Search

Fred Tzeng

Examiner (ID: 5378)

Most Active Art Unit
2627
Art Unit(s)
2186, 2686, 2627, 2752, 2651, 2695, 2625
Total Applications
1789
Issued Applications
1607
Pending Applications
63
Abandoned Applications
139

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 178890 [patent_doc_number] => 07656601 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2010-02-02 [patent_title] => 'Current biasing circuit to reduce MR common mode voltage jumping for MR resistance measurement' [patent_app_type] => utility [patent_app_number] => 11/975568 [patent_app_country] => US [patent_app_date] => 2007-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 4488 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 195 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/656/07656601.pdf [firstpage_image] =>[orig_patent_app_number] => 11975568 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/975568
Current biasing circuit to reduce MR common mode voltage jumping for MR resistance measurement Oct 18, 2007 Issued
Array ( [id] => 360584 [patent_doc_number] => 07486463 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2009-02-03 [patent_title] => 'Power disturbance compensation' [patent_app_type] => utility [patent_app_number] => 11/975441 [patent_app_country] => US [patent_app_date] => 2007-10-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 5654 [patent_no_of_claims] => 25 [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/07/486/07486463.pdf [firstpage_image] =>[orig_patent_app_number] => 11975441 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/975441
Power disturbance compensation Oct 18, 2007 Issued
Array ( [id] => 286460 [patent_doc_number] => 07551389 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-06-23 [patent_title] => 'Disk drive and method of retracting head thereof' [patent_app_type] => utility [patent_app_number] => 11/975516 [patent_app_country] => US [patent_app_date] => 2007-10-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 8279 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 118 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/551/07551389.pdf [firstpage_image] =>[orig_patent_app_number] => 11975516 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/975516
Disk drive and method of retracting head thereof Oct 17, 2007 Issued
Array ( [id] => 4583837 [patent_doc_number] => 07826162 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-11-02 [patent_title] => 'Apparatus and method for sensing an external magnetic field to protect a perpendicular magnetic recording (PMR) hard disk drive' [patent_app_type] => utility [patent_app_number] => 11/975251 [patent_app_country] => US [patent_app_date] => 2007-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 3540 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/826/07826162.pdf [firstpage_image] =>[orig_patent_app_number] => 11975251 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/975251
Apparatus and method for sensing an external magnetic field to protect a perpendicular magnetic recording (PMR) hard disk drive Oct 16, 2007 Issued
Array ( [id] => 4686711 [patent_doc_number] => 20080030892 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-02-07 [patent_title] => 'FEEDFORWARD CONTROLLER AND METHODS FOR USE THEREWITH' [patent_app_type] => utility [patent_app_number] => 11/872474 [patent_app_country] => US [patent_app_date] => 2007-10-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 6231 [patent_no_of_claims] => 20 [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] => publications/A1/0030/20080030892.pdf [firstpage_image] =>[orig_patent_app_number] => 11872474 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/872474
Feedforward controller and methods for use therewith Oct 14, 2007 Issued
Array ( [id] => 4914141 [patent_doc_number] => 20080094741 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-04-24 [patent_title] => 'Electronic apparatus having built-in hard disk device' [patent_app_type] => utility [patent_app_number] => 11/907356 [patent_app_country] => US [patent_app_date] => 2007-10-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 7 [patent_no_of_words] => 7465 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0094/20080094741.pdf [firstpage_image] =>[orig_patent_app_number] => 11907356 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/907356
Electronic apparatus having built-in hard disk device Oct 10, 2007 Issued
Array ( [id] => 5283480 [patent_doc_number] => 20090097154 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-04-16 [patent_title] => 'Optimizing storage capacity by smoothly varying track pitch across a disk surface' [patent_app_type] => utility [patent_app_number] => 11/973752 [patent_app_country] => US [patent_app_date] => 2007-10-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4036 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0097/20090097154.pdf [firstpage_image] =>[orig_patent_app_number] => 11973752 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/973752
Optimizing storage capacity by smoothly varying track pitch across a disk surface Oct 9, 2007 Issued
Array ( [id] => 4464746 [patent_doc_number] => 07880991 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2011-02-01 [patent_title] => 'Write timing system for hard disk drives with bit patterned media' [patent_app_type] => utility [patent_app_number] => 11/973814 [patent_app_country] => US [patent_app_date] => 2007-10-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 2177 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/880/07880991.pdf [firstpage_image] =>[orig_patent_app_number] => 11973814 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/973814
Write timing system for hard disk drives with bit patterned media Oct 8, 2007 Issued
Array ( [id] => 4878052 [patent_doc_number] => 20080151435 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-26 [patent_title] => 'Storage apparatus, method of detecting failure in head of storage apparatus, and storage medium storing failure detection program' [patent_app_type] => utility [patent_app_number] => 11/901544 [patent_app_country] => US [patent_app_date] => 2007-09-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 4654 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0151/20080151435.pdf [firstpage_image] =>[orig_patent_app_number] => 11901544 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/901544
Storage apparatus, method of detecting failure in head of storage apparatus, and storage medium storing failure detection program Sep 17, 2007 Issued
Array ( [id] => 4878023 [patent_doc_number] => 20080151406 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-06-26 [patent_title] => 'Storage apparatus, method of controlling amount of write current overshoot in storage apparatus and storage medium storing its program' [patent_app_type] => utility [patent_app_number] => 11/901347 [patent_app_country] => US [patent_app_date] => 2007-09-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 4988 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0151/20080151406.pdf [firstpage_image] =>[orig_patent_app_number] => 11901347 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/901347
Storage apparatus, method of controlling amount of write current overshoot in storage apparatus and storage medium storing its program Sep 16, 2007 Issued
