayer insulating film has a low-stack region in at least a portion of a region overlapping each switching element, the first insulating layer not being formed in the low-stack region.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 26, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Wataru Nakamura, Atsushi Ban, Shoji Okazaki, Hiromitsu Katsui, Yoshihiro Okada
  • Information recording/reproduction device and information recording medium
    Patent number: 8369689
    Abstract: There is provided an information recording medium that reduces operation of shifting information backward or putting information forward closer together upon recording/deleting/dividing information to facilitate processes of recording/deleting/dividing information. An information recording medium records Programs 1 composed of image data, etc., UPGR 3 that refers to at least a part of the Programs 1, PGRG 5 that refers to the UPGR 3, a PGRM that collectively records the UPGR 3 and reference information thereof, and a PGRGM that collectively records the PGRG 5 and reference information thereof. When recording the UPGR 3, the information recording medium refers to the reference information contained in the PGRM, and when invalid reference information or reference information giving no reference to any UPGR 3 is present, records the UPGR 3 using the reference information.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: February 5, 2013
    Assignees: Sharp Kabushiki Kaisha, Pioneer Corporation, JVC Kenwood Corporation, Hitachi, Ltd, Sanyo Electric Co., Ltd.
    Inventors: Yukitaka Shimizu, Yoshihiro Okada, Kenichiro Tada, Kyoichi Terao, Yasuaki Yamada, Junji Shiokawa, Yuichi Kanai
  • RADIATION DETECTOR, RADIOGRAPHIC IMAGING DEVICE AND RADIOGRAPHIC IMAGING SYSTEM
    Publication number: 20130009069
    Abstract: The present invention provides a radiation detector, a radiographic imaging device, and a radiographic image system that may be easily tested and may precisely detect radiation. Namely, pixels each includes a sensor portion A and a sensor portion B. In imaging pixels, the sensor portion A and the sensor portion B are connected by a connection line, and charges generated in the sensor portion A and in the sensor portion B are read by a TFT switch and output to a signal line. In radiation detection pixels, charges generated in the sensor portion A are read by a TFT switch and output to a signal line. Further, in the radiation detection pixels, the sensor portion B and the signal line are directly connected by a connection line, and the charges generated in the sensor portion B are output to the signal line as they arise.
    Type: Application
    Filed: June 22, 2012
    Publication date: January 10, 2013
    Applicant: FUJIFILM CORPORATION
    Inventor: Yoshihiro OKADA
  • RADIATION DETECTOR, RADIOGRAPHIC IMAGING DEVICE AND RADIOGRAPHIC IMAGING SYSTEM
    Publication number: 20130009065
    Abstract: The present invention provides a radiation detector, a radiographic imaging device and a radiographic imaging system that may detect radiation with high precision. Namely, in the radiation detector, radiation detection pixels include detection TFTs, and light that has been converted from radiation is illuminated directly from a scintillator onto the detection TFTs. Accordingly, leak current occurs in semiconductor active layers of the detection TFTs corresponding to the amount (intensity) of the illuminated light, and the leak current flows in to signal lines. Accordingly, radiation may be detected by monitoring the leak current, and enables timings, such as the start of irradiation of radiation, to be detected.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 10, 2013
    Applicant: FUJIFILM CORPORATION
    Inventor: Yoshihiro OKADA
  • RADIOGRAPHIC IMAGING DEVICE, RADIOGRAPHIC IMAGING SYSTEM, COMPUTER READABLE MEDIUM STORING DISCONNECTION DETECTION PROGRAM, AND DISCONNECTION DETECTION METHOD
    Publication number: 20130003926
    Abstract: The present invention provides a radiographic imaging device, a radiographic imaging system, a computer readable medium storing disconnection detection program and a disconnection detection method that may detect disconnected specific signal lines even when the charge amount output from a single pixel is small. Namely, a bias voltage is applied to pixels, and offset charges due to leak current of sensor portions (photodiodes) are accumulated. The gates of pixel TFT switches are switched ON in sequence, and electric signals are output corresponding to the accumulated offset charges. A control section detects a cumulative value of the offset charge amount based on the electric signals. The detected cumulative value is then compared to a predetermined disconnection detection threshold value and disconnected signal lines are detected when the cumulative value is less than the threshold value.
    Type: Application
    Filed: May 31, 2012
    Publication date: January 3, 2013
    Applicant: FUJIFILM CORPORATION
    Inventor: Yoshihiro OKADA
  • RADIATION DETECTOR, RADIOGRAPHIC IMAGING DEVICE, RADIOGRAPHIC IMAGING SYSTEM AND LINE CAPACITANCE ADJUSTING METHOD
    Publication number: 20130001427
    Abstract: The present invention provides a radiation detector, a radiographic imaging device, a radiographic imaging system and a line capacitance adjusting method that may suppress image irregularities from occurring in the obtained radiographic images. Namely, the line capacitance difference between each of plural signal lines is reduced by adjusting elements (capacitors) connected to at least one of the plural signal lines.
