Patents by Inventor Naohiro Ishikawa

Naohiro Ishikawa 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: 11650599
    Abstract: A positioning detection device includes a first obtaining circuit to obtain a satellite signal, a second obtaining circuit to obtain a detection signal of an inertial device, a third obtaining circuit to obtain a traveling state of the vehicle body including straight-traveling and turning of the vehicle body, a first calculator to calculate first positioning information in a satellite navigation system to which the satellite signal is applied, a second calculator to calculate second positioning information in an inertial navigation system to which the detection signal is applied, a third calculator to calculate third positioning information in a hybrid navigation system to which the first positioning information and the second positioning information are applied, and an output circuit to output the third positioning information upon obtaining the straight-traveling and to output the first positioning information and/or the second positioning information upon obtaining the turning.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: May 16, 2023
    Assignee: KUBOTA CORPORATION
    Inventors: Kenichi Iwami, Akisato Hori, Akira Chabata, Naohiro Ishikawa
  • Patent number: 11280910
    Abstract: A satellite radio wave sensitivity distribution management system for a work vehicle that travels automatically in a work site by satellite navigation technology includes a satellite positioning module that outputs satellite position data and reception sensitivity based on satellite information from a satellite, a sensitivity reduction event detection section that detects occurrence of a sensitivity reduction event, a sensitivity reduction event information generation section that generates sensitivity reduction event information including an occurrence location of the sensitivity reduction event, an occurrence time of the sensitivity reduction event, and satellite identification data, a sensitivity reduction event information storage section, a reception obstacle determination section that determines a reception obstacle as the cause of the sensitivity reduction event, and a sensitivity reduction management section that manages a sensitivity reduction area and a sensitivity reduction time zone.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: March 22, 2022
    Assignee: KUBOTA CORPORATION
    Inventors: Naohiro Ishikawa, Akisato Hori, Akira Chabata, Yasushi Watabe
  • Publication number: 20210080972
    Abstract: A positioning detection device includes a first obtaining circuit to obtain a satellite signal, a second obtaining circuit to obtain a detection signal of an inertial device, a third obtaining circuit to obtain a traveling state of the vehicle body including straight-traveling and turning of the vehicle body, a first calculator to calculate first positioning information in a satellite navigation system to which the satellite signal is applied, a second calculator to calculate second positioning information in an inertial navigation system to which the detection signal is applied, a third calculator to calculate third positioning information in a hybrid navigation system to which the first positioning information and the second positioning information are applied, and an output circuit to output the third positioning information upon obtaining the straight-traveling and to output the first positioning information and/or the second positioning information upon obtaining the turning.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Applicant: KUBOTA CORPORATION
    Inventors: Kenichi IWAMI, Akisato HORI, Akira CHABATA, Naohiro ISHIKAWA
  • Patent number: 10884429
    Abstract: A positioning detection device includes a first obtaining circuit to obtain a satellite signal, a second obtaining circuit to obtain a detection signal of an inertial device, a third obtaining circuit to obtain a traveling state of the vehicle body including straight-traveling and turning of the vehicle body, a first calculator to calculate first positioning information in satellite navigation system to which the satellite signal is applied, a second calculator to calculate second positioning information in inertial navigation system to which the detection signal is applied, a third calculator to calculate third positioning information in Kalman filter to which the first positioning information and the second positioning information are applied, and an output circuit to output the third positioning information when the third obtaining circuit obtains the straight-traveling and to output the first positioning information and/or the second positioning information when the third obtaining circuit obtains the tur
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: January 5, 2021
    Assignee: KUBOTA CORPORATION
    Inventors: Kenichi Iwami, Akisato Hori, Akira Chabata, Naohiro Ishikawa
  • Publication number: 20190369260
    Abstract: A satellite radio wave sensitivity distribution management system for a work vehicle that travels automatically in a work site by satellite navigation technology includes a satellite positioning module that outputs satellite position data and reception sensitivity based on satellite information from a satellite, a sensitivity reduction event detection section that detects occurrence of a sensitivity reduction event, a sensitivity reduction event information generation section that generates sensitivity reduction event information including an occurrence location of the sensitivity reduction event, an occurrence time of the sensitivity reduction event, and satellite identification data, a sensitivity reduction event information storage section, a reception obstacle determination section that determines a reception obstacle as the cause of the sensitivity reduction event, and a sensitivity reduction management section that manages a sensitivity reduction area and a sensitivity reduction time zone.
