Search

Ko Hung Chan

Examiner (ID: 3751, Phone: (571)272-6816 , Office: P/3631 )

Most Active Art Unit
3631
Art Unit(s)
3632, 3637, 2899, 3631, 3505
Total Applications
2358
Issued Applications
1615
Pending Applications
111
Abandoned Applications
656

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 1603781 [patent_doc_number] => 06433964 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-08-13 [patent_title] => 'Method of making high density recording medium having a non-magnetic, metallic layer on a flexible substrate' [patent_app_type] => B1 [patent_app_number] => 09/691660 [patent_app_country] => US [patent_app_date] => 2000-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 4 [patent_no_of_words] => 3708 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 147 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/433/06433964.pdf [firstpage_image] =>[orig_patent_app_number] => 09691660 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/691660
Method of making high density recording medium having a non-magnetic, metallic layer on a flexible substrate Oct 16, 2000 Issued
Array ( [id] => 1215902 [patent_doc_number] => 06710984 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-03-23 [patent_title] => 'Magnetoresistive effect device utilizing a magnetization-coupling layer which couples adjacent ferromagnetic layers perpendicularly' [patent_app_type] => B1 [patent_app_number] => 09/668471 [patent_app_country] => US [patent_app_date] => 2000-09-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 24 [patent_no_of_words] => 12120 [patent_no_of_claims] => 38 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/710/06710984.pdf [firstpage_image] =>[orig_patent_app_number] => 09668471 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/668471
Magnetoresistive effect device utilizing a magnetization-coupling layer which couples adjacent ferromagnetic layers perpendicularly Sep 24, 2000 Issued
Array ( [id] => 1184346 [patent_doc_number] => 06741433 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-05-25 [patent_title] => 'Magneto-resistive head and magnetic tunnel junction magneto-resistive head having plural ferromagnetic layers and an anitferromagnetically coupling layer' [patent_app_type] => B1 [patent_app_number] => 09/666885 [patent_app_country] => US [patent_app_date] => 2000-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 11163 [patent_no_of_claims] => 24 [patent_no_of_ind_claims] => 11 [patent_words_short_claim] => 133 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/741/06741433.pdf [firstpage_image] =>[orig_patent_app_number] => 09666885 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/666885
Magneto-resistive head and magnetic tunnel junction magneto-resistive head having plural ferromagnetic layers and an anitferromagnetically coupling layer Sep 19, 2000 Issued
Array ( [id] => 1538272 [patent_doc_number] => 06490129 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-12-03 [patent_title] => 'Magnetic head including an inductive magnetic head having a lower magnetic core of a magnetic film/non-magnetic film/magnetic film multilayer structure' [patent_app_type] => B1 [patent_app_number] => 09/663100 [patent_app_country] => US [patent_app_date] => 2000-09-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 4441 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 134 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/490/06490129.pdf [firstpage_image] =>[orig_patent_app_number] => 09663100 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/663100
Magnetic head including an inductive magnetic head having a lower magnetic core of a magnetic film/non-magnetic film/magnetic film multilayer structure Sep 14, 2000 Issued
Array ( [id] => 4325182 [patent_doc_number] => 06317294 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-11-13 [patent_title] => 'Slider with negative and multiple positive pressure generation portions and head including the same' [patent_app_type] => 1 [patent_app_number] => 9/649030 [patent_app_country] => US [patent_app_date] => 2000-08-28 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 32 [patent_figures_cnt] => 53 [patent_no_of_words] => 18082 [patent_no_of_claims] => 57 [patent_no_of_ind_claims] => 8 [patent_words_short_claim] => 277 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/317/06317294.pdf [firstpage_image] =>[orig_patent_app_number] => 649030 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/649030
Slider with negative and multiple positive pressure generation portions and head including the same Aug 27, 2000 Issued
Array ( [id] => 1415824 [patent_doc_number] => 06538860 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-03-25 [patent_title] => 'Spin-valve type magnetoresistive element capable of preventing barkhausen noise' [patent_app_type] => B1 [patent_app_number] => 09/644720 [patent_app_country] => US [patent_app_date] => 2000-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 5584 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/538/06538860.pdf [firstpage_image] =>[orig_patent_app_number] => 09644720 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/644720
