Search

Roy Y. Yi

Examiner (ID: 16305, Phone: (571)270-7804 , Office: P/2852 )

Most Active Art Unit
2852
Art Unit(s)
2896, 2852
Total Applications
1052
Issued Applications
985
Pending Applications
0
Abandoned Applications
78

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 18065076 [patent_doc_number] => 20220396163 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-12-15 [patent_title] => MOTOR UNIT AND MOTOR CONTROL SYSTEM [patent_app_type] => utility [patent_app_number] => 17/775314 [patent_app_country] => US [patent_app_date] => 2020-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5296 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 99 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17775314 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/775314
MOTOR UNIT AND MOTOR CONTROL SYSTEM Sep 13, 2020 Abandoned
Array ( [id] => 17464490 [patent_doc_number] => 20220077796 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-03-10 [patent_title] => MOTOR CONTROLLER [patent_app_type] => utility [patent_app_number] => 17/015040 [patent_app_country] => US [patent_app_date] => 2020-09-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2230 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 121 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17015040 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/015040
Motor controller Sep 7, 2020 Issued
Array ( [id] => 17731350 [patent_doc_number] => 11387754 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-07-12 [patent_title] => Control device and motor drive system [patent_app_type] => utility [patent_app_number] => 17/012703 [patent_app_country] => US [patent_app_date] => 2020-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 5188 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 239 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17012703 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/012703
Control device and motor drive system Sep 3, 2020 Issued
Array ( [id] => 17954262 [patent_doc_number] => 11480361 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-10-25 [patent_title] => Systems and methods for communication with motors in climate control systems [patent_app_type] => utility [patent_app_number] => 16/948112 [patent_app_country] => US [patent_app_date] => 2020-09-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 8265 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 135 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16948112 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/948112
Systems and methods for communication with motors in climate control systems Sep 2, 2020 Issued
Array ( [id] => 17559727 [patent_doc_number] => 11316455 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-04-26 [patent_title] => Generator rotor turn-to-turn fault detection using fractional harmonics [patent_app_type] => utility [patent_app_number] => 17/003477 [patent_app_country] => US [patent_app_date] => 2020-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 14 [patent_no_of_words] => 5345 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17003477 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/003477
Generator rotor turn-to-turn fault detection using fractional harmonics Aug 25, 2020 Issued
Array ( [id] => 18632427 [patent_doc_number] => 20230291338 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-14 [patent_title] => STEP MOTOR DRIVE DEVICE [patent_app_type] => utility [patent_app_number] => 17/763210 [patent_app_country] => US [patent_app_date] => 2020-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 15866 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -19 [patent_words_short_claim] => 150 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17763210 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/763210
Step motor drive device Aug 25, 2020 Issued
Array ( [id] => 18662019 [patent_doc_number] => 20230308036 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-28 [patent_title] => ELECTRIC MOTOR DRIVE DEVICE [patent_app_type] => utility [patent_app_number] => 18/040666 [patent_app_country] => US [patent_app_date] => 2020-08-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9848 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -7 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18040666 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/040666
Electric motor drive device Aug 23, 2020 Issued
Array ( [id] => 16813048 [patent_doc_number] => 20210135603 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-05-06 [patent_title] => MULTIPURPOSE BRAKE [patent_app_type] => utility [patent_app_number] => 16/985590 [patent_app_country] => US [patent_app_date] => 2020-08-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3854 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16985590 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/985590
Multipurpose brake Aug 4, 2020 Issued
Array ( [id] => 16625576 [patent_doc_number] => 20210044229 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-02-11 [patent_title] => MOTOR DRIVE CONTROL DEVICE, MOTOR UNIT, AND MOTOR DRIVE CONTROL METHOD [patent_app_type] => utility [patent_app_number] => 16/939473 [patent_app_country] => US [patent_app_date] => 2020-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7407 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -6 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16939473 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/939473
Motor drive control device, motor unit, and motor drive control method Jul 26, 2020 Issued
Array ( [id] => 18358273 [patent_doc_number] => 11646684 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-05-09 [patent_title] => Average current control in stepper motor [patent_app_type] => utility [patent_app_number] => 16/933583 [patent_app_country] => US [patent_app_date] => 2020-07-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 4256 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 12 [patent_words_short_claim] => 104 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16933583 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/933583
Average current control in stepper motor Jul 19, 2020 Issued
