Patents by Inventor James E. Hill
James E. Hill 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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Systems and methods for high speed modulation of a resonant scanner in ophthalmic laser applications
Patent number: 12514751Abstract: An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.Type: GrantFiled: December 22, 2022Date of Patent: January 6, 2026Assignee: AMO DEVELOPMENT, LLCInventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Zenon Witowski -
Patent number: 12138201Abstract: Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incision. In an embodiment, an ophthalmic surgical laser system comprises a laser delivery system for delivering a pulsed laser beam to a target in a subject's eye, an XY-scan device to deflect the pulsed laser beam, a Z-scan device to modify a depth of a focus of the pulsed laser beam, and a controller configured to form a top lenticular incision and a bottom lenticular incision of a lens in a corneal stroma.Type: GrantFiled: February 15, 2022Date of Patent: November 12, 2024Assignee: AMO Development, LLCInventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Mohammad Saidur Rahaman, Zenon Witowski
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Patent number: 11944575Abstract: Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incisions to form a top lenticular incision, a bottom lenticular incision of a lens in the subject's eye, an added shape between the top and bottom incisions where the added shape has no corrective power and a transition ring bisecting both the top and bottom lenticular incisions.Type: GrantFiled: July 19, 2021Date of Patent: April 2, 2024Assignee: AMO Development, LLCInventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill
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SYSTEMS AND METHODS FOR HIGH SPEED MODULATION OF A RESONANT SCANNER IN OPHTHALMIC LASER APPLICATIONS
Publication number: 20230127288Abstract: An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.Type: ApplicationFiled: December 22, 2022Publication date: April 27, 2023Inventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Zenon Witowski -
Systems and methods for high speed modulation of a resonant scanner in ophthalmic laser applications
Patent number: 11540947Abstract: An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.Type: GrantFiled: October 2, 2020Date of Patent: January 3, 2023Assignee: AMO Development, LLCInventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Zenon Witowski -
Publication number: 20220168144Abstract: Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incision. In an embodiment, an ophthalmic surgical laser system comprises a laser delivery system for delivering a pulsed laser beam to a target in a subject's eye, an XY-scan device to deflect the pulsed laser beam, a Z-scan device to modify a depth of a focus of the pulsed laser beam, and a controller configured to form a top lenticular incision and a bottom lenticular incision of a lens in a corneal stroma.Type: ApplicationFiled: February 15, 2022Publication date: June 2, 2022Inventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Mohammad Saidur Rahaman, Zenon Witowski
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Patent number: 11253398Abstract: Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incision. In an embodiment, an ophthalmic surgical laser system comprises a laser delivery system for delivering a pulsed laser beam to a target in a subject's eye, an XY-scan device to deflect the pulsed laser beam, a Z-scan device to modify a depth of a focus of the pulsed laser beam, and a controller configured to form a top lenticular incision and a bottom lenticular incision of a lens in a corneal stroma.Type: GrantFiled: June 22, 2017Date of Patent: February 22, 2022Assignee: AMO Development, LLCInventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Mohammad Saidur Rahaman, Zenon Witowski
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Publication number: 20210346202Abstract: Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incisions to form a top lenticular incision, a bottom lenticular incision of a lens in the subject's eye, an added shape between the top and bottom incisions where the added shape has no corrective power and a transition ring bisecting both the top and bottom lenticular incisions.Type: ApplicationFiled: July 19, 2021Publication date: November 11, 2021Applicant: AMO Development, LLCInventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill
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Patent number: 11065156Abstract: Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incisions to form a top lenticular incision, a bottom lenticular incision of a lens in the subject's eye, an added shape between the top and bottom incisions where the added shape has no corrective power and a transition ring bisecting both the top and bottom lenticular incisions.Type: GrantFiled: June 29, 2017Date of Patent: July 20, 2021Assignee: AMO DEVELOPMENT, LLCInventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill
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SYSTEMS AND METHODS FOR HIGH SPEED MODULATION OF A RESONANT SCANNER IN OPHTHALMIC LASER APPLICATIONS
Publication number: 20210015668Abstract: An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.Type: ApplicationFiled: October 2, 2020Publication date: January 21, 2021Inventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Zenon Witowski -
Systems and methods for high speed modulation of a resonant scanner in ophthalmic laser applications
Patent number: 10792188Abstract: An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.Type: GrantFiled: October 12, 2017Date of Patent: October 6, 2020Assignee: AMO Development, LLCInventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Zenon Witowski -
SYSTEMS AND METHODS FOR HIGH SPEED MODULATION OF A RESONANT SCANNER IN OPHTHALMIC LASER APPLICATIONS
Publication number: 20190110926Abstract: An ophthalmic surgical laser system includes: a laser that produces a pulsed laser beam having a pulse energy and pulse repetition rate; a high frequency fast scanner; an XY-scan device; a Z-scan device; and a controller. The controller controls the high frequency scanner to produce a scan line having a scan width; controls the XY-scan device and the Z-scan device to carry out of first sweep of the scan line in a first sweep direction and to carry out a second sweep of the scan line in a second sweep direction that is not parallel to the first sweep direction thereby defining an overlap region. At least one of the pulse energy, repetition rate, XY-scan speed, and the scan width is varied so as to accelerate the cutting speed and reduce the exposure of ophthalmic tissue in the overlap region to multiple exposures of laser pulses configured to modify ophthalmic tissue.Type: ApplicationFiled: October 12, 2017Publication date: April 18, 2019Inventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Zenon Witowski -
