Patents by Inventor Shingo Sakamoto

Shingo Sakamoto 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: 20190298933
    Abstract: This needle assembly is provided with a needle having a needle tip, a needle hub, and a protector. The protector is displaceable between a non-protection position at which the needle is exposed and a protection position at which the needle tip is covered; has an opening formed elongated to match the needle, and includes a main body and a claw-like portion. The needle enters the main body from the opening to cover the needle tip when the protector is displaced to the protection position. The claw-like portion is bent by the needle when the protector is displaced to the protection position, allows the needle to advance into the protector main body, and is elastically restored to lock the needle when the needle enters the main body. The claw-like portion projects obliquely from the main body, extends across the opening in the width direction, and extends in the longitudinal direction.
    Type: Application
    Filed: December 4, 2017
    Publication date: October 3, 2019
    Inventors: Shingo SAKAMOTO, Asumi MINO
  • Publication number: 20190262599
    Abstract: A valved needle assembly includes a connector having an inner hole, a pipe body fixed to a tip end of the connector, a valve body, and an assembly part in which an insertion part provided to one of the connector and the pipe body is inserted into another such that the connector is disposed within or about the pipe body. A locking protrusion and a locking part are provided to superposed faces of the connector and the pipe body in the assembly part for preventing the insertion part from dislodgment by mutual lock, and an inclined guide surface for guiding the locking protrusion is formed on a tip end in a direction of assembly of the connector or the pipe body to which the locking part is provided. The valve body is incorporated by being mated with the connector and the pipe body.
    Type: Application
    Filed: August 4, 2017
    Publication date: August 29, 2019
    Applicant: NIPRO CORPORATION
    Inventors: Hiroyuki NAKAGAMI, Shingo SAKAMOTO, Haruo AKIMOTO, Ryosuke MIYAZAKI
  • Patent number: 10369280
    Abstract: In an indwelling needle assembly, a safety mechanism part is provided with an outer-needle-hub engaging part to be engaged with an outer needle hub, and an engaging-part opposing wall. Relative rotation of the outer-needle-hub engaging part and the engaging-part opposing wall is restricted, and at least one of the outer-needle-hub engaging part and the engaging-part opposing wall displaces integrally with urging parts. When an inner needle is pulled out of the outer needle hub, a block part engaged with the inner needle through an inner-needle engaging part is moved relative to the urging parts and forced to a non-contact state, and the urging parts displace in a direction approaching the inner needle, thereby preventing a needle tip of the inner needle from protruding from the safety mechanism part and releasing engagement of the outer needle hub with the safety mechanism part.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: August 6, 2019
    Assignee: NIPRO CORPORATION
    Inventors: Hiroyuki Nakagami, Shingo Sakamoto, Asumi Mino
  • Patent number: 10270408
    Abstract: Use of a closed loop APC may involve a problem of cost and power consumption due to increased circuit scale. The semiconductor device includes a power amplifier that amplifies an output from a transmission circuit and a regulator that supplies power to the power amplifier. The regulator includes an operational amplifier comprising a loop gain control circuit and a loop gain control voltage generation circuit that supplies control voltage to the loop gain control circuit. The loop gain control voltage generation circuit minimizes a loop gain of the operational amplifier when starting up the regulator.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: April 23, 2019
    Assignee: RENESA ELECTRONICS CORPORATION
    Inventor: Shingo Sakamoto
  • Publication number: 20180109233
    Abstract: Use of a closed loop APC may involve a problem of cost and power consumption due to increased circuit scale. The semiconductor device includes a power amplifier that amplifies an output from a transmission circuit and a regulator that supplies power to the power amplifier. The regulator includes an operational amplifier comprising a loop gain control circuit and a loop gain control voltage generation circuit that supplies control voltage to the loop gain control circuit. The loop gain control voltage generation circuit minimizes a loop gain of the operational amplifier when starting up the regulator.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 19, 2018
    Applicant: Renesas Electronics Corporation
    Inventor: Shingo SAKAMOTO
  • Publication number: 20180043093
    Abstract: In an indwelling needle assembly, a safety mechanism part is provided with an outer-needle-hub engaging part to be engaged with an outer needle hub, and an engaging-part opposing wall. Relative rotation of the outer-needle-hub engaging part and the engaging-part opposing wall is restricted, and at least one of the outer-needle-hub engaging part and the engaging-part opposing wall displaces integrally with urging parts. When an inner needle is pulled out of the outer needle hub, a block part engaged with the inner needle through an inner-needle engaging part is moved relative to the urging parts and forced to a non-contact state, and the urging parts displace in a direction approaching the inner needle, thereby preventing a needle tip of the inner needle from protruding from the safety mechanism part and releasing engagement of the outer needle hub with the safety mechanism part.
