Patents by Inventor Nobukazu Tanaka

Nobukazu Tanaka 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: 10372248
    Abstract: The semiconductor device is intended for connection with an in-cell type display touch panel having a plurality of common electrodes, a reference voltage for display is applied to the common electrodes in a display drive period, and the common electrodes serve as sensor electrodes in a touch detection period. The semiconductor device includes a DC level shift circuit operable to shift the DC level of a toggle signal output by a toggle drive circuit to the reference voltage. The semiconductor device supplies the reference voltage to the common electrodes of the display touch panel in the display drive period, and performs a guarding action in which at least a part of the plurality of common electrodes is supplied with a toggle signal shifted in DC level in the touch detection period.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: August 6, 2019
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Kazuya Endo, Shinobu Nohtomi, Nobukazu Tanaka, Tomohiro Hirakawa, Hiroshi Takeyama, Takayuki Noto, Petr Shepelev
  • Patent number: 10352731
    Abstract: A touch sensing circuit operable to sense a conductor approaching a sensor capacitance by measuring a response signal obtained from the sensor capacitance according to an applied detection signal includes an A/D converter and a Fourier transform device. The A/D converter samples the response signal with a predetermined cycle, followed by conversion to a digital value and outputs as time-series response data. The Fourier transform device calculates, from the time-series response data, a result of transformation at a detection frequency representing the reciprocal of a cycle of the detection signal and outputs it. The touch sensing circuit converts the response signal to the frequency domain, calculates only components (harmonics or others as needed) of a frequency equal to that of the detection signal required for touch sensing, and supplies them for a touch coordinate calculation process in a subsequent stage.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: July 16, 2019
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Nobukazu Tanaka, Takayuki Noto, Tetsuo Tanemura
  • Patent number: 10324029
    Abstract: A concentration measurement device including at least one light source; a measurement cell for containing a fluid to be measured; a splitter for dividing light from the light source into incident light being incident into the measurement cell and non-incident light not being incident into the measurement cell; a transmitted-light detector for detecting transmitted light that is the incident light having passed through the measurement cell; a non-incident light detector for detecting the non-incident light; and an arithmetic part for correcting a detection signal of the transmitted-light detector using a detection signal of the non-incident light detector.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: June 18, 2019
    Assignees: TOKUSHIMA UNIVERSITY, FUJIKIN INCORPORATED
    Inventors: Yoshihiro Deguchi, Masaaki Nagase, Michio Yamaji, Nobukazu Ikeda, Kouji Nishino, Masayoshi Kawashima, Kazuteru Tanaka
  • Patent number: 10318084
    Abstract: An input device may include a matrix electrode array that includes various transmitter electrodes and various receiver electrodes. The transmitter electrodes may be disposed in a first direction. The receiver electrodes may be disposed in a second direction that is substantially parallel with the first direction. The input device may further include a first set of routing traces coupled to the transmitter electrodes and disposed underneath the transmitter electrodes in the first direction. The input device may further include a second set of routing traces coupled to the receiver electrodes and disposed underneath the receiver electrodes in the second direction.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: June 11, 2019
    Assignee: Synaptics Incorporated
    Inventors: Petr Shepelev, Tetsuo Tanemura, Nobukazu Tanaka, Takayuki Noto
  • Publication number: 20190087029
    Abstract: An input device may include a matrix electrode array that includes various transmitter electrodes and various receiver electrodes. The transmitter electrodes may be disposed in a first direction. The receiver electrodes may be disposed in a second direction that is substantially parallel with the first direction. The input device may further include a first set of routing traces coupled to the transmitter electrodes and disposed underneath the transmitter electrodes in the first direction. The input device may further include a second set of routing traces coupled to the receiver electrodes and disposed underneath the receiver electrodes in the second direction.