Array ( [id] => 4576371 [patent_doc_number] => 07848038 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2010-12-07 [patent_title] => 'Boosted write driver for transmission line with reduction in parasitic effect of protection devices' [patent_app_type] => utility [patent_app_number] => 11/900945 [patent_app_country] => US [patent_app_date] => 2007-09-14 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 14 [patent_no_of_words] => 5410 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 85 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/848/07848038.pdf [firstpage_image] =>[orig_patent_app_number] => 11900945 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/900945
Boosted write driver for transmission line with reduction in parasitic effect of protection devices Sep 13, 2007 Issued
Array ( [id] => 197145 [patent_doc_number] => 07636217 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-12-22 [patent_title] => 'Defect inspection method of magnetic disk, device therefor, and magnetic disk drive device' [patent_app_type] => utility [patent_app_number] => 11/900708 [patent_app_country] => US [patent_app_date] => 2007-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 14 [patent_no_of_words] => 7683 [patent_no_of_claims] => 13 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 94 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/636/07636217.pdf [firstpage_image] =>[orig_patent_app_number] => 11900708 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/900708
Defect inspection method of magnetic disk, device therefor, and magnetic disk drive device Sep 11, 2007 Issued
Array ( [id] => 15599 [patent_doc_number] => 07804658 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2010-09-28 [patent_title] => 'Biasing RMR with constant power' [patent_app_type] => utility [patent_app_number] => 11/899897 [patent_app_country] => US [patent_app_date] => 2007-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 11 [patent_no_of_words] => 4402 [patent_no_of_claims] => 44 [patent_no_of_ind_claims] => 6 [patent_words_short_claim] => 106 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/804/07804658.pdf [firstpage_image] =>[orig_patent_app_number] => 11899897 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/899897
Biasing RMR with constant power Sep 5, 2007 Issued
Array ( [id] => 24477 [patent_doc_number] => 07800854 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2010-09-21 [patent_title] => 'Calibration circuit for voltage mode biasing of magnetoresistive heads' [patent_app_type] => utility [patent_app_number] => 11/899111 [patent_app_country] => US [patent_app_date] => 2007-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 12 [patent_no_of_words] => 7407 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 61 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/800/07800854.pdf [firstpage_image] =>[orig_patent_app_number] => 11899111 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/899111
Calibration circuit for voltage mode biasing of magnetoresistive heads Sep 3, 2007 Issued
Array ( [id] => 191918 [patent_doc_number] => 07643236 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-01-05 [patent_title] => 'Centrifugal machine' [patent_app_type] => utility [patent_app_number] => 11/848400 [patent_app_country] => US [patent_app_date] => 2007-08-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 3894 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 163 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/643/07643236.pdf [firstpage_image] =>[orig_patent_app_number] => 11848400 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/848400
Centrifugal machine Aug 30, 2007 Issued
Array ( [id] => 125386 [patent_doc_number] => 07706093 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2010-04-27 [patent_title] => 'Perpendicular magnetic recording medium, manufacturing method thereof and magnetic recording device' [patent_app_type] => utility [patent_app_number] => 11/897464 [patent_app_country] => US [patent_app_date] => 2007-08-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 30 [patent_figures_cnt] => 37 [patent_no_of_words] => 6530 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 50 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/706/07706093.pdf [firstpage_image] =>[orig_patent_app_number] => 11897464 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/897464
Perpendicular magnetic recording medium, manufacturing method thereof and magnetic recording device Aug 29, 2007 Issued
Array ( [id] => 5335627 [patent_doc_number] => 20090052091 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-02-26 [patent_title] => 'Monitoring a fly height of a magnetic transducer' [patent_app_type] => utility [patent_app_number] => 11/894317 [patent_app_country] => US [patent_app_date] => 2007-08-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5139 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0052/20090052091.pdf [firstpage_image] =>[orig_patent_app_number] => 11894317 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/894317
Monitoring a fly height of a magnetic transducer Aug 19, 2007 Issued
Array ( [id] => 197146 [patent_doc_number] => 07636218 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2009-12-22 [patent_title] => 'Recording method, unload method, and magnetic disk' [patent_app_type] => utility [patent_app_number] => 11/881436 [patent_app_country] => US [patent_app_date] => 2007-07-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 6455 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 74 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/636/07636218.pdf [firstpage_image] =>[orig_patent_app_number] => 11881436 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/881436
Recording method, unload method, and magnetic disk Jul 26, 2007 Issued
Array ( [id] => 4656317 [patent_doc_number] => 20080025178 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2008-01-31 [patent_title] => 'Data recording apparatus, recording medium and error detection method' [patent_app_type] => utility [patent_app_number] => 11/881188 [patent_app_country] => US [patent_app_date] => 2007-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 8 [patent_no_of_words] => 4193 [patent_no_of_claims] => 5 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0025/20080025178.pdf [firstpage_image] =>[orig_patent_app_number] => 11881188 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/881188
Data recording apparatus, recording medium and error detection method Jul 24, 2007 Abandoned
Array ( [id] => 5308681 [patent_doc_number] => 20090015962 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2009-01-15 [patent_title] => 'HEAD-DISC INTERFACE (HDI) MODAL RESPONSE MONITORING' [patent_app_type] => utility [patent_app_number] => 11/776206 [patent_app_country] => US [patent_app_date] => 2007-07-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3594 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 0 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0015/20090015962.pdf [firstpage_image] =>[orig_patent_app_number] => 11776206 [rel_patent_id] =>[rel_patent_doc_number] =>)
11/776206
Head-disc interface (HDI) modal response monitoring Jul 10, 2007 Issued
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