Patents by Inventor Kiyotaka Sakai

Kiyotaka Sakai 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: 8931585
    Abstract: The cab is situated on the body frame. The engine cover is situated in front of the cab. The engine includes the crankshaft extending in the longitudinal direction of the bulldozer. The air cleaner is situated above the engine. The air cleaner is secured to the engine cover. The duct connects the air cleaner and the engine. The duct includes the first connector and the second connector. The first connector is connected to the engine. The second connector is connected to the air cleaner. The front mounting part supports the engine on the body frame. The rear mounting part supports the engine on the body frame. The rear mounting part is situated behind and above the front mounting part.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: January 13, 2015
    Assignee: Komatsu Ltd.
    Inventors: Kiyotaka Sakai, Taisuke Mizuno, Hirokazu Asaka
  • Patent number: 8878399
    Abstract: A multi-shaft linear motor formed by a plurality of single-shaft linear motors is disclosed. Each of the single-shaft linear motors is provided with a magnetic body and an armature. Each of the single-shaft linear motors includes a base plate. The base plate has a base surface defining the moving direction, wherein the stator is fixed onto the base surface along the moving direction, and the mover is attached onto the base surface in a movable manner reciprocating along the moving direction and in opposed relation to the stator. The single-shaft linear motors are stacked in a stacking direction perpendicular to the base surface in such a way that the single-shaft linear motors are individually detachable as a unit, the base plate thereof contains the stator and the mover.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: November 4, 2014
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Naoki Hanamura, Kiyotaka Sakai
  • Publication number: 20140196279
    Abstract: An electronic component mounting apparatus includes a loading unit which loads a printed circuit board. This apparatus includes a first substrate moving unit which moves the printed circuit board, loaded by the loading unit, in the Y-direction. This apparatus includes a substrate holding unit which temporarily holds the printed circuit board moved by the first substrate moving unit. This apparatus includes a component mounting unit which mounts an electronic component on the printed circuit board. This apparatus includes a second substrate moving unit which moves the printed circuit board with the electronic component mounted thereon in the Y-direction. This apparatus includes an unloading unit which moves the printed circuit board, moved by the second substrate moving unit, in the X-direction to unload it. This invention can provide an electronic component mounting apparatus which is compact in its conveyance direction for conveying a printed circuit board.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 17, 2014
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Kiyotaka SAKAI
  • Publication number: 20140175910
    Abstract: A multi-shaft linear motor formed by a plurality of linear motors each provided with a magnetic body and an armature and adapted to produce a force causing the magnetic body and the armature to be relatively displaced along a given linear moving direction by interaction of magnetic fluxes generated between the magnetic body and the armature during an operation of supplying electric power to the armature. Each of the single-shaft linear motors includes a base plate. Base plate has a base surface defining the moving direction, wherein the stator is fixed onto the base surface along the moving direction, and the mover is attached onto the base surface in a movable manner reciprocating along the moving direction and in opposed relation to the stator. Single-shaft linear motors are stacked in a stacking direction perpendicular to the base surface such that the single-shaft linear motors are individually detachable as a unit.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Naoki HANAMURA, Kiyotaka SAKAI
  • Patent number: 8643226
    Abstract: One aspect of the present invention relates to a linear motor unit including a plurality of linear motors, each having a stator, a movable element that linearly reciprocates along the stator, and a magnetic sensor that can detect a position of the movable element, wherein the magnetic sensors of the adjacent linear motors are disposed so as to be placed in mutually different positions in a moving direction of the movable element.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: February 4, 2014
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Kiyotaka Sakai
  • Publication number: 20130277135
    Abstract: A bulldozer is equipped with a cab, a cooling device, an engine cover, an engine, and an exhaust emission control device. The cooling device is situated behind the cab. The engine cover is situated in front of the cab. The engine is situated inside the engine cover. The engine includes a crank shaft that extends in the longitudinal direction of the bulldozer. The exhaust emission control device includes a main body pipe part and a connecting pipe part connecting to the main body pipe part. The exhaust emission control device cleans the exhaust from the engine inside the main body pipe part. The main body pipe part is situated in the front of the engine. At least a portion of the main body pipe part is situated to overlap with the engine in the front view of the bulldozer.
    Type: Application
    Filed: December 13, 2012
    Publication date: October 24, 2013
    Applicant: KOMATSU LTD.
