Patents by Inventor Eiji Ishii

Eiji Ishii 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: 20210190025
    Abstract: The conventional penetration control has a problem that the penetrations of all the injection holes change. An object of the invention is to provide a fuel injection valve having a simple structure and capable of selectively controlling a penetration force of spray injected in a piston direction by a lift amount. In order to solve the above problem, the fuel injection valve of the invention is a fuel injection valve for injecting fuel to a combustion chamber of an internal combustion engine, which includes a valve body that is lifted by any one of a first lift amount of a maximum valve body lift amount and a second lift amount smaller than the first lift amount.
    Type: Application
    Filed: November 13, 2018
    Publication date: June 24, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Tomoyuki HOSAKA, Eiji ISHII, Kazuki YOSHIMURA, Noriyuki MAEKAWA
  • Publication number: 20210131372
    Abstract: An object of the present invention is to provide a control device of an injector capable of suppressing the influence of pressure reduction boiling even if pressure in a combustion chamber is low. In a case where the temperature of fuel injected from a fuel injection valve is within a set high temperature region and the pressure of the combustion chamber is within a set low pressure region, the control device of an in-cylinder direct injection-type injector according to the present invention controls to increase a lift amount of the injector as compared to the case of a low temperature region or a high pressure region.
    Type: Application
    Filed: February 5, 2018
    Publication date: May 6, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tomoyuki HOSAKA, Taisuke SUGII, Eiji ISHII, Kazuki YOSHIMURA, Yoshihiro SUKEGAWA, Masayuki SARUWATARI
  • Publication number: 20210084833
    Abstract: The agricultural material includes a cellulose acylate layer and a polymer layer. The cellulose acylate layer is formed of cellulose acylate. The polymer layer is provided on a first CA surface, which is one surface of the cellulose acylate layer. The polymer layer has a moisture permeation resistance of at most 7.5×10?4 m2·day/g per 1 ?m of thickness and is formed of a polymer different from cellulose acylate. The agricultural material has a tear strength of at least 0.10 N.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Eiji ISHII, Shogo KATANO, Kimito WASHIYA
  • Publication number: 20210074496
    Abstract: To attempt to reduce the sizes of apparatuses while ensuring insulation performance with simpler configurations. In a gas circuit breaker according to the present invention, a high-temperature-gas guiding section is provided at an axial-end section of a fixed main conductor that is connected to a fixed lead conductor connected to a power system, and that has an open section for discharging an insulating gas having an increased temperature and an increased pressure due to an arc produced at the time of interruption. The high-temperature-gas guiding section has a plurality of holes for discharging, into a filled container, a high-temperature gas produced by heating the insulating gas filling the filled container, and is formed such that the directions of the plurality of holes are oblique to the axial direction of the fixed main conductor.
    Type: Application
    Filed: July 22, 2020
    Publication date: March 11, 2021
    Inventors: Masanori ISHIKAWA, Eiji ISHII, Takahiro NISHIMURA
  • Patent number: 10907601
    Abstract: A fuel injection valve includes a valve seat, a valve element, and a plurality of swirl fuel injection passages. The plurality of swirl fuel injection passages are divided into a first swirl fuel injection passage group that forms a first spray and a second swirl fuel injection passage group that forms a second spray that is oriented in a direction different from a first direction.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: February 2, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Mitsuhiro Matsuzawa, Kazuki Yoshimura, Eiji Ishii, Akihiro Yamazaki, Takahiro Saito, Nobuaki Kobayashi
  • Patent number: 10876508
    Abstract: Provided is a fuel injection valve which can be easily processed and can realize sufficient atomization while suppressing spreading of spray.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: December 29, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Mitsuhiro Matsuzawa, Kazuki Yoshimura, Eiji Ishii, Akihiro Yamazaki, Takahiro Saito, Nobuaki Kobayashi
  • Publication number: 20200400112
    Abstract: An object of the present invention is to provide a fuel injection valve that realizes atomization while suppressing spread of a spray. A fuel injection valve includes: a valve body and a valve seat that cooperate to open and close a fuel passage; a swirl imparting chamber that is arranged on a downstream side of an opening and closing portion of the fuel passage by the valve body and the valve seat, and imparts a swirling velocity to fuel; a communication passage arranged on an upstream side of the swirl imparting chamber and connected to the swirl imparting chamber; and fuel injection holes and that are open at a bottom surface of the swirl imparting chamber and injects fuel imparted with the swirling velocity in a swirl passage to an outside, the fuel injection holes and configured such that cross-sectional areas of the fuel injection holes and increase from the inlet to the outlet.
