Patents by Inventor Yuji Tadano
Yuji Tadano 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: 10618780Abstract: Provided is a crane that can detect obstacles within a sufficient range while traveling and while doing work. A crane that is provided with an obstacle sensor that, during travel, detects the approach of obstacles toward a front side part of a travel body and, during work, detects the approach of obstacles toward a rear side part of a turning body. According to a first embodiment, the obstacle sensor has a detection range that is directed from front to rear. According to a second embodiment, the obstacle sensor has a detection range that is directed from rear to front.Type: GrantFiled: December 8, 2017Date of Patent: April 14, 2020Assignee: TADANO LTD.Inventors: Iwao Ishikawa, Yuji Tadano
-
Publication number: 20190292024Abstract: Provided is a crane that can detect obstacles within a sufficient range while traveling and while doing work. A crane that is provided with an obstacle sensor that, during travel, detects the approach of obstacles toward a front side part of a travel body and, during work, detects the approach of obstacles toward a rear side part of a turning body. According to a first embodiment, the obstacle sensor has a detection range that is directed from front to rear. According to a second embodiment, the obstacle sensor has a detection range that is directed from rear to front.Type: ApplicationFiled: December 8, 2017Publication date: September 26, 2019Applicant: TADANO LTD.Inventors: Iwao ISHIKAWA, Yuji TADANO
-
Patent number: 10384915Abstract: A slewing apparatus includes a control section that performs at least a slewing angular velocity pattern determination process. In the slewing angular velocity pattern determination process, the slewing angular velocity pattern is determined such that in a first interval and a second interval of a control time T that is shorter than a cycle determined by a pendulum length of a suspended load that is in a pendulum motion, a difference between a maximum angular velocity and a minimum angular velocity increases as the control time T decreases.Type: GrantFiled: March 17, 2016Date of Patent: August 20, 2019Assignees: TADANO LTD., HIROSHI YAMAURAInventors: Hiroshi Yamaura, Kazuya Tanizumi, Shinji Noguchi, Yuji Tadano
-
Publication number: 20180111803Abstract: A slewing apparatus includes a control section that performs at least a slewing angular velocity pattern determination process. In the slewing angular velocity pattern determination process, the slewing angular velocity pattern is determined such that in a first interval and a second interval of a control time T that is shorter than a cycle determined by a pendulum length of a suspended load that is in a pendulum motion, a difference between a maximum angular velocity and a minimum angular velocity increases as the control time T decreases.Type: ApplicationFiled: March 17, 2016Publication date: April 26, 2018Applicants: TADANO LTD.Inventors: Hiroshi YAMAURA, Kazuya TANIZUMI, Shinji NOGUCHI, Yuji TADANO
-
Patent number: 7451595Abstract: The driving device includes a bendable shape memory alloy member, a resilient member for applying a tension to the shape memory alloy member in a longitudinal direction thereof, a bending member for bending the shape memory alloy member, and a movable body moved by a displacement of the shape memory alloy member. The bending member contacts the shape memory alloy member, so that the tension is applied to the shape memory alloy member in the longitudinal direction thereof. Compared with the driving device in which the shape memory alloy member is linearly disposed, the decrease in the amount of displacement can be suppressed, so that a space efficiency can be enhanced and the downsizing of the driving device can be accomplished.Type: GrantFiled: April 30, 2004Date of Patent: November 18, 2008Assignee: Mitsubishi Electric CorporationInventors: Noriyuki Komori, Ichihiro Abe, Hiroyuki Miyake, Hideki Kunishio, Yuji Tadano
-
Publication number: 20060207250Abstract: The driving device includes a bendable shape memory alloy member, a resilient member for applying a tension to the shape memory alloy member in a longitudinal direction thereof, a bending member for bending the shape memory alloy member, and a movable body moved by a displacement of the shape memory alloy member. The bending member contacts the shape memory alloy member, so that the tension is applied to the shape memory alloy member in the longitudinal direction thereof. Compared with the driving device in which the shape memory alloy member is linearly disposed, the decrease in the amount of displacement can be suppressed, so that a space efficiency can be enhanced and the downsizing of the driving device can be accomplished.Type: ApplicationFiled: April 30, 2004Publication date: September 21, 2006Inventors: Noriyuki Komori, Ichihiro Abe, Hiroyuki Miyake, Hideki Kunishio, Yuji Tadano
-
Patent number: 5910750Abstract: In order to reduce power consumption of the electronic device while it is inactive, the main switch 32 is shifted to the non-conductive state when the electronic device driven by the battery is stopped and the actuating signal decreases below a predetermined voltage, the actuating signal representing the state where the device is in operation. Thus, the power supplied to the control circuit or the like of the electronic device from the battery becomes zero, should a leak current or the like is ignored, and the power consumption can be reduced. In order to start the electronic device, the switch 34 is turned on and the main switch 32 is forced to the conductive state. That is, when the electronic device is started and the actuating signal exceeds the predetermined voltage, the main switch 32 becomes conductive and the electronic device receives power from the battery. In this state, even if the switch 34 is opened, the main switch 32 still remains conductive unless the actuating signal is stopped.Type: GrantFiled: March 18, 1998Date of Patent: June 8, 1999Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Naofumi Harada, Satoshi Kizawa, Yuji Tadano, Kaoru Kawata
-
Patent number: 5767381Abstract: A centrifuge model test apparatus is accommodated in a pit, and comprises a vertical rotary shaft, a rotary arm horizontally secured to the rotary shaft, a swing bucket suspended from and supported at a pin on the rotary arm and located near the end thereof so as to be movable in the radial direction of the rotary arm or fixed, and a drive unit for rotating the rotary shaft. As the drive unit is driven and the rotational speed of the rotary shaft increases, the swing bucket is raised together with a sample contained therein due to the centrifugal force with the pin as a center and is placed at a nearly horizontal position when a predetermined rotational speed is reached. A partitioning plate provided under the swing bucket is moved upwards at the time when the swing bucket is raised, and the volume and surface area of the space defined by the partitioning plate and the pit reduce, and the frictional force due to the resistance of the air decreases.Type: GrantFiled: January 30, 1997Date of Patent: June 16, 1998Assignee: Hitachi, Ltd.Inventors: Takao Konno, Masaharu Sugano, Yuji Tadano