Patents by Inventor Tooru Nagai
Tooru Nagai 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: 11230002Abstract: A robot includes: a base; a swivel body supported rotatable about a first axis; a first arm supported rotatable about a second axis perpendicular to the first axis; a second arm supported rotatable about a third axis parallel to the second axis; and a first wrist element supported rotatable about a fourth axis perpendicular to the third axis and disposed in a same plane as the first axis. A first hollow section penetrating along the first axis is provided in the base and the swivel body; a second hollow section penetrating along the fourth axis is provided in the first wrist element; the first and second arms have shapes allowing a linear object having passed through the first hollow section to be guided to the second hollow section via a space extending along a line connecting intersections of the first and second axes and the third and fourth axes.Type: GrantFiled: February 7, 2020Date of Patent: January 25, 2022Assignee: FANUC CORPORATIONInventors: Toshihiko Inoue, Tomoyuki Motokado, Tooru Nagai
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Patent number: 11135685Abstract: A workpiece support device including a base; a conducting rotary table that supports a workpiece and that is rotatable about a horizontal rotation axis; a motor that rotationally drives the rotary table; a collecting brush disposed on the base slidable on the outer circumferential surface of a conducting shaft fixed to the rotary table and extending along the rotation axis; a connection terminal that is electrically connected to the collecting brush and to which an external cable is connected; and a liquid-proof cover surrounding the collecting brush and the outer circumferential surface of the shaft. The liquid-proof cover includes an upper back-plate portion that is disposed at the same position as the rear end of the motor, and a lower back-plate portion located below the upper back-plate portion and forming a recess. The connection terminal penetrates through the lower back-plate portion and projects into the recess.Type: GrantFiled: June 4, 2020Date of Patent: October 5, 2021Assignee: FANUC CORPORATIONInventors: Toshihiko Inoue, Tooru Nagai
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Publication number: 20210053162Abstract: A workpiece support device including a base; a conducting rotary table that supports a workpiece and that is rotatable about a horizontal rotation axis; a motor that rotationally drives the rotary table; a collecting brush disposed on the base slidable on the outer circumferential surface of a conducting shaft fixed to the rotary table and extending along the rotation axis; a connection terminal that is electrically connected to the collecting brush and to which an external cable is connected; and a liquid-proof cover surrounding the collecting brush and the outer circumferential surface of the shaft. The liquid-proof cover includes an upper back-plate portion that is disposed at the same position as the rear end of the motor, and a lower back-plate portion located below the upper back-plate portion and forming a recess. The connection terminal penetrates through the lower back-plate portion and projects into the recess.Type: ApplicationFiled: June 4, 2020Publication date: February 25, 2021Applicant: FANUC CORPORATIONInventors: Toshihiko INOUE, Tooru NAGAI
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Publication number: 20200290197Abstract: A robot includes: a base; a swivel body supported rotatable about a first axis; a first arm supported rotatable about a second axis perpendicular to the first axis; a second arm supported rotatable about a third axis parallel to the second axis; and a first wrist element supported rotatable about a fourth axis perpendicular to the third axis and disposed in a same plane as the first axis. A first hollow section penetrating along the first axis is provided in the base and the swivel body; a second hollow section penetrating along the fourth axis is provided in the first wrist element; the first and second arms have shapes allowing a linear object having passed through the first hollow section to be guided to the second hollow section via a space extending along a line connecting intersections of the first and second axes and the third and fourth axes.Type: ApplicationFiled: February 7, 2020Publication date: September 17, 2020Applicant: FANUC CORPORATIONInventors: Toshihiko INOUE, Tomoyuki MOTOKADO, Tooru NAGAI
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Patent number: 10722988Abstract: A work table support device capable of adapting to a plurality of applications. The workpiece support device includes a base; a conductive work table rotatably supported on the base; a current-collecting brush that is fixed to the base, slidably contacts an end face of the work table, and supplies electric power to work table, and a cover that is removably attached to the base, surrounds the current-collecting brush and the end face, and includes cover segments that can be assembled and disassembled one another.Type: GrantFiled: August 30, 2018Date of Patent: July 28, 2020Assignee: FANUC CORPORATIONInventors: Toshihiko Inoue, Tomoyuki Motokado, Tooru Nagai
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Patent number: 10406680Abstract: Provided is an industrial robot that includes: a second arm that is provided, at the distal end of a first arm pivotable about a first axis, in a pivotable manner about a second axis parallel to the first axis; and a wrist that is disposed at the distal end of the second arm and that has a plurality of wrist elements, and including the first wrist element provided in a rotatable manner about a longitudinal axis of the second arm. Motors and that drive the wrist elements, are accommodated in a space inside the first wrist element. The second arm is provided with a hollow portion that communicates with the space. A cable to be wired to the motors is wired into the hollow portion from the outside of the second arm and is relayed by a connector fixed to the wall section at the position of the through-hole.Type: GrantFiled: April 6, 2018Date of Patent: September 10, 2019Assignee: FANUC CORPORATIONInventors: Toshihiko Inoue, Tooru Nagai