    Type: Application
    Filed: November 20, 2015
    Publication date: February 15, 2018
    Applicant: NIPRO CORPORATION
    Inventors: Hiroyuki NAKAGAMI, Shingo SAKAMOTO, Asumi MINO
  • Publication number: 20170106182
    Abstract: A medical valve which is able to more reliably support an outer peripheral part of an elastic valve body with respect to a housing, and prevent a problem of the elastic valve body becoming dislodged inward. A medical valve includes an elastic valve body with annular grooves formed thereon and a tubular support part formed at an outer peripheral side of an annular joining part positioned between the annular grooves. Inside and outside holding parts engage the annular grooves provided to the valve inside and outside surfaces of the annular joining part. The outside holding part and inside holding part are provided to an opening member, and with the tubular support part, a part projecting inward in an axial direction is sandwiched and supported between the inside holding part and outside holding part.
    Type: Application
    Filed: April 7, 2015
    Publication date: April 20, 2017
    Applicant: NIPRO CORPORATION
    Inventors: Kiyotaka YOSHIOKA, Hiroyuki NAKAGAMI, Shingo SAKAMOTO
  • Patent number: 9583231
    Abstract: Provided is a carbon nanotube composite electrode having carbon nanotubes which are firmly fixed to an electrode substrate so as to utilize the characteristics of the carbon nanotubes, and having the intrinsic electrode characteristics of carbon nanotubes. The carbon nanotube composite electrode has a surface layer containing a porous oxide material and carbon nanotubes on the surface of the electrode substrate, wherein the carbon nanotubes are generated from the porous oxide material, and at least some of the carbon nanotubes are electrically connected to the electrode substrate. The carbon nanotube composite electrode is firmly fixed to the electrode substrate, and has the intrinsic electrode characteristics of carbon nanotubes, and thus may preferably be used in applications for electrodes and the like in various electronic devices such as electrochemical sensors and batteries.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: February 28, 2017
    Assignee: NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Masato Tominaga, Shingo Sakamoto, Yuichi Fukamichi, Ayako Iwaoka, Terutaka Hashiguchi, Makoto Togami, Noriaki Watanabe
  • Patent number: 9263988
    Abstract: A crystal oscillation circuit is provided with a crystal oscillator, an inverter unit coupled in parallel with the crystal oscillator and including a plurality of inverters, a current supply unit that supplies current to at least a first inverter of the plurality of inverters, a signal converter that supplies current to at least a last inverter of the plurality of inverters and outputs a voltage to an external circuit, and a current controller that makes the current supply unit provide current corresponding to a voltage level of the output voltage of the signal converter. The crystal oscillation circuit is capable of reducing power consumption.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: February 16, 2016
    Assignee: Cypress Semiconductor Corporation
    Inventors: Kimitoshi Niratsuka, Shingo Sakamoto
  • Publication number: 20160036383
    Abstract: A crystal oscillation circuit is provided with a crystal oscillator, an inverter unit coupled in parallel with the crystal oscillator and including a plurality of inverters, a current supply unit that supplies current to at least a first inverter of the plurality of inverters a signal converter that supplies current to at least a last inverter of the plurality of inverters and outputs a voltage to an external circuit, and a current controller that makes the current supply unit provide current corresponding to a voltage level of the output voltage of the signal converter. The crystal oscillation circuit is capable of reducing power consumption.
    Type: Application
    Filed: July 30, 2014
    Publication date: February 4, 2016
    Applicant: Spansion LLC
    Inventors: Kimitoshi Niratsuka, Shingo Sakamoto
  • Publication number: 20140113127
    Abstract: Provided is a carbon nanotube composite electrode having carbon nanotubes which are firmly fixed to an electrode substrate so as to utilize the characteristics of the carbon nanotubes, and having the intrinsic electrode characteristics of carbon nanotubes. The carbon nanotube composite electrode has a surface layer containing a porous oxide material and carbon nanotubes on the surface of the electrode substrate, wherein the carbon nanotubes are generated from the porous oxide material, and at least some of the carbon nanotubes are electrically connected to the electrode substrate. The carbon nanotube composite electrode is firmly fixed to the electrode substrate, and has the intrinsic electrode characteristics of carbon nanotubes, and thus may preferably be used in applications for electrodes and the like in various electronic devices such as electrochemical sensors and batteries.
