Patents by Inventor Fumihiro Morishita
Fumihiro Morishita 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: 7868731Abstract: A thermal overload relay is provided with an external case, and an adjustment dial with a cam inserted into an adjustment dial insertion hole provided in the external case for adjusting a settling current. A press-fitting section is provided at one of the adjustment dial and the adjustment dial insertion hole, and a locking section is provided at the other of the adjustment dial and the adjustment dial insertion hole. The press-fitting section is press-fit and retained in the locking section.Type: GrantFiled: December 30, 2008Date of Patent: January 11, 2011Assignee: Fuji Electric Fa Components & Systems Co., Ltd.Inventors: Yukinari Furuhata, Fumihiro Morishita, Takeo Kamosaki
-
Publication number: 20100253467Abstract: A thermal overload relay device has a mechanism that allows the interphase pitch between connection lines to be readily changeable without using a jig or the like in the work for electrically connecting the thermal overload relay to different types of electromagnetic contactors, thereby reducing the maintenance cost. The mechanism comprises a connection line-holding structure disposed in a casing and holding the connection lines, while permitting the distances between the connection lines to be readily changeable between among at least two different interphase pitches.Type: ApplicationFiled: March 29, 2010Publication date: October 7, 2010Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Takeo KAMOSAKI, Fumihiro MORISHITA, Yukinari FURUHATA
-
Publication number: 20100245021Abstract: A thermal overload relay has an actuator mechanism that generates an operating force by bending of a main bimetal with a heating wire wound thereon; a switching mechanism that is driven by the operating force from the actuator mechanism; a contact changeover mechanism wherein contacts are changed by the switching mechanism operation; and a casing that contains the actuator, the switching and the contact changeover mechanisms. The casing has main circuit terminals and auxiliary circuit terminals arranged on one side, the main circuit terminals electrically connecting the thermal overload relay to an electric load device, and the auxiliary circuit terminals electrically connecting the thermal overload relay to another electric device. When the casing is viewed in plan, the main circuit terminals are aligned and, the auxiliary circuit terminals are arranged in a position offset from the position of the alignment of the main circuit terminals.Type: ApplicationFiled: February 23, 2010Publication date: September 30, 2010Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Yukinari Furuhata, Fumihiro Morishita, Takeo Kamosaki
-
Publication number: 20100245020Abstract: A thermal overload relay includes a main bimetal for detection of an overload current, a shifter associated with the main bimetal, a release lever working according to a displacement of the shifter, a contact reversing mechanism for changing-over contacts by reversing action caused by rotation of the release lever, and a manipulation structure for manipulating the release lever and the contact reversing mechanism. The manipulation structure includes a reset bar for returning the contact reversing mechanism to an initial state. The reset bar is arranged to change-over between a manual reset state in which the reset bar can be pushed-in and an automatic reset state in which the reset bar is pushed-in and turned from the manual reset state and held in that state.Type: ApplicationFiled: February 16, 2010Publication date: September 30, 2010Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Fumihiro Morishita, Yukinari Furuhata, Takeo Kamosaki
-
Publication number: 20100245018Abstract: A thermal overload relay includes main bimetals which bend upon detection of an overload current; a release lever displaced via movement of a shifter moved in response to the bending of the main bimetals; and a contact reversing mechanism for changing-over contacts responsive to a rotation of the release lever. The main bimetals, the release lever and the contact reversing mechanism are all disposed in a case. The contact reversing mechanism includes a pivotable movable plate; a reversing spring reversing the movable plate by coupling with a rotated release lever; and an interlock plate rotating around a support shaft together with the movable plate. Each contact has a normally opened contact piece and a normally closed contact piece and is disposed respectively in the vicinity of a front surface and in the vicinity of a back surface of the interlock plate.Type: ApplicationFiled: February 23, 2010Publication date: September 30, 2010Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS, CO., LTD.Inventors: Yukinari Furuhata, Fumihiro Morishita, Takeo Kamosaki
-
