Patents by Inventor Michio Tsukamoto

Michio Tsukamoto 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: 8939623
    Abstract: Disclosed is a projection lens that is disposed in front of a first semiconductor light emitting device and configured to irradiate light incident from the rear side to the front side. A first reflector reflects a part of the light emitted from the first semiconductor light emitting device to converge on the rear side of the projection lens. A light guide member is disposed across the front side of the projection lens and configured to emit the light incident from the second semiconductor light emitting device to a predetermined direction. A second reflector reflects a part of the light reflected by the first reflector toward the projection lens. The light reflected by the second reflector to be incident on the projection lens is emitted from the projection to avoid the light guide member.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: January 27, 2015
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Michio Tsukamoto
  • Publication number: 20150011344
    Abstract: A belt type continuously variable transmission device includes an actuator that moves a moveable sheave member of a drive pulley which is a one-side pulley in an axial direction. The actuator includes a moveable feed member, a gear case, and an electric motor. The moveable feed member includes an inner tube section in which a moveable-side feed screw is provided, an outer tube section in which an outer gear is provided, and a lid section. The gear case has a fixed tube section in which a fixed-side feed screw is provided, and an outer cover. The electric motor drives a motor-side gear that intermeshes with the outer gear. The outer cover has an opening into which the outer tube section is inserted and that proximately opposes an outer circumferential surface of the outer tube section.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 8, 2015
    Inventors: TOMOYUKI EBIHARA, Tatsuya Kamada, Michio Tsukamoto, Koji Iwaki
  • Publication number: 20140235382
    Abstract: A driving-side pulley includes a cam mechanism that presses a movable sleeve in a first direction by utilizing a relative rotation of the movable sleeve in the normal direction with respect to an axis-line-direction fixed member, the first direction being a direction that has a pressing surface pressed against a corresponding side surface of a belt.
    Type: Application
    Filed: January 28, 2014
    Publication date: August 21, 2014
    Applicant: KANZAKI KOKYUKOKI MFG. CO., LTD.
    Inventors: Michio TSUKAMOTO, Takaya Inaoka
  • Patent number: 8801251
    Abstract: A vehicular lamp has a light source unit having an LED and an optical element that performs light distribution control for directing light from the LED in a predetermined direction, a heat sink to which the light source unit is attached, and a lamp chamber in which the light source unit is disposed. The LED is an LED module formed by installing an LED chip on a power supply circuit board. The LED module is installed on a circuit board installation portion of the heat sink, and an attachment, which has a frame shape a size larger than the LED module and has a circuit board retaining portion at a center open portion of the attachment, is attached and fixed to the heat sink by a fixing member, whereby the LED module is held between the attachment and the circuit board installation portion.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: August 12, 2014
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Takeshi Ohmi, Takashi Matsunaga, Michio Tsukamoto
  • Publication number: 20140100078
    Abstract: A brake system is provided for a vehicle equipped with a continuously variable belt transmission (hereafter a “CVT”) having a CVT input shaft and a CVT output shaft. The CVT functions as a clutch-disengagement action for isolating rotation of the CVT output shaft from the CVT input shaft when a rotary speed of the CVT input shaft is reduced to a certain, level. The vehicle is equipped with a prime mover driving the CVT input shaft so that an output rotary speed of the prime mover defines the rotary speed of the CVT input shaft. The vehicle includes an accelerator manipulator for controlling the output rotary speed of the prime mover. The brake system can cause a resistance against the rotation of the CVT output shaft using the accelerator manipulator to reduce, the output rotary speed of the prime mover to make the CVT function as the clutch-disengagement action.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 10, 2014
    Applicant: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Michio Tsukamoto, Masaru Iida
  • Publication number: 20140031155
    Abstract: The present invention provides a driven-side pulley including a fixed sheave supported by a driven shaft that is relatively rotatable around an axis line and immovable along the axis line, a movable sheave supported by the driven shaft that is relatively rotatable around the axis line and movable along the axis line, a spider supported by the driven shaft that is relatively non-rotatable around the axis line and immovable along the axis line, a biasing member that presses the movable sheave in a direction toward the fixed sheave, a main torque-cam mechanism that presses the movable sheave in the axis line in accordance with a relative difference in a rotational angle between the spider and the movable sheave, and a sub torque-cam mechanism that presses the movable sheave in the axis line in accordance with a relative difference in a rotational angle between the fixed sheave and the movable sheave.
