Patents by Inventor Chohei Okuno
Chohei Okuno 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: 7244091Abstract: Herein disclosed is a robot arm mechanism comprising a first arm link mechanism and a second arm link mechanism, a robot arm driving mechanism for driving the first arm link mechanism and the second arm link mechanism, and a link retaining mechanism for pivotably retaining the first arm link mechanism and the second arm link mechanism, in which a third arm link and a fourth arm link of the first arm link mechanism are kept forward in a first rotation direction, in which the first arm link mechanism and the second arm link mechanism are extended, thereby enabling to prevent the quadric crank chain constituting the robot arm mechanism from being flattened out while the first arm link mechanism and the second arm link mechanism are extended, and improving resistance to deformation, in comparison with the conventional robot arm mechanism.Type: GrantFiled: November 28, 2005Date of Patent: July 17, 2007Assignee: Teijin Seiki Co., Ltd.Inventors: Hiroki Mori, Tetsuya Watanabe, Chohei Okuno
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Patent number: 7090222Abstract: Herein disclosed is a shaft sealing apparatus which comprises a vacuum casing formed with a vacuum chamber, a driving shaft having an outer cylindrical surface and movably extending in the vacuum chamber of the vacuum casing, and a sealing ring in the form of an annular ring shape and including a sealing lip held in contact with the outer cylindrical surface of the driving shaft, an annular spring member operative to impart a force to the sealing lip to ensure that the sealing lip is held in tight contact with the outer cylindrical surface of the driving shaft, and a peripheral portion radially outwardly extending from the sealing lip, in which the outer cylindrical surface of the driving shaft is smaller in surface roughness Ra than 0.1 (?m).Type: GrantFiled: October 19, 2001Date of Patent: August 15, 2006Assignee: Teijin Seiki Co., Ltd.Inventors: Tetsuya Watanabe, Hiroki Mori, Chohei Okuno
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Publication number: 20060120849Abstract: Herein disclosed is a robot arm mechanism comprising a first arm link mechanism and a second arm link mechanism, a robot arm driving mechanism for driving the first arm link mechanism and the second arm link mechanism, and a link retaining mechanism for pivotably retaining the first arm link mechanism and the second arm link mechanism, in which a third arm link and a fourth arm link of the first arm link mechanism are kept forward in a first rotation direction, in which the first arm link mechanism and the second arm link mechanism are extended, thereby enabling to prevent the quadric crank chain constituting the robot arm mechanism from being flattened out while the first arm link mechanism and the second arm link mechanism are extended, and improving resistance to deformation, in comparison with the conventional robot arm mechanism.Type: ApplicationFiled: November 28, 2005Publication date: June 8, 2006Applicant: Teijin Seiki Co., Ltd.Inventors: Hiroki Mori, Tetsuya Watanabe, Chohei Okuno
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Patent number: 7055825Abstract: Herein disclosed is a shaft sealing apparatus which comprises a vacuum casing formed with a vacuum chamber, a driving shaft having an outer cylindrical surface and movably extending in the vacuum chamber of the vacuum casing, and a sealing ring in the form of an annular ring shape and including a sealing lip held in contact with the outer cylindrical surface of the driving shaft, an annular spring member operative to impart a force to the sealing lip to ensure that the sealing lip is held in tight contact with the outer cylindrical surface of the driving shaft, and a peripheral portion radially outwardly extending from the sealing lip, in which the outer cylindrical surface of the driving shaft is smaller in surface roughness Ra than 0.1 (?m).Type: GrantFiled: November 24, 2003Date of Patent: June 6, 2006Assignee: Teijin Seiki Co., Ltd.Inventors: Tetsuya Watanabe, Hiroki Mori, Chohei Okuno
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Patent number: 7040852Abstract: Herein disclosed is a robot arm mechanism comprising: a first handling member for supporting and handling a first object; a second handling member for supporting and handling a second object; a first robot arm including a first arm link and a second arm link, the first end portion of the second arm link being pivotably connected to the second end portion of the first arm link, and the second end portion of the second arm link being connected to the first handling member to allow the first handling member to support the first object in a stable condition; a second robot arm including a first arm link and a second arm link, the first end portion of the second arm link being pivotably connected to the second end portion of the first arm link, the second arm link being inclined with respect to the second arm link of the first robot arm at a preset angle defined between the central line of the second arm link of the second robot arm and the central line of the second arm link of the first robot arm, and the secondType: GrantFiled: April 24, 2003Date of Patent: May 9, 2006Assignee: Teijin Seiki Co., Ltd.Inventors: Hiroki Mori, Tetsuya Watanabe, Chohei Okuno
