Search

Un C. Cho

Supervisory Patent Examiner (ID: 2269, Phone: (571)272-7919 , Office: P/2413 )

Most Active Art Unit
2617
Art Unit(s)
4115, 2687, 2682, 2413, 4133, 2617
Total Applications
395
Issued Applications
240
Pending Applications
26
Abandoned Applications
133

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 12108812 [patent_doc_number] => 09865300 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-01-09 [patent_title] => 'Magnetic tape abrasivity measurement' [patent_app_type] => utility [patent_app_number] => 15/473811 [patent_app_country] => US [patent_app_date] => 2017-03-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 13 [patent_no_of_words] => 7343 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 262 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15473811 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/473811
Magnetic tape abrasivity measurement Mar 29, 2017 Issued
Array ( [id] => 14332503 [patent_doc_number] => 10297275 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-05-21 [patent_title] => Magnetic recording module having differing tunnel valve sensors [patent_app_type] => utility [patent_app_number] => 15/469322 [patent_app_country] => US [patent_app_date] => 2017-03-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 25 [patent_no_of_words] => 10318 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 107 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15469322 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/469322
Magnetic recording module having differing tunnel valve sensors Mar 23, 2017 Issued
Array ( [id] => 17289186 [patent_doc_number] => 11205749 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-12-21 [patent_title] => Spintronic devices, duplexers, transceivers and telecommunication devices [patent_app_type] => utility [patent_app_number] => 16/474575 [patent_app_country] => US [patent_app_date] => 2017-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 18 [patent_no_of_words] => 16071 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 117 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16474575 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/474575
Spintronic devices, duplexers, transceivers and telecommunication devices Mar 22, 2017 Issued
Array ( [id] => 13451219 [patent_doc_number] => 20180277152 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-09-27 [patent_title] => TAPE HEAD HAVING SUB-AMBIENT CHANNEL AND METHODS OF MANUFACTURE [patent_app_type] => utility [patent_app_number] => 15/467906 [patent_app_country] => US [patent_app_date] => 2017-03-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9485 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -14 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15467906 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/467906
Tape head having sub-ambient channel and methods of manufacture Mar 22, 2017 Issued
Array ( [id] => 12334065 [patent_doc_number] => 09947354 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-04-17 [patent_title] => Utilization of multiple writer modules for simultaneously writing two times the number of data tracks in a compact form factor [patent_app_type] => utility [patent_app_number] => 15/464081 [patent_app_country] => US [patent_app_date] => 2017-03-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 21 [patent_no_of_words] => 11990 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15464081 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/464081
Utilization of multiple writer modules for simultaneously writing two times the number of data tracks in a compact form factor Mar 19, 2017 Issued
Array ( [id] => 14364147 [patent_doc_number] => 10303376 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2019-05-28 [patent_title] => Data storage library with pass-through connected media acclimation chamber [patent_app_type] => utility [patent_app_number] => 15/460357 [patent_app_country] => US [patent_app_date] => 2017-03-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 19 [patent_no_of_words] => 15618 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 208 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15460357 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/460357
Data storage library with pass-through connected media acclimation chamber Mar 15, 2017 Issued
Array ( [id] => 15702901 [patent_doc_number] => 10607635 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2020-03-31 [patent_title] => Abrasion test methods and devices [patent_app_type] => utility [patent_app_number] => 15/446976 [patent_app_country] => US [patent_app_date] => 2017-03-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 13 [patent_no_of_words] => 5064 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 57 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15446976 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/446976
Abrasion test methods and devices Feb 28, 2017 Issued
Array ( [id] => 12477075 [patent_doc_number] => 09990944 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-06-05 [patent_title] => Tunnel valve magnetic tape head for multichannel tape recording [patent_app_type] => utility [patent_app_number] => 15/445877 [patent_app_country] => US [patent_app_date] => 2017-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 26 [patent_no_of_words] => 14330 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 151 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15445877 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/445877
Tunnel valve magnetic tape head for multichannel tape recording Feb 27, 2017 Issued
Array ( [id] => 13084655 [patent_doc_number] => 10062398 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-08-28 [patent_title] => Magnetic head having arrays of tunnel valve read transducers [patent_app_type] => utility [patent_app_number] => 15/445870 [patent_app_country] => US [patent_app_date] => 2017-02-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 26 [patent_no_of_words] => 12718 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15445870 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/445870
Magnetic head having arrays of tunnel valve read transducers Feb 27, 2017 Issued
Array ( [id] => 12235816 [patent_doc_number] => 20180068679 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-03-08 [patent_title] => 'MAGNETIC HEAD AND MAGNETIC RECORDING AND REPRODUCING DEVICE' [patent_app_type] => utility [patent_app_number] => 15/443760 [patent_app_country] => US [patent_app_date] => 2017-02-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 13429 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15443760 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/443760
