Patents by Inventor Kenji Niwa

Kenji Niwa 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: 20230313805
    Abstract: A blower with assembly performance that is improved by downsizing of a housing resulted from unitization of a blower fan and a motor is provided. In a blower including a housing configured to house the motor and the blower fan therein and to include an air intake port sucking the air flow thereinto and a tubular air exhaust port configured to exhaust out the air flow toward a front side direction, the motor and the blower fan as an assembly embedded into a motor case are housed in a main body section of a housing. A brushless DC motor is adopted as the motor, and a motor circuit board is mounted on a front side of the motor. A semiconductor switch element is mounted on the motor circuit board, and the motor is driven at 40,000 revolutions/second or more.
    Type: Application
    Filed: August 20, 2021
    Publication date: October 5, 2023
    Inventors: Tadakatsu EJIRI, Kenji NIWA, Ibuki KANDA
  • Patent number: 11353632
    Abstract: A multi-lens array according to the present disclosure includes a substrate part, a first multi-lens surface which includes a plurality of first lens surfaces, and which is provided to the substrate part, a light transmissive layer provided to the substrate part, and an antireflection layer disposed on the light transmissive layer, wherein the antireflection layer is higher in thermal conductivity than the light transmissive layer.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: June 7, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Tomoki Isomura, Kenji Niwa, Takanori Miyazawa
  • Publication number: 20210294000
    Abstract: A multi-lens array according to the present disclosure includes a substrate part, a first multi-lens surface which includes a plurality of first lens surfaces, and which is provided to the substrate part, a light transmissive layer provided to the substrate part, and an antireflection layer disposed on the light transmissive layer, wherein the antireflection layer is higher in thermal conductivity than the light transmissive layer.
    Type: Application
    Filed: March 19, 2021
    Publication date: September 23, 2021
    Inventors: Tomoki ISOMURA, Kenji NIWA, Takanori MIYAZAWA
  • Patent number: 10807648
    Abstract: A frame member is a high-tensile steel member included in a frame. The frame is a part of a body structure of a body of an automobile. The frame member includes a plate-like attachment for abutting other member of the automobile. The attachment includes a welding part configured to be welded to the other member. The welding part is thinner than other parts of the attachment.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: October 20, 2020
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Ryuzo Nishimura, Kenji Niwa, Koichi Kanda
  • Publication number: 20190002030
    Abstract: A frame member is a high-tensile steel member included in a frame. The frame is a part of a body structure of a body of an automobile. The frame member includes a plate-like attachment for abutting other member of the automobile. The attachment includes a welding part configured to be welded to the other member. The welding part is thinner than other parts of the attachment.
    Type: Application
    Filed: January 22, 2016
    Publication date: January 3, 2019
    Applicant: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Ryuzo NISHIMURA, Kenji NIWA, Koichi KANDA
  • Publication number: 20150287250
    Abstract: Presented is an EDR for storing predetermined information. The EDR is mounted to a vehicle (e.g., automobile) and includes a control unit that determines an event and controls a storage unit to store predetermined information therein. If the driver either depresses an accelerator pedal within a predetermined period after manipulating a shift lever or simultaneously manipulates the shift lever and depresses the accelerator pedal, the storage unit is controlled to store therein at least operating information on the operation of the shift lever and the accelerator pedal and traveling state information on the vehicle's traveling state. This configuration limits unnecessary increases in size of stored data even if information is stored on events that are not directly related to accidents.
    Type: Application
    Filed: June 18, 2013
    Publication date: October 8, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenji Niwa, Shinichi Takamura, Masami Kondo
  • Patent number: 8926024
    Abstract: The motorized cutter with wheels (10) comprises a motorized cutter (20) and a carriage (30). The motorized cutter (20) is equipped with an engine (24), a blade (22) rotatably driven by the engine (24), and a light-emitting unit (50) that generates laser light (52) in the same plane as the plane of rotation of the blade (22). A roadbed (90) is then cut along a line (X) drawn on the roadbed (90) by operating the motorized cutter with wheels (10) so that the line (X) is irradiated with the laser light (52). It is possible to remove the motorized cutter (20) from the carriage (30) together with the light-emitting unit (50).
