Patents by Inventor Teppei Tokizaki
Teppei Tokizaki 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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Publication number: 20180083507Abstract: A motor with a speed reducer includes a motor (4) received in a motor housing (2), a speed reducer (5) received in the motor housing (2) and that is driven by receiving power from a motor shaft of the motor (4) and that reduces rotation of a rotor boss (43) and outputs the reduced rotation, and a drive shaft (7) received in the motor housing (2), connected to an output shaft (58) of the speed reducer (5) via a transmission belt (6) and that drives a driven body, wherein the rotor boss (43) and the output shaft (58) are disposed coaxially, and the output shaft (58) and the drive shaft (7) are disposed parallel in a radial direction.Type: ApplicationFiled: April 12, 2016Publication date: March 22, 2018Inventors: Teppei Tokizaki, Satoshi Tamura, Natsumi Tamura, Hiroto Tanaka
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Publication number: 20180041078Abstract: An electric motor includes a yoke having a cylindrical section, two pairs of permanent magnets disposed at an inner circumferential surface of the cylindrical section to oppose each other, and an armature rotatably supported further inside in a radial direction than the permanent magnets, wherein at least a pair of first flat sections opposing each other in the radial direction are formed at the cylindrical section, and the permanent magnets are disposed at positions distant from the first flat sections.Type: ApplicationFiled: October 16, 2017Publication date: February 8, 2018Inventors: Yoshichika Kawashima, Teppei Tokizaki, Naoki Kojima
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Patent number: 9837776Abstract: In an electric motor, a brush holder stay (33) has an opening section through which a commutator (23) is able to be inserted in a rotary shaft direction (O1), brush holders (41) extend in the rotary shaft direction (O1) and are formed in a flat spring shape biased toward the inside in a radial direction, base end sections of the brush holders (41) are supported by the brush holder stay (33) at intervals in a circumferential direction around the rotary shaft (3), and brushes (31) are held by the front end sections of the brush holders (41).Type: GrantFiled: July 10, 2014Date of Patent: December 5, 2017Assignee: Mitsuba CorporationInventors: Teppei Tokizaki, Yoshichika Kawashima, Natsumi Tamura
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Patent number: 9831728Abstract: An electric motor includes a yoke having a cylindrical section, two pairs of permanent magnets disposed at an inner circumferential surface of the cylindrical section to oppose each other, and an armature rotatably supported further inside in a radial direction than the permanent magnets, wherein at least a pair of first flat sections opposing each other in the radial direction are formed at the cylindrical section, and the permanent magnets are disposed at positions distant from the first flat sections.Type: GrantFiled: May 25, 2012Date of Patent: November 28, 2017Assignee: Mitsuba CorporationInventors: Yoshichika Kawashima, Teppei Tokizaki, Naoki Kojima
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Publication number: 20170207686Abstract: A motor apparatus provided with a connector unit (40) to which an external connector is connected, wherein the connector unit (40) has a plurality of conductive members (64, 65, 66) arranged over a base portion (50) and a connector connecting portion (70) provided with a plug-in hole in which the external connector is plugged, wherein the conductive members (64, 65, 66) respectively include connector-side connecting portions (64a, 65a, 66a) connected to the external connector so as to face the connector connecting portion (70) from a first direction reversed to a plug-in direction of the external connector to the plug-in hole and base-side connecting portions (64b, 65b, 66b) connected to terminals or wirings provided in the base portion (50), wherein the connector-side connecting portions (64a, 65a, 66a) are respectively inserted into a plurality of insertion holes (74, 75, 76) provided at positions different from each other in a second direction intersecting the first direction, and wherein the base-side conType: ApplicationFiled: March 9, 2017Publication date: July 20, 2017Inventors: Kenji Yasumoto, Teppei Tokizaki, Shigeki Ota