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Patent number: 10335944Abstract: A robot wrist structure includes a first wrist element, a second wrist element, and a third wrist element which are respectively rotatable about a first axis to a third axis; drive motors for the second and third wrist elements; and gear sets that reduce speeds of rotation of the drive motors. The gear sets respectively include a driven-side large-diameter gear that rotates the second wrist element and a driven-side small-diameter gear that rotates the third wrist element, where the driven-side large-diameter gear and the driven-side small-diameter gear are coaxially arranged so as to be rotatable about the second axis. The small-diameter gear is fixed to a drive-side bevel gear that meshes with a driven-side bevel gear fixed to the third wrist element. The second wrist element includes a first housing that is fixed to the large-diameter gear; and a second housing rotatably supports the third wrist element.Type: GrantFiled: February 3, 2017Date of Patent: July 2, 2019Assignee: FANUC CORPORATIONInventors: Toshihiko Inoue, Shunsuke Abiko, Tooru Nagai
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Publication number: 20190076968Abstract: A work table support device capable of adapting to a plurality of applications. The workpiece support device includes a base; a conductive work table rotatably supported on the base; a current-collecting brush that is fixed to the base, slidably contacts an end face of the work table, and supplies electric power to work table, and a cover that is removably attached to the base, surrounds the current-collecting brush and the end face, and includes cover segments that can be assembled and disassembled one another.Type: ApplicationFiled: August 30, 2018Publication date: March 14, 2019Applicant: FANUC CORPORATIONInventors: Toshihiko Inoue, Tomoyuki Motokado, Tooru Nagai
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Publication number: 20180333844Abstract: Provided is an industrial robot that includes: a second arm that is provided, at the distal end of a first arm pivotable about a first axis, in a pivotable manner about a second axis parallel to the first axis; and a wrist that is disposed at the distal end of the second arm and that has a plurality of wrist elements, and including the first wrist element provided in a rotatable manner about a longitudinal axis of the second arm. Motors and that drive the wrist elements, are accommodated in a space inside the first wrist element. The second arm is provided with a hollow portion that communicates with the space. A cable to be wired to the motors is wired into the hollow portion from the outside of the second arm and is relayed by a connector fixed to the wall section at the position of the through-hole.Type: ApplicationFiled: April 6, 2018Publication date: November 22, 2018Applicant: FANUC CORPORATIONInventors: Toshihiko INOUE, Tooru NAGAI
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Patent number: 10081101Abstract: Provided is a robot arm including an upper arm, a forearm installed at the distal end of the upper arm, a wrist element installed at the distal end of the forearm to be rotatable around an axis line and having a hollow part through which the axis line penetrates, a motor installed in the forearm and rotating the element around the axis line, and a mechanism transmitting rotation of the motor to the element while reducing speed of rotation. The motor includes a rotation center axis extending obliquely downward on the opposite side of the upper arm. The mechanism includes a hypoid gear set including an output hypoid gear fixed to the element coaxially with the axis line and an input hypoid gear, and a gear set including a gear wheel fixed to the input hypoid gear and a pinion fixed to the motor.Type: GrantFiled: March 16, 2017Date of Patent: September 25, 2018Assignee: FANUC CORPORATIONInventors: Toshihiko Inoue, Tooru Nagai
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Publication number: 20170282358Abstract: Provided is a robot arm including an upper arm, a forearm installed at the distal end of the upper arm, a wrist element installed at the distal end of the forearm to be rotatable around an axis line and having a hollow part through which the axis line penetrates, a motor installed in the forearm and rotating the element around the axis line, and a mechanism transmitting rotation of the motor to the element while reducing speed of rotation. The motor includes a rotation center axis extending obliquely downward on the opposite side of the upper arm. The mechanism includes a hypoid gear set including an output hypoid gear fixed to the element coaxially with the axis line and an input hypoid gear, and a gear set including a gear wheel fixed to the input hypoid gear and a pinion fixed to the motor.Type: ApplicationFiled: March 16, 2017Publication date: October 5, 2017Applicant: FANUC CORPORATIONInventors: Toshihiko INOUE, Tooru NAGAI