Spin-valve type magnetoresistive element capable of preventing barkhausen noise Aug 22, 2000 Issued
Array ( [id] => 7630555 [patent_doc_number] => 06636381 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-10-21 [patent_title] => 'Thin-film magnetic head for reducing track width, preventing write fringing and reducing magnetic saturation, and production method thereof' [patent_app_type] => B1 [patent_app_number] => 09/643919 [patent_app_country] => US [patent_app_date] => 2000-08-23 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 13 [patent_no_of_words] => 10520 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 12 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/636/06636381.pdf [firstpage_image] =>[orig_patent_app_number] => 09643919 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/643919
Thin-film magnetic head for reducing track width, preventing write fringing and reducing magnetic saturation, and production method thereof Aug 22, 2000 Issued
Array ( [id] => 1478171 [patent_doc_number] => 06388840 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-05-14 [patent_title] => 'Suspension having a head IC mounting portion formed on a rigid portion between a base portion and a head slider mounting portion' [patent_app_type] => B1 [patent_app_number] => 09/643536 [patent_app_country] => US [patent_app_date] => 2000-08-22 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 18 [patent_no_of_words] => 10843 [patent_no_of_claims] => 9 [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] => patents/06/388/06388840.pdf [firstpage_image] =>[orig_patent_app_number] => 09643536 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/643536
Suspension having a head IC mounting portion formed on a rigid portion between a base portion and a head slider mounting portion Aug 21, 2000 Issued
Array ( [id] => 1375994 [patent_doc_number] => 06570740 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-05-27 [patent_title] => 'Tape guide with wear resistant coating' [patent_app_type] => B1 [patent_app_number] => 09/643317 [patent_app_country] => US [patent_app_date] => 2000-08-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 11 [patent_no_of_words] => 2680 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 80 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/570/06570740.pdf [firstpage_image] =>[orig_patent_app_number] => 09643317 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/643317
Tape guide with wear resistant coating Aug 20, 2000 Issued
Array ( [id] => 1504111 [patent_doc_number] => 06487036 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-11-26 [patent_title] => 'Vibratory feeder for dispensing balance correction members for securing to a disc drive disc pack' [patent_app_type] => B1 [patent_app_number] => 09/641691 [patent_app_country] => US [patent_app_date] => 2000-08-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 12 [patent_no_of_words] => 9343 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 22 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/487/06487036.pdf [firstpage_image] =>[orig_patent_app_number] => 09641691 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/641691
Vibratory feeder for dispensing balance correction members for securing to a disc drive disc pack Aug 17, 2000 Issued
Array ( [id] => 1427883 [patent_doc_number] => 06507467 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-01-14 [patent_title] => 'Comb shunt for ESD protection' [patent_app_type] => B1 [patent_app_number] => 09/640422 [patent_app_country] => US [patent_app_date] => 2000-08-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 3599 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 63 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/507/06507467.pdf [firstpage_image] =>[orig_patent_app_number] => 09640422 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/640422
Comb shunt for ESD protection Aug 16, 2000 Issued
09/639933 SWING ARM FOR ACTUATING MAGNETIC HEAD AND CASTING MOLD FOR THE SAME Aug 16, 2000 Abandoned
Array ( [id] => 1493167 [patent_doc_number] => 06417990 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-07-09 [patent_title] => 'Composite core structure for high efficiency writer' [patent_app_type] => B1 [patent_app_number] => 09/639700 [patent_app_country] => US [patent_app_date] => 2000-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 24 [patent_no_of_words] => 6825 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 72 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/417/06417990.pdf [firstpage_image] =>[orig_patent_app_number] => 09639700 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/639700
Composite core structure for high efficiency writer Aug 15, 2000 Issued