Publication number: 20180000647Abstract: Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incisions to form a top lenticular incision, a bottom lenticular incision of a lens in the subject's eye, an added shape between the top and bottom incisions where the added shape has no corrective power and a transition ring bisecting both the top and bottom lenticular incisions.Type: ApplicationFiled: June 29, 2017Publication date: January 4, 2018Inventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill
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Publication number: 20170367883Abstract: Embodiments generally relate to ophthalmic laser procedures and, more particularly, to systems and methods for lenticular laser incision. In an embodiment, an ophthalmic surgical laser system comprises a laser delivery system for delivering a pulsed laser beam to a target in a subject's eye, an XY-scan device to deflect the pulsed laser beam, a Z-scan device to modify a depth of a focus of the pulsed laser beam, and a controller configured to form a top lenticular incision and a bottom lenticular incision of a lens in a corneal stroma.Type: ApplicationFiled: June 22, 2017Publication date: December 28, 2017Inventors: Alireza Malek Tabrizi, Hong Fu, James E. Hill, Mohammad Saidur Rahaman, Zenon Witowski
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Publication number: 20140251645Abstract: A method to collect soil cores from a green comprises the steps of providing a soil core collector, extracting soil cores from a green, allowing the cores to dry for at least fifteen minutes, and utilizing the core collector to gather the cores from the green.Type: ApplicationFiled: January 22, 2014Publication date: September 11, 2014Inventor: James E. Hill
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Publication number: 20130048320Abstract: A method to collect soil cores from a green comprises the steps of providing a soil core collector, extracting soil cores from a green, allowing the cores to dry for at least fifteen minutes, and utilizing the core collector to gather the cores from the green.Type: ApplicationFiled: August 24, 2011Publication date: February 28, 2013Inventor: James E. Hill
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Patent number: 6431549Abstract: A sealing method and apparatus involves positioning sealant carriers in a gap between first and second components to be sealed. Sealant is applied to a first major surface of the sealant carriers. As the first and second components are tightened together, the carriers are compressed and cause sealant to travel from the first major surface and through the carriers to a second major surface which is opposed to the first major surface. The sealant carriers may be positioned on respective carrier supports while sealant is being applied to the first major surface of the sealant carriers. The supports are used in initially positioning the sealant carriers in place and then are removed prior to tightening the first and second components together. The supports may include alignment mechanisms for use in aligning the sealant carriers with one of the first and second components. The sealant adheres the sealant carriers to such one of the first and second components following removal of the supports.Type: GrantFiled: January 21, 2000Date of Patent: August 13, 2002Assignee: Freightliner LLCInventors: James E. Hill, James L. Brown, Richard C. Jeffries, Steven W. Hallstrom, James S. Tregaskis
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Patent number: 5046076Abstract: A card counter (10) prints card inventory information locally and communicates with a remote computer (43) for permanent storage and retrieval of inventory information. A microprocessor controller detects a counting error in response to the actual count failing to match a preset count, failing to match a precount information machine read from a machine readable precount label (130) attached to the cards (18), in the event of a phrase error from a pair of parallel scanning card sensor circuits (58, 59) or if the final counts of the two card sensor circuits (58, 59) do not match. In the event of detection of a counting error, an error indication is provided and entry of the count into an accumulator memory is inhibited. The present number is entered into memory by selectively entering an actual count into the preset memory. A pair of separate accumulators are provided for concurrently accumulating totals of two different groups of cards (18).Type: GrantFiled: February 7, 1990Date of Patent: September 3, 1991Assignee: Dynetics Engineering CorporationInventor: James E. Hill
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Patent number: 4995060Abstract: A card counter (10) prints card inventory information locally and communicates with a remote computer (43) for permanent storage and retrieval of inventory information. A microprocessor controller detects a counting error in response to the actual count failing to match a preset count, failing to match a precount information machine read from a machine readable precount label (130) attached to the cards (18), in the event of a phase error from a pair of parallel scanning card sensor circuits (58, 59) or if the final counts of the two card sensor circuits (58, 59) do not match. In the event of detection of a counting error, an error indication is provided and entry of the count into an accumulator memory is inhibited. The preset number is entered into memory by selectively entering an actual count into the preset memory. A pair of separate accumulators are provided for concurrently accumulating totals of two different groups of cards (18).Type: GrantFiled: February 7, 1990Date of Patent: February 19, 1991Assignee: Dynetics Engineering CorporationInventor: James E. Hill
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Patent number: 4978845Abstract: A credit card counter (40) with a self-adjusting card loading apparatus (42) having a card elevator plate (46) for elevating a rack of cards (14) to a position with the top edges (19) aligned with a sensor location (26) for optimal sensing. A spring (56) biases a pivot plate (52) to rotate in a direction to move the card elevator (46) until the top edges (18) abut a card guide member (50) aligned with the sensor location (26) which is located above the cards (14A) and out of path of debris carried by the rack of cards (14). The connection to the elevator plate (46) is by means of a pivot axle (72) and the sides of a slot (44A) in a base plate (44) have a snug fit with the sides of the elevator plate (46), so that relative movement is substantially translational. The elevator plate (44) is lowered sufficiently to allow the edges (18) under the guide member (50) and then permitted to rise to the correct position depending upon the height of the cards (14A).Type: GrantFiled: September 28, 1989Date of Patent: December 18, 1990Assignee: Dynetics Engineering CorporationInventor: James E. Hill