    Type: Application
    Filed: July 26, 2013
    Publication date: January 30, 2014
    Applicant: KANZAKI KOKYUKOKI MFG CO., LTD.
    Inventors: Michio TSUKAMOTO, Takaya Inaoka
  • Publication number: 20130343074
    Abstract: Disclosed is a projection lens that is disposed in front of a first semiconductor light emitting device and configured to irradiate light incident from the rear side to the front side. A first reflector reflects a part of the light emitted from the first semiconductor light emitting device to converge on the rear side of the projection lens. A light guide member is disposed across the front side of the projection lens and configured to emit the light incident from the second semiconductor light emitting device to a predetermined direction. A second reflector reflects a part of the light reflected by the first reflector toward the projection lens. The light reflected by the second reflector to be incident on the projection lens is emitted from the projection to avoid the light guide member.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 26, 2013
    Inventor: Michio TSUKAMOTO
  • Publication number: 20130314934
    Abstract: A vehicular lamp has a light source unit having an LED and an optical element that performs light distribution control for directing light from the LED in a predetermined direction, a heat sink to which the light source unit is attached, and a lamp chamber in which the light source unit is disposed. The LED is an LED module formed by installing an LED chip on a power supply circuit board. The LED module is installed on a circuit board installation portion of the heat sink, and an attachment, which has a frame shape a size larger than the LED module and has a circuit board retaining portion at a center open portion of the attachment, is attached and fixed to the heat sink by a fixing member, whereby the LED module is held between the attachment and the circuit board installation portion.
    Type: Application
    Filed: July 30, 2013
    Publication date: November 28, 2013
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi Ohmi, Takashi Matsunaga, Michio Tsukamoto
  • Patent number: 8579486
    Abstract: A vehicular headlamp apparatus includes: a lamp body; a translucent cover having a slanted portion; and a lamp unit. A semiconductor light-emitting element is mounted on a mounting surface so that its irradiation axis intersects with lamp unit's optical axis. Reflector's reflective surface reflects light from the semiconductor light-emitting element toward a vehicle front. One end of the reflective surface is located on a vehicle rear side of the light-emitting element. The other end protrudes toward a vehicle front from a front side end of the mounting portion. The reflective surface has a portion protruding toward the vehicle front from the front side end to face the slanted portion. Within a light distribution pattern, rays of light reflected by first area, second area adjacent to the first area and third area on the reflective surface respectively form a horizontal cut-off line, an oblique cut-off line and a diffusion portion.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: November 12, 2013
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Michio Tsukamoto
  • Patent number: 8523416
    Abstract: A vehicular lamp has a light source unit having an LED and an optical element that performs light distribution control for directing light from the LED in a predetermined direction, a heat sink to which the light source unit is attached, and a lamp chamber in which the light source unit is disposed. The LED is an LED module formed by installing an LED chip on a power supply circuit board. The LED module is installed on a circuit board installation portion of the heat sink, and an attachment, which has a frame shape a size larger than the LED module and has a circuit board retaining portion at a center open portion of the attachment, is attached and fixed to the heat sink by a fixing member, whereby the LED module is held between the attachment and the circuit board installation portion.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: September 3, 2013
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Takeshi Ohmi, Takashi Matsunaga, Michio Tsukamoto
  • Patent number: 8360626
    Abstract: A lamp unit includes a projection lens, a light emitting device disposed such that a light emitting axis of the light emitting device is oriented upward, a reflector disposed to cover light emitted from the light emitting device and to reflect the light toward the projection lens, a first shade configured and disposed to partially block the light reflected by the reflector, and a second shade. The first shade includes a light cutting edge configured to form a cutoff line along an upper edge of a light distribution pattern, and an auxiliary reflecting surface extending rearward from the light cutting edge and configured to partially reflect, toward the projection lens, the light reflected by the reflector. The second shade is arranged to extend from a front edge of the reflector toward the auxiliary reflecting surface.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: January 29, 2013