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Patent number: 7001139Abstract: Herein disclosed is a robot arm mechanism comprising a first arm link mechanism and a second arm link mechanism, a robot arm driving mechanism for driving the first arm link mechanism and the second arm link mechanism, and a link retaining mechanism for pivotably retaining the first arm link mechanism and the second arm link mechanism, in which a third arm link and a fourth arm link of the first arm link mechanism are kept forward in a first rotation direction, in which the first arm link mechanism and the second arm link mechanism are extended, thereby enabling to prevent the quadric crank chain constituting the robot arm mechanism from being flattened out while the first arm link mechanism and the second arm link mechanism are extended, and improving resistance to deformation, in comparison with the conventional robot arm mechanism.Type: GrantFiled: December 3, 2002Date of Patent: February 21, 2006Assignee: Teijin Seiki Co., Ltd.Inventors: Hiroki Mori, Tetsuya Watanabe, Chohei Okuno
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Publication number: 20040169337Abstract: Herein disclosed is a shaft sealing apparatus which comprises a vacuum casing formed with a vacuum chamber, a driving shaft having an outer cylindrical surface and movably extending in the vacuum chamber of the vacuum casing, and a sealing ring in the form of an annular ring shape and including a sealing lip held in contact with the outer cylindrical surface of the driving shaft, an annular spring member operative to impart a force to the sealing lip to ensure that the sealing lip is held in tight contact with the outer cylindrical surface of the driving shaft, and a peripheral portion radially outwardly extending from the sealing lip, in which the outer cylindrical surface of the driving shaft is smaller in surface roughness Ra than 0.1 (&mgr;m).Type: ApplicationFiled: November 24, 2003Publication date: September 2, 2004Applicant: Teijin Seiki Co., Ltd.Inventors: Tetsuya Watanabe, Hiroki Mori, Chohei Okuno
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Patent number: 6729201Abstract: A traction drive speed reducer which comprises circumscribed axes 20A and 20B, a plurality of intermediate axes 30A and 30B arranged contacting around the outer periphery of the circumscribed axes, and inscribed cylinders 40A and 40B inscribing the outer periphery of the intermediate axes, and in which a supporting member 10 to rotatably support the intermediate axes is fixed, a drive motor is connected to at least one of the plurality of intermediate axes, and an output is taken from the circumscribed axis having the larger diameter than the outer diameter of the intermediate axis.Type: GrantFiled: July 10, 2001Date of Patent: May 4, 2004Assignee: Teijin Seiki Co., Ltd.Inventors: Hiroki Mori, Tetsuya Watanabe, Chohei Okuno, Takahiro Maekawa
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Patent number: 6705177Abstract: A robot arm mechanism includes a handling member for supporting and handling an object, a robot arm made up of a plurality of links, and a robot arm driving mechanism for driving the robot arm to assume its contracted and extended position. The robot arm comprises first and second arm links, a link retaining mechanism pivotably retaining the first and second arm links and a link operating mechanism to operate one of the first and second arm links by a motion of the other of the first and second arm links. The link operating mechanism comprises a crank, a coupling link and a connecting link. The crank integrally connected to the coupling link is pivotably connected to one of the first and second arms and to the link retaining mechanism. The connecting link is pivotably connected to the other of the first and second arms. This leads to the advantage that the robot arms can be contracted and extended and rotated by only two electric motors.Type: GrantFiled: April 4, 2002Date of Patent: March 16, 2004Assignee: Teijin Seiki Co., Ltd.Inventors: Chohei Okuno, Hiroki Mori, Tetsuya Watanabe
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Publication number: 20030202872Abstract: Herein disclosed is a robot arm mechanism comprising: a first handling member for supporting and handling a first object; a second handling member for supporting and handling a second object; a first robot arm including a first arm link and a second arm link, the first end portion of the second arm link being pivotably connected to the second end portion of the first arm link, and the second end portion of the second arm link being connected to the first handling member to allow the first handling member to support the first object in a stable condition; a second robot arm including a first arm link and a second arm link, the first end portion of the second arm link being pivotably connected to the second end portion of the first arm link, the second arm link being inclined with respect to the second arm link of the first robot arm at a preset angle defined between the central line of the second arm link of the second robot arm and the central line of the second arm link of the first robot arm, and the secondType: ApplicationFiled: April 24, 2003Publication date: October 30, 2003Applicant: Teijin Seiki Co., Ltd.Inventors: Hiroki Mori, Tetsuya Watanabe, Chohei Okuno
