Patents by Inventor Tomoyuki Kikuta
Tomoyuki Kikuta 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: 20070200389Abstract: A backdoor apparatus includes a backdoor panel, a rear spoiler and a wiper mechanism. The wiper mechanism includes a motor assembly, a wiper arm and a wiper blade. A motor installation recess is formed in a top portion of the backdoor panel to receive the motor assembly. The motor assembly includes a cover, which covers a portion of a motor, which is exposed from the rear spoiler. The cover has a flange, which covers a top end part of the glass. The cover, which includes the flange, does not contact the glass.Type: ApplicationFiled: February 15, 2007Publication date: August 30, 2007Applicant: ASMO CO., LTD.Inventors: Eiji Ina, Masaki Kobayashi, Tomoyuki Kikuta, Atsushi Katou
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Patent number: 6809446Abstract: A yoke housing accommodates an armature having a coil and has a tubular circumferential wall. The yoke housing includes a plurality of pieces, which form the yoke housing, and a fracture portion, which is located along a boundary between the pieces. The fracture portion fractures when a compression force is applied from the outside to break the yoke housing into the pieces.Type: GrantFiled: March 28, 2003Date of Patent: October 26, 2004Assignee: Asmo Co., Ltd.Inventors: Toshio Yamamoto, Tomoyuki Kikuta, Masahiko Komoda, Masayuki Kuwano, Hideki Toida, Keiichi Uemura
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Patent number: 6803695Abstract: An armature includes a rotary shaft, a core, and a coupling member. The core is formed by using magnetic metal powder and has a tooth. A wire is wound about the tooth. The coupling member has a ductility that is higher than the ductility of the core. The coupling member is located between the core and the rotary shaft. The rotary shaft is press fitted in the coupling member, and the coupling member is press fitted in the core.Type: GrantFiled: March 4, 2003Date of Patent: October 12, 2004Assignee: ASMO Co., Ltd.Inventors: Toshio Yamamoto, Keiichi Uemura, Tomoyuki Kikuta, Masahiko Komoda, Masayuki Kuwano, Hideki Toida
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Publication number: 20040135446Abstract: A yoke housing accommodates an armature having a coil and has a tubular circumferential wall. The yoke housing includes a plurality of pieces, which form the yoke housing, and a fracture portion, which is located along a boundary between the pieces. The fracture portion fractures when a compression force is applied from the outside to break the yoke housing into the pieces.Type: ApplicationFiled: March 28, 2003Publication date: July 15, 2004Applicant: ASMO CO., LTD.Inventors: Toshio Yamamoto, Tomoyuki Kikuta, Masahiko Komoda, Masayuki Kuwano, Hideki Toida, Keiichi Uemura
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Publication number: 20040026991Abstract: A traction control system has electric braking devices, each of which is provided for one of the drive wheels of a vehicle and applies brake to the corresponding drive wheel. Rotational speeds of the drive wheels are detected by rotational speed sensors. When the difference between the rotational speeds detected by the rotational speed sensors exceeds a predetermined permissible value, an ECU determines that the faster wheel is slipping. Then, the ECU causes the electric braking device that corresponds to the slipping drive wheel to generate braking force. As a result, a traction control system of low cost and having no operational trouble is obtained.Type: ApplicationFiled: August 6, 2003Publication date: February 12, 2004Applicant: ASMO CO., LTD.Inventors: Hidetoshi Suzuki, Tomoyuki Kikuta, Eiji Ina
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Publication number: 20030201691Abstract: An armature includes a rotary shaft, a core, and a coupling member. The core is formed by using magnetic metal powder and has a tooth. A wire is wound about the tooth. The coupling member has a ductility that is higher than the ductility of the core. The coupling member is located between the core and the rotary shaft. The rotary shaft is press fitted in the coupling member, and the coupling member is press fitted in the core.Type: ApplicationFiled: March 4, 2003Publication date: October 30, 2003Applicant: ASMO CO., LTD.Inventors: Toshio Yamamoto, Keiichi Uemura, Tomoyuki Kikuta, Masahiko Komoda, Masayuki Kuwano, Hideki Toida
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Patent number: 6446768Abstract: While a regulation gear is positioned in a disengaged position where the regulation gear is disengaged from a pinion of a driving motor during running of a vehicle, a controller continuously applies a small holding voltage to a switching motor that drives the regulation gear to prevent engagement of the regulation gear with the pinion. The holding voltage is chosen to be relatively small, but enough to prevent engagement of the regulation gear with the pinion upon application of vibrations or shocks encountered during running of the vehicle.Type: GrantFiled: March 28, 2001Date of Patent: September 10, 2002Assignee: Asmo Co., Ltd.Inventors: Tomoyuki Kikuta, Naoki Ueno, Takayuki Yamamoto
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Patent number: 6316846Abstract: In order to provide a cord switch which can securely catch the ON/OFF operations, can cancel an erroneous operation by preventing the contact between electrodes caused by bending of the cord switch, and have a positive sensibility for the pressurization in all directions and a high reliability, at least two wire electrodes are spirally arranged along the inner surface of an insulator which is hollowed in the cross section and comprises a restorative rubber or plastic material in the longitudinal direction in a situation where the wire electrodes are not electrically contacted each other, and the wire electrodes are fixed to the hollowed insulator in a state where the wire electrodes are projected from the insulator.Type: GrantFiled: November 19, 1999Date of Patent: November 13, 2001Assignees: Hitachi Cable, Ltd., Asmo Co., Ltd.Inventors: Shigeru Kashiwazaki, Hideki Yagyu, Koji Horii, Hidenori Ishihara, Tomoyuki Kikuta, Takeshi Tanaka
