Patents by Inventor Tatsuya Fukushima
Tatsuya Fukushima 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: 20110050013Abstract: Due to a centrifugal force in a vehicle width direction due to turning of an automobile, oil in an electric motor housing chamber housing an electric motor and oil in a transmission housing chamber housing a reduction gear and a differential gear flows to-and-fro via oil communication passages that penetrate a partitioning wall. An opening on the transmission housing chamber side of the oil communication passages is spaced from the partitioning wall. Hence, when oil moves from the transmission housing chamber side to the electric motor housing chamber side, it is possible to prevent the oil quantity on the electric motor housing chamber side from increasing excessively and suppress an increase in resistance to oil stirring by a rotor of the electric motor while retaining a constant oil amount on the transmission housing chamber side to ensure lubricating performance for the reduction gear and the differential gear.Type: ApplicationFiled: November 9, 2010Publication date: March 3, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Seiichi Mogi, Tatsuya Fukushima
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Patent number: 7884511Abstract: Due to a centrifugal force in a vehicle width direction due to turning of an automobile, oil in an electric motor housing chamber housing an electric motor and oil in a transmission housing chamber housing a reduction gear and a differential gear flows to-and-fro via oil communication passages that penetrate a partitioning wall. An opening on the transmission housing chamber side of the oil communication passages is spaced from the partitioning wall. Hence, when oil moves from the transmission housing chamber side to the electric motor housing chamber side, it is possible to prevent the oil quantity on the electric motor housing chamber side from increasing excessively and suppress an increase in resistance to oil stirring by a rotor of the electric motor while retaining a constant oil amount on the transmission housing chamber side to ensure lubricating performance for the reduction gear and the differential gear.Type: GrantFiled: November 10, 2008Date of Patent: February 8, 2011Assignee: Honda Motor Co., Ltd.Inventors: Seiichi Mogi, Tatsuya Fukushima
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Patent number: 7775614Abstract: The present invention provides complementary recording in that when a defective nozzle is generated, recording is performed by other normal nozzles. According to the present invention, a mask pattern used for multipath recording, which completes an image by multiple scannings with a recording head, is rewritten when a defective nozzle is generated. Rewriting mask data is produced in a CPU register, and the mask pattern is rewritten by repeating the produced mask data. According to the present invention, it is not necessary to prepare mask data by assuming a defective nozzle in advance, so that high speed complementary recording processing can be performed with simple configuration.Type: GrantFiled: April 11, 2005Date of Patent: August 17, 2010Assignee: Canon Kabushiki KaishaInventors: Mitsuharu Takizawa, Tatsuya Fukushima
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Publication number: 20090315423Abstract: A motor including: a rotatably supported shaft; and a rotor section press-fitted and fixed coaxially to the shaft, wherein the rotor section is provided with: a rotor yoke; a housing hole formed on an end surface of the rotor yoke along the axial direction of the shaft; a permanent magnet housed within the housing hole; and a pair of end surface plates: that have a ring-shaped plate that is provided so as to cover at least an opening section of the housing hole and that is made of a non-magnetic material, and a supporting plate that supports the ring-shaped plate, that is press-fitted and fixed on the shaft, and that has a coefficient of linear expansion equivalent to that of the shaft; that are provided on axial end portions of the rotor yoke; and that clamp the rotor yoke so as to hold the permanent magnet within the housing hole.Type: ApplicationFiled: June 17, 2009Publication date: December 24, 2009Applicant: HONDA MOTOR CO., LTD.Inventors: Takanori SUZUKI, Tatsuya FUKUSHIMA
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Patent number: 7172261Abstract: A printer includes an ink jet head, a recovery unit, a moving unit, a conveying unit and a cover. The ink jet head performs printing on a printing medium and has an ink ejection port on an ejection port forming surface. The recovery unit is used for a recovery process for maintaining an ink ejection state of the ink jet head in a good condition. The recovery unit includes a cap for covering the ejection port forming surface, a wiping member for wiping the ejection port forming surface, and an absorbing member for receiving ink ejected from the ejection port of the ink jet head. The moving unit moves the recovery unit to a position where the recovery unit faces the ink jet head and to a position where the recovery unit does not face the ink jet head, the ejection forming surface of which is oriented toward the printing medium. The conveying unit conveys the printing medium to be printed by the ink jet head. The cover contains the ink jet head and the recovery unit.Type: GrantFiled: October 26, 2004Date of Patent: February 6, 2007Assignee: Canon Finetech Inc.Inventors: Hitoshi Fujimoto, Katsumi Sugiyama, Masataka Naito, Masatoshi Ikkatai, Tsutomu Harada, Tatsuya Fukushima, Takefumi Tamura, Tsuyoshi Mikoshiba
