Patents by Inventor Choryon Oh
Choryon 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: 11908654Abstract: To realize both toughness and size reduction of a safety switch. A safety switch is a safety switch into and from which a bolt of an actuator is inserted and pulled out. The safety switch includes a casing having a shape elongated along a first direction, a metal head having a receiving space for receiving the bolt of the actuator and provided on a first end side of the casing in the first direction, a detector for detecting a first state in which the bolt is received in the receiving space, a lock mechanism, a switching device and a first attachment portion provided in the head and having a first attachment hole into which a first attachment member is inserted.Type: GrantFiled: December 9, 2022Date of Patent: February 20, 2024Assignee: KEYENCE CORPORATIONInventors: Choryon Oh, Yu Babasaki, Lye Tatt Cheah
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Publication number: 20240055208Abstract: A worker is prevented from being hindered. A safety switch includes a switch body including an electromagnet and an actuator attracted to the electromagnet. The switch body includes a drive control unit and a safety control unit which control the safety switch, and the drive control unit and the safety control unit are surrounded by a housing. The housing is arranged on a back surface side of the electromagnet of the switch body, and the housing forms an accommodating portion that accommodates the drive control unit and the safety control unit.Type: ApplicationFiled: August 2, 2023Publication date: February 15, 2024Applicant: Keyence CorporationInventors: Kenji KOJIMA, Satoru TOMOSHI, Hiroshi KASHIMA, Choryon OH, Manabu TSUBOYAMA
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Patent number: 11867494Abstract: Provided is an optical displacement sensor that allows a housing serving as a head to be downsized. A relay cable extending from the head is integrated with a body. The head is primarily responsible for projecting and receiving light to and from a to-be-detected object, while the body is made up of a power supply circuit, a display, and an operation part. The head includes a green laser light source and emits the green laser light to form a spot on a surface of the to-be-detected object.Type: GrantFiled: March 9, 2021Date of Patent: January 9, 2024Assignee: KEYENCE CORPORATIONInventors: Daiki Matsumoto, Choryon Oh
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Publication number: 20230104627Abstract: To realize both toughness and size reduction of a safety switch. A safety switch is a safety switch into and from which a bolt of an actuator is inserted and pulled out. The safety switch includes a casing having a shape elongated along a first direction, a metal head having a receiving space for receiving the bolt of the actuator and provided on a first end side of the casing in the first direction, a detector for detecting a first state in which the bolt is received in the receiving space, a lock mechanism, a switching device and a first attachment portion provided in the head and having a first attachment hole into which a first attachment member is inserted.Type: ApplicationFiled: December 9, 2022Publication date: April 6, 2023Applicant: Keyence CorporationInventors: Choryon Oh, Yu Babasaki, Lye Tatt Cheah
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Patent number: 11551884Abstract: To realize both toughness and size reduction of a safety switch. A safety switch is a safety switch into and from which a bolt of an actuator is inserted and pulled out. The safety switch includes a casing having a shape elongated along a first direction, a metal head having a receiving space for receiving the bolt of the actuator and provided on a first end side of the casing in the first direction, a detector for detecting a first state in which the bolt is received in the receiving space, a lock mechanism, a switching device and a first attachment portion provided in the head and having a first attachment hole into which a first attachment member is inserted.Type: GrantFiled: February 8, 2019Date of Patent: January 10, 2023Assignee: KEYENCE CORPORATIONInventors: Choryon Oh, Yu Babasaki, Lye Tatt Cheah
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Publication number: 20210318115Abstract: Provided is an optical displacement sensor that allows a housing serving as a head to be downsized. A relay cable extending from the head is integrated with a body. The head is primarily responsible for projecting and receiving light to and from a to-be-detected object, while the body is made up of a power supply circuit, a display, and an operation part. The head includes a green laser light source and emits the green laser light to form a spot on a surface of the to-be-detected object.Type: ApplicationFiled: March 9, 2021Publication date: October 14, 2021Applicant: Keyence CorporationInventors: Daiki MATSUMOTO, Choryon OH
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Publication number: 20210318437Abstract: Provided is a displacement sensor having a modular structure that allows further downsizing. A housing of a head is made up of a main housing and a lid member, both of which are precision molded products made of a metal material. A first holder to which a light projector is bonded and a second holder to which a light receiver is bonded are individually positioned on and bonded to the lid member. This work is performed by a mounting device. Optical components such as a light projecting lens are also bonded to the lid member, and the lid member modularized by incorporating such optical components is assembled and welded to the main housing.Type: ApplicationFiled: March 9, 2021Publication date: October 14, 2021Applicant: Keyence CorporationInventors: Sohei KANODA, Shinichiro OTSU, Choryon OH