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: January 6, 2015
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Yukihiro Shima, Kenji Niwa, Shinki Ohtsu, Junichi Kamimura, Mitsuhiro Sunaoshi
  • Patent number: 8655576
    Abstract: A fuel-saving drive recommendation system is mounted on a vehicle that includes a step-gear automatic transmission of which a gear is shifted in response to a gear instruction signal. The fuel-saving drive recommendation system calculates a required driving force based on an amount by which an output operating component is operated by a driver and a gear of the automatic transmission, makes determination for fuel-saving drive for the vehicle based on the required driving force and notifies the determination result. The fuel-saving drive recommendation system calculates a required driving force for performing output control on an engine and a required driving force for determining whether it is a fuel-saving drive state. A determination gear signal different from the gear instruction signal is used when the determination required driving force is calculated, and is changed to coincide with the gear instruction signal that has been changed.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: February 18, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Niwa, Hiroyuki Sawada
  • Publication number: 20130327307
    Abstract: A 2-cycle engine has: a piston reciprocably housed in a cylinder bore; an intake opening, an exhaust opening, and a scavenge opening provided in an inner peripheral wall of the cylinder bore and opened/closed by the piston; and a scavenge passage connecting the scavenge opening and a crank chamber. A valve that opens/closes the scavenge passage is provided on the scavenge passage.
    Type: Application
    Filed: January 30, 2012
    Publication date: December 12, 2013
    Applicant: HITACHI KOKI CO., LTD.
    Inventors: Kenji Niwa, Tomoya Ikeda, Shigetoshi Ishida
  • Publication number: 20120059561
    Abstract: A fuel-saving drive recommendation system is mounted on a vehicle that includes a step-gear automatic transmission of which a gear is shifted in response to a gear instruction signal. The fuel-saving drive recommendation system calculates a required driving force based on an amount by which an output operating component is operated by a driver and a gear of the automatic transmission, makes determination for fuel-saving drive for the vehicle based on the required driving force and notifies the determination result. The fuel-saving drive recommendation system calculates a required driving force for performing output control on an engine and a required driving force for determining whether it is a fuel-saving drive state. A determination gear signal different from the gear instruction signal is used when the determination required driving force is calculated, and is changed to coincide with the gear instruction signal that has been changed.
    Type: Application
    Filed: April 13, 2010
    Publication date: March 8, 2012
    Inventors: Kenji Niwa, Hiroyuki Sawada
  • Publication number: 20110303060
    Abstract: The motorized cutter with wheels (10) comprises a motorized cutter (20) and a carriage (30). The motorized cutter (20) is equipped with an engine (24), a blade (22) rotatably driven by the engine (24), and a light-emitting unit (50) that generates laser light (52) in the same plane as the plane of rotation of the blade (22). A roadbed (90) is then cut along a line (X) drawn on the roadbed (90) by operating the motorized cutter with wheels (10) so that the line (X) is irradiated with the laser light (52). It is possible to remove the motorized cutter (20) from the carriage (30) together with the light-emitting unit (50).
    Type: Application
    Filed: January 29, 2010
    Publication date: December 15, 2011
    Inventors: Yukihiro Shima, Kenji Niwa, Shinki Ohtsu, Junichi Kamimura, Mitsuhiro Sunaoshi
  • Patent number: 8032274
    Abstract: A diagnostic system for an automatic transmission is provided in which a microcomputer determines that torque that can drive the driving wheels of the vehicle is not transmitted to an output shaft of the automatic transmission when the vehicle is stopped and the ignition key is operated to the OFF position, and performs forced energization of solenoids of solenoid valves associated with respective friction devices of the transmission, while monitoring current passing through the solenoid valves. If the current monitored does not match the current for energizing any of the solenoids, the microcomputer determines that the corresponding solenoid valve is at fault. Thus, the diagnostic system appropriately determines the presence of a fault of each solenoid valve for controlling the hydraulic pressure to each friction device, with increased flexibility and freedom.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: October 4, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Niwa, Toshio Sugimura, Masayasu Mizobuchi
  • Patent number: 7874075
    Abstract: According to an aspect of the present invention, there is provided a portable cutting machine including: a housing; a motor; a cutting blade driven by the motor; a saw cover that covers the cutting blade; a base that rotatably supports the saw cover and to be brought into contact with the to-be-processed members; and a changing mechanism capable of changing the protrusion amount of the cutting blade toward the side opposite to the saw cover, wherein the changing mechanism has an adjustment guide extending from the base in the rotation direction of the saw cover and a movement restricting part for restricting the movement of the adjustment guide, and wherein the portion of the adjustment guide on the side farther from the base with respect to the movement restricting part is arranged outside of the saw cover.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: January 25, 2011
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Kenji Niwa, Teruo Imai
  • Patent number: 7866051
    Abstract: A portable cutting tool includes a saw blade for cutting a workpiece, a cutting tool main body having a motor for driving to rotate the saw blade, and a base for guiding the cutting tool main body along a surface of the workpiece. A cut depth of the saw blade projected from a lower face of the base is made to be able to be adjusted by pivoting the cutting tool main body centering on a support shaft connected to the base. The portable cutting tool is provided with a mechanism for fixing the cut depth at a preset position when the cut depth of the saw blade is gradually increased from a minimum cut depth.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: January 11, 2011
    Assignee: Hitachi Koki Co., Ltd.
