Patents by Inventor Hirofumi Ienaga
Hirofumi Ienaga 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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Patent number: 10697897Abstract: An inspection system for inspecting a composite material member formed of a composite material has a main body part; an ultrasonic probe connected with the main body part and configured to contact the main surface; an optical sensor part connected to the main body part to be movable in a first direction; and a processor. The ultrasonic probe is configured to input ultrasonic wave to the main surface of the composite material member and to receive reflection wave generated from the ultrasonic wave reflected by the composite material member. The optical sensor part is configured to emit sensor light in a second direction orthogonal to the first direction, and to receive reflection light generated from the sensor light reflected on the intersection surface. The processor is configured to output a measurement result based on the reflection wave and the reflection light.Type: GrantFiled: November 13, 2017Date of Patent: June 30, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hirofumi Ienaga, Keisuke Maruko
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Publication number: 20200181526Abstract: A solution for processing machines includes a lubricating base including polyalkylene glycol, a fluorine-based surfactant or a cationic surfactant, and water. The lubricating base includes at least one of a polyoxyethylene/polyoxypropylene reverse block, an ethylenediamine polyoxyalkylene condensate, polyoxyethylene polyoxypropylene glycol, and an ethylene oxide propylene oxide polymer, as polyalkylene glycol.Type: ApplicationFiled: May 15, 2018Publication date: June 11, 2020Inventors: Hirofumi IENAGA, Taro TAKEUCHI, Hidekazu INAGAKI
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Publication number: 20190170658Abstract: An inspection system for inspecting a composite material member formed of a composite material has a main body part; an ultrasonic probe connected with the main body part and configured to contact the main surface; an optical sensor part connected to the main body part to be movable in a first direction; and a processor. The ultrasonic probe is configured to input ultrasonic wave to the main surface of the composite material member and to receive reflection wave generated from the ultrasonic wave reflected by the composite material member. The optical sensor part is configured to emit sensor light in a second direction orthogonal to the first direction, and to receive reflection light generated from the sensor light reflected on the intersection surface. The processor is configured to output a measurement result based on the reflection wave and the reflection light.Type: ApplicationFiled: November 13, 2017Publication date: June 6, 2019Inventors: Hirofumi IENAGA, Keisuke MARUKO
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Patent number: 10132624Abstract: A normal detection method for measuring the distance to a measurement subject using one or a plurality of distance detectors, and obtaining a normal vector on the measured surface of the measurement subject from the obtained measurement result, wherein: within a three-dimensional space, the straight line linking a first measurement point measured at a first measurement position using a distance detector and a second measurement point measured at a second measurement position different from the first measurement position is set as a first vector; the straight line linking the first measurement point and a third measurement point measured at a third measurement position different from the first measurement position and the second measurement position as a second vector; and a normal vector on the measured surface is obtained by determining the vector product of the first vector and the second vector.Type: GrantFiled: February 28, 2012Date of Patent: November 20, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshihito Fujita, Mikio Nakamura, Hirofumi Ienaga
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Patent number: 9619433Abstract: A normal-line detection method for finding the normal vector of a measurement surface of a measurement target by means of at least one distance detector and calculating the normal vector from the measurement results thus obtained is provided. The normal vector of the measurement surface is found by calculating the exterior product of a first vector which connects a first measurement point and a second measurement point and a second vector which connects a third measurement point and a fourth measurement point and is shifted in parallel such that an end thereof is set at any one of the first measurement point and the second measurement point.Type: GrantFiled: February 27, 2013Date of Patent: April 11, 2017Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshihito Fujita, Mikio Nakamura, Hirofumi Ienaga
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Patent number: 9486859Abstract: A drill that exhibits improved drill-hole depth precision is provided. Said drill, which uses a tool (T) mounted to a main shaft (16) to drill a countersunk hole (Wh) into a workpiece (W), is provided with the following: a pressure foot (17) that presses on the surface of the workpiece (W) and suppresses vibration thereof; and a displacement sensor (18) that measures the distance (L), in the axial direction of the main shaft (16), between the pressure foot (17) pressing on the workpiece (W) and the end face (16a) of the main shaft (16), which is set to a prescribed reference distance (Lo). The axial position of the main shaft (16) is corrected using a correction distance (?L), i.e. the difference between the distance (L) measured by the displacement sensor (18) and the reference distance (Lo).Type: GrantFiled: February 24, 2012Date of Patent: November 8, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshihito Fujita, Mikio Nakamura, Hirofumi Ienaga