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Patent number: 9712018Abstract: A wiper motor includes a reduction mechanism (26) contained in a reduction mechanism containing chamber (27) of a gear frame (21) and configured to reduce and transmit a rotation to a worm wheel (35); and a motion conversion mechanism (29) contained in a motion conversion mechanism containing chamber (30) of the gear frame (21) and configured to convert and output a rocking motion to an output shaft (28). A support surface (37) set up flush with the other end surface (35b) of the worm wheel (35) in the axial direction rotatably contained in the reduction mechanism containing chamber (27) is formed on the inner surface of the bottom wall (30a) of the motion conversion mechanism containing chamber (30). The support surface (37) is formed over the entire area facing a pinion gear (40) and the motion conversion member (41) on the bottom wall (30a) of the motion conversion mechanism containing chamber (30).Type: GrantFiled: August 24, 2011Date of Patent: July 18, 2017Assignee: Mitsuba CorporationInventor: Teppei Tokizaki
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Patent number: 9705380Abstract: An electric motor equipped with deceleration device (1) is provided with a main shaft component (200) that is formed substantially in a circular rod shape, and has one end portion (201) that is rotatably supported at a substantial center of a bottom portion (111) of a motor housing (110) and another end portion (202) that protrudes towards an outer side through an aperture in the motor housing (110), the main shaft component (200) is fixed to the motor housing (110) via the one end portion (201).Type: GrantFiled: December 10, 2012Date of Patent: July 11, 2017Assignee: Mitsuba CorporationInventors: Yuichi Nagase, Yoshichika Kawashima, Teppei Tokizaki
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Patent number: 9627939Abstract: A motor apparatus provided with a connector unit (40) to which an external connector is connected, wherein the connector unit (40) has a plurality of conductive members (64, 65, 66) arranged over a base portion (50) and a connector connecting portion (70) provided with a plug-in hole in which the external connector is plugged, wherein the conductive members (64, 65, 66) respectively include connector-side connecting portions (64a, 65a, 66a) connected to the external connector so as to face the connector connecting portion (70) from a first direction reversed to a plug-in direction of the external connector to the plug-in hole and base-side connecting portions (64b, 65b, 66b) connected to terminals or wirings provided in the base portion (50), wherein the connector-side connecting portions (64a, 65a, 66a) are respectively inserted into a plurality of insertion holes (74, 75, 76) provided at positions different from each other in a second direction intersecting the first direction, and wherein the base-side conType: GrantFiled: March 20, 2014Date of Patent: April 18, 2017Assignee: Mitsuba CorporationInventors: Kenji Yasumoto, Teppei Tokizaki, Shigeki Ota
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Publication number: 20170104395Abstract: An electric motor includes: brushes (31) that are brought into sliding contact with a commutator of an armature that is fixed to a rotation shaft and feeds electric power; a brush holder stay (33) that supports the brushes (31) via brush holders (41); noise prevention elements (110) that are electrically connected to the brushes (31); and terminals (130) and jump wires (141) that electrically connect between the brush holders (41) and the noise prevention elements (110), wherein first connection portions, which connect between the noise prevention elements (110) and the terminals (130), and second connection portions, which connect between the terminals (130) and the jump wires (141), are both disposed only on a first surface (S1) of the brush holder stay (33).Type: ApplicationFiled: May 13, 2015Publication date: April 13, 2017Inventors: Natsumi TAMURA, Tomoo IIJIMA, Teppei TOKIZAKI, Satoshi TAMURA
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Patent number: 9614422Abstract: In an electric motor apparatus including an electric motor (13), a speed-reduction mechanism (14) which transmits motive power of the electric motor (13), a housing (15) which accommodates the speed-reduction mechanism (14) and the electric motor (13), and a yoke (16a) fixed to an outer portion of the housing (15), the housing (15) is provided with a concave portion (21), a holding hole (18a), and an accommodation chamber (15a). A connector unit (25) is moved along the first direction and installed to a concave portion (21). A brush holder (26) is moved along the second direction and installed to the holding hole (18a). The speed-reduction mechanism (14) is moved along the first direction and accommodated in the accommodation chamber (15a). The yoke (16a) is moved along the second direction and fixed to the housing (15). Therefore, no restriction is imposed on the routing of an external connector connected to the connector unit (25).Type: GrantFiled: October 31, 2012Date of Patent: April 4, 2017Assignee: Mitsuba CorporationInventors: Kenji Yasumoto, Teppei Tokizaki, Shigeki Ota