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Michio Tsukamoto
  • Publication number: 20120140505
    Abstract: Disclosed is a vehicular headlamp which includes a lamp unit placed in a lamp unit outer case constituted by an outer cover and a lamp housing. The lamp unit includes a light emitting diode provided as a light source; a circuit substrate mounted with the light emitting diode and having a connection terminal for supplying power to the light emitting diode; a projection lens configured to project light emitted from the light emitting diode and irradiate the projected light forwardly; and a cover member placed to surround the light emitting diode and include a colored part of which an inner peripheral surface is formed as an incident surface, on which a part of the light emitted from the light emitting diode is incident, and in which a predetermined color other than a yellow color is given to a surface other than the incident surface.
    Type: Application
    Filed: November 28, 2011
    Publication date: June 7, 2012
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Michio TSUKAMOTO
  • Publication number: 20120007506
    Abstract: A vehicular lamp has a light source unit having an LED and an optical element that performs light distribution control for directing light from the LED in a predetermined direction, a heat sink to which the light source unit is attached, and a lamp chamber in which the light source unit is disposed. The LED is an LED module formed by installing an LED chip on a power supply circuit board. The LED module is installed on a circuit board installation portion of the heat sink, and an attachment, which has a frame shape a size larger than the LED module and has a circuit board retaining portion at a center open portion of the attachment, is attached and fixed to the heat sink by a fixing member, whereby the LED module is held between the attachment and the circuit board installation portion.
    Type: Application
    Filed: July 12, 2011
    Publication date: January 12, 2012
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi OHMI, Takashi MATSUNAGA, Michio TSUKAMOTO
  • Patent number: 7993043
    Abstract: A vehicle lamp, which is configured to irradiate infrared light in a vehicle forward direction, includes: a projection lens disposed along an optical axis extending in a lamp backward and forward direction; and first and second light source units disposed in the rear of the projection lens. The first light source unit includes: a first light emitting element which is disposed in the rear of a rear focal point of the projection lens and emits the infrared light; and a first reflector which reflects the infrared light toward the optical axis in a lamp forward direction. An infrared light distribution pattern is formed by the infrared light which is reflected by the first reflector to pass through the projection lens. The second light source unit includes: a second light emitting element which is disposed in the rear of the rear focal point of the projection lens and emits visible light; and a second reflector which reflects the visible light toward the optical axis in a lamp forward direction.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: August 9, 2011
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Kiyoshi Sazuka, Michio Tsukamoto, Shigeyuki Watanabe
  • Publication number: 20110085347
    Abstract: A vehicular headlamp apparatus includes: a lamp body; a translucent cover having a slanted portion; and a lamp unit. A semiconductor light-emitting element is mounted on a mounting surface so that its irradiation axis intersects with lamp unit's optical axis. Reflector's reflective surface reflects light from the semiconductor light-emitting element toward a vehicle front. One end of the reflective surface is located on a vehicle rear side of the light-emitting element. The other end protrudes toward a vehicle front from a front side end of the mounting portion. The reflective surface has a portion protruding toward the vehicle front from the front side end to face the slanted portion. Within a light distribution pattern, rays of light reflected by first area, second area adjacent to the first area and third area on the reflective surface respectively form a horizontal cut-off line, an oblique cut-off line and a diffusion portion.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 14, 2011
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Michio Tsukamoto
  • Patent number: 7921956