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Publication number: 20010037919Abstract: While a regulation gear is positioned in a disengaged position where the regulation gear is disengaged from a pinion of a driving motor during running of a vehicle, a controller continuously applies a small holding voltage to a switching motor that drives the regulation gear to prevent engagement of the regulation gear with the pinion. The holding voltage is chosen to be relatively small, but enough to prevent engagement of the regulation gear with the pinion upon application of vibrations or shocks encountered during running of the vehicle.Type: ApplicationFiled: March 28, 2001Publication date: November 8, 2001Inventors: Tomoyuki Kikuta, Naoki Ueno, Takayuki Yamamoto
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Patent number: 6078014Abstract: In order to provide a cord switch which can reliably carry ON/OFF operations, can cancel an erroneous operation by preventing contact between electrodes caused by bending of the cord switch, and have a positive sensitivity for pressurization in all directions and high reliability, at least two wire electrodes are spirally arranged along the inner surface of an insulator which is hollowed in cross section and comprises a restorative rubber or plastic material in the longitudinal direction. The wire electrodes are not electrically contacting each other, and the wire electrodes are fixed to the hollowed insulator such that the wire electrodes are projected from the insulator.Type: GrantFiled: January 16, 1998Date of Patent: June 20, 2000Assignees: Hitachi Cable, Ltd., Asmo Co., Ltd.Inventors: Shigeru Kashiwazaki, Hideki Yagyu, Koji Horii, Hidenori Ishihara, Tomoyuki Kikuta, Takeshi Tanaka
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Patent number: 5966071Abstract: To improve the detection reliability in the detection of sticking of a foreign matter and minimize a sticking load, a power window is provided with a window frame sensor disposed along the inner peripheral edge of a window frame and a drive motor for advancing and retreating a window glass in accordance with an external signal. A control circuit makes a duty control for a transistor to decrease the operating speed of the window glass when the pressure detected by the window frame sensor becomes larger than a predetermined value during a closing operation of the window glass. Thereafter, when the drive load of the drive motor exceeds a predetermined value, a relay is switched over to operate the window glass reverse in the opening direction.Type: GrantFiled: April 30, 1998Date of Patent: October 12, 1999Assignee: Asmo Co., Ltd.Inventors: Noboru Tsuge, Takeshi Tanaka, Tomoyuki Kikuta, Hidenori Ishihara
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Patent number: 5905589Abstract: A light transmittance adjusting apparatus for adjusting a windowpane of an automobile or a building has a fixed member and a movable member arranged in parallel with each other and having a plurality of light interception sections and light transmission sections formed thereon alternately. The vertical position of the movable member are changed electrostatically relative to the fixed member to adjust the light transmittance of the windowpane. Each light interception section has a semi-interception region, the light transmittance of which decreases gradually from a center region thereof toward the adjacent light transmission section. The semi-interception region of the light interception section of a light interception plate of the fixed member overlap the semi-interception region of the light interception section of a light interception plate of the movable member, thus accomplishing an optical interception completely.Type: GrantFiled: November 3, 1997Date of Patent: May 18, 1999Assignee: Asmo Co., Ltd.Inventors: Takeshi Tanaka, Tomoyuki Kikuta, Hidetoshi Suzuki, Takayoshi Suzuki, Daisuke Kuribayashi
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Patent number: 5880421Abstract: To provide a power window apparatus which can reliably actuate an anti-pinching mechanism even in a window provided with a side visor, a cord switch operable in response to a specific external force is mounted in a joining part of a side visor between a window frame and the side visor. The cord switch senses the external force acting on the side visor, reliably detecting a foreign object pinched between a window glass and the side visor.Type: GrantFiled: March 27, 1997Date of Patent: March 9, 1999Assignee: ASMO Co., Ltd.Inventors: Noboru Tsuge, Takeshi Tanaka, Tomoyuki Kikuta, Hidenori Ishihara
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Patent number: 5774046Abstract: In a power window apparatus, an external force which develops at the time of catching foreign objects in a window is detected directly by a window frame sensor and indirectly by a motor load detection circuit. Automatic window closing operation is disabled when the external force exceeds a first and a second predetermined levels of the window frame sensor and the motor load detection circuit, respectively. When the window frame sensor fails, the window closing operation is disabled and a warning is provided at the time the external force detected by the load detection circuit reaches a third predetermined level. Alternatively, the automatic window closing operation is disabled when the external force exceeds the first or the second predetermined levels of the window frame sensor or the motor load detection circuit, respectively. When the window frame sensor fails, the window closing operation is disabled and the warning is provided at the time the external force reaches the second predetermined level.Type: GrantFiled: May 27, 1997Date of Patent: June 30, 1998Assignee: Asmo Co., Ltd.Inventors: Hidenori Ishihara, Tsutomu Saito, Takeshi Tanaka, Tomoyuki Kikuta, Noboru Tsuge