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Publication number: 20160352176Abstract: An armature core (8A) includes a plurality of teeth (12) that radially extend. A plurality of coils (91), (92), and (93) are wound in a concentrated winding manner on a winding drum portion (12a) of each tooth; a winding wire (14) of a lowermost side of at least a first-layer coil is wound so as to come into close contact with a winding surface of a base end side of the winding drum portion; a second-layer coil, which is to be wound later, is wound so that at least a part of the second-layer coil overlaps the first-layer coil; and a step (12a1) as a regulating portion, which regulates the positional deviation of the winding wire of the lowermost side of the first-layer coil in an extending direction of the winding drum portion, is provided on at least a part of the winding surface for the first-layer coil on an outer periphery of the winding drum portion.Type: ApplicationFiled: March 4, 2015Publication date: December 1, 2016Inventors: Teppei Tokizaki, Akio Hoshino, Natsumi Tamura, Satoshi Tamura
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Publication number: 20160344273Abstract: In a 4-pole, 6-slot, 18-segment electric motor, one forward winding coil (91) and two reverse winding coils (92, 93) are wound on each tooth (12). When the forward winding coils are formed of coils corresponding to a U phase, a V phase, and a W phase and the reverse winding coils are formed of coils corresponding to a “?U” phase, a “?V” phase, and a “?W” phase, the coils, which correspond to a U phase, a “?W” phase, a “?W” phase, a V phase, a “?U” phase, a “?U” phase, a W phase, a “?V” phase, and a “?V” phase, are electrically connected in this order between the adjacent segments.Type: ApplicationFiled: March 5, 2015Publication date: November 24, 2016Applicants: Mitsuba Corporation, Mitsuba CorporationInventors: Natsumi Tamura, Hiroto Tanaka, Teppei Tokizaki, Satoshi Tamura
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Patent number: 9496771Abstract: An electric motor includes a yoke having a plurality of magnetic poles, a rotary shaft, an armature core (8) attached to the rotary shaft, the armature core (8) having a plurality of teeth (12) and slots (13), an armature coil (9) wound on the teeth (12) through an intensive winding method, a commutator having a plurality of segments (15) installed at the rotary shaft and disposed in a circumferential direction, a low speed brush (21a) and a high speed brush (21b) configured to supply power to the armature coil (9) via the segments (15), and a common brush (21c) commonly used in these brushes, wherein, when n is a natural number of 3 or more, a ratio of the numbers of magnetic poles, slots (13), and segments (15) is set to 2:3:3n.Type: GrantFiled: July 27, 2012Date of Patent: November 15, 2016Assignee: Mitsuba CorporationInventors: Yoshichika Kawashima, Teppei Tokizaki
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Publication number: 20160156243Abstract: A motor case 21 is positioned to a gear case 31 in the diametrical direction by diametrically-positioning projection portions 72c of a brush holder 70 by causing the motor case 21 and the gear case 31 to face each other, and an axially-positioning projection portions 72e of the brush holder 70 are pressed from the axial direction of an armature shaft 24 by a pressing flange portion 21i, so that the brush holder 70 is positioned to the gear case 31 in the axial direction. Therefore, the size and weight of the rear wiper motor 10 can be reduced by avoiding enlargement of the coupling portion of the motor case 21 and the gear case 31, and since it is unnecessary to interpose the brush holder 70 in the coupling portion between the motor case 21 and the gear case 31, a sufficient seal performance can be obtained.Type: ApplicationFiled: July 12, 2013Publication date: June 2, 2016Inventors: Kenji Yasumoto, Teppei Tokizaki, Shigeki Ota
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Publication number: 20160134073Abstract: In an electric motor, a brush holder stay (33) has an opening section through which a commutator (23) is able to be inserted in a rotary shaft direction (O1), brush holders (41) extend in the rotary shaft direction (O1) and are formed in a flat spring shape biased toward the inside in a radial direction, base end sections of the brush holders (41) are supported by the brush holder stay (33) at intervals in a circumferential direction around the rotary shaft (3), and brushes (31) are held by the front end sections of the brush holders (41).Type: ApplicationFiled: July 10, 2014Publication date: May 12, 2016Inventors: Teppei Tokizaki, Yoshichika Kawashima, Natsumi Tamura