    Type: Application
    Filed: September 18, 2017
    Publication date: March 21, 2019
    Applicant: Synaptics Incorporated
    Inventors: Petr Shepelev, Tetsuo Tanemura, Nobukazu Tanaka, Takayuki Noto
  • Patent number: 10235000
    Abstract: A sensing system includes: a transmitter circuitry configured to transmit drive signals to N sensors, N being a positive integer; N receiver circuitries configured to receive in parallel N sense signals generated in response to the drive signals by N sensors, N being a positive integer; N modulation circuitries configured to modulate outputs of the N receiver circuitries; a mixer circuitry configured to mix outputs of the N modulation circuitries; an A/D converter circuitry configured to receive an output of the mixer circuitry; and a demodulation circuitry. The demodulation circuitry is configured to demodulate an output of the A/D converter circuitry to generate N digital sense values corresponding to the N sense signals.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: March 19, 2019
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Nobukazu Tanaka, Takayuki Noto, Tetsuo Tanemura
  • Publication number: 20190064956
    Abstract: Embodiments described herein include a method for detecting a presence of an input in a capacitive sensing device that includes a sensing region and a plurality of sensor electrodes. The method includes driving a first column of transmitter sensor electrodes at a first potential and driving a second column of transmitter sensor electrodes at a second potential different than the first potential. The method includes acquiring a measurement from each row of sensor electrodes, where a first sensing node includes the first column of transmitter sensor electrodes and a third column of receiver sensor electrodes, and a second sensing node includes the second column of transmitter sensor electrodes and a fourth column of receiver sensor electrodes. The method also includes determining, using the measurements from each row of sensor electrodes, a first set of transcapacitive measurements corresponding to the plurality of sensor electrodes.
    Type: Application
    Filed: August 28, 2017
    Publication date: February 28, 2019
    Inventors: Tetsuo TANEMURA, Nobukazu TANAKA, Takayuki NOTO
  • Publication number: 20180329536
    Abstract: A semiconductor device includes an analog front end and processing circuitry. The analog front end is configured to obtain capacitance detection data depending on capacitances of a plurality of sense electrodes of a liquid crystal display panel. The processing circuitry is configured to generate touch sensing data associated with a current touch sensing frame, based on capacitance detection data associated with the current touch sensing frame and capacitance detection data associated with a former touch sensing frame selected in response to a state in which the liquid crystal display panel is placed in the current touch sensing frame.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 15, 2018
    Inventors: Nobukazu TANAKA, Takayuki NOTO, Yoshitaka IWASAKI
  • Publication number: 20180173465
    Abstract: A semiconductor device including a first data terminal, a data output terminal, a control circuitry, first and second communication interfaces, and a bridge circuitry. The bridge circuitry is configured to operate a normal mode and a bridge mode. In the normal mode, the data output terminal is connected to the second communication interface circuitry, and in the bridge mode, the first data terminal is connected to the data output terminal in a bridge mode.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 21, 2018
    Inventors: Nobukazu TANAKA, Takayuki NOTO, Masaaki SHIOMURA
  • Publication number: 20180113534
    Abstract: A sensing system includes: a transmitter circuitry configured to transmit drive signals to N sensors, N being a positive integer; N receiver circuitries configured to receive in parallel N sense signals generated in response to the drive signals by N sensors, N being a positive integer; N modulation circuitries configured to modulate outputs of the N receiver circuitries; a mixer circuitry configured to mix outputs of the N modulation circuitries; an A/D converter circuitry configured to receive an output of the mixer circuitry; and a demodulation circuitry. The demodulation circuitry is configured to demodulate an output of the A/D converter circuitry to generate N digital sense values corresponding to the N sense signals.