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Patent number: 5754017Abstract: To improve the detection reliability in the detection of sticking of a foreign matter and minimize a sticking load, a power window is provided with a window frame sensor disposed along the inner peripheral edge of a window frame and a drive motor for advancing and retreating a window glass in accordance with an external signal. A control circuit makes a duty control for a transistor to decrease the operating speed of the window glass when the pressure detected by the window frame sensor becomes larger than a predetermined value during a closing operation of the window glass. Thereafter, when the drive load of the drive motor exceeds a predetermined value, a relay is switched over to operate the window glass reverse in the opening direction.Type: GrantFiled: August 23, 1996Date of Patent: May 19, 1998Assignee: Asmo Co., Ltd.Inventors: Noboru Tsuge, Takeshi Tanaka, Tomoyuki Kikuta, Hidenori Ishihara
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Patent number: 5728983Abstract: A pressure-sensitive cable switch includes a pair of metallic conductors arranged in opposing relation to one another on the neutral axis for bending within the cross section of a rubber tube, and extend in the longitudinal direction of the tube. A pair of belt-shaped electrodes made of conductive rubber material or other conductive materials and embedding the metallic conductors therein, are disposed to oppose each other on the inner circumferential surface of the robe with respect to the neutral axis for bending. The electrodes extend in the longitudinal direction of the tube. Therefore, an erroneous operation of the cable switch at a part where the switch is bent is prevented, and furthermore the cable switch operates while coping with a wide range of load application angles.Type: GrantFiled: August 20, 1996Date of Patent: March 17, 1998Assignee: ASMO Co., Ltd.Inventors: Hidenori Ishihara, Tomoyuki Kikuta, Takeshi Tanaka
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Patent number: 5086900Abstract: In the electric actuator of the present invention, the power converting mechanism is provided for converting the rotary power of the motor into linear power of the driven member, which needs no special component part. Therefore, in comparison with the prior art power converting mechanism, it is advantage in that the scale of speed reduction and the stroke can be freely determined, with remarkably reduced number of parts and in low cost. The electric actuator according to the present invention is also provided with the improved clutch device employing the engagement of the weight and the recessed portion for secure transmission of the rotary power of the motor, resulting in full utilization of the capacity of the motor in simplified structure.Type: GrantFiled: June 6, 1990Date of Patent: February 11, 1992Assignee: ASMO Co., Ltd.Inventors: Tomoyuki Kikuta, Chikara Kawaguchi
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Patent number: 5042320Abstract: In the electric actuator of the present invention, the power converting mechanism is provided for converting the rotary power of the motor into linear power of the driven member, which needs no special component part. Therefore, in comparison with the prior art power converting mechanism, it is advantage in that the scale of speed reduction and the stroke can be freely determined, with remarkably reduced number of parts and in low cost. The electric actuator according to the present invention is also provided with the improved clutch device employing the engagement of the weight and the recessed portion for secure transmission of the rotary power of the motor, resulting in full utilization of the capacity of the motor is simplified structure.Type: GrantFiled: April 6, 1990Date of Patent: August 27, 1991Assignee: Asmo Co., Ltd.Inventors: Tomoyuki Kikuta, Chikara Kawaguchi
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Patent number: 5015930Abstract: In the electric actuator of the present invention, the power converting mechanism is provided for converting the rotary power of the motor into linear power of the driven member, which needs no special component part. Therefore, in comparison with the prior art power converting mechanism, it is advantage in that the scale of speed reduction and the stroke can be freely determined, with remarkably reduced number of parts and in low cost. The electric actuator according to the present invention is also provided with the improved clutch device employing the engagement of the weight and the recesses portion for secure transmission of the rotary power of the motor, resulting in full utilization of the capacity of the motor in simplified structure.Type: GrantFiled: April 6, 1990Date of Patent: May 14, 1991Assignee: Asmo Co., Ltd.Inventors: Tomoyuki Kikuta, Chikara Kawaguchi
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Patent number: 4903535Abstract: In the electric actuator of the present invention, the power converting mechanism is provided for converting the rotary power of the motor into linear power of the driven member, which needs no special component part. Therefore, in comparison with the prior art power converting mechanism, it is advantage in that the scale of speed reduction and the stroke can be freely determined, with remarkably reduced number of parts and in low cost. The electric actuator according to the present invention is also provided with the improved clutch device employing the engagement of the weight and the recessed portion for secure transmission of the rotary power of the motor, resulting in full utilization of the capacity of the motor in simplified structure.Type: GrantFiled: March 31, 1988Date of Patent: February 27, 1990Assignee: ASMO Co., Ltd.Inventors: Tomoyuki Kikuta, Chikara Kawaguchi