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).
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Patent number: 11650599Abstract: 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: GrantFiled: November 30, 2020Date of Patent: May 16, 2023Assignee: KUBOTA CORPORATIONInventors: Kenichi Iwami, Akisato Hori, Akira Chabata, Naohiro Ishikawa
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Patent number: 11280910Abstract: 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: GrantFiled: December 20, 2017Date of Patent: March 22, 2022Assignee: KUBOTA CORPORATIONInventors: Naohiro Ishikawa, Akisato Hori, Akira Chabata, Yasushi Watabe
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Publication number: 20210080972Abstract: 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: ApplicationFiled: November 30, 2020Publication date: March 18, 2021Applicant: KUBOTA CORPORATIONInventors: Kenichi IWAMI, Akisato HORI, Akira CHABATA, Naohiro ISHIKAWA
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Patent number: 10884429Abstract: 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 turType: GrantFiled: October 4, 2018Date of Patent: January 5, 2021Assignee: KUBOTA CORPORATIONInventors: Kenichi Iwami, Akisato Hori, Akira Chabata, Naohiro Ishikawa
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Publication number: 20190369260Abstract: 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: ApplicationFiled: December 20, 2017Publication date: December 5, 2019Applicant: KUBOTA CORPORATIONInventors: Naohiro ISHIKAWA, Akisato HORI, Akira CHABATA, Yasushi WATABE
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Patent number: 10260462Abstract: 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: GrantFiled: March 24, 2015Date of Patent: April 16, 2019Assignee: Honda Motor Co., Ltd.Inventors: Kenichiro Ikeya, Naohiro Ishikawa
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Publication number: 20190033881Abstract: 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 turType: ApplicationFiled: October 4, 2018Publication date: January 31, 2019Applicant: KUBOTA CORPORATIONInventors: Kenichi IWAMI, Akisato HORI, Akira CHABATA, Naohiro ISHIKAWA
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Publication number: 20170122271Abstract: 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: ApplicationFiled: March 24, 2015Publication date: May 4, 2017Inventors: Kenichiro Ikeya, Naohiro Ishikawa
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Publication number: 20160341165Abstract: 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: ApplicationFiled: March 30, 2016Publication date: November 24, 2016Applicant: HONDA MOTOR CO., LTD.Inventors: Naohiro ISHIKAWA, Kazuji ONO
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Patent number: 8287939Abstract: 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: GrantFiled: July 28, 2010Date of Patent: October 16, 2012Assignee: Azbil CorporationInventors: Yasuhiro Goshoo, Takaaki Kuroiwa, Naohiro Ishikawa, Daisuke Obara, Shinsuke Yamasaki, Françoise Vinet
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Patent number: 8198071Abstract: 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: GrantFiled: April 4, 2011Date of Patent: June 12, 2012Assignee: Azbil CorporationInventors: Yasuhiro Goshoo, Takaaki Kuroiwa, Naohiro Ishikawa, Daisuke Obara, Shinsuke Yamasaki, Kazuko Sasaki, Yasuko Horiguchi
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Publication number: 20110174773Abstract: 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: ApplicationFiled: April 4, 2011Publication date: July 21, 2011Applicant: YAMATAKE CORPORATIONInventors: Yasuhiro GOSHOO, Takaaki KUROIWA, Naohiro ISHIKAWA, Daisuke OBARA, Shinsuke YAMASAKI, Kazuko SASAKI, Yasuko HORIGUCHI
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Publication number: 20100288727Abstract: 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: ApplicationFiled: July 28, 2010Publication date: November 18, 2010Applicant: YAMATAKE CORPORATIONInventors: Yasuhiro GOSHOO, Takaaki KUROIWA, Naohiro ISHIKAWA, Daisuke OBARA, Shinsuke YAMASAKI, Françoise VINET
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Patent number: 7807105Abstract: 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: GrantFiled: December 16, 2004Date of Patent: October 5, 2010Assignee: Yamatake CorporationInventors: Yasuhiro Goshoo, Takaaki Kuroiwa, Naohiro Ishikawa, Daisuke Obara, Shinsuke Yamasaki, Françoise Vinet
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Publication number: 20100233429Abstract: 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: ApplicationFiled: September 6, 2006Publication date: September 16, 2010Applicant: YAMATAKE CORPORATIONInventors: Yasuhiro Goshoo, Takaaki Kuroiwa, Naohiro Ishikawa, Daisuke Obara, Shinsuke Yamasaki, Kazuko Sasaki, Yasuko Horiguchi
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Publication number: 20080253928Abstract: 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: ApplicationFiled: December 16, 2004Publication date: October 16, 2008Inventors: Yasuhiro Goshoo, Takaaki Kuroiwa, Naohiro Ishikawa, Daisuke Obara, Shinsuke Yamasaki, Francoise Vinet
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Patent number: 6922925Abstract: 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: GrantFiled: November 29, 2001Date of Patent: August 2, 2005Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Osamu Watanabe, Seiichiro Takeshita, Takaharu Nishimura, Kazuyoshi Yamada, Makoto Sugaya, Makoto Motozu, Naohiro Ishikawa, Shougo Kimura
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Patent number: 6874489Abstract: 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: GrantFiled: August 28, 2003Date of Patent: April 5, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Akiyuki Yonekawa, Ayako Saito, Naohiro Ishikawa, Tohru Ohta, Seiji Mori
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Publication number: 20040123855Abstract: 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: ApplicationFiled: August 28, 2003Publication date: July 1, 2004Inventors: Akiyuki Yonekawa, Ayako Saito, Naohiro Ishikawa, Tohru Ohta, Seiji Mori
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Publication number: 20030110669Abstract: 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: ApplicationFiled: October 15, 2002Publication date: June 19, 2003Inventors: Osamu Watanabe, Seiichiro Takeshita, Takaharu Nishimura, Kazuyoshi Yamada, Makoto Sugaya, Makoto Motozu, Naohiro Ishikawa, Shougo Kimura