    Type: Application
    Filed: October 20, 2017
    Publication date: April 26, 2018
    Inventors: Nobukazu TANAKA, Takayuki NOTO, Tetsuo TANEMURA
  • Publication number: 20180107317
    Abstract: A display driver includes: a plurality of source output terminals configured to be connected to a plurality of source input terminals of a display panel; a source driver circuitry configured to generate source signals to the source input terminals; a plurality of interconnections connected to a capacitance detection circuitry for touch sensing in a sensing region of the display panel, and a selector. The selector is configured to selectively connect the source output terminals to the source driver circuitry and the interconnections.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 19, 2018
    Inventors: Nobukazu TANAKA, Takayuki NOTO, Masaaki SHIOMURA
  • Publication number: 20180107309
    Abstract: The semiconductor device is intended for connection with an in-cell type display touch panel having a plurality of common electrodes, a reference voltage for display is applied to the common electrodes in a display drive period, and the common electrodes serve as sensor electrodes in a touch detection period. The semiconductor device includes a DC level shift circuit operable to shift the DC level of a toggle signal output by a toggle drive circuit to the reference voltage. The semiconductor device supplies the reference voltage to the common electrodes of the display touch panel in the display drive period, and performs a guarding action in which at least a part of the plurality of common electrodes is supplied with a toggle signal shifted in DC level in the touch detection period.
    Type: Application
    Filed: October 19, 2016
    Publication date: April 19, 2018
    Inventors: Kazuya ENDO, Shinobu NOHTOMI, Nobukazu TANAKA, Tomohiro HIRAKAWA, Hiroshi TAKEYAMA, Takayuki NOTO, Petr SHEPELEV
  • Publication number: 20180074641
    Abstract: Provided is a touch sensing circuit configured to sense an approach of a conductive object toward a sensor capacitor through measuring a sensor response signal generated by the sensor capacitor in response to a sensing wave signal applied to the sensor capacitor. The touch sensing circuit is connectable to a conversion circuit and a touch detection circuit. The conversion circuit calculates a response signal vector for a frequency component of the sensing wave signal by converting the response signal into a frequency domain representation. The touch sensing circuit includes a baseline vector manager circuit holding a baseline vector and a vector subtraction circuit, and calculates a delta vector which is the vector difference between the baseline vector and the response signal vector received from the conversion circuit. The touch detection circuit detects an approach of a conductive object towards the sensor capacitor on the basis of the calculated delta vector.
    Type: Application
    Filed: August 9, 2017
    Publication date: March 15, 2018
    Inventors: Nobukazu TANAKA, Takayuki NOTO, Tetsuo TANEMURA
  • Publication number: 20170343386
    Abstract: A touch sensing circuit operable to sense a conductor approaching a sensor capacitance by measuring a response signal obtained from the sensor capacitance according to an applied detection signal includes an A/D converter and a Fourier transform device. The A/D converter samples the response signal with a predetermined cycle, followed by conversion to a digital value and outputs as time-series response data. The Fourier transform device calculates, from the time-series response data, a result of transformation at a detection frequency representing the reciprocal of a cycle of the detection signal and outputs it. The touch sensing circuit converts the response signal to the frequency domain, calculates only components (harmonics or others as needed) of a frequency equal to that of the detection signal required for touch sensing, and supplies them for a touch coordinate calculation process in a subsequent stage.
