Patents by Inventor Masaharu Shimizu
Masaharu Shimizu 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: 20150245962Abstract: A single passenger carrying mobile robot, includes a single operated member that is operated by a passenger to instruct both a moving direction and a moving speed of the passenger carrying mobile robot, a moving member configured to move the passenger carrying mobile robot and a controller configured to control the moving member based on input information input to the operated member by the passenger, wherein the passenger carrying mobile robot further includes a sensor that acquires obstacle information of a surrounding of the passenger carrying mobile robot, and the controller predicts an expected course of the passenger carrying mobile robot based on the input information and determines based on the obstacle information whether or not an obstacle is located in the expected course, and changes a control of the moving member when determining that the obstacle is located.Type: ApplicationFiled: March 2, 2015Publication date: September 3, 2015Inventors: Takayuki Furuta, Masaharu Shimizu, Hideaki Yamato, Kengo Toda, Takashi Kodachi, Mitsuhiro Ando, Noboru Nagamine, Seongjun Yang, Hirotoshi Ochiai, Wataru Takayanagi
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Patent number: 9070519Abstract: The circuit opening operation section of an embodiment of switchgear operation mechanism comprises: a circuit opening electromagnetic solenoid having a fitting structure that is provided with a step; and a solenoid spacer for adjusting the distance between a circuit opening trigger mechanism and the circuit opening electromagnetic solenoid. The circuit opening solenoid has: a solenoid housing fixed in position by way of the solenoid spacer; a plunger; and a stopper fitted to the solenoid housing so as to limit the sliding motion of the plunger in the plunger returning direction when the coil is not supplied with electric power. The limiting position of the stopper is adjustable.Type: GrantFiled: November 4, 2013Date of Patent: June 30, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Marushima, Yoshiaki Ohda, Masaharu Shimizu, Tooru Inoue, Yoshikata Kobayashi
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Patent number: 8912870Abstract: According to an embodiment, when a switchgear operating state is shifted from a close state to a cutoff state, a solenoid lever is pushed and rotated by a plunger of an electromagnetic solenoid for cutoff so that the solenoid lever rotates in a direction opposite from the direction of the urging of a solenoid-lever return spring. A trigger roller pin and the solenoid lever become disengaged from each other, an eccentric pin and a trigger lever are rotated by the urging force from a latch leading end become disengaged from each other, whereby a latch lever is rotated by the released energy of a cutoff spring.Type: GrantFiled: July 29, 2013Date of Patent: December 16, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Marushima, Yoshikata Kobayashi, Yoshiaki Ohda, Masaharu Shimizu
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Publication number: 20140353888Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Yoshiaki OHDA, Yoshikata KOBAYASHI, Masaharu SHIMIZU, Satoshi MARUSHIMA, Hirokazu TAKAGI, Tooru INOUE
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Publication number: 20140353889Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Yoshiaki OHDA, Yoshikata KOBAYASHI, Masaharu SHIMIZU, Satoshi MARUSHIMA, Hirokazu TAKAGI, Tooru INOUE
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Publication number: 20140353890Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yoshiaki OHDA, Yoshikata KOBAYASHI, Masaharu SHIMIZU, Satoshi MARUSHIMA, Hirokazu TAKAGI, Tooru INOUE
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Publication number: 20140353086Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: ApplicationFiled: August 15, 2014Publication date: December 4, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Yoshiaki OHDA, Yoshikata KOBAYASHI, Masaharu SHIMIZU, Satoshi MARUSHIMA, Hirokazu TAKAGI, Tooru INOUE
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Patent number: 8844913Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: GrantFiled: October 7, 2010Date of Patent: September 30, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Yoshiaki Ohda, Yoshikata Kobayashi, Masaharu Shimizu, Satoshi Marushima, Hirokazu Takagi, Tooru Inoue
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Publication number: 20140262714Abstract: A switchgear operating mechanism has: a ratchet wheel that rotates together with a closing shaft; a stop lever that enables contact between an energy storing cam and a roller; a motor that transmits power to a feed lever; a feed pawl; stop pawls that suppresses reverse rotation of the feed pawl; a closing lever that expands/contracts a closing spring; a catch mechanism for energy storage for the closing lever; a closing cam; a stopper unit that suppresses rotation of the stop lever; a first sprocket; second and third sprockets that are capable of rotating together with an intermediate shaft; a fourth sprocket rotatably fastened to an energy storing cam shaft; a first chain that engages with the first and second sprockets; and a second chain that engages with the third and fourth sprockets.Type: ApplicationFiled: May 30, 2014Publication date: September 18, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Yoshiaki OHDA, Tatsuya WATANABE, Yoshikata KOBAYASHI, Masaharu SHIMIZU, Satoshi MARUSHIMA