    Type: Application
    Filed: December 20, 2017
    Publication date: December 5, 2019
    Applicant: KUBOTA CORPORATION
    Inventors: Naohiro ISHIKAWA, Akisato HORI, Akira CHABATA, Yasushi WATABE
  • Patent number: 10260462
    Abstract: In an intake device for an internal combustion engine, a difference in the air-fuel ratio between the cylinders is reduced without increasing the lengths of the branch passages. An intake device (23) for an internal combustion engine (1) having at least three cylinders (3) includes: an intake chamber (30) configured to be connected with an air inlet (16); and multiple branch passages (31) connected at upstream ends (41) thereof to the intake chamber and connected at downstream ends thereof to intake ports (6) communicating with the cylinders, respectively, wherein the upstream ends of the branch passages are arranged in a direction of rotation about a predetermined center line X in a same order as an order of ignition of the cylinders.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: April 16, 2019
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kenichiro Ikeya, Naohiro Ishikawa
  • Publication number: 20190033881
    Abstract: A positioning detection device includes a first obtaining circuit to obtain a satellite signal, a second obtaining circuit to obtain a detection signal of an inertial device, a third obtaining circuit to obtain a traveling state of the vehicle body including straight-traveling and turning of the vehicle body, a first calculator to calculate first positioning information in satellite navigation system to which the satellite signal is applied, a second calculator to calculate second positioning information in inertial navigation system to which the detection signal is applied, a third calculator to calculate third positioning information in Kalman filter to which the first positioning information and the second positioning information are applied, and an output circuit to output the third positioning information when the third obtaining circuit obtains the straight-traveling and to output the first positioning information and/or the second positioning information when the third obtaining circuit obtains the tur
    Type: Application
    Filed: October 4, 2018
    Publication date: January 31, 2019
    Applicant: KUBOTA CORPORATION
    Inventors: Kenichi IWAMI, Akisato HORI, Akira CHABATA, Naohiro ISHIKAWA
  • Publication number: 20170122271
    Abstract: In an intake device for an internal combustion engine, a difference in the air-fuel ratio between the cylinders is reduced without increasing the lengths of the branch passages. An intake device (23) for an internal combustion engine (1) having at least three cylinders (3) includes: an intake chamber (30) configured to be connected with an air inlet (16); and multiple branch passages (31) connected at upstream ends (41) thereof to the intake chamber and connected at downstream ends thereof to intake ports (6) communicating with the cylinders, respectively, wherein the upstream ends of the branch passages are arranged in a direction of rotation about a predetermined center line X in a same order as an order of ignition of the cylinders.
    Type: Application
    Filed: March 24, 2015
    Publication date: May 4, 2017
    Inventors: Kenichiro Ikeya, Naohiro Ishikawa
  • Publication number: 20160341165
    Abstract: An injector includes a nozzle distal end portion. The nozzle distal end portion has an inner surface and an outer surface. The inner surface has a valve seat which has an annular shape on the inner surface. The nozzle distal end portion has a plurality of injection holes penetrating through the nozzle distal end portion. Each of the plurality of injection holes is defined by a hole wall which has a hole-wall inner portion and a hole-wall outer portion. An angle between the inner surface and the hole-wall inner portion is an acute angle. An angle between the inner surface and the hole-wall outer portion is an obtuse angle. A first recess portion is provided on the inner surface to extend to the hole-wall outer portion.
    Type: Application
    Filed: March 30, 2016
    Publication date: November 24, 2016
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Naohiro ISHIKAWA, Kazuji ONO
  • Patent number: 8287939
    Abstract: A substrate for biochips is manufactured so that the substrate has a substrate surface having a reaction region capable of reacting with biological substances and a non-reaction region not reacting with the biological substances, sunken bottomed wells formed in the substrate surface, and a layer of a material capable of reacting with the biological substances having a surface exposed only at the bottoms of the bottomed wells, the exposed surface forming the reaction region.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: October 16, 2012
    Assignee: Azbil Corporation
    Inventors: Yasuhiro Goshoo, Takaaki Kuroiwa, Naohiro Ishikawa, Daisuke Obara, Shinsuke Yamasaki, Françoise Vinet
  • Patent number: 8198071
    Abstract: A base plate having a surface on which a plurality of hydroxyl groups can be introduced, a metallic membrane disposed on the base plate and having a plurality of wells reaching the base plate, and a crosslinkable polymer membrane disposed on the metallic membrane are included.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: June 12, 2012
    Assignee: Azbil Corporation
    Inventors: Yasuhiro Goshoo, Takaaki Kuroiwa, Naohiro Ishikawa, Daisuke Obara, Shinsuke Yamasaki, Kazuko Sasaki, Yasuko Horiguchi
  • Publication number: 20110174773
    Abstract: A base plate having a surface on which a plurality of hydroxyl groups can be introduced, a metallic membrane disposed on the base plate and having a plurality of wells reaching the base plate, and a crosslinkable polymer membrane disposed on the metallic membrane are included.
    Type: Application
    Filed: April 4, 2011
    Publication date: July 21, 2011
    Applicant: YAMATAKE CORPORATION
    Inventors: Yasuhiro GOSHOO, Takaaki KUROIWA, Naohiro ISHIKAWA, Daisuke OBARA, Shinsuke YAMASAKI, Kazuko SASAKI, Yasuko HORIGUCHI
  • Publication number: 20100288727
    Abstract: A substrate for biochips is manufactured so that the substrate has a substrate surface having a reaction region capable of reacting with biological substances and a non-reaction region not reacting with the biological substances, sunken bottomed wells formed in the substrate surface, and a layer of a material capable of reacting with the biological substances having a surface exposed only at the bottoms of the bottomed wells, the exposed surface forming the reaction region.