    Type: Application
    Filed: May 31, 2012
    Publication date: January 3, 2013
    Inventor: Yoshihiro OKADA
  • Multi-primary color display device
    Patent number: 8339344
    Abstract: A display device which exhibits functional effects in which color separation between sub-pixels constituting a pixel is hardly recognized and white line display is easily recognized as one line, in enlargement of the color reproduction range in image display using multi-primary colors, and thereby improves display quality, and provides a liquid crystal display device including such a display device. The display device displays an image constituted by pixels each including sub-pixels of four or more colors, wherein the pixels constituting the display device mainly include a pixel arranging a sub-pixel of a color having the highest brightness value in a central region of the pixel.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: December 25, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshihiro Okada, Kazunari Tomizawa, Kenji Nakamura, Shoji Okazaki
  • Display apparatus, display method, display monitor, and television receiver
    Patent number: 8339423
    Abstract: An image display period of a first sub frame of an N-th frame is arranged to partly overlap the image display period of the second sub frame of the N-th frame and the image display period of a second sub frame of the (N?1)-th frame. Grayscale display voltages with which pixels that are horizontally or vertically neighbored are charged are arranged to have inverse polarities, and the polarity of the grayscale display voltage charging each pixel is reversed in each frame. Furthermore, neighboring data signal lines are short-circuited each time the polarity of the grayscale display voltage output to each data signal line is reversed.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: December 25, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazunari Tomizawa, Yoshihiro Okada
  • RADIOGRAPHIC IMAGING DEVICE, RADIOGRAPHIC IMAGING SYSTEM, COMPUTER READABLE MEDIUM STORING PROGRAM FOR CONTROLLING RADIOGRAPHIC IMAGING DEVICE, AND METHOD FOR CONTROLLING RADIOGRAPHIC IMAGING DEVICE
    Publication number: 20120288061
    Abstract: The present invention provides a radiographic imaging device, radiographic imaging system, a program for controlling the radiographic imaging device, and a method for controlling the radiographic imaging device that may accurately detect start of irradiation of radiation even noises are generated by interference or the like. When radiation is irradiated, electric signals outputted from radiation detection pixels in charge accumulation period are detected by signal detection circuit during detection period. Control section determines whether time variation of the electric signals feature pre-specified characteristics of noise. If not, the start of the irradiation of radiation has been properly detected, the charge accumulation period continues, and radiographic image is imaged.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 15, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Yoshihiro OKADA
  • INTERNAL COMBUSTION ENGINE
    Publication number: 20120279481
    Abstract: The present invention has an object to provide an internal combustion engine in which abnormal combustion accompanying inflow of oil hardly occurs. For this purpose, in one mode of the present invention, the internal combustion engine includes a plurality of cylinders disposed along a flow of cooling water, and a surge tank having a plurality of air outlet ports connecting to the respective cylinders, wherein the surge tank is formed so that relatively much oil accumulates in a vicinity of an air outlet port connecting to a cylinder which is located at an upstream side of the flow of the cooling water, and accumulation of the oil is relatively small in a vicinity of an air outlet port connecting to a cylinder which is located at a downstream side of the flow of the cooling water.
    Type: Application
    Filed: February 10, 2010
    Publication date: November 8, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yoshihiro Okada
  • Active matrix substrate, method of making the substrate, and display device
    Patent number: 8304297
    Abstract: An active matrix substrate includes base substrate, gate lines, data lines, thin-film transistors and pixel electrodes. The gate lines are formed on the base substrate. The data lines are formed over the gate lines. Each of the data lines crosses all of the gate lines with an insulating film interposed therebetween. The thin-film transistors are formed over the base substrate. Each of the thin-film transistors is associated with one of the gate lines and operates responsive to a signal on the associated gate line. Each of the pixel electrodes is associated with one of the data lines and one of the thin-film transistors and is electrically connectable to the associated data line by way of the associated thin-film transistor. Each of the pixel electrodes and the associated thin-film transistor are connected together by way of a conductive member.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: November 6, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshihiro Okada, Yuichi Saito, Shinya Yamakawa, Atsushi Ban, Masaya Okamoto, Hiroyuki Ohgami
  • Image signal readout method and apparatus, and image signal readout system
    Patent number: 8288732
    Abstract: An image signal readout method for reading out an image signal from an image detector including multitudes of pixels, each having a TFT switch, disposed two-dimensionally, in which a leak level flowing out to each of the data lines are detected with a signal for switching OFF the TFT switches being applied to each of the scanning lines prior to reading out the image signal.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: October 16, 2012
    Assignee: FUJIFILM Corporation
    Inventor: Yoshihiro Okada
  • Detection element
    Patent number: 8274057