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Publication number: 20160065012Abstract: An electric motor includes a yoke having six magnetic poles; a rotary shaft which is provided inside the yoke in a freely rotatable manner; an armature core (6) which has teeth (36) attached to the rotary shaft, radially extending in a radial direction and set in an arrangement of an even number, and an even number of slots (37) formed between the teeth; an armature coil (7) which is wound around the teeth in a single wave winding; and a commutator (13) which is provided in the rotary shaft to be adjacent to the armature core (6) and has a plurality of circumferentially disposed segments (41) to which the armature coil (7) is connected.Type: ApplicationFiled: March 25, 2014Publication date: March 3, 2016Inventors: Yoshichika Kawashima, Teppei Tokizaki, Natsumi Tamura
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Patent number: 9276450Abstract: A wiper motor (10) comprises: a motor body (11) comprising a motor case (13) rotatably supporting an end of the motor shaft (17) in the axial direction thereof; a reduction mechanism (26) reducting the speed of rotation of the motor shaft (17) and transmitting the rotation having the reduced speed to a worm wheel (35); and a motion conversion mechanism (29) converting the rotational motion of the worm wheel (35) into a rocking motion and transmitting the rocking motion to an output shaft (28). The position of the output shaft (28) is set up that the axis (C1) of the output shaft (28) is closer to the motor case (13) than the axis (C2) of the worm wheel (35) and farther from the axis (C2) of the worm wheel (35) than the axis (C) of the motor shaft (17).Type: GrantFiled: August 25, 2011Date of Patent: March 1, 2016Assignee: Mitsuba CorporationInventors: Teppei Tokizaki, Shigeki Ota, Kenji Yasumoto
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Publication number: 20160056687Abstract: An electric motor (2) includes a yoke (5) having a cylindrical magnet housing section (54) that houses a magnet (7), and a gear housing (23) having a cylindrical frame section (22) that houses at least a brush holder. One side of the yoke (5) is joined to the other side of the frame section (22), and a rotary shaft is housed in the magnet housing section (54) and the frame section (22) in an axial direction of the magnet housing section (54) and the frame section (22). A first axial length (F) is formed to be equal to or longer than a second axial length (Y), the first axial length (F) is an axial length of an outer wall of the frame section (22) that is formed substantially parallel to the rotary shaft, and the second axial length (Y) is an axial length of an outer wall of the magnet housing section (54) that is formed substantially parallel to the rotary shaft.Type: ApplicationFiled: March 20, 2014Publication date: February 25, 2016Applicant: MITSUBA CORPORATIONInventors: Yoshichika Kawashima, Teppei Tokizaki, Natsumi Tamura
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Publication number: 20160049844Abstract: A motor apparatus provided with a connector unit (40) to which an external connector is connected, wherein the connector unit (40) has a plurality of conductive members (64, 65, 66) arranged over a base portion (50) and a connector connecting portion (70) provided with a plug-in hole in which the external connector is plugged, wherein the conductive members (64, 65, 66) respectively include connector-side connecting portions (64a, 65a, 66a) connected to the external connector so as to face the connector connecting portion (70) from a first direction reversed to a plug-in direction of the external connector to the plug-in hole and base-side connecting portions (64b, 65b, 66b) connected to terminals or wirings provided in the base portion (50), wherein the connector-side connecting portions (64a, 65a, 66a) are respectively inserted into a plurality of insertion holes (74, 75, 76) provided at positions different from each other in a second direction intersecting the first direction, and wherein the base-side conType: ApplicationFiled: March 20, 2014Publication date: February 18, 2016Inventors: Kenji Yasumoto, Teppei Tokizaki, Shigeki Ota
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Patent number: 9182020Abstract: A wiper motor 10 has a reduction mechanism 29 for reducing the rotational speed of a motor shaft 25 and transmitting the reduced speed, and a motion conversion mechanism 31 for converting the rotational motion of the reduction mechanism 29 into a rotational motion and transmitting the motion to the output shaft 30. A pair of first connection holes 50 and a pair of second connection holes 51 are formed on a worm wheel 35 at a position deviated in a radial direction from an axial center of the worm wheel so that each of the holes is opened at the side of one axial end side. The worm wheel 35 can be used for both cases in which the output shaft 30 is swung within a first swinging region and in which the output shaft 30 is swung within a second swinging region.Type: GrantFiled: November 29, 2011Date of Patent: November 10, 2015Assignee: Mitsuba CorporationInventors: Teppei Tokizaki, Shigeki Ota