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Publication number: 20050225585Abstract: The present invention provides complementary recording in that when a defective nozzle is generated, recording is performed by other normal nozzles. According to the present invention, a mask pattern used for multipath recording, which completes an image by multiple scannings with a recording head, is rewritten when a defective nozzle is generated. Rewriting mask data is produced in a CPU register, and the mask pattern is rewritten by repeating the produced mask data. According to the present invention, it is not necessary to prepare mask data by assuming a defective nozzle in advance, so that high speed complementary recording processing can be performed with simple configuration.Type: ApplicationFiled: April 11, 2005Publication date: October 13, 2005Applicant: Canon Kabushiki KaishaInventors: Mitsuharu Takizawa, Tatsuya Fukushima
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Patent number: 6949041Abstract: A vehicle driving system includes a pulley shaft synchronously rotating with a crankshaft of an engine, an auxiliary unit drive shaft driving an auxiliary unit, a planetary gear mechanism portion having elements such as a sun gear, a pinion carrier and a ring gear. The pulley shaft and the auxiliary unit drive shaft are adapted for connection to any two of the elements, respectively. The motor connecting to the remaining element of the planetary gear mechanism portion. A lock-up clutch connecting together the two or more elements of the planetary gear mechanism portion. A one-way clutch for restricting the rotation of the auxiliary unit drive shaft in one direction, wherein the planetary gear mechanism portion, the motor, the lock-up clutch, and the auxiliary unit drive shaft are coaxially disposed in line.Type: GrantFiled: October 3, 2003Date of Patent: September 27, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masato Fujioka, Junya Tachikawa, Tatsuya Fukushima
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Publication number: 20050088481Abstract: A printer includes an ink jet head, a recovery unit, a moving unit, a conveying unit and a cover. The ink jet head performs printing on a printing medium and has an ink ejection port on an ejection port forming surface. The recovery unit is used for a recovery process for maintaining an ink ejection state of the ink jet head in a good condition. The recovery unit includes a cap for covering the ejection port forming surface, a wiping member for wiping the ejection port forming surface, and an absorbing member for receiving ink ejected from the ejection port of the ink jet head. The moving unit moves the recovery unit to a position where the recovery unit faces the ink jet head and to a position where the recovery unit does not face the ink jet head, the ejection forming surface of which is oriented toward the printing medium. The conveying unit conveys the printing medium to be printed by the ink jet head. The cover contains the ink jet head and the recovery unit.Type: ApplicationFiled: October 26, 2004Publication date: April 28, 2005Applicant: Canon Finetech Inc.Inventors: Hitoshi Fujimoto, Katsumi Sugiyama, Masataka Naito, Masatoshi Ikkatai, Tsutomu Harada, Tatsuya Fukushima, Takefumi Tamura, Tsuyoshi Mikoshiba
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Patent number: 6878093Abstract: The power transmission mechanism reliably starts an internal combustion engine that is stopped during travel of a vehicle. While the internal combustion engine is stopped and the internal combustion engine and the transmission are disengaged by the main clutch, it is determined whether the mode is the EV travel mode, corresponding to the driving mode by the electric motor. In the case of the motor driving mode, and if the vehicle speed is less than a predetermined value, the engine is started in a neutral mode. If the vehicle speed is higher than a predetermined value, the engine is started in a standby mode. When starting in the standby mode, a gear set is selected based on the vehicle speed, and the input shaft and the output shaft are engaged.Type: GrantFiled: November 22, 2002Date of Patent: April 12, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tatsuya Fukushima, Kazuaki Takizawa, Eijiro Shimabukuro, Katsuhiro Kitamura
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Patent number: 6871936Abstract: In a recovering apparatus for recovering ink ejecting ports forming a plane of an ink jet head, an ink absorbing member is disposed inward of a cap and proximate to the ink ejecting ports, facing the ink ejecting ports at a predetermined distance therefrom. Large ink droplets or water droplets adhering to the ink ejecting ports are then absorbed in the absorbing member. Thereafter, the plane of the ink jet heads with the ink ejecting ports is cleanly wiped by a wiping member, thereby preventing scattering of ink droplets or water droplets away from the ink ejecting ports. A trough is located adjacent to each head, and the recovering apparatus is disposed with respect to the trough so that a distance between the recovering apparatus and the ink jet head can be reduced, thereby permitting a compact arrangement of the recovering apparatus and the ink jet head.Type: GrantFiled: April 14, 2003Date of Patent: March 29, 2005Assignee: Canon Finetech Inc.Inventors: Hitoshi Fujimoto, Katsumi Sugiyama, Masataka Naito, Masatoshi Ikkatai, Tsutomu Harada, Tatsuya Fukushima, Takefumi Tamura, Tsuyoshi Mikoshiba