Array ( [id] => 1223369 [patent_doc_number] => 06704173 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-03-09 [patent_title] => 'Method and system for providing ESD protection using diodes and a grounding strip in a head gimbal assembly' [patent_app_type] => B1 [patent_app_number] => 09/641025 [patent_app_country] => US [patent_app_date] => 2000-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 11 [patent_no_of_words] => 9941 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 105 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/704/06704173.pdf [firstpage_image] =>[orig_patent_app_number] => 09641025 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/641025
Method and system for providing ESD protection using diodes and a grounding strip in a head gimbal assembly Aug 15, 2000 Issued
Array ( [id] => 688891 [patent_doc_number] => 07079354 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-07-18 [patent_title] => 'Planar magnetic head' [patent_app_type] => utility [patent_app_number] => 09/638663 [patent_app_country] => US [patent_app_date] => 2000-08-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 16 [patent_no_of_words] => 3058 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/079/07079354.pdf [firstpage_image] =>[orig_patent_app_number] => 09638663 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/638663
Planar magnetic head Aug 13, 2000 Issued
Array ( [id] => 1563898 [patent_doc_number] => 06437943 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-08-20 [patent_title] => 'Silicon carbide substrate for forming magnetic head' [patent_app_type] => B1 [patent_app_number] => 09/637420 [patent_app_country] => US [patent_app_date] => 2000-08-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 1 [patent_figures_cnt] => 2 [patent_no_of_words] => 4623 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/437/06437943.pdf [firstpage_image] =>[orig_patent_app_number] => 09637420 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/637420
Silicon carbide substrate for forming magnetic head Aug 10, 2000 Issued
Array ( [id] => 1507119 [patent_doc_number] => 06466411 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-10-15 [patent_title] => 'Magnetic head device supported by a bent load beam' [patent_app_type] => B1 [patent_app_number] => 09/634382 [patent_app_country] => US [patent_app_date] => 2000-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 6781 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 178 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/466/06466411.pdf [firstpage_image] =>[orig_patent_app_number] => 09634382 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/634382
Magnetic head device supported by a bent load beam Aug 8, 2000 Issued
Array ( [id] => 1469785 [patent_doc_number] => 06459543 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-10-01 [patent_title] => 'Thin-film magnetic head with helical wound coil' [patent_app_type] => B1 [patent_app_number] => 09/635340 [patent_app_country] => US [patent_app_date] => 2000-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 70 [patent_no_of_words] => 24183 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 292 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/459/06459543.pdf [firstpage_image] =>[orig_patent_app_number] => 09635340 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/635340
Thin-film magnetic head with helical wound coil Aug 8, 2000 Issued
Array ( [id] => 7643030 [patent_doc_number] => 06430014 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2002-08-06 [patent_title] => 'Properly biased AP pinned spin valve sensor with a metallic pinning layer and no read gap offset' [patent_app_type] => B1 [patent_app_number] => 09/635722 [patent_app_country] => US [patent_app_date] => 2000-08-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 16 [patent_no_of_words] => 5741 [patent_no_of_claims] => 53 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 6 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/430/06430014.pdf [firstpage_image] =>[orig_patent_app_number] => 09635722 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/635722
Properly biased AP pinned spin valve sensor with a metallic pinning layer and no read gap offset Aug 8, 2000 Issued
Array ( [id] => 1431440 [patent_doc_number] => 06504685 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-01-07 [patent_title] => 'Microelectricalmechanical device immobilization and sealing' [patent_app_type] => B1 [patent_app_number] => 09/634097 [patent_app_country] => US [patent_app_date] => 2000-08-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 2 [patent_figures_cnt] => 7 [patent_no_of_words] => 2370 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/504/06504685.pdf [firstpage_image] =>[orig_patent_app_number] => 09634097 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/634097
Microelectricalmechanical device immobilization and sealing Aug 7, 2000 Issued
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