Patents by Inventor Shigetoshi Sugawa

Shigetoshi Sugawa 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).

  • Publication number: 20110209567
    Abstract: There is provided a wafer on which a plurality of electronic devices and circuits under test are to be formed, where each circuit under test includes a plurality of transistors under measurement provided in electrically parallel, a selecting section which sequentially selects the respective transistors under measurement, and an output section which sequentially outputs the source voltages of the transistors under measurement sequentially selected by the selecting section.
    Type: Application
    Filed: May 5, 2011
    Publication date: September 1, 2011
    Applicant: NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY
    Inventors: SHIGETOSHI SUGAWA, AKINOBU TERAMOTO
  • Patent number: 7973835
    Abstract: This invention is to provide a solid-state image pickup apparatus including a photoelectric conversion unit (PD), transfer switch (MTX) for transferring signal charges from the photoelectric conversion unit, capacitance for holding the transferred signal charges, and amplification transistor (MSF) for outputting a signal corresponding to the signal charges held by the capacitance. The amplification transistor includes a capacitance unit (CFD) having the first capacitance value and an additive capacitance unit (Cox) for adding a capacitance to the capacitance unit to increase the first capacitance value and obtain the second capacitance value. A signal read-out from the amplification transistor has a first read-out mode in which a signal is read out while keeping the signal charges held by the capacitance unit and additive capacitance unit, and a second read-out mode in which a signal is read out while keeping the signal charges held by the capacitance unit.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: July 5, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhito Sakurai, Shigetoshi Sugawa, Hideyuki Arai, Isamu Ueno, Katsuhisa Ogawa, Toru Koizumi, Tetsunobu Kochi, Hiroki Hiyama
  • Publication number: 20110157440
    Abstract: To control the potential distribution generated in a well at the time of amplification and reduce a shading in a solid-state imaging device of amplification type, the amplification type solid-state imaging device of the present invention comprises a plurality of picture elements each including photoelectric conversion elements formed in a second conductivity type common well inside a first conductivity type substrate, wherein a plurality of well contacts are disposed inside a picture element array area.
    Type: Application
    Filed: March 11, 2011
    Publication date: June 30, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomoya Yoneda, Shigetoshi Sugawa, Toru Koizumi, Tetsunobu Kochi
  • Patent number: 7965097
    Abstract: There is provided a wafer on which a plurality of electronic devices and circuits under test are to be formed, where each circuit under test includes a plurality of transistors under measurement provided in electrically parallel, a selecting section which sequentially selects the respective transistors under measurement, and an output section which sequentially outputs the source voltages of the transistors under measurement sequentially selected by the selecting section.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: June 21, 2011
    Assignee: National University Corporation Tohoku University
    Inventors: Shigetoshi Sugawa, Akinobu Teramoto
  • Publication number: 20110110052
    Abstract: A multilayer wiring board 100 comprises a first wiring region 101 where wirings 103a and insulating layers 104a and 104b are alternately laminated, and a second wiring region 102 where a thickness H2 of an insulating layer 104 is twice or more a thickness H1 of the insulating layer in the first wiring region 101 and a width W2 of a wiring 103b is twice or more a width W1 of the wiring in the first wiring region 101. The first wiring region 101 and the second wiring region 102 are integrally formed on the same board.
    Type: Application
    Filed: May 22, 2009
    Publication date: May 12, 2011
    Inventors: Tadahiro Ohmi, Shigetoshi Sugawa, Hiroshi Imai, Akinobu Teramoto
  • Patent number: 7936487
    Abstract: To control the potential distribution generated in a well at the time of amplification and reduce a shading in a solid-state imaging device of amplification type, the amplification type solid-state imaging device of the present invention comprises a plurality of picture elements each including photoelectric conversion elements formed in a second conductivity type common well inside a first conductivity type substrate, wherein a plurality of well contacts are disposed inside a picture element array area.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: May 3, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoya Yoneda, Shigetoshi Sugawa, Toru Koizumi, Tetsunobu Kochi
  • Publication number: 20110084197
    Abstract: A pixel output line is provided for each of the pixels two-dimensionally arrayed in a pixel area. The pixel output lines are extended to a memory area, and a memory unit is connected to each of those lines. The memory unit includes a writing-side transistor, a reading-side transistor and a plurality of memory sections for holding signals for 104 image frames. A photocharge storage operation is simultaneously performed at all the pixels, and the thereby produced signals are outputted to the pixel output lines. In the memory unit, with the writing-side transistor in the ON state, the sampling transistor of a different memory section is sequentially turned on for each exposure cycle so as to sequentially hold a signal in the capacitor of each memory section. After a burst imaging operation is completed, all the pixel signals are sequentially read. Unlike CCDs, the present device does not simultaneously drive all gate loads, so that it can be driven at high speeds with low power consumption.