    Inventor: Kenji Niwa
  • Patent number: 7861417
    Abstract: A portable electric cutting apparatus includes a housing for housing an electric motor rotating a saw blade, a saw cover attached to the housing, the saw cover having a shape to cover an upper half of an outer periphery, the saw cover including a saw blade housing portion at least partially housing the saw blade and a cylindrical portion having a substantially cylindrical shape, the cylindrical portion connecting to the housing at an end face of the cylindrical portion a base being joined to at least one of the saw cover and the housing, the base having an opening to allow the saw blade to project downwardly from a bottom face which is slidable on a cut material and a fan being driven by the electric motor, wherein a discharge passage forming member is provided with the saw cover so as to form a discharge passage by cooperating with a wall face of the saw cover.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: January 4, 2011
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hideyuki Tanimoto, Teruo Imai, Kenji Niwa, Takuya Konnai
  • Patent number: 7645187
    Abstract: An air-conditioning duct is provided inside a car console box that has an ornamental portion. The duct has an air passage for conducting conditioned air from an air conditioner to the passenger compartment. The air passage is defined by a first wall portion formed by the ornamental portion, a second wall portion opposed to the first wall portion, a third wall portion located between the first and the second wall portions, and a fourth wall portion located between the first and the second wall portions. The fourth wall portion is opposed to the third wall portion. Each wall portion has an inner surface exposed to the interior of the air passage. A pair of boundary lines are defined on the inner surface of the first wall portion at boundaries between the first wall portion and the third and fourth wall portions. A dew condensation suppression portion is provided on the inner surface of the first wall portion between the pair of the boundary lines.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: January 12, 2010
    Assignee: Toyoda Gosei Co., Ltd.
    Inventor: Kenji Niwa
  • Patent number: 7605513
    Abstract: A first coil includes a first inner-coil bundle and a first outer-coil bundle. The first outer-coil bundle is positioned radially outwardly of the first inner-coil bundle in a radial direction of a stator core. A second coil includes a second inner-coil bundle and a second outer-coil bundle. The second outer-coil bundle is positioned radially outwardly of the second inner-coil bundle. A first inner-coil end and a first outer-coil end form a gap and a groove. A second inner-coil end and a second outer-coil end also form a gap and a groove.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: October 20, 2009
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hideyuki Tanimoto, Teruo Imai, Kenji Niwa, Tomoyoshi Yokota
  • Publication number: 20090157251
    Abstract: A diagnostic system for an automatic transmission is provided in which a microcomputer determines that torque that can drive the driving wheels of the vehicle is not transmitted to an output shaft of the automatic transmission when the vehicle is stopped and the ignition key is operated to the OFF position, and performs forced energization of solenoids of solenoid valves associated with respective friction devices of the transmission, while monitoring current passing through the solenoid valves. If the current monitored does not match the current for energizing any of the solenoids, the microcomputer determines that the corresponding solenoid valve is at fault. Thus, the diagnostic system appropriately determines the presence of a fault of each solenoid valve for controlling the hydraulic pressure to each friction device, with increased flexibility and freedom.
    Type: Application
    Filed: July 31, 2007
    Publication date: June 18, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenji Niwa, Toshio Sugimura, Masayasu Mizobuchi
  • Publication number: 20090064510
    Abstract: According to an aspect of the present invention, there is provided a portable cutting machine including: a housing; a motor; a cutting blade driven by the motor; a saw cover that covers the cutting blade; a base that rotatably supports the saw cover and to be brought into contact with the to-be-processed members; and a changing mechanism capable of changing the protrusion amount of the cutting blade toward the side opposite to the saw cover, wherein the changing mechanism has an adjustment guide extending from the base in the rotation direction of the saw cover and a movement restricting part for restricting the movement of the adjustment guide, and wherein the portion of the adjustment guide on the side farther from the base with respect to the movement restricting part is arranged outside of the saw cover.
    Type: Application
    Filed: September 5, 2008
    Publication date: March 12, 2009
    Inventors: Kenji Niwa, Teruo Imai
  • Patent number: 7434321
    Abstract: A portable cutting tool includes a saw blade for cutting a workpiece, a cutting tool main body having a motor for driving to rotate the saw blade, a base for guiding the cutting tool main body along a surface of the workpiece, and an inclining mechanism for inclining the base by pivoting the base centering on a support shaft of the cutting tool main body. The inclining mechanism includes a first circular arc member provided to be contiguous to at least one of a front end portion and a rear end portion of the base, pivoted along with the base centering on the support shaft and having a first guide hole in a circular arc shape penetrated in a radius direction thereof, and includes a fixing unit for fixing a position of pivoting the base relative to the cutting tool at an arbitrary position the first guide hole.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: October 14, 2008
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Kenji Niwa, Hirokazu Yoshida