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Publication number: 20030103840Abstract: Herein disclosed is a robot arm mechanism comprising a first arm link mechanism and a second arm link mechanism, a robot arm driving mechanism for driving the first arm link mechanism and the second arm link mechanism, and a link retaining mechanism for pivotably retaining the first arm link mechanism and the second arm link mechanism, in which a third arm link and a fourth arm link of the first arm link mechanism are kept forward in a first rotation direction, in which the first arm link mechanism and the second arm link mechanism are extended, thereby enabling to prevent the quadric crank chain constituting the robot arm mechanism from being flattened out while the first arm link mechanism and the second arm link mechanism are extended, and improving resistance to deformation, in comparison with the conventional robot arm mechanism.Type: ApplicationFiled: December 3, 2002Publication date: June 5, 2003Inventors: Hiroki Mori, Tetsuya Watanabe, Chohei Okuno
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Patent number: 6558107Abstract: A robot arm mechanism includes a handling member for supporting and handling an object, a robot arm made up of at least four arm links, and a robot arm driving mechanism for driving the robot arm to assume its contracted and extended position. The robot arm comprises first and second arm links and a link retaining mechanism pivotably retaining the first and second arm links. The link retaining mechanism comprises first and second joint cross linkages similar in shape and each having two arms crossed to each other. The first joint cross linkage is integrally connected with one of the first and second arm links of the robot arm. The second joint cross linkage is integrally connected with the other one of the first and second arm links of the robot arm.Type: GrantFiled: November 1, 1999Date of Patent: May 6, 2003Assignee: Teijin Seiki Co., Ltd.Inventor: Chohei Okuno
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Publication number: 20020144782Abstract: A robot arm mechanism includes a handling member for supporting and handling an object, a robot arm made up of a plurality of links, and a robot arm driving mechanism for driving the robot arm to assume its contracted and extended position. The robot arm comprises first and second arm links, a link retaining mechanism pivotably retaining the first and second arm links and a link operating mechanism to operate one of the first and second arm links by a motion of the other of the first and second arm links. The link operating mechanism comprises a crank, a coupling link and a connecting link. The crank integrally connected to the coupling link is pivotably connected to one of the first and second arms and to the link retaining mechanism. The connecting link is pivotably connected to the other of the first and second arms. This leads to the advantage that the robot arms can be contracted and extended and rotated by only two electric motors.Type: ApplicationFiled: April 4, 2002Publication date: October 10, 2002Inventors: Chohei Okuno, Hiroki Mori, Tetsuya Watanabe
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Publication number: 20020047242Abstract: Herein disclosed is a shaft sealing apparatus which comprises a vacuum casing formed with a vacuum chamber, a driving shaft having an outer cylindrical surface and movably extending in the vacuum chamber of the vacuum casing, and a sealing ring in the form of an annular ring shape and including a sealing lip held in contact with the outer cylindrical surface of the driving shaft, an annular spring member operative to impart a force to the sealing lip to ensure that the sealing lip is held in tight contact with the outer cylindrical surface of the driving shaft, and a peripheral portion radially outwardly extending from the sealing lip, in which the outer cylindrical surface of the driving shaft is smaller in surface roughness Ra than 0.1 (&mgr;m).Type: ApplicationFiled: October 19, 2001Publication date: April 25, 2002Inventors: Tetsuya Watanabe, Hiroki Mori, Chohei Okuno
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Publication number: 20020002869Abstract: A traction drive speed reducer which comprises circumscribed axes 20A and 20B, a plurality of intermediate axes 30A and 30B arranged contacting around the outer periphery of the circumscribed axes, and inscribed cylinders 40A and 40B inscribing the outer periphery of the intermediate axes, and in which a supporting member 10 to rotatably support the intermediate axes is fixed, a drive motor is connected to at least one of the plurality of intermediate axes, and an output is taken from the circumscribed axis having the larger diameter than the outer diameter of the intermediate axis.Type: ApplicationFiled: July 10, 2001Publication date: January 10, 2002Applicant: Teijin Seiki Co., Ltd.Inventors: Hiroki Mori, Tetsuya Watanabe, Chohei Okuno, Takahiro Maekawa