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Patent number: 10620039Abstract: To provide a connecting structure for a signal cable capable of securing a sufficient display area concerning a display in a photoelectric switch. A photoelectric switch includes a housing having a substantially rectangular parallelepiped shape. A display 5 is provided on a first surface of the housing and includes a display region. A signal cable 51 connects a control board and the display 5. The display 5 includes a connecting section 70a connected to the signal cable 51. The connecting section 70a is disposed between the display region and the signal cable in the longitudinal direction of the housing. Consequently, a connecting structure for the signal cable 5 capable of securing a sufficient display area concerning the display 5 in the photoelectric switch is provided.Type: GrantFiled: August 10, 2018Date of Patent: April 14, 2020Assignee: Keyence CorporationInventor: Choryon Oh
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Patent number: 10620040Abstract: To make a display in a photoelectric switch easy to see for a user. A photoelectric switch includes a housing having a substantially rectangular parallelepiped shape. A display is attached to a first surface of the outer surface of the housing. A control board is housed on the inside of the housing. A controller is mounted on the control board. The first surface includes a hole-like or cutout-like opening section for allowing a signal cable to pass from the outside to the inside of the housing. The signal cable electrically connects the control board disposed on the inside of the housing and the display disposed on the outside of the housing. A cover member includes a window section for exposing a display region of the display and covers a non-display region of the display. The cover member is provided outside the housing.Type: GrantFiled: August 10, 2018Date of Patent: April 14, 2020Assignee: Keyence CorporationInventors: Choryon Oh, Kenji Kojima
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Publication number: 20190316381Abstract: To realize both toughness and size reduction of a safety switch. A safety switch is a safety switch into and from which a bolt of an actuator is inserted and pulled out. The safety switch includes a casing having a shape elongated along a first direction, a metal head having a receiving space for receiving the bolt of the actuator and provided on a first end side of the casing in the first direction, a detector for detecting a first state in which the bolt is received in the receiving space, a lock mechanism, a switching device and a first attachment portion provided in the head and having a first attachment hole into which a first attachment member is inserted.Type: ApplicationFiled: February 8, 2019Publication date: October 17, 2019Applicant: Keyence CorporationInventors: Choryon Oh, Yu Babasaki, Lye Tatt Cheah
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Publication number: 20190094068Abstract: To make a display in a photoelectric switch easy to see for a user. A photoelectric switch includes a housing having a substantially rectangular parallelepiped shape. A display is attached to a first surface of the outer surface of the housing. A control board is housed on the inside of the housing. A controller is mounted on the control board. The first surface includes a hole-like or cutout-like opening section for allowing a signal cable to pass from the outside to the inside of the housing. The signal cable electrically connects the control board disposed on the inside of the housing and the display disposed on the outside of the housing. A cover member includes a window section for exposing a display region of the display and covers a non-display region of the display. The cover member is provided outside the housing.Type: ApplicationFiled: August 10, 2018Publication date: March 28, 2019Applicant: Keyence CorporationInventors: Choryon Oh, Kenji Kojima
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Publication number: 20190094067Abstract: To provide a connecting structure for a signal cable capable of securing a sufficient display area concerning a display in a photoelectric switch. A photoelectric switch includes a housing having a substantially rectangular parallelepiped shape. A display 5 is provided on a first surface of the housing and includes a display region. A signal cable 51 connects a control board and the display 5. The display 5 includes a connecting section 70a connected to the signal cable 51. The connecting section 70a is disposed between the display region and the signal cable in the longitudinal direction of the housing. Consequently, a connecting structure for the signal cable 5 capable of securing a sufficient display area concerning the display 5 in the photoelectric switch is provided.Type: ApplicationFiled: August 10, 2018Publication date: March 28, 2019Applicant: Keyence CorporationInventor: Choryon Oh