    Type: Application
    Filed: September 25, 2018
    Publication date: December 24, 2020
    Inventors: Hiroshi MUKAI, Mitsuhiro MATSUZAWA, Akihiro YAMAZAKI, Masaki NAGAOKA, Takahiro SAITO, Eiji ISHII, Taisuke SUGII, Kazuki YOSHIMURA
  • Patent number: 10718304
    Abstract: It is prevented that residual fuel left in the vicinity of an injection nozzle outlet is carbonized to cause adherence of the carbonized fuel as deposit and changing of a spray pattern or an injection flow rate. A fuel injection valve includes a seat portion on which a valve body is seated and a seat portion in which an injection hole for injecting fuel downstream from the seat portion is formed, in which a concave surface denting in a direction opposite to a fuel injecting direction is formed on an outer peripheral side away from the injection hole at an end face located downstream of the seat member, and the concave surface is formed such that a material surface in an outer peripheral region has a larger wettability for the fuel than in an inner peripheral region.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 21, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Eiji Ishii, Kazuki Yoshimura, Taisuke Sugii
  • Patent number: 10704518
    Abstract: A spark-ignition direct fuel injection valve includes, at least, a seat member provided with a fuel injection hole and a valve seat and a valve body which controls fuel injection from the injection hole by contacting and separating from the valve seat. In the spark-ignition direct fuel injection valve: the injection hole has an injection hole inlet which is open inwardly of the seat member and an injection hole outlet which is open outwardly of the seat member; an opening edge of the injection hole inlet has a first round-chamfered portion formed on an upstream side with respect to a fuel flow toward the injection hole inlet; and an extending length (L) of the injection hole does not exceed three times a hole diameter (D) of the injection hole.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: July 7, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshihito Yasukawa, Kiyotaka Ogura, Takao Miyake, Eiji Ishii, Motoyuki Abe, Tohru Ishikawa
  • Publication number: 20200182212
    Abstract: Provided is a fuel injection valve which can be easily processed and can realize sufficient atomization while suppressing spreading of spray.
    Type: Application
    Filed: September 1, 2017
    Publication date: June 11, 2020
    Inventors: Mitsuhiro MATSUZAWA, Kazuki YOSHIMURA, Eiji ISHII, Akihiro YAMAZAKI, Takahiro SAITO, Nobuaki KOBAYASHI
  • Patent number: 10677208
    Abstract: Provided is a fuel injector that is capable of reducing penetration. The fuel injector of the present invention includes a valve body having a valve body side seat surface, a valve seat side seat surface that abuts on the valve body side seat surface, and an injection hole that is provided downstream of a position at which the valve body side seat surface abuts on the valve seat side seat surface. The valve body has a projection that is formed from the valve body side seat surface toward the injection hole, and the projection is formed to be smaller in a direction of fuel flow between seats than a radius of an upstream opening surface of the injection hole.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: June 9, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tomoyuki Hosaka, Eiji Ishii, Yoshihiro Sukegawa, Taisuke Sugii, Kazuki Yoshimura, Kazuhiro Oryoji, Masayuki Saruwatari
  • Publication number: 20200170196
    Abstract: Objects of the present invention are to provide a film for an agricultural greenhouse that can maintain a CO2 concentration necessary for the photosynthesis of plants even when ventilation is not performed and to provide an agricultural greenhouse using the film. The film for an agricultural greenhouse of the present invention is a cellulose film which contains a cellulose acylate resin and has an equilibrium moisture content of 4% to 8% at a temperature of 25° C., a relative humidity of 80% and a thickness of 60 to 200 ?m.
    Type: Application
    Filed: February 7, 2020
    Publication date: June 4, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Shogo KATANO, Yui OMI, Kimito WASHIYA, Akihiro IKEYAMA, Eiji ISHII
  • Patent number: 10595472
    Abstract: Objects of the present invention are to provide a film for an agricultural greenhouse that can maintain a CO2 concentration necessary for the photosynthesis of plants even when ventilation is not performed and to provide an agricultural greenhouse using the film. The film for an agricultural greenhouse of the present invention is a cellulose film which contains a cellulose acylate resin and has an equilibrium moisture content of 4% to 8% at a temperature of 25° C., a relative humidity of 80% and a thickness of 60 to 200 ?m.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: March 24, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Shogo Katano, Yui Omi, Kimito Washiya, Akihiro Ikeyama, Eiji Ishii
  • Publication number: 20200032755
    Abstract: Movement of a valve body in an unspecified direction due to a minute clearance existing between a valve body and a guide changes the flow of fuel flowing into injection holes every injection, thereby leading to variation in respective beams of spray from the injection holes and the flow rate of injection between the injection holes. Provided are a valve body that sits on or separates from a seat; a plurality of guides that slidably guide the valve body; and a plurality of flow channel portions each formed between each guide adjacent circumferentially. Then, among the plurality of flow channel portions, the cross-sectional area of the first flow channel portion on a horizontal plane orthogonal to the central axis of the valve body is smaller than each of the cross-sectional areas of the remaining flow channel portions on the horizontal plane.
    Type: Application
    Filed: January 30, 2018
    Publication date: January 30, 2020
    Applicant: HITACHI, LTD.