Array ( [id] => 18205963 [patent_doc_number] => 11588373 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2023-02-21 [patent_title] => Kinetic energy recovery system with flywheel [patent_app_type] => utility [patent_app_number] => 16/926950 [patent_app_country] => US [patent_app_date] => 2020-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 18 [patent_no_of_words] => 5799 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 229 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16926950 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/926950
Kinetic energy recovery system with flywheel Jul 12, 2020 Issued
Array ( [id] => 19440402 [patent_doc_number] => 12090634 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-17 [patent_title] => Robot cell for machine tool or assembly machine [patent_app_type] => utility [patent_app_number] => 17/615676 [patent_app_country] => US [patent_app_date] => 2020-07-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 3 [patent_no_of_words] => 4956 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 198 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17615676 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/615676
Robot cell for machine tool or assembly machine Jul 2, 2020 Issued
Array ( [id] => 16561038 [patent_doc_number] => 20210006187 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-01-07 [patent_title] => ELECTRONIC WATCH AND METHOD FOR CONTROLLING ELECTRONIC WATCH [patent_app_type] => utility [patent_app_number] => 16/919340 [patent_app_country] => US [patent_app_date] => 2020-07-02 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 11032 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -8 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16919340 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/919340
Electronic watch and method for controlling electronic watch Jul 1, 2020 Issued
Array ( [id] => 17638678 [patent_doc_number] => 11349417 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-05-31 [patent_title] => Motor control apparatus, image reading apparatus and image forming apparatus [patent_app_type] => utility [patent_app_number] => 16/914697 [patent_app_country] => US [patent_app_date] => 2020-06-29 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 13370 [patent_no_of_claims] => 22 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 293 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16914697 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/914697
Motor control apparatus, image reading apparatus and image forming apparatus Jun 28, 2020 Issued
Array ( [id] => 16348946 [patent_doc_number] => 20200313597 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-10-01 [patent_title] => MOTOR DRIVE APPARATUS [patent_app_type] => utility [patent_app_number] => 16/899893 [patent_app_country] => US [patent_app_date] => 2020-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9461 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -5 [patent_words_short_claim] => 248 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16899893 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/899893
Motor drive apparatus Jun 11, 2020 Issued
Array ( [id] => 17848549 [patent_doc_number] => 11437937 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-09-06 [patent_title] => Control circuit and dishwasher comprising the same [patent_app_type] => utility [patent_app_number] => 16/900066 [patent_app_country] => US [patent_app_date] => 2020-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 3 [patent_no_of_words] => 3575 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16900066 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/900066
Control circuit and dishwasher comprising the same Jun 11, 2020 Issued
Array ( [id] => 16509852 [patent_doc_number] => 20200389108 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-10 [patent_title] => FIELD-ORIENTED SENSORLESS BRUSHLESS MOTOR CONTROL IN A POWER TOOL [patent_app_type] => utility [patent_app_number] => 16/896504 [patent_app_country] => US [patent_app_date] => 2020-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17597 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 155 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16896504 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/896504
Field-oriented sensorless brushless motor control in a power tool Jun 8, 2020 Issued
Array ( [id] => 16509854 [patent_doc_number] => 20200389110 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-12-10 [patent_title] => FIELD-ORIENTED SENSORLESS BRUSHLESS MOTOR CONTROL IN A POWER TOOL [patent_app_type] => utility [patent_app_number] => 16/896510 [patent_app_country] => US [patent_app_date] => 2020-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 17596 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 166 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16896510 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/896510
Field-oriented sensorless brushless motor control in a power tool Jun 8, 2020 Issued
Array ( [id] => 19109101 [patent_doc_number] => 11962219 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-04-16 [patent_title] => Control system and control method of flexible permanent magnet brushless DC motor [patent_app_type] => utility [patent_app_number] => 17/429496 [patent_app_country] => US [patent_app_date] => 2020-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 8162 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 502 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17429496 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/429496
Control system and control method of flexible permanent magnet brushless DC motor Jun 2, 2020 Issued
Array ( [id] => 20539035 [patent_doc_number] => 12556115 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-17 [patent_title] => Reduction of current ripple due to MOSFET switching delays in PWM-based drives [patent_app_type] => utility [patent_app_number] => 18/007691 [patent_app_country] => US [patent_app_date] => 2020-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 13 [patent_no_of_words] => 5896 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 235 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18007691 [rel_patent_id] =>[rel_patent_doc_number] =>)
18/007691
Reduction of current ripple due to MOSFET switching delays in PWM-based drives Jun 2, 2020 Issued
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