    Abstract: A hydraulic driving vehicle comprises front and rear transaxles incorporating respective hydraulic motors, and a pump unit separated from the front and rear transaxles. The pump unit incorporates a hydraulic pump having a pump shaft. A hydraulic circuit is formed by piping between the pump unit and the front and rear transaxles so as to circulate hydraulic fluid between the hydraulic pump and the hydraulic motors. A reservoir tank of the hydraulic fluid is connected to the hydraulic circuit by piping. A first cooling fan blowing air away from the pump unit and a second cooling fan blowing air toward the pump unit are disposed oppositely to each other with respect to the pump unit and drivingly connected to the pump shaft. At least a pipe for the piping of the hydraulic circuit and the reservoir tank passes an area blown by each of the first and second cooling fans.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: April 12, 2011
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Michio Tsukamoto, Hideaki Okada
  • Publication number: 20110063868
    Abstract: A lamp unit for a vehicle headlamp is provided. The lamp unit includes a projection lens, a light emitting device disposed such that a light emitting axis of the light emitting device is oriented upward, a reflector disposed to cover light emitted from the light emitting device and to reflect the light toward the projection lens, a first shade configured and disposed to partially block the light reflected by the reflector, and a second shade. The first shade includes a light cutting edge configured to form a cutoff line along an upper edge of a light distribution pattern, and an auxiliary reflecting surface extending rearward from the light cutting edge and configured to partially reflect, toward the projection lens, the light reflected by the reflector. The second shade is arranged to extend from a front edge of the reflector toward the auxiliary reflecting surface.
    Type: Application
    Filed: September 15, 2010
    Publication date: March 17, 2011
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Michio TSUKAMOTO
  • Patent number: 7866862
    Abstract: A vehicular lamp forms a low-beam distribution pattern by combining light radiated from a first unit and a second unit. A brightness decreasing element is provided on a reflective surface of a first main reflector in a sub-unit of the first unit. Thus, for the low-beam distribution pattern formed by the first unit and the second unit, among a peripheral end portion of a cut-off line forming pattern formed by the sub unit, a low luminance portion with a partially reduced brightness is formed at the border of both right and left end sides that upwardly overlap with a portion of a diffusion area forming pattern.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: January 11, 2011
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Yusuke Nakata, Michio Tsukamoto
  • Patent number: 7815352
    Abstract: A vehicular headlamp includes a light source for illuminating light from the vehicular headlamp in an illumination direction; a swivel mechanism capable of changing the illumination direction horizontally rightward and leftward; a leveling mechanism capable of changing the illumination direction vertically upward and downward; and electronic control unit capable of controlling the swivel mechanism and the leveling mechanism so as to change the illumination direction toward an oncoming vehicle lane side during linear travel of a vehicle. A method of illumination control for a vehicular headlamp includes illuminating light from the vehicular headlamp in an illumination direction; and changing the illumination direction toward an oncoming vehicle lane side during linear travel of a vehicle.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: October 19, 2010
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Masahito Naganawa, Michio Tsukamoto
  • Patent number: 7798259
    Abstract: A working vehicle comprises: a vehicle frame; a prime mover mounted on an upper surface of a first portion of the vehicle frame; a pair of left and right transaxles juxtaposed below the vehicle frame, the left and right transaxles having respective single axles so as to individually and reversibly rotatably driving left and right drive wheels; a working device disposed below the vehicle frame; an output shaft of the prime mover extended downward from the first portion of the vehicle frame; a traveling belt transmission disposed below the vehicle frame and extended from the output shaft to the pair of left and right transaxles; a working belt transmission disposed below the vehicle frame and extended from the output shaft to the working device; a counter shaft for the traveling belt transmission extended downward from a second portion of the vehicle frame; and a pair of upper and lower pulleys provided on the counter shaft, wherein a belt looped over the lower pulley is extended from the output shaft of the pr
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: September 21, 2010
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Masaru Iida, Fumitoshi Ishino, Michio Tsukamoto, Manabu Kawakami