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Patent number: 9933511Abstract: Provided is a safety scanner capable of obtaining uniform optical performance for a view angle of 180° or more. The safety scanner includes an optical rotator that emits detection light from a light source to a detection area and causes the detection light to perform scanning in a circumferential direction, a light receiving element that receives reflected light from an object within the detection area through the optical rotator, a casing that houses the light receiving element. The casing includes a canopy part, a bottom part facing the canopy part, and a coupling part that couples a rear end of the canopy part to a rear end of the bottom part. The protective cover includes a window formed in a circular arc shape, corresponding to an optical path of the detection light and the reflected light, having a central angle larger than 180° with respect to the rotation axis.Type: GrantFiled: January 20, 2017Date of Patent: April 3, 2018Assignee: Keyence CorporationInventor: Choryon Oh
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Publication number: 20170242101Abstract: Provided is a safety scanner capable of obtaining uniform optical performance for a view angle of 180° or more. The safety scanner includes an optical rotator that emits detection light from a light source to a detection area and causes the detection light to perform scanning in a circumferential direction, a light receiving element that receives reflected light from an object within the detection area through the optical rotator, a casing that houses the light receiving element. The casing includes a canopy part, a bottom part facing the canopy part, and a coupling part that couples a rear end of the canopy part to a rear end of the bottom part. The protective cover includes a window formed in a circular arc shape, corresponding to an optical path of the detection light and the reflected light, having a central angle larger than 180° with respect to the rotation axis.Type: ApplicationFiled: January 20, 2017Publication date: August 24, 2017Applicant: Keyence CorporationInventor: Choryon OH
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Patent number: 8069007Abstract: This invention provides a light scanning photoelectric switch with which various settings of the light scanning photoelectric switch such as setting of a protection area can be easily set. The light scanning photoelectric switch includes: a display unit having a display screen that displays information including at least one of a status of a safety function of the light scanning photoelectric switch, and information of a failure status; and an operating unit provided in vicinity of the display unit, and for switching the information displayed in the display screen to different one of the safety signal, the result of the determination, setting contents of the light scanning photoelectric switch, the status of the safety function of the light scanning photoelectric switch, and the information of the failure status.Type: GrantFiled: April 21, 2009Date of Patent: November 29, 2011Assignee: Keyence CorporationInventor: Choryon Oh
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Publication number: 20090287453Abstract: This invention provides a light scanning photoelectric switch with which various settings of the light scanning photoelectric switch such as setting of a protection area can be easily set. The light scanning photoelectric switch includes: a display unit having a display screen that displays information including at least one of a status of a safety function of the light scanning photoelectric switch, and information of a failure status; and an operating unit provided in vicinity of the display unit, and for switching the information displayed in the display screen to different one of the safety signal, the result of the determination, setting contents of the light scanning photoelectric switch, the status of the safety function of the light scanning photoelectric switch, and the information of the failure status.Type: ApplicationFiled: April 21, 2009Publication date: November 19, 2009Applicant: KEYENCE CORPORATIONInventor: Choryon Oh
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Patent number: 7249884Abstract: In the head portion, the thermopile is arranged substantially in the center of the head portion. The preamplifier board is arranged near the thermopile. The heat diffusion member made of a high heat conductive material is arranged so as to surround the thermopile and the preamplifier board. The main board and the laser diode are arranged between the upper surface of the head casing and the upper surface of the heat diffusion member. The power supply board and the laser diode are arranged between the down surface of the head casing and the down surface of the heat diffusion member. The thermopile, the preamplifier board, the main board, the power supply board, and the laser diodes are arranged out of contact with the heat diffusion member.Type: GrantFiled: December 30, 2005Date of Patent: July 31, 2007Assignee: Keyence CorporationInventors: Tomonari Torii, Choryon Oh
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Publication number: 20060153273Abstract: In the head portion, the thermopile is arranged substantially in the center of the head portion. The preamplifier board is arranged near the thermopile. The heat diffusion member made of a high heat conductive material is arranged so as to surround the thermopile and the preamplifier board. The main board and the laser diode are arranged between the upper surface of the head casing and the upper surface of the heat diffusion member. The power supply board and the laser diode are arranged between the down surface of the head casing and the down surface of the heat diffusion member. The thermopile, the preamplifier board, the main board, the power supply board, and the laser diodes are arranged out of contact with the heat diffusion member.Type: ApplicationFiled: December 30, 2005Publication date: July 13, 2006Inventors: Tomonari Torii, Choryon Oh