Patents by Inventor Masahiro Makino
Masahiro Makino 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: 9200573Abstract: A rotation angle sensor detects a rotation angle of a pedal by its first Hall IC and second Hall IC, which are disposed between two magnets and output voltages varying with magnetic flux changes. When the rotation angle of the pedal is an accelerator full-closure rotation angle or more, the first Hall IC generates a first voltage V1, which is twice as large as a second voltage V2 of the second Hall IC. When the rotation angle is less than 0°, the first Hall IC fixes the first voltage irrespective of the rotation angle. An ECU determines that the rotation angle is abnormal indicating that the pedal rotates in an accelerator closing direction beyond an accelerator full-closure position, when an output difference G1 calculated as G1=V1/2?V2 is more than a predetermined value.Type: GrantFiled: July 19, 2013Date of Patent: December 1, 2015Assignee: DENSO CORPORATIONInventors: Hidekazu Watanabe, Masahiro Makino, Takehiro Saito
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Publication number: 20150338790Abstract: An image forming apparatus includes: a belt; a first image forming unit including a first drum; a second image forming unit including a second drum; a contact-and-separation portion; an executing portion; and a controller for rotating the second drum by a predetermined angle so that when a cycle of an operation is to be repeated N times, a position of the second drum contacting the belt in an (N?1)th cycle differs from a position of the second drum contacting the belt in an Nth cycle, the cycle including receiving the image data in a state that the belt and the first and second drums are at rest and in a stand-by state that the image forming apparatus waits for an input of the image data in the first state, executing the image forming operation, and then returning the image forming apparatus to the stand-by state.Type: ApplicationFiled: May 18, 2015Publication date: November 26, 2015Inventors: Masahiro MAKINO, Masami Hano
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Patent number: 9152166Abstract: A first coil spring urges a shaft in an accelerator closing direction. A support member has a space, in which a first center line of the first coil spring is convexly curved when the shaft is rotated in an accelerator opening direction. The first center line is straight or is convexly curved toward the space when the limiting portion contacts the support member.Type: GrantFiled: October 3, 2013Date of Patent: October 6, 2015Assignee: DENSO CORPORATIONInventors: Takehiro Saito, Masahiro Makino
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Publication number: 20150275776Abstract: A pedal spring urges a pedal spring receiving portion to rotate a manipulation member in an accelerator closing direction. The pedal spring has an end portion that contacts a first contact surface of a front segment. A hysteresis spring urges a hysteresis spring receiving portion, which is engaged with the manipulation member, in the accelerator closing direction. The hysteresis spring has an end portion that contacts a second contact surface of the front segment. A step surface is formed between the first contact surface and the second contact surface to limit movement of the end portion of the hysteresis spring.Type: ApplicationFiled: March 24, 2015Publication date: October 1, 2015Inventors: Takehiro SAITO, Masahiro MAKINO, Hiroshi SAJI
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Publication number: 20150267623Abstract: Each of a cross sectional shape of a contacting portion of a stopper arm and a cross sectional shape of an outer peripheral surface of a pedal shaft is formed in a circular shape, wherein a curvature radius is equal to each other. Each of a cross sectional shape of a stopper surface of a supporting body and a cross sectional shape of an inner peripheral surface of a bearing portion is formed in a circular shape, wherein a curvature radius is equal to each other. A distance between a center of a first virtual circle formed by the contacting portion and a center axis of the pedal shaft is made to be equal to a distance between a center of a second virtual circle formed by the stopper surface and a center axis of the bearing portion. An angle of the stopper arm with respect to the supporting body is not changed, even when the center axis of the pedal shaft is displaced with respect to center axis of the bearing portion.Type: ApplicationFiled: June 10, 2015Publication date: September 24, 2015Inventors: Masahiro OOYA, Masahiro MAKINO, Takehiro SAITO
