Patents by Inventor Suk-il Oh
Suk-il Oh 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: 8839932Abstract: An apparatus for reducing transmission shock of an automatic transmission may include a piston operated by a control pressure, a clutch performing a clutching operation by an operation of the piston, and a cushion spring arranged between the piston and the clutch which varies by stages in stiffness of the spring with an operating position of the piston. The cushion spring may be formed with one or more sets of a plurality of curved-surface springs bent in an operating direction of the clutch and connected with each other, each set of the plurality of curved-surface springs having a different bending height.Type: GrantFiled: September 13, 2011Date of Patent: September 23, 2014Assignee: Hyundai Motor CompanyInventors: Jin Hyun Kim, Chang Kook Chae, Heung Seok Lee, Suk Il Oh, Wan Soo Oh, Kwang Min Won
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Publication number: 20120292154Abstract: An apparatus for reducing transmission shock of an automatic transmission may include a piston operated by a control pressure, a clutch performing a clutching operation by an operation of the piston, and a cushion spring arranged between the piston and the clutch which varies by stages in stiffness of the spring with an operating position of the piston. The cushion spring may be formed with one or more sets of a plurality of curved-surface springs bent in an operating direction of the clutch and connected with each other, each set of the plurality of curved-surface springs having a different bending height.Type: ApplicationFiled: September 13, 2011Publication date: November 22, 2012Applicant: Hyundai Motor CompanyInventors: Jin Hyun Kim, Chang Kook Chae, Heung Seok Lee, Suk Il Oh, Wan Soo Oh, Kwang Min Won
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Patent number: 7430750Abstract: An optical disc drive including a main frame in which a turntable is provided; a tray on which the optical disc is mounted and which is slidable in the main frame; a cover, which covers a top surface of the main frame and includes a clamper to fix the optical disc in the turntable; and a noise reducer, which is disposed in the cover and causes air generated by rotation of the optical disc circulate from an inner circumference to an outer circumference of the optical disc and from the outer circumference to the inner circumference thereof, thereby reducing noise.Type: GrantFiled: July 22, 2004Date of Patent: September 30, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-yun Lee, Myung-ryul Choi, Eun-hyoung Cho, Suk-il Oh
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Patent number: 7380252Abstract: A disc drive includes a frame in which a spindle motor and an optical pickup are installed, and at least one helmholtz resonator that is installed in the frame to reduce noise of a particular frequency determined by a volume of a resonating tube and a length and diameter of a neck of the resonator, where the helmholtz resonator may be constructed to be united with the frame.Type: GrantFiled: July 23, 2004Date of Patent: May 27, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Suk-il Oh, Myung-ryul Choi
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Patent number: 7185350Abstract: A disk drive including a spindle motor rotating a disk, a pickup unit accessing the disk, a frame where the spindle motor is installed, and a vibration absorber installed on the frame to absorb vibrations due to rotation of the disk, that vibrates in a direction in which an exciting force is offset in horizontal and vertical directions with respect to the frame. Thus, as the vibration absorber vibrates in response to vibration of the frame, in a direction to offset the vibration if the frame, the vibration of the frame can be reduced.Type: GrantFiled: June 17, 2003Date of Patent: February 27, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Soon-kyo Hong, Young-won Lee, Hong-ryul Kim, Suk-il Oh, Jin-tai Chung
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Publication number: 20050086675Abstract: An optical disc drive including a main frame in which a turntable is provided; a tray on which the optical disc is mounted and which is slidable in the main frame; a cover, which covers a top surface of the main frame and includes a clamper to fix the optical disc in the turntable; and a noise reducer, which is disposed in the cover and causes air generated by rotation of the optical disc circulate from an inner circumference to an outer circumference of the optical disc and from the outer circumference to the inner circumference thereof, thereby reducing noise.Type: ApplicationFiled: July 22, 2004Publication date: April 21, 2005Applicant: Samsung Electronics Co., Ltd.Inventors: Sang-yun Lee, Myung-ryul Choi, Eun-hyoung Cho, Suk-il Oh
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Publication number: 20050060728Abstract: A disc drive includes a frame in which a spindle motor and an optical pickup are installed, and at least one helmholtz resonator that is installed in the frame to reduce noise of a particular frequency determined by a volume of a resonating tube and a length and diameter of a neck of the resonator, where the helmholtz resonator may be constructed to be united with the frame.Type: ApplicationFiled: July 23, 2004Publication date: March 17, 2005Applicant: Samsung Electronics Co., Ltd.Inventors: Suk-il Oh, Myung-ryul Choi
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Publication number: 20030231575Abstract: A disk drive including a spindle motor rotating a disk, a pickup unit accessing the disk, a frame where the spindle motor is installed, and a vibration absorber installed on the frame to absorb vibrations due to rotation of the disk, that vibrates in a direction in which an exciting force is offset in horizontal and vertical directions with respect to the frame. Thus, as the vibration absorber vibrates in response to vibration of the frame, in a direction to offset the vibration if the frame, the vibration of the frame can be reduced.Type: ApplicationFiled: June 17, 2003Publication date: December 18, 2003Applicant: Samsung Electronics Co., Ltd.Inventors: Soon-Kyo Hong, Young-Won Lee, Hong-Ryul Kim, Suk-il Oh, Jin-Tai Chung
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Publication number: 20030058779Abstract: A spindle device of a disc drive, including a self-compensating dynamic balancer. The spindle device includes a turntable on which a disc is to be placed, a spindle motor to rotate the turntable, a moving body to compensate for the eccentric center of gravity due to the asymmetry of the disc, and a self-compensating dynamic balancer having a race in which a moving body moves. The self-compensating dynamic balancer includes an annular race encircling the rotational center of the turntable and having a predetermined depth and width, and an annular moving body placed in the race, the annular moving body has an inner diameter wider than that of the race and an outer diameter narrower than that of the race, so that the eccentric center of gravity thereof can be moved in the race.Type: ApplicationFiled: June 11, 2002Publication date: March 27, 2003Applicant: Samsung Electronics Co., Ltd.Inventors: Suk-il Oh, Young-sun Seo, Young-won Lee, Ki-won Yoon