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Patent number: 6845832Abstract: The present invention is made to operate auxiliary machine while an engine is stopped, to start an engine and to charge a battery by providing a single motor and a simple construction and by providing a simple control operation. An engine system comprises an engine, a motor, and auxiliary machine, and further comprises a planetary mechanism having three elements comprising a sun gear, a carrier and a ring gear, to which any one of an output shaft of the engine, an output shaft of the motor and a drive shaft of the auxiliary machine are respectively connected, a uniting connection device capable of uniting two or more elements of the planetary mechanism, and a rotation direction restriction device which restricts a rotation direction of the drive shaft of the auxiliary machine to one direction.Type: GrantFiled: November 18, 2002Date of Patent: January 25, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kazuaki Takizawa, Tatsuya Fukushima, Katsuya Minami, Masato Fujioka, Kazuo Ooyama, Eijiro Shimabukuro, Junya Tachikawa
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Publication number: 20040116227Abstract: A vehicle driving system includes a pulley shaft synchronously rotating with a crankshaft of an engine, an auxiliary unit drive shaft driving an auxiliary unit, a planetary gear mechanism portion having elements such as a sun gear, a pinion carrier and a ring gear. The pulley shaft and the auxiliary unit drive shaft are adapted for connection to any two of the elements, respectively. The motor connecting to the remaining element of the planetary gear mechanism portion. A lock-up clutch connecting together the two or more elements of the planetary gear mechanism portion. A one-way clutch for restricting the rotation of the auxiliary unit drive shaft in one direction, wherein the planetary gear mechanism portion, the motor, the lock-up clutch, and the auxiliary unit drive shaft are coaxially disposed in line.Type: ApplicationFiled: October 3, 2003Publication date: June 17, 2004Inventors: Masato Fujioka, Junya Tachikawa, Tatsuya Fukushima
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Publication number: 20030202036Abstract: To provide a small-sized recovering apparatus for recovering the ink ejecting ports forming plane of an ink jet head, an ink absorbing member disposed inward of a cap comes near to the ink ejecting ports forming plane of the ink jet head with a predetermined distance to face to it. Subsequently, large ink droplets or water droplets adhering to the ink ejecting ports forming plane of the ink jet head are absorbed in the absorbing member. Thereafter, the ink ejecting ports forming plane is cleanly wiped by a wiping member, whereby there does not arise a malfunction that ink droplets or water droplets are scattered away from the ink ejecting ports forming plane of the ink jet head. Since a trough serving as recovering means is located adjacent to each head, a distance of relative displacement between the recovering means and the ink jet head can be reduced, resulting in the whole recovering apparatus being designed and constructed with small dimensions.Type: ApplicationFiled: April 14, 2003Publication date: October 30, 2003Applicant: CANON APTEX INC.Inventors: Hitoshi Fujimoto, Katsumi Sugiyama, Masataka Naito, Masatoshi Ikkatai, Tsutomu Harada, Tatsuya Fukushima, Takefumi Tamura, Tsuyoshi Mikoshiba
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Publication number: 20030104901Abstract: The present invention reliably starts an internal combustion engine that is stopped during travel of the vehicle. While the internal combustion engine is stopped and the internal combustion engine and the transmission are disengaged by the main clutch, it is determined whether the mode is the EV travel mode, corresponding to the driving mode by the electric motor. In the case of the motor driving mode, and if the vehicle speed is less than a predetermined value, the engine is started in neutral mode. If the vehicle speed is higher than a predetermined value, the engine is started in standby mode. When starting in the standby mode, a gear set is selected based on the vehicle speed, and the input shaft and the output shaft are engaged.Type: ApplicationFiled: November 22, 2002Publication date: June 5, 2003Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Tatsuya Fukushima, Kazuaki Takizawa, Eijiro Shimabukuro, Katsuhiro Kitamura