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Patent number: 9142944Abstract: Disclosed is a case for an electric junction box capable of preventing water that hits onto and bounds from a projection from invading into the case. The case for the electric junction box includes a synthetic resin made case main body, an upper cover, and a lower cover. Adjacent to a part where the case main body and the upper cover are joined a bracket for fixing car body that projects from an outer face of the case main body is disposed. The bracket is provided with a plurality of insertion holes for draining water. The plurality of insertion holes is also disposed throughout the bracket. In such the case, the water blown to the bracket falls down, without bounding, through the insertion holes, and thus making it possible to prevent the water from invading into the case.Type: GrantFiled: November 21, 2013Date of Patent: September 22, 2015Assignee: Yazaki CorporationInventors: Masahiro Makino, Kouji Ueyama
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Publication number: 20150261115Abstract: Non-uniform charged potential of a surface of a photosensitive member is suppressed even when a temperature of a charging member newly mounted to an image forming apparatus by exchange is lower than a temperature inside the image forming apparatus. The image forming apparatus includes the photosensitive member, a charge portion, an applying portion for applying a charging bias voltage to the charge portion, a toner image forming portion for forming a toner image to the photosensitive member, a transfer portion, a fixing portion, a first casing accommodating them, a second casing having a recording material accommodating portion for accommodating a recording material.Type: ApplicationFiled: May 15, 2015Publication date: September 17, 2015Inventors: Masami HANO, Masahiro Makino
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Publication number: 20150247466Abstract: At a supporting member, an angle between an imaginary extension plane of an outer surface of a first partition wall and an imaginary extension plane of an upper surface of a pedal arm is one of an obtuse angle and a right angle. An angle between an imaginary extension plane of an outer surface of a third partition wall and an imaginary extension plane of a lower surface of the pedal arm is one of an obtuse angle and a right angle.Type: ApplicationFiled: May 15, 2015Publication date: September 3, 2015Inventors: Takehiro SAITO, Masahiro MAKINO
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Patent number: 9106007Abstract: An electrical junction box includes: a case main body to which a bolt is attached; a terminal of which one end is provided with a bolt insertion portion, of which the other end is provided with a wire connection portion, and of which the center is provided with a bent portion bent at right angle; two electric wires connected to the wire connection portion; and a side cover to which the terminal is attached. When the side cover is mounted on one side surface of the case main body, the bolt is inserted into the bolt insertion portion. The side cover is provided with a wire fixing piece having an arc-like sectional shape and extended along the one electric wire. The two electric wires are wound together with the wire fixing piece by a tape, and fixed to the wire fixing piece.Type: GrantFiled: November 22, 2013Date of Patent: August 11, 2015Assignee: Yazaki CorporationInventors: Masahiro Makino, Kouji Ueyama
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Patent number: 9081408Abstract: Each of a cross sectional shape of a contacting portion of a stopper arm and a cross sectional shape of an outer peripheral surface of a pedal shaft is formed in a circular shape, wherein a curvature radius is equal to each other. Each of a cross sectional shape of a stopper surface of a supporting body and a cross sectional shape of an inner peripheral surface of a bearing portion is formed in a circular shape, wherein a curvature radius is equal to each other. A distance between a center of a first virtual circle formed by the contacting portion and a center axis of the pedal shaft is made to be equal to a distance between a center of a second virtual circle formed by the stopper surface and a center axis of the bearing portion. An angle of the stopper arm with respect to the supporting body is not changed, even when the center axis of the pedal shaft is displaced with respect to center axis of the bearing portion.Type: GrantFiled: March 4, 2014Date of Patent: July 14, 2015Assignee: DENSO CORPORATIONInventors: Masahiro Ooya, Masahiro Makino, Takehiro Saito