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Patent number: 9429412Abstract: A hole-shape measuring apparatus is provided with a hole diameter measuring mechanism which measures the diameter of a flush bolt hole, and a countersunk head depth measuring mechanism which measures a countersunk head depth. The hole diameter measuring mechanism has a hole diameter measuring rod configured so as to be inserted into a constant portion at a tip portion and displaced according to the diameter of the constant portion, and a hole diameter measuring sensor which measures the amount of displacement of the hole diameter measuring rod. The countersunk head depth measuring mechanism has a countersunk head depth measuring rod configured so as to be inserted into a countersunk head portion at a tip portion and displaced according to the countersunk head depth, and a countersunk head depth measuring sensor which measures the amount of displacement of the countersunk head depth measuring rod.Type: GrantFiled: January 18, 2013Date of Patent: August 30, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Mikio Nakamura, Hirofumi Ienaga, Yoshihito Fujita, Kazuo Okamoto
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Publication number: 20150040414Abstract: A hole-shape measuring apparatus is provided with a hole diameter measuring mechanism which measures the diameter of a flush bolt hole, and a countersunk head depth measuring mechanism which measures a countersunk head depth. The hole diameter measuring mechanism has a hole diameter measuring rod configured so as to be inserted into a constant portion at a tip portion and displaced according to the diameter of the constant portion, and a hole diameter measuring sensor which measures the amount of displacement of the hole diameter measuring rod. The countersunk head depth measuring mechanism has a countersunk head depth measuring rod configured so as to be inserted into a countersunk head portion at a tip portion and displaced according to the countersunk head depth, and a countersunk head depth measuring sensor which measures the amount of displacement of the countersunk head depth measuring rod.Type: ApplicationFiled: January 18, 2013Publication date: February 12, 2015Applicant: Mitsubishi Heavy Industries, LTD.Inventors: Mikio Nakamura, Hirofumi Ienaga, Yoshihito Fujita, Kazuo Okamoto
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Publication number: 20150016903Abstract: A drill that exhibits improved drill-hole depth precision is provided. Said drill, which uses a tool (T) mounted to a main shaft (16) to drill a countersunk hole (Wh) into a workpiece (W), is provided with the following: a pressure foot (17) that presses on the surface of the workpiece (W) and suppresses vibration thereof; and a displacement sensor (18) that measures the distance (L), in the axial direction of the main shaft (16), between the pressure foot (17) pressing on the workpiece (W) and the end face (16a) of the main shaft (16), which is set to a prescribed reference distance (Lo). The axial position of the main shaft (16) is corrected using a correction distance (?L), i.e. the difference between the distance (L) measured by the displacement sensor (18) and the reference distance (Lo).Type: ApplicationFiled: February 24, 2012Publication date: January 15, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshihito Fujita, Mikio Nakamura, Hirofumi Ienaga
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Publication number: 20150019164Abstract: A normal detection method for measuring the distance to a measurement subject using one or more distance detectors, and obtaining a normal vector (Vn) on the measured surface of the measurement subject from the obtained measurement result (L), wherein: within a three-dimensional space, the straight line linking a first measurement point (Qa) measured at a first measurement position (Pa) using the distance detector and a second measurement point (Qd) measured at a second measurement position (Pd) different from the first measurement position (Pa) is set as a first vector (Vad); the straight line linking the first measurement point (Qa) and a third measurement point (Qf) measured at a third measurement position (Pf) different from the first measurement position (Pa) and the second measurement position (Pd) as a second vector (Vaf); and a normal vector (Vn) on the measured surface is obtained by determining the vector product of the first vector (Vad) and the second vector (Vaf).Type: ApplicationFiled: February 28, 2012Publication date: January 15, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshihito Fujita, Mikio Nakamura, Hirofumi Ienaga
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Patent number: 4953910Abstract: A control device for controlling the operation of an openable roof of a wheeled motor vehicle. The device comprises three slide mechanisms arranged on mutually spaced portions of the body of the vehicle, each slide mechanism including a carrier device which carries thereon the openable roof for moving the openable roof between a full close position and a full open position; three electric actuators which are respectively connected to the three slide mechanisms for moving, when electrically energized, the carrier devices between positions corresponding to the full closed position of the openable roof and the other positions corresponding to the full open position of the openable roof. Latch assemblies are provided for latching at least two of the carrier devices relative to the vehicle body when the openable roof comes to one of the full close and full open positions. The operation of three electric actuators are controlled to function together to open and close the openable roof.Type: GrantFiled: October 18, 1988Date of Patent: September 4, 1990Assignees: Nissan Motor Co., Ltd., Ohi Seisakusho Co., Ltd.Inventors: Junichi Maekawa, Masanori Abe, Hirofumi Ienaga, Shigeaki Hashimoto
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Patent number: D293095Type: GrantFiled: October 29, 1985Date of Patent: December 8, 1987Assignee: Nissan Motor Co., Ltd.Inventor: Hirofumi Ienaga
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Patent number: D295899Type: GrantFiled: October 29, 1985Date of Patent: May 24, 1988Assignee: Nissan Motor Co., Ltd.Inventors: Hirofumi Ienaga, Thomas H. Semple