MAGNETIC HEAD AND MAGNETIC RECORDING AND REPRODUCING DEVICE Feb 26, 2017 Abandoned
Array ( [id] => 12012425 [patent_doc_number] => 09805745 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2017-10-31 [patent_title] => 'Magnetic recording and reproducing device comprising a magnetic head including a trailing shield and first and second shields having alternating magnetic and nonmagnetic layers' [patent_app_type] => utility [patent_app_number] => 15/442312 [patent_app_country] => US [patent_app_date] => 2017-02-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 15 [patent_no_of_words] => 8461 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 180 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15442312 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/442312
Magnetic recording and reproducing device comprising a magnetic head including a trailing shield and first and second shields having alternating magnetic and nonmagnetic layers Feb 23, 2017 Issued
Array ( [id] => 12214624 [patent_doc_number] => 09911438 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2018-03-06 [patent_title] => 'Magnetic recording and reproducing device comprising a magnetic head first reproducing unit including a magnetic field generator' [patent_app_type] => utility [patent_app_number] => 15/437920 [patent_app_country] => US [patent_app_date] => 2017-02-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 18 [patent_no_of_words] => 13742 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 102 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15437920 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/437920
Magnetic recording and reproducing device comprising a magnetic head first reproducing unit including a magnetic field generator Feb 20, 2017 Issued
Array ( [id] => 12088881 [patent_doc_number] => 09842614 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2017-12-12 [patent_title] => 'Heater design for fly height control' [patent_app_type] => utility [patent_app_number] => 15/435676 [patent_app_country] => US [patent_app_date] => 2017-02-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 10 [patent_no_of_words] => 4171 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 84 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15435676 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/435676
Heater design for fly height control Feb 16, 2017 Issued
Array ( [id] => 13363257 [patent_doc_number] => 20180233168 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-16 [patent_title] => HEAT-ASSISTED REMOVAL OF HEAD CONTAMINATION [patent_app_type] => utility [patent_app_number] => 15/433829 [patent_app_country] => US [patent_app_date] => 2017-02-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 3836 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 48 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15433829 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/433829
Heat-assisted removal of head contamination Feb 14, 2017 Issued
Array ( [id] => 13320293 [patent_doc_number] => 20180211684 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-26 [patent_title] => SHORTING TOLERANT TUNNEL VALVE HEAD AND CIRCUIT [patent_app_type] => utility [patent_app_number] => 15/414506 [patent_app_country] => US [patent_app_date] => 2017-01-24 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9710 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -22 [patent_words_short_claim] => 38 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15414506 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/414506
Shorting tolerant tunnel valve head and circuit Jan 23, 2017 Issued
Array ( [id] => 13950225 [patent_doc_number] => 10210891 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2019-02-19 [patent_title] => Dual writer head design utilizing two writers of different sizes for writing interlaced data tracks [patent_app_type] => utility [patent_app_number] => 15/411085 [patent_app_country] => US [patent_app_date] => 2017-01-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 4746 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15411085 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/411085
Dual writer head design utilizing two writers of different sizes for writing interlaced data tracks Jan 19, 2017 Issued
Array ( [id] => 11605478 [patent_doc_number] => 20170122780 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2017-05-04 [patent_title] => 'SENSOR ARRANGEMENT FOR POSITION SENSING' [patent_app_type] => utility [patent_app_number] => 15/407353 [patent_app_country] => US [patent_app_date] => 2017-01-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 5828 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15407353 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/407353
Sensor arrangement for position sensing Jan 16, 2017 Issued
Array ( [id] => 11918637 [patent_doc_number] => 09786831 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2017-10-10 [patent_title] => 'Suspension having a stacked D33 mode PZT actuator with constraint layer' [patent_app_type] => utility [patent_app_number] => 15/402230 [patent_app_country] => US [patent_app_date] => 2017-01-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 4 [patent_no_of_words] => 3320 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 170 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15402230 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/402230
Suspension having a stacked D33 mode PZT actuator with constraint layer Jan 8, 2017 Issued
Array ( [id] => 12895420 [patent_doc_number] => 20180190315 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-07-05 [patent_title] => IN-SITU PROTECTIVE FILM [patent_app_type] => utility [patent_app_number] => 15/399631 [patent_app_country] => US [patent_app_date] => 2017-01-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 9942 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -16 [patent_words_short_claim] => 2 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15399631 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/399631
In-situ protective film Jan 4, 2017 Issued
Array ( [id] => 12553401 [patent_doc_number] => 10014022 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2018-07-03 [patent_title] => Flexible media burnishing apparatus and method [patent_app_type] => utility [patent_app_number] => 15/398628 [patent_app_country] => US [patent_app_date] => 2017-01-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 18 [patent_no_of_words] => 8911 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 116 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15398628 [rel_patent_id] =>[rel_patent_doc_number] =>)
15/398628
Flexible media burnishing apparatus and method Jan 3, 2017 Issued
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