    Type: Application
    Filed: July 28, 2010
    Publication date: November 18, 2010
    Applicant: YAMATAKE CORPORATION
    Inventors: Yasuhiro GOSHOO, Takaaki KUROIWA, Naohiro ISHIKAWA, Daisuke OBARA, Shinsuke YAMASAKI, Françoise VINET
  • Patent number: 7807105
    Abstract: A substrate for biochips has a substrate surface having a reaction region capable of reacting with biological substances and a non-reaction region not reacting with the biological substances, sunken bottomed wells formed in the substrate surface, and a layer of a material capable of reacting with the biological substances having a surface exposed only at the bottoms of the bottomed wells, the exposed surface forming the reaction region.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: October 5, 2010
    Assignee: Yamatake Corporation
    Inventors: Yasuhiro Goshoo, Takaaki Kuroiwa, Naohiro Ishikawa, Daisuke Obara, Shinsuke Yamasaki, Françoise Vinet
  • Publication number: 20100233429
    Abstract: A base plate having a surface on which a plurality of hydroxyl groups can be introduced, a metallic membrane disposed on the base plate and having a plurality of wells reaching the base plate, and a crosslinkable polymer membrane disposed on the metallic membrane are included.
    Type: Application
    Filed: September 6, 2006
    Publication date: September 16, 2010
    Applicant: YAMATAKE CORPORATION
    Inventors: Yasuhiro Goshoo, Takaaki Kuroiwa, Naohiro Ishikawa, Daisuke Obara, Shinsuke Yamasaki, Kazuko Sasaki, Yasuko Horiguchi
  • Publication number: 20080253928
    Abstract: A substrate for biochips has a substrate surface having a reaction region capable of reacting with biological substances and a non-reaction region not reacting with the biological substances, sunken bottomed wells formed in the substrate surface, and a layer of a material capable of reacting with the biological substances having a surface exposed only at the bottoms of the bottomed wells, the exposed surface forming the reaction region.
    Type: Application
    Filed: December 16, 2004
    Publication date: October 16, 2008
    Inventors: Yasuhiro Goshoo, Takaaki Kuroiwa, Naohiro Ishikawa, Daisuke Obara, Shinsuke Yamasaki, Francoise Vinet
  • Patent number: 6922925
    Abstract: A construction machine of the present invention is provided, in a compartment formed by a cover, with an engine, a centrifugal fan, and a heat exchanger for exchanging heat between cooling air blown by the centrifugal fan and a specified medium, wherein the centrifugal fan and the heat exchanger are arranged further upstream than the engine with respect to flow of cooling air, so that cooling air sucked in by the centrifugal fan is led to the engine after passing through the heat exchanger.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: August 2, 2005
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Osamu Watanabe, Seiichiro Takeshita, Takaharu Nishimura, Kazuyoshi Yamada, Makoto Sugaya, Makoto Motozu, Naohiro Ishikawa, Shougo Kimura
  • Patent number: 6874489
    Abstract: There are provided on an upper surface of a piston 13 which confronts to a combustion chamber two first squish areas A1 each containing a flat surface 13a extending along an outer circumferential portion the piston 13 in an arc-like fashion and two second squish areas A2 formed between valve recesses 13d, 13e of respective pairs of inlet and exhaust valves 19, 21 and each containing a protruding portion which protrudes upwardly.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: April 5, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Akiyuki Yonekawa, Ayako Saito, Naohiro Ishikawa, Tohru Ohta, Seiji Mori
  • Publication number: 20040123855
    Abstract: There are provided on an upper surface of a piston 13 which confronts to a combustion chamber two first squish areas A1 each containing a flat surface 13a extending along an outer circumferential portion the piston 13 in an arc-like fashion and two second squish areas A2 formed between valve recesses 13d, 13e of respective pairs of inlet and exhaust valves 19, 21 and each containing a protruding portion which protrudes upwardly.
    Type: Application
    Filed: August 28, 2003
    Publication date: July 1, 2004
    Inventors: Akiyuki Yonekawa, Ayako Saito, Naohiro Ishikawa, Tohru Ohta, Seiji Mori
  • Publication number: 20030110669
    Abstract: A construction machine of the present invention is provided, in a compartment formed by a cover, with an engine, a centrifugal fan, and a heat exchanger for exchanging heat between cooling air blown by the centrifugal fan and a specified medium, wherein the centrifugal fan and the heat exchanger are arranged further upstream than the engine with respect to flow of cooling air, so that cooling air sucked in by the centrifugal fan is led to the engine after passing through the heat exchanger.
    Type: Application
    Filed: October 15, 2002
    Publication date: June 19, 2003
    Inventors: Osamu Watanabe, Seiichiro Takeshita, Takaharu Nishimura, Kazuyoshi Yamada, Makoto Sugaya, Makoto Motozu, Naohiro Ishikawa, Shougo Kimura