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Publication number: 20030094317Abstract: The present invention is made to operate auxiliary machine while an engine is stopped, to start an engine and to charge a battery by providing a single motor and a simple construction and by providing a simple control operation. An engine system comprises an engine, a motor, and auxiliary machine, and further comprises a planetary mechanism having three elements comprising a sun gear, a carrier and a ring gear, to which any one of an output shaft of the engine, an output shaft of the motor and a drive shaft of the auxiliary machine are respectively connected, a uniting connection device capable of uniting two or more elements of the planetary mechanism, and a rotation direction restriction device which restricts a rotation direction of the drive shaft of the auxiliary machine to one direction.Type: ApplicationFiled: November 18, 2002Publication date: May 22, 2003Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Kazuaki Takizawa, Tatsuya Fukushima, Katsuya Minami, Masato Fujioka, Kazuo Ooyama, Eijiro Shimabukuro, Junya Tachikawa
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Patent number: 6460918Abstract: A vehicle body structure comprise a cross member and a floor. Two parallel side members extend along a longitudinal central line of a vehicle and outwardly from the cross member. The cross member is formed by extrusion in a first direction lying in parallel to a transverse line crossing the longitudinal central line. The floor is formed by extrusion in a second direction lying in parallel to the longitudinal central line. The floor includes a recess recessed inwardly and a floor panel portion that defines at least a portion of the recess defining edge. The cross member has an integral tooth fitted into the recess and connected to said floor along the recess defining edge.Type: GrantFiled: October 17, 2000Date of Patent: October 8, 2002Assignee: Nissan Motor Co., Ltd.Inventors: Manabu Sato, Tatsuya Fukushima
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Patent number: 6352334Abstract: An ink jet printer comprises a wiper member for wiping the surface of the ink jet recording head. The ink jet recording head and the wiper member move in the same direction each other to wipe the surface of the ink jet recording head by one operation. In this way, the stabilized wiping is always possible to keep the head surface in an appropriate condition of ink discharges, hence obtaining images in beautiful print quality with the stable ink discharges.Type: GrantFiled: October 19, 1998Date of Patent: March 5, 2002Assignee: Canon Kabushiki KaishaInventors: Tatsuya Fukushima, Masatoshi Ikkatai, Toshiro Sugiyama
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Publication number: 20010033308Abstract: To provide a small-sized recovering apparatus for recovering the ink ejecting ports forming plane of an ink jet head, an ink absorbing member disposed inward of a cap comes near to the ink ejecting ports forming plane of the ink jet head with a predetermined distance to face to it. Subsequently, large ink droplets or water droplets adhering to the ink ejecting ports forming plane of the ink jet head are absorbed in the absorbing member. Thereafter, the ink ejecting ports forming plane is cleanly wiped by a wiping member, whereby there does not arise a malfunction that ink droplets or water droplets are scattered away from the ink ejecting ports forming plane of the ink jet head. Since a trough serving as recovering means is located adjacent to each head, a distance of relative displacement between the recovering means and the ink jet head can be reduced, resulting in the whole recovering apparatus being designed and constructed with small dimensions.Type: ApplicationFiled: March 10, 1995Publication date: October 25, 2001Inventors: HITOSHI FUJIMOTO, KATSUMI SUGIYAMA, MASATAKA NAITO, MASATOSHI IKKATAI, TSUTOMU HARADA, TATSUYA FUKUSHIMA, TAKEFUMI TAMURA, TSUYOSHI MIKOSHIBA
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Publication number: 20010020963Abstract: An ink jet printer comprises a wiper member for wiping the surface of the ink jet recording head. The ink jet recording head and the wiper member move in the same direction each other to wipe the surface of the ink jet recording head by one operation. In this way, the stabilized wiping is always possible to keep the head surface in an appropriate condition of ink discharges, hence obtaining images in beautiful print quality with the stable ink discharges.Type: ApplicationFiled: October 19, 1998Publication date: September 13, 2001Inventors: TATSUYA FUKUSHIMA, MASATOSHI IKKATAI, TOSHIRO SUGIYAMA
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Patent number: 6267040Abstract: In a power steering device, a pump supplies a pressure fluid. A power cylinder has left and right chambers and is driven in accordance with a pressure difference between a pressure fluid supplied to the left chamber and that to the right chamber. A flow channel selector valve selectively switches a supply direction of the pressure fluid from the pump to the chambers of the power cylinder in response to steering operation of a steering wheel. Fluid paths connect the flow channel selector valve and the corresponding chambers of the power cylinder to each other. Variable restrictors are disposed in the fluid paths, respectively, to control flow rate of the pressure fluid from the power cylinder to the flow channel selector valve. Check valves are respectively connected to the fluid paths in parallel to the corresponding variable restrictors to prevent a flow of the pressure fluid from the power cylinder to the flow channel selector valve.Type: GrantFiled: July 26, 1999Date of Patent: July 31, 2001Assignee: Bosch Braking Systems Co., Ltd.Inventors: Hirotetsu Sonoda, Tatsuya Fukushima