    Type: Application
    Filed: June 10, 2009
    Publication date: April 14, 2011
    Applicants: TOHOKU UNIVERSITY, SHIMADZU CORPORATION
    Inventors: Shigetoshi Sugawa, Yasushi Kondo, Hideki Tominaga
  • Publication number: 20110085066
    Abstract: A burst reading memory section (200) and continuous reading memory section (210) are independently provided for each of the two-dimensionally arrayed pixels (10). The burst reading memory section (200) has capacitors (25001-25104) capable of holding a plurality of signals. The continuous reading memory section (210) has only one capacitor 213. Signal output lines for the two memory sections are separately provided. When a signal produced by photoelectric conversion at the pixel (10) is outputted on a pixel output line (14), the signal can be simultaneously written in the capacitors at both memory sections (200, 201), after which the signals can be separately extracted to the outside at different timings. Therefore, a series of images taken at extremely short intervals of time during a short period of time can be obtained at an arbitrary timing without impeding a continuous image-acquiring operation at a low frame rate.
    Type: Application
    Filed: June 10, 2009
    Publication date: April 14, 2011
    Applicants: TOHOKU UNIVERSITY, SHIMADZU CORPORATION
    Inventors: Shigetoshi Sugawa, Yasushi Kondo, Hideki Tominaga
  • Publication number: 20110069358
    Abstract: To control the potential distribution generated in a well at the time of amplification and reduce a shading in a solid-state imaging device of amplification type, the amplification type solid-state imaging device of the present invention comprises a plurality of picture elements each including photoelectric conversion elements formed in a second conductivity type common well inside a first conductivity type substrate, wherein a plurality of well contacts are disposed inside a picture element array area.
    Type: Application
    Filed: December 2, 2010
    Publication date: March 24, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomoya Yoneda, Shigetoshi Sugawa, Toru Koizumi, Tetsunobu Kochi
  • Publication number: 20110018577
    Abstract: There is provided a wafer on which a plurality of electronic devices and circuits under test are to be formed, where each circuit under test includes a plurality of transistors under measurement provided in electrically parallel, a selecting section which sequentially selects the respective transistors under measurement, and an output section which sequentially outputs the source voltages of the transistors under measurement sequentially selected by the selecting section.
    Type: Application
    Filed: October 7, 2010
    Publication date: January 27, 2011
    Applicant: NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY
    Inventors: SHIGETOSHI SUGAWA, AKINOBU TERAMOTO
  • Patent number: 7863925
    Abstract: There is provided a wafer on which a plurality of electronic devices and circuits under test are to be formed, where each circuit under test includes a plurality of transistors under measurement provided in electrically parallel, a selecting section which sequentially selects the respective transistors under measurement, and an output section which sequentially outputs the source voltages of the transistors under measurement sequentially selected by the selecting section.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: January 4, 2011
    Assignee: National University Corporation Tohoku University
    Inventors: Shigetoshi Sugawa, Akinobu Teramoto
  • Patent number: 7864384
    Abstract: To control the potential distribution generated in a well at the time of amplification and reduce a shading in a solid-state imaging device of amplification type, the amplification type solid-state imaging device of the present invention comprises a plurality of picture elements each including photoelectric conversion elements formed in a second conductivity type common well inside a first conductivity type substrate, wherein a plurality of well contacts are disposed inside a picture element array area.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: January 4, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoya Yoneda, Shigetoshi Sugawa, Toru Koizumi, Tetsunobu Kochi
  • Publication number: 20100308839
    Abstract: An electronic device that includes an actual operation circuit that operates during an actual operation of the electronic device, a second test circuit and a third test circuit that operate during a test of the electronic device, and a power supply section. The power supply section, during the actual operation of the electronic device, does not apply a power supply voltage to the second test circuit and applies power supply voltages to the actual operation circuit and the third test circuit. The power supply section, to obtain identification of the electronic device, applies a power supply voltage to the second test circuit.