    Inventors: Kiyotaka SAKAI, Taisuke MIZUNO, Hirokazu ASAKA
  • Publication number: 20130277129
    Abstract: The cab is situated on the body frame. The engine cover is situated in front of the cab. The engine includes the crankshaft extending in the longitudinal direction of the bulldozer. The air cleaner is situated above the engine. The air cleaner is secured to the engine cover. The duct connects the air cleaner and the engine. The duct includes the first connector and the second connector. The first connector is connected to the engine. The second connector is connected to the air cleaner. The front mounting part supports the engine on the body frame. The rear mounting part supports the engine on the body frame. The rear mounting part is situated behind and above the front mounting part.
    Type: Application
    Filed: December 13, 2012
    Publication date: October 24, 2013
    Applicant: KOMATSU LTD.
    Inventors: Kiyotaka SAKAI, Taisuke MIZUNO, Hirokazu ASAKA
  • Patent number: 8368254
    Abstract: The present invention relates to a linear motor provided with a magnetic body and an armature and adapted to produce a force causing the magnetic body and the armature to be relatively displaced in a given moving direction by interaction of magnetic fluxes generated between the magnetic body and the armature during an operation of supplying electric power to the armature.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: February 5, 2013
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Naoki Hanamura, Kiyotaka Sakai
  • Patent number: 8368259
    Abstract: The invention relates to a linear motor equipped with a field element and an armature and adapted to produce a force causing the field element and the armature to be relatively displaced along a given axial direction by interaction of magnetic fluxes generated between the field element and the armature during an operation of supplying electric power to the armature.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: February 5, 2013
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Kiyotaka Sakai, Naoki Hanamura
  • Patent number: 8350419
    Abstract: The present invention relates to a linear motor provided with a magnetic body and an armature. The liner motor is adapted to produce a force causing the magnet body and the armature to be relatively displaced along a given linear moving direction by interaction of magnetic fluxes generated between the magnetic body and the armature during an operation of supplying electric power to the armature. In a typical aspect, the linear motor of the present invention comprises a movable section attached to a base plate adapted to set the moving direction on a base surface thereof, in such a movable manner as to relatively reciprocate along the moving direction with respect to the base plate. A mover is provided on the movable section and formed as one of the magnetic body and the armature.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: January 8, 2013
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Naoki Hanamura, Kiyotaka Sakai
  • Patent number: 8297398
    Abstract: A two-wheeled motor vehicle provided with a drive shaft (32) rotatably supported by a swing arm (28) rockable on a pivot shaft (27). The longitudinal center axis (32J) of the drive shaft (32) is located below a line (28C) interconnecting the pivot shaft (27) and an axle (40). The drive shaft (32) is surrounded by the swing arm (28).
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: October 30, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Taisuke Nimura, Kenji Kofuji, Kiyotaka Sakai, Saiji Suzuta, Toshiyuki Iwai, Satoshi Kogo, Eiji Toriyama
  • Patent number: 8002068
    Abstract: A motorcycle includes a swing arm, a rear wheel mounted on a leading end of the swing arm, a drive shaft disposed in the swing arm, and a final gear transmission mechanism interposed between the drive shaft and the rear wheel. The final gear transmission mechanism includes a gear case mounted on the leading end of the swing arm for supporting a rear axle; a first end bearing and a second end bearing for supporting a first end and a second end of the rear axle, respectively, a ring gear mounted on the rear axle for transmitting the rotary drive force of an engine to the rear axle; a holding portion for holding the first end of the rear axle in the axial direction of the rear axle; and a fastening member for fastening the second end bearing to the second end of the rear axle.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: August 23, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Taisuke Nimura, Kiyotaka Sakai, Kenji Kofuji, Yoshinobu Shiomi, Hidetoshi Toyoda, Yasuhiro Higashi
  • Publication number: 20110108346
    Abstract: A two-wheeled motor vehicle provided with a drive shaft (32) rotatably supported by a swing arm (28) rockable on a pivot shaft (27). The longitudinal center axis (32J) of the drive shaft (32) is located below a line (28C) interconnecting the pivot shaft (27) and an axle (40). The drive shaft (32) is surrounded by the swing arm (28).
    Type: Application
    Filed: May 12, 2009
    Publication date: May 12, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Taisuke Nimura, Kenji Kofuji, Kiyotaka Sakai, Saiji Suzuta, Toshiyuki Iwai, Satoshi Kogo, Eiji Toriyama
  • Publication number: 20110052348
    Abstract: The present invention relates to a multi-shaft linear motor formed by a plurality of linear motors each provided with a magnetic body and an armature and adapted to produce a force causing the magnetic body and the armature to be relatively displaced along a given linear moving direction by interaction of magnetic fluxes generated between the magnetic body and the armature during an operation of supplying electric power to the armature. In a typical aspect, each of the single-shaft linear motors in the present invention includes a base plate. The base plate has a base surface defining the moving direction, wherein the stator is fixed onto the base surface along the moving direction, and the mover is attached onto the base surface in a movable manner reciprocating along the moving direction and in opposed relation to the stator.
