David J. Cho

Array ( [id] => 19253673 [patent_doc_number] => 20240204670 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-06-20 [patent_title] => DIRECT-CURRENT-TO-DIRECT-CURRENT CONVERTER FOR PARALLEL OPERATION [patent_app_type] => utility [patent_app_number] => 18/360990 [patent_app_country] => US [patent_app_date] => 2023-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 12942 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 303 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18360990 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19750099 [patent_doc_number] => 20250038664 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2025-01-30 [patent_title] => DIGITAL CONTROLLER [patent_app_type] => utility [patent_app_number] => 18/361345 [patent_app_country] => US [patent_app_date] => 2023-07-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5858 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 124 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18361345 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19008577 [patent_doc_number] => 20240072648 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-29 [patent_title] => SWITCHING CONTROL CIRCUIT AND POWER FACTOR CORRECTION CIRCUIT [patent_app_type] => utility [patent_app_number] => 18/357371 [patent_app_country] => US [patent_app_date] => 2023-07-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9288 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -12 [patent_words_short_claim] => 143 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18357371 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 20530652 [patent_doc_number] => 12549095 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-02-10 [patent_title] => Common-mode noise cancellation circuit and switching power converter with passive common-mode noise cancellation function [patent_app_type] => utility [patent_app_number] => 18/353952 [patent_app_country] => US [patent_app_date] => 2023-07-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 0 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18353952 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19583024 [patent_doc_number] => 12149156 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2024-11-19 [patent_title] => Bipole power transmission schemes [patent_app_type] => utility [patent_app_number] => 18/352586 [patent_app_country] => US [patent_app_date] => 2023-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 8375 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 492 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18352586 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18758102 [patent_doc_number] => 20230361571 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-11-09 [patent_title] => Power Sharing Regulation for Solid State Transformer by Embedded Digital Equalization [patent_app_type] => utility [patent_app_number] => 18/352703 [patent_app_country] => US [patent_app_date] => 2023-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5769 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 184 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18352703 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18959734 [patent_doc_number] => 20240048061 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-08 [patent_title] => SINGLE-STAGE HALF-BRIDGE POINT OF LOAD CONVERTER WITH QUASI-PEAK CYCLE BY CYCLE CURRENT CONTROLLER [patent_app_type] => utility [patent_app_number] => 18/353062 [patent_app_country] => US [patent_app_date] => 2023-07-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 14237 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18353062 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19901450 [patent_doc_number] => 12279403 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-15 [patent_title] => Power supply system for supplying power to network device [patent_app_type] => utility [patent_app_number] => 18/340907 [patent_app_country] => US [patent_app_date] => 2023-06-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 0 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 187 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18340907 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 20469843 [patent_doc_number] => 12525886 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2026-01-13 [patent_title] => Converter circuit [patent_app_type] => utility [patent_app_number] => 18/338604 [patent_app_country] => US [patent_app_date] => 2023-06-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 0 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 137 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18338604 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18883631 [patent_doc_number] => 20240007000 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-01-04 [patent_title] => ASYMMETRIC HALF BRIDGE FLYBACK CONVERTER [patent_app_type] => utility [patent_app_number] => 18/209779 [patent_app_country] => US [patent_app_date] => 2023-06-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4970 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -11 [patent_words_short_claim] => 113 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18209779 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19453517 [patent_doc_number] => 20240313647 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-09-19 [patent_title] => SYSTEMS AND METHODS FOR USING INTERPHASE TRANSFORMER WINDINGS AS BOOST CONVERTER [patent_app_type] => utility [patent_app_number] => 18/208974 [patent_app_country] => US [patent_app_date] => 2023-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2345 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -13 [patent_words_short_claim] => 139 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18208974 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18697088 [patent_doc_number] => 20230327545 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-12 [patent_title] => POWER FACTOR CORRECTION SWITCHING POWER SUPPLY DEVICE [patent_app_type] => utility [patent_app_number] => 18/334154 [patent_app_country] => US [patent_app_date] => 2023-06-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 5284 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 271 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18334154 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19385406 [patent_doc_number] => 20240275276 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-08-15 [patent_title] => FLYING-CAPACITOR CONVERTER WITH ZERO-VOLTAGE SWITCHING [patent_app_type] => utility [patent_app_number] => 18/331383 [patent_app_country] => US [patent_app_date] => 2023-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4534 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18331383 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 20244610 [patent_doc_number] => 12424944 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-09-23 [patent_title] => Method for fixing an output power limit of a frequency converter and a method for diagnosing conditions of DC-link capacitors [patent_app_type] => utility [patent_app_number] => 18/326315 [patent_app_country] => US [patent_app_date] => 2023-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 0 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18326315 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19086830 [patent_doc_number] => 20240113631 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-04-04 [patent_title] => Control Method of ZVS Flyback Using Transformer Auxiliary Winding [patent_app_type] => utility [patent_app_number] => 18/204274 [patent_app_country] => US [patent_app_date] => 2023-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4714 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [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] => 18204274 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18991750 [patent_doc_number] => 20240063719 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2024-02-22 [patent_title] => Boost Inductor Recirculation Protection based on Switch Node Detection Method [patent_app_type] => utility [patent_app_number] => 18/322419 [patent_app_country] => US [patent_app_date] => 2023-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4505 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 164 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18322419 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18653818 [patent_doc_number] => 20230299660 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-09-21 [patent_title] => SWITCHING SEQUENCE CONTROLLED CURRENT STEERING FOR STACKED HALF BRIDGE CONVERTERS [patent_app_type] => utility [patent_app_number] => 18/322177 [patent_app_country] => US [patent_app_date] => 2023-05-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 13225 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 270 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18322177 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 20081297 [patent_doc_number] => 12355379 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-07-08 [patent_title] => Power conversion system [patent_app_type] => utility [patent_app_number] => 18/136085 [patent_app_country] => US [patent_app_date] => 2023-04-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 22 [patent_figures_cnt] => 22 [patent_no_of_words] => 7338 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 179 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18136085 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 19965294 [patent_doc_number] => 12334817 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-06-17 [patent_title] => DC-DC converter circuit and corresponding method of operation [patent_app_type] => utility [patent_app_number] => 18/132774 [patent_app_country] => US [patent_app_date] => 2023-04-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 2091 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 268 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18132774 [rel_patent_id] =>[rel_patent_doc_number] =>)

Array ( [id] => 18680636 [patent_doc_number] => 20230318298 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2023-10-05 [patent_title] => PHOTOVOLTAIC GRID-CONNECTED SYSTEM AND CONTROL METHOD THEREFOR [patent_app_type] => utility [patent_app_number] => 18/129273 [patent_app_country] => US [patent_app_date] => 2023-03-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7038 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 136 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 18129273 [rel_patent_id] =>[rel_patent_doc_number] =>)