    Type: Application
    Filed: March 23, 2017
    Publication date: November 30, 2017
    Inventors: Nobukazu TANAKA, Takayuki NOTO, Tetsuo TANEMURA
  • Patent number: 9760222
    Abstract: Embodiments herein include a device, system, and method for periodically capturing sensing signals using one or more detection electrodes to generate data for detecting an object proximate to the detection electrodes. The sensing signals are captured during detection periods within periodic detection cycles where each of the detection cycles define a period of time between consecutive detection periods. In addition, the device, system and method set a duration of the detection cycle to 1/m (where m is appositive integer) of a duration of a display-scan cycle. The value of m is selected based on a periodic noise signal. Thus, the device, system, and method may prevent a periodic noise signal which has a cycle that is longer than the detection period from worsening the accuracy of touch detection.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: September 12, 2017
    Assignee: Synaptics Japan GK
    Inventors: Tatsuya Ishii, Nobukazu Tanaka, Hiroshi Takeyama, Akihito Akai
  • Publication number: 20150169108
    Abstract: Embodiments herein include a device, system, and method for periodically capturing sensing signals using one or more detection electrodes to generate data for detecting an object proximate to the detection electrodes. The sensing signals are captured during detection periods within periodic detection cycles where each of the detection cycles define a period of time between consecutive detection periods. In addition, the device, system and method set a duration of the detection cycle to 1/m (where m is appositive integer) of a duration of a display-scan cycle. The value of m is selected based on a periodic noise signal. Thus, the device, system, and method may prevent a periodic noise signal which has a cycle that is longer than the detection period from worsening the accuracy of touch detection.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 18, 2015
    Inventors: Tatsuya ISHII, Nobukazu TANAKA, Hiroshi TAKEYAMA, Akihito AKAI
  • Patent number: 8647668
    Abstract: The present invention provides rapid disintegrating tablets in oral cavity having a shortened disintegration time in oral cavity as well as a sufficient hardness compared to rapid disintegrating tablets of the prior art. The above objective is solved by a composition in which the inorganic excipient and the disintegrating agent are dispersed in the complex particles consisting of mannitol and other saccharide(s) in a specific ratio, and rapid disintegrating tablets in oral cavity obtained by direct compression of the composition.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: February 11, 2014
    Assignee: Fuji Chemical Industry Co., Ltd.
    Inventors: Nobukazu Tanaka, Yoshiro Nagai, Hiroshi Kawaguchi, Tadashi Fukami, Terumasa Hosokawa
  • Patent number: 8349361
    Abstract: The present invention provides rapid disintegrating tablets in oral cavity having a shortened disintegration time in oral cavity as well as a sufficient hardness with compared to rapid disintegrating tablets of the prior art. The above objective is solved by a composition for rapid disintegrating tablets in oral cavity, wherein components (a) to (c) are contained in such manner that (a) saccharides consisting of a combination of mannitol and xylitol is 40 to 90 parts by weight; (b) the inorganic excipient is 1 to 30 parts by weight; and (c) the disintegrating agent is 5 to 40 parts by weight, provided that the total amount of (a), (b) and (c) is 100 parts by weight.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: January 8, 2013
    Assignee: Fuji Chemical Industry Co., Ltd.
    Inventors: Nobukazu Tanaka, Yoshiro Nagai, Hiroshi Kawaguchi, Tadashi Fukami, Terumasa Hosokawa
  • Patent number: 8272838
    Abstract: An impeller includes an impeller body which rotates about a rotation axis, and a vane which is provided at the impeller body. The impeller body receives force asymmetric with respect to the rotation axis in driving and rotation in a fluid in a manner that radially inward fluid force, which is generated due to arrangement of the vane, acts on a predetermined point in a peripheral direction. In the impeller body, a filled space filled, in a fluid, with the fluid is formed.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: September 25, 2012
    Assignee: Shinmaywa Industries, Ltd.
    Inventors: Kazuki Takeuchi, Hiroshi Kanki, Motonobu Tarui, Nobukazu Tanaka
  • Publication number: 20110182734
    Abstract: An impeller includes an impeller body in which an internal flow path and a recessed section are formed; a lid covering an opening of the recessed section; and a balance weight arranged between the impeller body and the lid. The lid is attached and fixed to the impeller body through an engagement section. Holding sections for the balance weight are formed in a back-side surface of the lid. When attaching and fixing the lid to the impeller body, the balance weight is sandwiched between the holding section of the lid and the impeller body to be fixed.
    Type: Application
    Filed: July 6, 2009
    Publication date: July 28, 2011
    Applicant: SHINMAYWA INDUSTRIES, LTD.
    Inventors: Motonobu Tarui, Kazuki Takeuchi, Junya Enomoto, Nobukazu Tanaka