    Type: Application
    Filed: January 9, 2009
    Publication date: March 3, 2011
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Naoki Hanamura, Kiyotaka Sakai
  • Publication number: 20110025137
    Abstract: One aspect of the present invention relates to a linear motor unit including a plurality of linear motors, each having a stator, a movable element that linearly reciprocates along the stator, and a magnetic sensor that can detect a position of the movable element, wherein the magnetic sensors of the adjacent linear motors are disposed so as to be placed in mutually different positions in a moving direction of the movable element.
    Type: Application
    Filed: March 25, 2009
    Publication date: February 3, 2011
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Kiyotaka Sakai
  • Publication number: 20100307789
    Abstract: The cord has a flexible reinforcing core wire. The reinforcing core wire is formed of one or a plurality of reinforcing fibers such as aramid fibers. A plurality of (for example, three) insulated conductors are twisted together around the reinforcing core wire. The insulated conductors are respectively colored into different colors to be distinguished from each other, and include a plurality of insulated wires twisted together. Each of the insulated wires is formed of a polyurethane copper wire or the like whose conductor is insulation-coated with resin. An insulating outer coating member coats the periphery of the reinforcing core wire and the three insulated conductors. The insulating outer coating member has a substantially circular tube shape in section, and is formed of soft synthetic resin. Accordingly, the cord is reduced in diameter and weight.
    Type: Application
    Filed: September 15, 2009
    Publication date: December 9, 2010
    Applicant: SDK Company Limited
    Inventor: Kiyotaka Sakai
  • Publication number: 20100296906
    Abstract: The present invention relates to a linear motor provided with a magnetic body and an armature. The liner motor is adapted to produce a force causing the magnet body and the armature to be relatively displaced along a given linear moving direction by interaction of magnetic fluxes generated between the magnetic body and the armature during an operation of supplying electric power to the armature. In a typical aspect, the linear motor of the present invention comprises a movable section attached to a base plate adapted to set the moving direction on a base surface thereof, in such a movable manner as to relatively reciprocate along the moving direction with respect to the base plate. A mover is provided on the movable section and formed as one of the magnetic body and the armature.
    Type: Application
    Filed: January 7, 2009
    Publication date: November 25, 2010
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Naoki Hanamura, Kiyotaka Sakai
  • Publication number: 20100289345
    Abstract: The invention relates to a linear motor equipped with a field element and an armature and adapted to produce a force causing the field element and the armature to be relatively displaced along a given axial direction by interaction of magnetic fluxes generated between the field element and the armature during an operation of supplying electric power to the armature.
    Type: Application
    Filed: January 9, 2009
    Publication date: November 18, 2010
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Kiyotaka Sakai, Naoki Hanamura
  • Publication number: 20100290871
    Abstract: The present invention relates to a linear motor provided with a magnetic body and an armature and adapted to produce a force causing the magnetic body and the armature to be relatively displaced in a given moving direction by interaction of magnetic fluxes generated between the magnetic body and the armature during an operation of supplying electric power to the armature.
    Type: Application
    Filed: January 7, 2009
    Publication date: November 18, 2010
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Naoki Hanamura, Kiyotaka Sakai
  • Patent number: 7599650
    Abstract: A developer bearing member on which grooves slanting in a thrust direction of the developer bearing member cross other grooves reversely slanting relative to the thrust direction, wherein each of the grooves and the reversely slanting grooves is slanting at an angle of greater than 0° and not greater than 40°. Any two adjacent intersections of the grooves and the reversely slanting grooves in the thrust (or peripheral) direction are preferably on different levels in the peripheral (or thrust) direction. The distance between two adjacent intersections in the thrust direction is preferably from 1.3 mm to 4.8 mm. The distance between two adjacent intersections in the thrust direction is preferably from 0.38 Vd/Vi (mm) to 1.1 Vd/Vi (mm). The deviation in depth of grooves present on a 36° arc surface portion of the member is not greater than 15% of the gap between the image bearing member and the developer bearing member.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: October 6, 2009
    Assignee: Ricoh Company Limited
    Inventors: Shunji Katoh, Katsumi Masuda, Hideo Yoshizawa, Yoshio Hattori, Hideki Kimura, Kiyotaka Sakai, Kenji Nakajima, Keiichi Yoshida, Akira Azami, Yuji Suzuki