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Patent number: 9083165Abstract: Provided is an electric junction box which prevents highly-pressured water invading into a case from blowing to components in the case. The electric junction box includes a case including a frame to which a plurality of components is to be attached, a lower cover arranged to be attached to the frame. The frame includes a first side wall. The lower cover includes a second side wall and a flange. An upper end of the second side wall is positioned inside the first side wall, and a lower end of the first side wall abuts onto the flange. An outer face of the second side wall above the flange includes a parallel face and a tapered face. The parallel face has a length of 3 mm or more, and the tapered face has a length of 3 mm or more.Type: GrantFiled: November 25, 2013Date of Patent: July 14, 2015Assignee: Yazaki CorporationInventors: Masahiro Makino, Kouji Ueyama
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Publication number: 20150176505Abstract: A pedal-side rotating member is composed of a boss portion rotatably supported by a pedal shaft, a spring holding portion for holding one end of a return spring, a stopper arm being operatively in contact with an inner wall surface of a supporting body, and a mechanically-weaker portion, wherein the boss portion, the spring holding portion, the stopper arm and the mechanically-weaker portion are integrally formed as one unit. The spring holding portion is so configured as to be broken away from the boss portion at the mechanically-weaker portion, if an acting force larger than a predetermined value is applied to the stopper arm when the rotating member is rotated in a direction to an acceleration fully-closed position. A broken piece is held at a position inside of the supporting body, so that rotation of the boss portion is not adversely affected by the broken piece.Type: ApplicationFiled: December 22, 2014Publication date: June 25, 2015Inventors: Pham Van VIET, Takehiro SAITO, Masahiro MAKINO
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Patent number: 9066423Abstract: An electrical junction box includes a box body in which electrical parts are mounted and that has a water draining hole provided at a bottom wall part of the box body and a waterproof wall that is provided inside the box body along a periphery of an opening of the water draining hole. The waterproof wall includes a spherical cover wall part standing from the periphery of the water draining hole to cover the water draining hole with an inner spherical surface, and a draining opening part formed at a portion of the spherical cover wall part to allow water exist in the box body to drain to the outside of the box body through the water draining hole.Type: GrantFiled: June 6, 2013Date of Patent: June 23, 2015Assignee: Yazaki CorporationInventors: Masahiro Makino, Takanori Kawai, Yoshiyuki Ishihara
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Publication number: 20150160579Abstract: An image forming apparatus includes a corona charger configured to charge a photosensitive member surface, an exposure device configured to expose the photosensitive member surface to form an electrostatic image, a developing device configured to develop the electrostatic image with toner to form a toner image, and an execution unit configured to execute a first mode for developing an electrostatic image formed by the exposure device to form a toner image, transferring the toner image onto a recording material, and outputting it, and a second mode for transferring a plurality of toner images formed without substantially forming an electrostatic image using the exposure device onto a recording material as a plurality of adjustment toner images for adjusting a distance between the charger and the photosensitive member surface in a longitudinal direction of the charger, and outputting the plurality of adjustment toner images having average densities different from each other.Type: ApplicationFiled: December 3, 2014Publication date: June 11, 2015Inventors: Masami Hano, Masahiro Makino
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Patent number: 9038498Abstract: An accelerator pedal is supported by a support member. A biasing member biases the accelerator pedal to the full close position. A resistance application unit increases a frictional force to increase a rotational resistance applied to the accelerator pedal, as a rotation angle of the accelerator pedal increases. A slidable portion is mounted to the support member and slidable on the accelerator pedal. A first latch portion and a second latch portion define an interspace therebetween in a rotational direction. The support member includes a rotation restrictive projection fitted between the first latch portion and the second latch portion.Type: GrantFiled: January 13, 2014Date of Patent: May 26, 2015Assignee: DENSO CORPORATIONInventors: Yoshinori Inuzuka, Masahiro Makino