    Type: Application
    Filed: August 18, 2010
    Publication date: December 9, 2010
    Applicants: NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY, ADVANTEST CORPORATION
    Inventors: Toshiyuki Okayasu, Shigetoshi Sugawa, Akinobu Teramoto
  • Patent number: 7848828
    Abstract: Provided is a method for managing manufacturing apparatuses used in a managed production line including a plurality of manufacturing processes for manufacturing an electronic device, each of the apparatuses being used in one or more of the processes. The method includes acquiring a property of a reference device manufactured in a predetermined reference production line including the manufacturing processes to be performed, performing at least one of the manufacturing processes in the managed production line, performing the other manufacturing processes in the reference production line, and manufacturing a comparison device. The method further includes measuring a property of the comparison device, comparing the measured properties of the reference and the comparison devices, and judging whether a manufacturing apparatus used in the at least one manufacturing process in the managed production line is defective or not, based on a property difference between the reference and the comparison devices.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: December 7, 2010
    Assignees: National University Corporation Tohoku University, Advantest Corporation
    Inventors: Toshiyuki Okayasu, Shigetoshi Sugawa, Akinobu Teramoto
  • Patent number: 7820467
    Abstract: A solid-state imaging device, a line sensor and an optical sensor for enhancing a wide dynamic range while keeping high sensitivity with a high S/N ratio, and a method of operating a solid-state imaging device for enhancing a wide dynamic range while keeping high sensitivity with a high S/N ratio are provided. The solid-state imaging device comprises an integrated array of a plurality of pixels, each of which comprises a photodiode PD for receiving light and generating photoelectric charges, a transfer transistor Tr1 for transferring the photoelectric charges, and a storage capacitor element C connected to the photodiode PD at least through the transfer transistor Tr1 for accumulating, at least through the transfer transistor Tr1, the photoelectric charge overflowing from the photodiode PD during accumulating operation.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: October 26, 2010
    Assignee: National University Corporation Tohoku University
    Inventor: Shigetoshi Sugawa
  • Patent number: 7821560
    Abstract: In an optical device such as an optical sensor or a solid-state imaging device having a photodiode for receiving light and producing photocharges and a transfer transistor (or an overflow gate) for transferring the photocharge, it is configured that photocharges overflowing from the photo diode in storage operation are stored into a plurality of storage capacitance elements through the transfer transistor or the overflow gate, thereby obtaining the optical device adapted to maintain a high sensitivity and a high S/N ratio and having a wide dynamic range.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: October 26, 2010
    Assignee: Tohoku Universityu
    Inventors: Shigetoshi Sugawa, Nana Akahane
  • Patent number: 7812595
    Abstract: There is provided a device identifying method for identifying an electronic device including therein an actual operation circuit and a test circuit having a plurality of test elements provided therein, where the actual operation circuit operates during an actual operation of the electronic device and the test circuit operates during a test of the electronic device.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: October 12, 2010
    Assignees: National University Corporation Tohoku University, Advantest Corporation
    Inventors: Toshiyuki Okayasu, Shigetoshi Sugawa, Akinobu Teramoto
  • Patent number: 7800673
    Abstract: A solid-state imaging device and an optical sensor, which can enhance a wide dynamic range while keeping a high sensitivity with a high S/N ratio, and a method of operating a solid-state imaging device for enhancing a wide dynamic range while keeping a high sensitivity with a high S/N ratio are disclosed. An array of integrated pixels has a structure wherein each pixel comprises a photodiode PD for receiving light and generating and accumulating photoelectric charges and a storage capacitor element CS coupled to the photodiode PD through a transfer transistor Tr1 for accumulating the photoelectric charges overflowing from the photodiode PD. The storage capacitor element CS is structured to accumulate the photoelectric charges overflowing from the photodiode PD in a storage-capacitor-element accumulation period TCS that is set to be a period at a predetermined ratio with respect to an accumulation period of the photodiode PD.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: September 21, 2010
    Assignee: National University Corporation Tohoku University
    Inventors: Shigetoshi Sugawa, Satoru Adachi, Kyoichi Yahata, Tatsuya Terada
  • Patent number: 7795106
    Abstract: A semiconductor device includes a Si crystal having a crystal surface in the vicinity of a (111) surface, and an insulation film formed on said crystal surface, at least a part of said insulation film comprising a Si oxide film containing Kr or a Si nitride film containing Ar or Kr.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: September 14, 2010
    Assignees: Tokyo Electron Limited
    Inventors: Tadahiro Ohmi, Shigetoshi Sugawa, Katsuyuki Sekine, Yuji Saito
  • Publication number: 20100208115
    Abstract: A pixel area with a two-dimensional array of pixels (10) each including a photodiode and a memory area (3a) on which memory sections for holding signals produced by the pixels for continuously recordable frames are separately provided on a semiconductor substrate. All the pixels simultaneously perform a photocharge storage operation, and the signals produced by the photocharge storage are extracted in parallel through mutually independent pixel output lines (14). In a plurality of memory sections connected to one pixel output line, a sample-and-hold transistor of a different memory section is turned on for each exposure cycle so as to sequentially hold signals in a capacitor of each memory section. After the continuous imaging is completed, all the pixel are sequentially read. Unlike CCD cameras, the present sensor does not simultaneously drive all the gate loads. Therefore, the sensor consumes less power yet can be driven at high speeds.
    Type: Application
    Filed: September 4, 2008
    Publication date: August 19, 2010
    Applicants: TOHOKU UNIVERSITY, SHIMADZU CORPORATION
    Inventors: Shigetoshi Sugawa, Yasushi Kondo, Hideki Tominaga