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Publication number: 20170274524Abstract: A robot wrist structure includes a first wrist element, a second wrist element, and a third wrist element which are respectively rotatable about a first axis to a third axis; drive motors for the second and third wrist elements; and gear sets that reduce speeds of rotation of the drive motors. The gear sets respectively include a driven-side large-diameter gear that rotates the second wrist element and a driven-side small-diameter gear that rotates the third wrist element, where the driven-side large-diameter gear and the driven-side small-diameter gear are coaxially arranged so as to be rotatable about the second axis. The small-diameter gear is fixed to a drive-side bevel gear that meshes with a driven-side bevel gear fixed to the third wrist element. The second wrist element includes a first housing that is fixed to the large-diameter gear; and a second housing rotatably supports the third wrist element.Type: ApplicationFiled: February 3, 2017Publication date: September 28, 2017Applicant: FANUC CORPORATIONInventors: Toshihiko INOUE, Shunsuke ABIKO, Tooru NAGAI
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Patent number: 9664821Abstract: An optical element has a plurality of structures including convex portions or concave portions arranged on a base member surface, wherein the arrangement pitch of the structures is 380 nm to 680 nm and the aspect ratio of the structure is 0.62 to 1.09.Type: GrantFiled: October 16, 2008Date of Patent: May 30, 2017Assignee: DEXERIALS CORPORATIONInventors: Sohmei Endoh, Kazuya Hayashibe, Tooru Nagai
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Patent number: 8309903Abstract: In an optical device, a number of structures having higher portions or lower portions are arranged at a fine pitch equal to or shorter than a wavelength of visible light on a surface of a base. Each of the structures is arranged to form a plurality of arc track rows on the surface of the base, and to form a quasi-hexagonal lattice pattern, and the structure has an elliptical cone or truncated elliptical cone shape having a major axis in a circumferential direction of the arc tracks.Type: GrantFiled: December 9, 2009Date of Patent: November 13, 2012Assignees: Sony Corporation, Sony Disc & Digital Solutions Inc.Inventors: Sohmei Endoh, Kazuya Hayashibe, Tooru Nagai, Ikuhiro Hideta, Shirasagi Toshihiko, Kimitaka Nishimura, Tadao Suzuki
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Publication number: 20100134892Abstract: In an optical device, a number of structures having higher portions or lower portions are arranged at a fine pitch equal to or shorter than a wavelength of visible light on a surface of a base. Each of the structures is arranged to form a plurality of arc track rows on the surface of the base, and to form a quasi-hexagonal lattice pattern, and the structure has an elliptical cone or truncated elliptical cone shape having a major axis in a circumferential direction of the arc tracks.Type: ApplicationFiled: December 9, 2009Publication date: June 3, 2010Applicants: SONY CORPORATION, SONY DISC & DIGITAL SOLUTIONS INC.Inventors: Sohmei Endoh, Kazuya Hayashibe, Tooru Nagai, Ikuhiro Hideta, Toshihiko Shirasagi, Kimitaka Nishimura, Tadao Suzuki
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Patent number: 7633045Abstract: In an optical device, a number of structures having higher portions or lower portions are arranged at a fine pitch equal to or shorter than a wavelength of visible light on a surface of a base. Each of the structures is arranged to form a plurality of arc track rows on the surface of the base, and to form a quasi-hexagonal lattice pattern, and the structure has an elliptical cone or truncated elliptical cone shape having a major axis in a circumferential direction of the arc tracks.Type: GrantFiled: August 21, 2007Date of Patent: December 15, 2009Assignees: Sony Corporation, Sony Disc & Digital Solutions Inc.Inventors: Sohmei Endoh, Kazuya Hayashibe, Tooru Nagai, Ikuhiro Hideta, Shirasagi Toshihiko, Kimitaka Nishimura, Tadao Suzuki
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Publication number: 20090135491Abstract: An optical element has a plurality of structures including convex portions or concave portions arranged on a base member surface, wherein the arrangement pitch of the structures is 380 nm to 680 nm and the aspect ratio of the structure is 0.62 to 1.09.Type: ApplicationFiled: October 16, 2008Publication date: May 28, 2009Applicant: SONY CORPORATIONInventors: Sohmei Endoh, Kazuya Hayashibe, Tooru Nagai
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Publication number: 20080265149Abstract: In an optical device, a number of structures having higher portions or lower portions are arranged at a fine pitch equal to or shorter than a wavelength of visible light on a surface of a base. Each of the structures is arranged to form a plurality of arc track rows on the surface of the base, and to form a quasi-hexagonal lattice pattern, and the structure has an elliptical cone or truncated elliptical cone shape having a major axis in a circumferential direction of the arc tracks.Type: ApplicationFiled: August 21, 2007Publication date: October 30, 2008Applicants: SONY CORPORATION, SONY DISC & DIGITAL SOLUTIONS INC.Inventors: Sohmei Endoh, Kazuya Hayashibe, Tooru Nagai, Ikuhiro Hideta, Toshihiko Shirasagi, Kimitaka Nishimura, Tadao Suzuki
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Patent number: 4964056Abstract: An automatic design system of a logic circuit system includes a storage for storing information about structures and functions of known basic circuits available for a circuit system to be designed, an input device for receiving design specification information about the structures and functions of the circuit to be designed, and a synthesize section for combining the known basic circuits stored in the storage so as to synthesize the desired logic circuit satisfying the design specification information.Type: GrantFiled: March 24, 1988Date of Patent: October 16, 1990Assignee: Hitachi, Ltd.Inventors: Keisuke Bekki, Takayoshi Yokota, Tooru Nagai, Nobuhiro Hamada