    Inventors: Eiji ISHII, Kazuki YOSHIMURA, Yoshihito YASUKAWA
  • Publication number: 20190360445
    Abstract: It is possible to prevent a change in the spray pattern and injection flow rate and an increase of particulate matters in the exhaust gas due to residual fuel left in the vicinity of an injection hole outlet carbonized and adhered as deposit. A fuel injection valve includes a displaceable valve body, a valve seat surface that touches the valve body, and an injection hole cup including at least one injection hole formed on the valve body's tip end side and beyond where the valve seat surface touches the valve body. The injection hole cup includes a low lipophilic portion and a lipophilic portion formed on the injection hole cup's surface, the lipophilic portion is formed inside at least a part of a range in which the low lipophilic portion is formed, and at least one portion of the low lipophilic portion is connected to the injection hole's end portion.
    Type: Application
    Filed: November 24, 2017
    Publication date: November 28, 2019
    Applicant: HITACHI, LTD.
    Inventors: Taisuke SUGII, Eiji ISHII, Kazuki YOSHIMURA, Tomoyuki HOSAKA
  • Publication number: 20190211763
    Abstract: Provided is a fuel injection device and a control unit therefor which enable reliable ignition even in a case where fuel pressure is low immediately after starting an engine. In the control unit for controlling an injector injecting fuel into an internal combustion engine, a plurality of injectors is provided in the internal combustion engine, a static flow rate of a first injector is configured to be smaller than a static flow rate of a second injector. In a case where a fuel pressure of fuel supplied by a pressurizing unit is lower than a set value set lower than a fuel pressure in warming up, an injection ratio of the first injector is controlled to increase according to a difference between a fuel pressure of fuel from the pressurizing unit and a fuel pressure in warming up.
    Type: Application
    Filed: August 2, 2017
    Publication date: July 11, 2019
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Tomoyuki HOSAKA, Taisuke SUGII, Eiji ISHII, Yoshihiro SUKEGAWA, Masayuki SARUWATARI
  • Patent number: 10344726
    Abstract: The purpose of the present invention is to provide a fuel injection valve that can achieve sufficient atomization even if the spray angle is narrow.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: July 9, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kazuki Yoshimura, Mitsuhiro Matsuzawa, Eiji Ishii, Akihiro Yamazaki, Takahiro Saito, Nobuaki Kobayashi
  • Publication number: 20190063392
    Abstract: It is prevented that residual fuel left in the vicinity of an injection nozzle outlet is carbonized to cause adherence of the carbonized fuel as deposit and changing of a spray pattern or an injection flow rate. A fuel injection valve includes a seat portion on which a valve body is seated and a seat portion in which an injection hole for injecting fuel downstream from the seat portion is formed, in which a concave surface denting in a direction opposite to a fuel injecting direction is formed on an outer peripheral side away from the injection hole at an end face located downstream of the seat member, and the concave surface is formed such that a material surface in an outer peripheral region has a larger wettability for the fuel than in an inner peripheral region.
    Type: Application
    Filed: December 16, 2016
    Publication date: February 28, 2019
    Inventors: Eiji ISHII, Kazuki YOSHIMURA, Taisuke SUGII
  • Publication number: 20190040814
    Abstract: A fuel injection valve capable of forming a homogeneous air-fuel mixture in homogeneous combustion at a low engine speed and a control device thereof are provided. According to the present invention, a fluid injection valve that is configured separately from a fuel injection valve and has a function of injecting a fluid is provided and a control device of the fuel injection valve includes a control unit that performs control such that fuel is injected from the fuel injection valve and then controls the fluid injection valve such that the fluid is injected from the fluid injection valve and the fuel injected from the fuel injection valve is stirred.
    Type: Application
    Filed: November 16, 2016
    Publication date: February 7, 2019
    Inventors: Tomoyuki HOSAKA, Taisuke SUGII, Eiji ISHII, Yoshihiro SUKEGAWA, Masayuki SARUWATARI, Kazuhiro ORYOJI
  • Publication number: 20180363615
    Abstract: A spark-ignition direct fuel injection valve includes, at least, a seat member provided with a fuel injection hole and a valve seat and a valve body which controls fuel injection from the injection hole by contacting and separating from the valve seat. In the spark-ignition direct fuel injection valve: the injection hole has an injection hole inlet which is open inwardly of the seat member and an injection hole outlet which is open outwardly of the seat member; an opening edge of the injection hole inlet has a first round-chamfered portion formed on an upstream side with respect to a fuel flow toward the injection hole inlet; and an extending length (L) of the injection hole does not exceed three times a hole diameter (D) of the injection hole.
    Type: Application
    Filed: June 19, 2018
    Publication date: December 20, 2018
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Yoshihito YASUKAWA, Kiyotaka OGURA, Takao MIYAKE, Eiji ISHII, Motoyuki ABE, Tohru ISHIKAWA