Publication number: 20100245019Abstract: A thermal overload relay has a case, a main bimetal bending upon detection of an overload current, a release lever rotatably supported by an adjusting link and rotating according to a shifter displaced in response to the bending of the main bimetals, and a contact reversing mechanism for change-over contacts responsive to a rotation of the release lever. The main bimetal, release lever and contact reversing mechanism are disposed in the case. The contact reversing mechanism has a movable plate, and a reversing spring stretched between the other side of the movable plate and a spring support. The other end of the movable plate and the spring support is positioned opposite a support point. The release lever has a release lever supporting part, a reversing spring pushing part, a cam contact part, and a displacement input part, in which the release lever supporting part is pivoted on the adjusting link.Type: ApplicationFiled: March 3, 2010Publication date: September 30, 2010Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Yukinari Furuhata, Fumihiro Morishita, Takeo Kamosaki
-
Publication number: 20090323302Abstract: A thermal relay includes an outer casing; an adjusting dial for adjusting a setting current value; and a cover for avoiding an erroneous operation. The cover is attached to the outer casing to cover the adjusting dial. A chamfer is provided on each of a peripheral surface of a back surface of the cover and a peripheral surface of a top surface of the adjusting dial. The chamfer on the peripheral surface of the back surface of the cover and the chamfer on the peripheral surface of the top surface of the adjusting dial are engaged with each other.Type: ApplicationFiled: April 24, 2009Publication date: December 31, 2009Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Yukinari Furuhata, Fumihiro Morishita, Takeo Kamosaki
-
Publication number: 20090206977Abstract: A thermal overload relay is provided with an external case, and an adjustment dial with a cam inserted into an adjustment dial insertion hole provided in the external case for adjusting a settling current. A press-fitting section is provided at one of the adjustment dial and the adjustment dial insertion hole, and a locking section is provided at the other of the adjustment dial and the adjustment dial insertion hole. The press-fitting section is press-fit and retained in the locking section.Type: ApplicationFiled: December 30, 2008Publication date: August 20, 2009Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.Inventors: Yukinari Furuhata, Fumihiro Morishita, Takeo Kamosaki
-
Publication number: 20060288800Abstract: The rotation angle detection device detects the rotation angle of a rotary member by employing, at the least, either a sine wave signal or a cosine wave signal that is generated as the rotary member is rotated, and employs a change per unit time in the sine wave signal or cosine wave signal to determine whether an output abnormality has occurred in the rotation angle detection device. Further, this rotation angle device is employed to detect the motor angle of an electric power steering apparatus.Type: ApplicationFiled: June 27, 2006Publication date: December 28, 2006Inventors: Yoshinobu Mukai, Hiroaki Horii, Fumihiro Morishita
-
Patent number: 7154244Abstract: Steering apparatus includes at least one motor for generating a steering assisting force in a direction to steer a steerable wheel, two drive circuits having respective switching elements for PWM-controlling the motor, and a controller for differentiating, between the drive circuits, a control frequency at which the switching element is switched on and off. The differentiated PWM switching timing can effectively reduce switching noise and magnetostrictive sound of the motor.Type: GrantFiled: October 22, 2003Date of Patent: December 26, 2006Assignee: Honda Motor Co., Ltd.Inventors: Hisao Asaumi, Osamu Tsurumiya, Hirokazu Kitazawa, Shinji Suto, Junichi Yoshida, Tomoaki Sugano, Fumihiro Morishita, Hiroaki Horii
-
Patent number: 7042179Abstract: An electric power steering apparatus using a brushless motor is disclosed. The electric power steering apparatus has a microcomputer for calculating a target current to the brushless motor on the basis of a torque signal outputted from a steering torque detecting part. The microcomputer has a table stored in ROM. The microcomputer calculates the angular position of the brushless motor by referring to the table on the basis of a signal outputted by a resolver.Type: GrantFiled: February 16, 2005Date of Patent: May 9, 2006Assignee: Honda Motor Co., Ltd.Inventors: Yoshinobu Mukai, Yasuhiro Nakano, Masanori Takagi, Hiroaki Horii, Osamu Tsurumiya, Fumihiro Morishita, Takashi Kuribayashi
-
Patent number: 7014008Abstract: A motor driving method for a steering apparatus for applying an auxiliary steering force to a steering system with two motors. When the two motors are driven, a first one of the two motors is operated first. Thereafter, the other, second motor is driven, whereby smooth steering is effected.Type: GrantFiled: June 24, 2003Date of Patent: March 21, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Furumi, Osamu Tsurumiya, Kazuhiko Inaba, Hisao Asaumi, Yoshio Kakizaki, Hirokazu Kitazawa, Tomoaki Sugano, Shinji Suto, Hiroaki Horii, Fumihiro Morishita, Junichi Yoshida
-
