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Nagata, Fukuoka

Akira Nagata, Fukuoka JP

Hideo Nagata, Fukuoka JP

Patent application numberDescriptionPublished
20090030550AUTOMATIC MACHINE SYSTEM AND WIRELESS COMMUNICATION METHOD THEREOF - In an automatic machine system comprising a mechanism unit (01-29-2009
20110270443APPARATUS AND METHOD FOR DETECTING CONTACT POSITION OF ROBOT - An apparatus for detecting a contact position where a robot makes contact with an object includes a probe, a probe-position calculating unit, a contact detecting unit, and a contact-position calculating unit. The probe is attached to the robot and is configured to make a displacement in a direction of making contact with the object in an elastic manner. The probe-position calculating unit calculates a position of the probe of the robot in operation. The contact detecting unit detects a contact state of the probe with the object. When the contact state of the probe is detected, the contact-position calculating unit derives the contact position based on a calculated position of the probe.11-03-2011
20110270444SYSTEM AND METHOD FOR JUDGING SUCCESS OR FAILURE OF WORK OF ROBOT - A system for judging success or failure of a work of a robot includes a position command generating unit, a contact position detecting unit, and a work success/failure judging unit. The position command generating unit generates a position command enabling movement of a fingertip of the robot so that a position and posture detecting unit, which is attached to the fingertip of the robot and has an elastic transformation area, is brought into contact with a predetermined position relating to a work target after the predetermined work is performed for the work target by the robot. The contact position detecting unit calculates a contact position that is a position of a tip end of the position and posture detecting unit at the time of being in contact with the predetermined position based on a value of an external force applied to the fingertip and the position of the tip end of the position and posture detecting unit. The work success/failure judging unit judges the predetermined work to be successful when the calculated contact position is within a predetermined range and judges the predetermined work to be failed when the calculated contact position is not within the predetermined range.11-03-2011

Patent applications by Hideo Nagata, Fukuoka JP

Katsuya Nagata, Fukuoka JP

Patent application numberDescriptionPublished
20110284662SHOWER APPARATUS - A shower apparatus F11-24-2011

Masao Nagata, Fukuoka JP

Patent application numberDescriptionPublished
20090078667Boom for Excavation Machine03-26-2009
20090104011Excavation Machine - An objective of the present invention is to provide a counterweight of a power shovel interchangeable with that of a superordinate model without affecting a rear end radius of the shovel at the time of rotation. In the power shovel 04-23-2009
20090129908Arm for Excavation Machine - An object of the present invention is to reduce manufacturing cost and manufacturing man-hour of an arm constituting a working machine in an excavation machine. In an arm 05-21-2009

Satoshi Nagata, Fukuoka JP

Patent application numberDescriptionPublished
20090040893Optical pickup device and optical disk device - An optical pickup device or an optical disk device includes: a light source 02-12-2009
20090040910Optical pickup device and optical disk device - A light source emits light with a first wavelength and light with a second wavelength longer than the first wavelength toward an optical disk from adjacent positions. An optical receiver detects light reflected from the optical disk. An astigmatism-generating element generates light used for focus control in a condition where a focusing position on one of two perpendicular cross sections including an optical axis of the light reflected from the optical disk is located ahead of the optical receiver and a focusing position on the other cross section is located behind the optical receiver are included. The astigmatism-generating element is a Fresnel mirror configured to include a plurality of reflecting mirrors. A level difference between the reflecting mirrors adjacent to each other is distributed in a range from a depth of substantially (natural number/2) times the first wavelength to (natural number/2) times the second wavelength02-12-2009