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Patent number: 9017082Abstract: There is provided an electrical junction box which can prevent water from entering from an insertion portion for the long term and which can be assembled easily. The electrical junction box includes a frame, a lower cover and an insertion portion through which a bundle of electric wires is passed. The insertion portion includes an insertion portion first divided piece having a semicircular cross-section and integrally formed with the frame and an insertion portion second divided piece having a semicircular cross-section and integrally formed with the lower cover via a hinge portion. In an unloaded condition, the insertion portion second divided piece is positioned at a location farthest from the insertion portion first divided piece. The divided pieces are provided with binding band insertion portions through which a binding band is passed.Type: GrantFiled: November 22, 2013Date of Patent: April 28, 2015Assignee: Yazaki CorporationInventors: Masahiro Makino, Kouji Ueyama
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Patent number: 9003664Abstract: A shaft material integrally having a shaft portion and a flange portion is formed by a forging process. The end face of the shaft portion of the shaft material and the end face of the flange portion on the opposite side of the shaft portion are ground relative to the corrected face, and the outer circumferential surface of the shaft material is ground relative to the end faces. This renders the cylindricity of the radial bearing faces formed on the outer periphery of the shaft portion of the produced shaft member to be 3 ?m or lower. Moreover, a shaft material integrally having the shaft portion and flange portion is formed, while simultaneously thrust hydrodynamic groove regions are formed on both end faces of the flange portion. After the forging process, radial hydrodynamic groove regions are formed on the outer circumferential surface of the shaft portion.Type: GrantFiled: May 31, 2011Date of Patent: April 14, 2015Assignees: NTN Corporation, Fukui Byora Co., Ltd.Inventors: Nobuyoshi Yamashita, Hideaki Kubota, Natsuhiko Mori, Keiji Nagasaki, Masahiro Makino
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Patent number: 9000297Abstract: An electric junction box 1 includes: a case 4; a tubular guide portion 5 projected from the case 4, and guiding a harness 6 out of the case 4. The guide portion 5 is divided to a pair of gutter-shaped portions 51, 52. Each of the gutter-shaped portions 51, 52 is composed of a bottom wall 53, 54 and a pair of vertical walls 55, 56 extended from both sides of the bottom wall 53, 54 in a circumferential direction Y2. An elastically deformable hinge 57 is provided between the gutter-shaped portion 52 and the case 4 and configured to allow the gutter-shaped portion 52 to be moved away from or close to the gutter-shaped portion 51. The vertical walls 55, 56 of the pair of gutter-shaped portions 51, 52 are overlapped with each other in a radial direction.Type: GrantFiled: September 29, 2011Date of Patent: April 7, 2015Assignee: Yazaki CorporationInventors: Masahiro Makino, Kazuyoshi Fujishiro, Shouta Yamaguchi, Koki Sato, Takeshi Onoda
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Patent number: 8984986Abstract: A pedal boss, to which an accelerator pedal is fixed, has a projection-receiving space, which circumferentially extends on a circumferential side of a closing-side end wall in an accelerator-opening direction and receives a projection. When the pedal boss is rotated in an accelerator-closing direction, the pedal boss is rotatable to an accelerator-full-closing position of the pedal boss without being stopped by the projection through engagement with the projection regardless of a rotational position of the projection.Type: GrantFiled: November 29, 2012Date of Patent: March 24, 2015Assignee: Denso CorporationInventors: Yoshinori Inuzuka, Masahiro Makino
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Patent number: 8981219Abstract: An electrical junction box includes an upper box section having an opened lower part, and a lower box section whose upper part is open and is mounted to the lower part of the upper box section, wherein the lower box section includes an abutment protrusion part which protrudes from an outer surface of the lower box section and has an abutment surface that abuts against an edge surface of the lower part of the upper box section when the lower box section is mounted to the upper box section. The abutment protrusion part includes an inclined surface at a place where the abutment protrusion part further extends outwards at least than an outer surface of the upper box section in a direction parallel with the abutment surface, the inclined surface connecting to the abutment surface and being inclined downwards from the abutment surface.Type: GrantFiled: June 6, 2013Date of Patent: March 17, 2015Assignee: Yazaki CorporationInventors: Masahiro Makino, Takanori Kawai, Yoshiyuki Ishihara