Publication number: 20060055139Abstract: An electric power steering apparatus (10) includes a steering wheel (21), a steering shaft (22), a rack-and-pinion mechanism (25), and a rack shaft (26) connected to the steering wheel through the steering shaft and the rack-and-pinion mechanism. The rack shaft is connected to vehicle wheels (29, 29). The electric power steering apparatus further includes a first electric motor (41) for producing a motive power to be applied to the steering shaft, and a second electric motor (51) for producing a motive power to be applied to the rack shaft.Type: ApplicationFiled: July 2, 2003Publication date: March 16, 2006Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Furumi, Osamu Tsurumiya, Hiroshi Ichimura, Kazuhiko Inaba, Katsuyuki Miyashita, Takahiro Yaginuma, Tomoaki Sugano, Hirokazu Kitazawa, Fumihiro Morishita
-
Patent number: 6971473Abstract: Steering apparatus for transmitting a driving force of a motor through a gear mechanism to a rack shaft of a steering system and applying the driving force to steering road wheels in a steering direction. The apparatus has first and second motors. In the transmission of driving forces from output shafts of the first and second motors to the rack shaft, the phases of the two motors are essentially staggered by 180 degree.Type: GrantFiled: November 24, 2004Date of Patent: December 6, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Furumi, Osamu Tsurumiya, Kazuhiko Inaba, Hisao Asaumi, Yoshio Kakizaki, Hirokazu Kitazawa, Tomoaki Sugano, Shinji Suto, Hiroaki Horii, Fumihiro Morishita, Junichi Yoshida
-
Publication number: 20050231145Abstract: An electric power steering apparatus using a brushless motor is disclosed. The electric power steering apparatus has a microcomputer for calculating a target current to the brushless motor on the basis of a torque signal outputted from a steering torque detecting part. The microcomputer has a table stored in ROM. The microcomputer calculates the angular position of the brushless motor by referring to the table on the basis of a signal outputted by a resolver.Type: ApplicationFiled: February 16, 2005Publication date: October 20, 2005Applicant: HONDA MOTOR CO., LTD.Inventors: Yoshinobu Mukai, Yasuhiro Nakano, Masanori Takagi, Hiroaki Horii, Osamu Tsurumiya, Fumihiro Morishita, Takashi Kuribayashi
-
Patent number: 6929090Abstract: An electric power steering apparatus with a plurality of motors for applying a force to steering road wheels in a steering direction with mechanism which applies an increase in allocation of auxiliary steering force to an operating motor when at least one of the motors has failed.Type: GrantFiled: November 24, 2004Date of Patent: August 16, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Furumi, Osamu Tsurumiya, Kazuhiko Inaba, Hisao Asaumi, Yoshio Kakizaki, Hirokazu Kitazawa, Tomoaki Sugano, Shinji Suto, Hiroaki Horii, Fumihiro Morishita, Junichi Yoshida
-
Publication number: 20050093489Abstract: A motor driving method for a steering apparatus for applying an auxiliary steering force to a steering system with two motors. When the two motors are driven, a first one of the two motors is operated first. Thereafter, the other, second motor is driven, whereby smooth steering is effected.Type: ApplicationFiled: November 24, 2004Publication date: May 5, 2005Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Furumi, Osamu Tsurumiya, Kazuhiko Inaba, Hisao Asaumi, Yoshio Kakizaki, Hirokazu Kitazawa, Tomoaki Sugano, Shinji Suto, Hiroaki Horii, Fumihiro Morishita, Junichi Yoshida
-
Publication number: 20050087390Abstract: A motor driving method for a steering apparatus for applying an auxiliary steering force to a steering system with two motors. When the two motors are driven, a first one of the two motors is operated first. Thereafter, the other, second motor is driven, whereby smooth steering is effected.Type: ApplicationFiled: November 24, 2004Publication date: April 28, 2005Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Furumi, Osamu Tsurumiya, Kazuhiko Inaba, Hisao Asaumi, Yoshio Kakizaki, Hirokazu Kitazawa, Tomoaki Sugano, Shinji Suto, Hiroaki Horii, Fumihiro Morishita, Junichi Yoshida
-
Publication number: 20040080295Abstract: Steering apparatus includes at least one motor for generating a steering assisting force in a direction to steer a steerable wheel, two drive circuits having respective switching elements for PWM-controlling the motor, and a controller for differentiating, between the drive circuits, a control frequency at which the switching element is switched on and off. The differentiated PWM switching timing can effectively reduce switching noise and magnetostrictive sound of the motor.Type: ApplicationFiled: October 22, 2003Publication date: April 29, 2004Applicant: HONDA MOTOR CO., LTD.Inventors: Hisao Asaumi, Osamu Tsurumiya, Hirokazu Kitazawa, Shinji Suto, Junichi Yoshida, Tomoaki Sugano, Fumihiro Morishita, Hiroaki Horii
-
Publication number: 20040007416Abstract: A motor driving method for a steering apparatus for applying an auxiliary steering force to a steering system with two motors. When the two motors are driven, a first one of the two motors is operated first. Thereafter, the other, second motor is driven, whereby smooth steering is effected.Type: ApplicationFiled: June 24, 2003Publication date: January 15, 2004Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Furumi, Osamu Tsurumiya, Kazuhiko Inaba, Hisao Asaumi, Yoshio Kakizaki, Hirokazu Kitazawa, Tomoaki Sugano, Shinji Suto, Hiroaki Horii, Fumihiro Morishita, Junichi Yoshida