    Abstract: The present invention provides a detection element that can suppress generation of a residual image. A sensor portion includes a semiconductor layer, an upper electrode and a lower electrode. The semiconductor layer generates charges due to light being illuminated thereto. The upper electrode applies a bias voltage to the semiconductor layer. The lower electrode collects charges that have been generated at the semiconductor layer. The charges that have been generated at the semiconductor layer are collected and accumulated by the lower electrode. In the detection element, a saturation prevention circuit (diode and second bias line) is provided through which the accumulated charges flow-out when the charges that have been generated at the semiconductor layer are collected and a voltage level of the lower electrode becomes a saturation prevention voltage level Vs.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: September 25, 2012
    Assignee: FUJIFILM Corporation
    Inventor: Yoshihiro Okada
  • Electromagnetic wave detection element
    Patent number: 8274591
    Abstract: The present invention provides an electromagnetic wave detection element that can raise the speed of image read-out. Scan lines are each disposed to plural pixel lines for each of the pixel lines in a row direction of plural pixels disposed in a matrix array, and switches each TFT switch provided to respective pixels in the plural pixel lines by the respective scan lines. Plural signal lines are each disposed to each of the pixel lines in the column direction of the matrix array. In each of the pixel lines in the column direction, the respective signal line is connected to a different TFT switch from the TFT switches that are connected to the same respective scan line, and the charge accumulated in storage capacitors is read out through each of the signal lines according to the state of the TFT switches.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: September 25, 2012
    Assignee: FUJIFILM Corporation
    Inventor: Yoshihiro Okada
  • RADIOGRAPHIC IMAGING DEVICE, COMPUTER-READABLE MEDIUM STORING PROGRAM FOR CONTROLLING RADIOGRAPHIC IMAGING DEVICE, AND METHOD FOR CONTROLLING RADIOGRAPHIC IMAGING DEVICE
    Publication number: 20120193546
    Abstract: The present invention provides a radiographic imaging device, a computer-readable medium storing a program for controlling a radiographic imaging device, and a method for controlling a radiographic imaging device, that may suppress feed-through without narrowing a dynamic range. Namely, a control section outputs control signals via scan lines to gates of TFT switches to perform control in such a way that the timing when a TFT switch n?1 of a pixel n?1 is switched to an OFF state and the timing when a TFT switch n of a pixel n is switched to an ON state become simultaneous timings, or timings that can be regarded substantially simultaneous even though the time period in which the TFT switch n is in an ON state and part of the time period in which the TFT switch n?1 is in an ON state overlap.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 2, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Yoshihiro OKADA
  • ELECTROMAGNETIC WAVE DETECTING ELEMENT
    Publication number: 20120187464
    Abstract: The present invention is to provide an electromagnetic wave detecting element that can prevent a decrease in light utilization efficiency at sensor portions. The sensor portions are provided so as to correspond to respective intersection portions of scan lines and signal lines, and have semiconductor layer that generate charges due to electromagnetic waves being irradiated, and at whose electromagnetic wave irradiation surface sides upper electrodes are formed, and at whose electromagnetic wave non-irradiation surface sides lower electrodes are formed. Bias voltage is supplied to the respective upper electrodes via respective contact holes by a common electrode line that is formed further toward an electromagnetic wave downstream side than the semiconductor layer.
    Type: Application
    Filed: April 5, 2012
    Publication date: July 26, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Yoshihiro Okada
  • RADIOGRAPHIC IMAGING DEVICE, COMPUTER READABLE MEDIUM STORING RADIOGRAPHIC IMAGING PROGRAM, AND RADIOGRAPHIC IMAGING METHOD
    Publication number: 20120187303
    Abstract: The present invention provides a radiographic imaging device, a computer readable storage medium storing a radiographic imaging program, and a radiographic imaging method, that may appropriately reduce remaining charges of a photoelectric conversion element. Namely, when radiation is irradiated, an amplifier is switched to a sampling state, TFT switches are switched to an ON state, and charges that have been generated due to the radiation are read out for generating image data of a radiographic image. After an S/H switch has been turned ON for a specific duration and charges has been output to an ADC, the TFT switches are again switched to the ON state in a period outside the CA sampling period, and charges read out from sensor sections by the TFT switch are read-discarded without being employed for the generation of image data.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 26, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Yoshihiro OKADA
  • RADIOGRAPHIC IMAGING APPARATUS, COMPUTER READABLE MEDIUM STORING RADIOGRAPHIC IMAGING PROGRAM, AND RADIOGRAPHIC IMAGING METHOD
    Publication number: 20120181441
    Abstract: The present invention provides a radiographic imaging apparatus including: a plurality of pixels arrayed in a matrix, each of the pixels comprising: a photoelectric conversion element that generates and accumulates charges according to irradiation of radiation; a read-out switching element that read out the accumulated charges in response to a first control signal, and that outputs an electrical signal corresponding to the charges; and a shorting element that shorts the photoelectric conversion element in response to a second control signal.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 19, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Yoshihiro OKADA