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Publication number: 20140231391Abstract: A switchgear and an operating mechanism thereof which stably maintain a spring force by a shutoff spring, and reduce an opening time. The operating mechanism includes a main lever that rotates upon receiving the spring force by a shutoff spring released in a transition to a shutoff condition to move a movable contact apart from an opposing contact, and the main lever is linked with a sub lever fixed to a sub shaft rotatable around its shaft. The sub shaft is fixed with a latch lever with a roller attached to the tip thereof. The latch lever is prevented from rotating by a latch present on a movement trajectory of the roller. A weight is pushed against the latch in a separable manner, and the weight is pushed by an actuator to allow the latch to rotate, thereby being retracted from the movement trajectory of the roller.Type: ApplicationFiled: September 19, 2012Publication date: August 21, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tadashi Iwasawa, Yoshikata Kobayashi, Satoshi Marushima, Masaharu Shimizu, Masahiro Nagao, Tatsuya Watanabe, Hirokazu Takagi, Yoshiaki Ohda
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Publication number: 20140054148Abstract: The circuit opening operation section of an embodiment of switchgear operation mechanism comprises: a circuit opening electromagnetic solenoid having a fitting structure that is provided with a step; and a solenoid spacer for adjusting the distance between a circuit opening trigger mechanism and the circuit opening electromagnetic solenoid. The circuit opening solenoid has: a solenoid housing fixed in position by way of the solenoid spacer; a plunger; and a stopper fitted to the solenoid housing so as to limit the sliding motion of the plunger in the plunger returning direction when the coil is not supplied with electric power. The limiting position of the stopper is adjustable.Type: ApplicationFiled: November 4, 2013Publication date: February 27, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Satoshi MARUSHIMA, Yoshiaki Ohda, Masaharu Shimizu, Tooru Inoue, Yoshikata Kobayashi
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Publication number: 20130307647Abstract: According to an embodiment, when a switchgear operating state is shifted from a close state to a cutoff state, a solenoid lever is pushed and rotated by a plunger of an electromagnetic solenoid for cutoff so that the solenoid lever rotates in a direction opposite from the direction of the urging of a solenoid-lever return spring. A trigger roller pin and the solenoid lever become disengaged from each other, an eccentric pin and a trigger lever are rotated by the urging force from a latch leading end become disengaged from each other, whereby a latch lever is rotated by the released energy of a cutoff spring.Type: ApplicationFiled: July 29, 2013Publication date: November 21, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Satoshi Marushima, Yoshikata Kobayashi, Yoshiaki Ohda, Masaharu Shimizu
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Patent number: 8561734Abstract: A car having a rotatable wheel, the car being able to run by rotating the wheel, the car having a leg used by the car for walking, and an attitude stabilization section for stabilizing an attitude of the car.Type: GrantFiled: February 4, 2010Date of Patent: October 22, 2013Assignee: Chiba Institute of TechnologyInventors: Takayuki Furuta, Masaharu Shimizu, Hideaki Yamato, Yu Okumura, Tetsuo Tawara, Masaki Shimomura, Ken Endo
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Patent number: 8544572Abstract: A car having a rotatable wheel, the car being able to run by rotating the wheel, the car having a leg used by the car for walking, and an attitude stabilization section for stabilizing an attitude of the car.Type: GrantFiled: February 4, 2010Date of Patent: October 1, 2013Assignee: Chiba Institute of TechnologyInventors: Takayuki Furuta, Masaharu Shimizu, Hideaki Yamato, Yu Okumura, Tetsuo Tawara, Masaki Shimomura, Ken Endo
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Patent number: 8420969Abstract: An embodiment of a switchgear has: a closing shaft; a main lever fixed to the closing shaft and associated with a movable contact; a cutoff spring; a sub-shaft; a sub-lever and a latch lever which are connected to the sub-shaft; a roller pin mounted to the leading end of the latch lever; a latch; a latch returning spring for urging the latch; a latch pin fixed to the latch; and a ring mounted to the latch pin so as to be movable in the radial direction of the latch pin. In the closed state, the roller pin presses the leading end of the latch. In power cutoff operation, latch is pulled so as to permit rotation of the latch, engagement between the roller pin and the leading end of the latch is disengaged, and the sub-shaft is rotated by urging by the cutoff spring.Type: GrantFiled: September 14, 2010Date of Patent: April 16, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Marushima, Yoshiaki Ohda, Yoshikata Kobayashi, Masaharu Shimizu, Hirokazu Takagi