    Type: Application
    Filed: May 10, 2012
    Publication date: April 24, 2014
    Inventors: Masato Tominaga, Shingo Sakamoto, Yuichi Fukamichi, Ayako Iwaoka, Terutaka Hashiguchi, Makoto Togami, Noriaki Watanabe
  • Patent number: 8446205
    Abstract: A mixer circuit includes: a mixer circuit including a first transistor pair to output a first differential input signal and a second transistor pair to output a second differential input signal by inversing the first differential signal; a local signal supply circuit to supply a pair of local signals to gates of the first transistor pair and the second transistor pair; an operational amplifier including an input pair coupled to an output pair of the mixer circuit and an output pair coupled to the input pair via feedback resistors, the operational amplifier to amplify the first differential input signal and output a differential output signal; a common mode feedback circuit to control a center voltage of the differential output signal so that the center voltage maintains a common voltage; and a common voltage generator circuit to generate the common voltage according to an amplitude of the local signal.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 21, 2013
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Shingo Sakamoto, Jialin Ren, Kentaro Uchida
  • Patent number: 8174310
    Abstract: A quadrature demodulation circuit includes: first to fourth mixers to receive a modulation signal; a phase shifter to supply to the first and third mixers a first local frequency signal, to supply to the second mixer a second local frequency signal having a designated phase difference relative to the first local frequency signal, and to supply to the fourth mixer a third local frequency signal that is an inverse in phase to the second local frequency signal; a first adder to add a signal output from the first mixer and a signal output from the second mixer and to output a first demodulation signal; and a second adder to add a signal output from the third mixer and a signal output from the fourth mixer and to output a second demodulation signal.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: May 8, 2012
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Shingo Sakamoto, Kotaro Murakami
  • Patent number: 8045949
    Abstract: A noise cancellation circuit, which reduces noise in an output signal of an amplifier having an input resistance, a feedback resistance, and an operational amplifier, has: a first mixer circuit, which input an input signal across a first input terminal and a second input terminal of the operational amplifier, and performs frequency conversion of the input signal according to a first frequency signal; a noise cancellation amplifier, which amplifies an output signal of the first mixer circuit; a second mixer circuit, which performs frequency conversion of an output signal of the noise cancellation amplifier according to the first frequency signal; and a signal supply circuit, which supplies an output signal of the second mixer circuit to the first input terminal of the operational amplifier via an output resistance.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: October 25, 2011
    Assignee: Fujitsu Limited
    Inventors: Kazuaki Oishi, Shingo Sakamoto
  • Publication number: 20110241753
    Abstract: A mixer circuit includes: a mixer circuit including a first transistor pair to output a first differential input signal and a second transistor pair to output a second differential input signal by inversing the first differential signal; a local signal supply circuit to supply a pair of local signals to gates of the first transistor pair and the second transistor pair; an operational amplifier including an input pair coupled to an output pair of the mixer circuit and an output pair coupled to the input pair via feedback resistors, the operational amplifier to amplify the first differential input signal and output a differential output signal; a common mode feedback circuit to control a center voltage of the differential output signal so that the center voltage maintains a common voltage; and a common voltage generator circuit to generate the common voltage according to an amplitude of the local signal.
    Type: Application
    Filed: March 10, 2011
    Publication date: October 6, 2011
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Shingo SAKAMOTO, Jialin REN, Kentaro UCHIDA
  • Publication number: 20110043277
    Abstract: A quadrature demodulation circuit includes: first to fourth mixers to receive a modulation signal; a phase shifter to supply to the first and third mixers a first local frequency signal, to supply to the second mixer a second local frequency signal having a designated phase difference relative to the first local frequency signal, and to supply to the fourth mixer a third local frequency signal that is an inverse in phase to the second local frequency signal; a first adder to add a signal output from the first mixer and a signal output from the second mixer and to output a first demodulation signal; and a second adder to add a signal output from the third mixer and a signal output from the fourth mixer and to output a second demodulation signal.
    Type: Application
    Filed: August 23, 2010
    Publication date: February 24, 2011
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventors: Shingo Sakamoto, Kotaro Murakami
  • Patent number: D748777
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 2, 2016
    Assignee: NIPRO CORPORATION
    Inventors: Masayuki Uenishi, Hiroyuki Nakagami, Tomohiro Uchimura, Shingo Sakamoto
  • Patent number: D749214
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 9, 2016
    Assignee: NIPRO CORPORATION
    Inventors: Masayuki Uenishi, Hiroyuki Nakagami, Tomohiro Uchimura, Shingo Sakamoto
  • Patent number: D761421
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: July 12, 2016
    Assignee: NIPRO CORPORATION
    Inventors: Hiroyuki Nakagami, Tatsuya Kudo, Shingo Sakamoto
  • Patent number: D777321
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: January 24, 2017
    Assignee: Nipro Corporation
    Inventors: Hiroyuki Nakagami, Masayuki Uenishi, Naoki Nakagawa, Shingo Sakamoto, Ryuhei Koinuma