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Patent number: 8395067Abstract: According to an embodiment, a switchgear operating mechanism has a roller pin rotatably fixed to a leading end of a latch lever. A latch is fixed to a solenoid lever at a position different from the rotation axis of the solenoid lever, and has a leading end engageable with the roller pin. In a state where the switchgear operating state is shifted from the closed state to the cutoff state, the solenoid lever is pushed by an electromagnetic solenoid for cutoff so as to be rotated in an opposite direction to the biasing direction of the solenoid lever return spring, and the latch lever is rotated by a biasing force of the roller pin to release an engagement between the roller pin and the leading end of the latch, which causes a cutoff spring to discharge its energy to rotate the latch lever.Type: GrantFiled: August 25, 2010Date of Patent: March 12, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Marushima, Yoshikata Kobayashi, Yoshiaki Ohda, Masaharu Shimizu, Tooru Inoue
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Patent number: 8330065Abstract: The time period is shortened till a cutoff spring force is released when a switchgear is cut off. This switchgear comprises: a closing shaft; a main lever fixed turnably on the closing shaft and associated with a movable contact; a closing spring; a sub shaft; a sub lever and a latch lever fixed on the sub shaft; a roller mounted on the leading end of the latch lever; a turnable latch and a kick lever; a lock lever made turnable with respect to the latch; a latch returning spring for biasing the latch; a lock returning spring for biasing the kick lever and the lock lever; and a stopper for restricting the turns of the lock lever and the latch.Type: GrantFiled: January 27, 2010Date of Patent: December 11, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Yoshiaki Ohda, Masaharu Shimizu, Satoshi Marushima, Hirokazu Takagi, Yoshikata Kobayashi
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Publication number: 20120242018Abstract: A piston rod (15) and a first piston (13) are arranged in the interior of an external cylinder (11) and internal cylinder (12); a second piston for absorbing the change of volume of operating fluid (24) is also arranged therein. Also, a first return spring (18) for returning the piston rod (15) to the interruption position is provided and a second return spring (20) for returning the operating fluid 24 into the high-pressure chamber (25) by pressurizing the second piston (14) is provided. In addition, the air in the interior of the buffering device (10) is withdrawn by a vacuum pump (38), and operating fluid (24) is thus introduced in a degassed condition.Type: ApplicationFiled: October 7, 2010Publication date: September 27, 2012Applicant: Kabushiki Kaisha ToshibaInventors: Yoshiaki Ohda, Yoshikata Kobayashi, Masaharu Shimizu, Satoshi Marushima, Hirokazu Takagi, Tooru Inoue
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Publication number: 20110073446Abstract: According to an embodiment, a switchgear operating mechanism has a roller pin rotatably fixed to a leading end of a latch lever. A latch is fixed to a solenoid lever at a position different from the rotation axis of the solenoid lever, and has a leading end engageable with the roller pin. In a state where the switchgear operating state is shifted from the closed state to the cutoff state, the solenoid lever is pushed by an electromagnetic solenoid for cutoff so as to be rotated in an opposite direction to the biasing direction of the solenoid lever return spring, and the latch lever is rotated by a biasing force of the roller pin to release an engagement between the roller pin and the leading end of the latch, which causes a cutoff spring to discharge its energy to rotate the latch lever.Type: ApplicationFiled: August 25, 2010Publication date: March 31, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Satoshi MARUSHIMA, Yoshikata Kobayashi, Yoshiaki Ohda, Masaharu Shimizu, Tooru Inoue
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Patent number: 7901741Abstract: The present invention provides a system which shortens the scanning time with an ink jet head for forming a pattern of filter elements of a color filter, picture element pixels of an electroluminescence (EL) device, or the like. An apparatus for producing a color filter can include a plurality of filter elements arranged on a substrate. The apparatus can further include a plurality of heads each having a nozzle row having a plurality of nozzles arranged, an ink supply device for supplying a filter element material to the heads, a carriage supporting the heads arranged thereon, a main scanning driving device for moving the carriage by main scanning in the X direction, and a sub-scanning driving device for moving the carriage by sub-scanning in the Y direction. The carriage supports the plurality of heads each of which is inclined at an in-plane inclination angle ?.Type: GrantFiled: March 9, 2006Date of Patent: March 8, 2011Assignee: Seiko Epson CorporationInventors: Satoru Katagami, Hisashi Aruga, Hiroshi Kiguchi, Tatsuya Ito, Tomomi Kawase, Masaharu Shimizu