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] => 1280205 [patent_doc_number] => 06650498 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-11-18 [patent_title] => 'Actuator retract circuit for dual speed hard disk drive' [patent_app_type] => B1 [patent_app_number] => 09/660554 [patent_app_country] => US [patent_app_date] => 2000-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 18 [patent_figures_cnt] => 19 [patent_no_of_words] => 7926 [patent_no_of_claims] => 44 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 43 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/650/06650498.pdf [firstpage_image] =>[orig_patent_app_number] => 09660554 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/660554
Actuator retract circuit for dual speed hard disk drive Sep 11, 2000 Issued
Array ( [id] => 1318547 [patent_doc_number] => 06614611 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-09-02 [patent_title] => 'Method for buckler rotation test' [patent_app_type] => B1 [patent_app_number] => 09/659362 [patent_app_country] => US [patent_app_date] => 2000-09-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 3440 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/614/06614611.pdf [firstpage_image] =>[orig_patent_app_number] => 09659362 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/659362
Method for buckler rotation test Sep 11, 2000 Issued
Array ( [id] => 1426431 [patent_doc_number] => 06522497 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-02-18 [patent_title] => 'Disk drive having positioning control system using logical cylinder address information' [patent_app_type] => B1 [patent_app_number] => 09/659682 [patent_app_country] => US [patent_app_date] => 2000-09-11 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 6 [patent_no_of_words] => 4368 [patent_no_of_claims] => 6 [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] => patents/06/522/06522497.pdf [firstpage_image] =>[orig_patent_app_number] => 09659682 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/659682
Disk drive having positioning control system using logical cylinder address information Sep 10, 2000 Issued
Array ( [id] => 1314274 [patent_doc_number] => 06622200 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-09-16 [patent_title] => 'Method of performing reliable updates in a symmetrically blocked nonvolatile memory having a bifurcated storage architecture' [patent_app_type] => B1 [patent_app_number] => 09/659025 [patent_app_country] => US [patent_app_date] => 2000-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 36 [patent_figures_cnt] => 37 [patent_no_of_words] => 17549 [patent_no_of_claims] => 21 [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/06/622/06622200.pdf [firstpage_image] =>[orig_patent_app_number] => 09659025 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/659025
Method of performing reliable updates in a symmetrically blocked nonvolatile memory having a bifurcated storage architecture Sep 5, 2000 Issued
Array ( [id] => 1148668 [patent_doc_number] => 06778348 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-08-17 [patent_title] => 'Accelerometer-assisted servo writing for disk drives' [patent_app_type] => B1 [patent_app_number] => 09/648859 [patent_app_country] => US [patent_app_date] => 2000-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 3802 [patent_no_of_claims] => 35 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 141 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/778/06778348.pdf [firstpage_image] =>[orig_patent_app_number] => 09648859 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/648859
Accelerometer-assisted servo writing for disk drives Aug 24, 2000 Issued
Array ( [id] => 1173559 [patent_doc_number] => 06757127 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-06-29 [patent_title] => 'Adaptive temperature compensated AC unlatch algorithm' [patent_app_type] => B1 [patent_app_number] => 09/648869 [patent_app_country] => US [patent_app_date] => 2000-08-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 16 [patent_figures_cnt] => 16 [patent_no_of_words] => 8478 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 68 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/757/06757127.pdf [firstpage_image] =>[orig_patent_app_number] => 09648869 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/648869
Adaptive temperature compensated AC unlatch algorithm Aug 24, 2000 Issued
Array ( [id] => 1204454 [patent_doc_number] => 06721126 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-04-13 [patent_title] => 'Position identification for a coarse actuator portion of a compound actuator' [patent_app_type] => B1 [patent_app_number] => 09/641135 [patent_app_country] => US [patent_app_date] => 2000-08-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 8 [patent_no_of_words] => 4629 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 182 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/721/06721126.pdf [firstpage_image] =>[orig_patent_app_number] => 09641135 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/641135
Position identification for a coarse actuator portion of a compound actuator Aug 15, 2000 Issued
Array ( [id] => 1175459 [patent_doc_number] => 06754031 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-06-22 [patent_title] => 'Method and apparatus for controlling an access mechanism within a disk drive' [patent_app_type] => B1 [patent_app_number] => 09/629366 [patent_app_country] => US [patent_app_date] => 2000-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 12 [patent_figures_cnt] => 12 [patent_no_of_words] => 12526 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 168 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/754/06754031.pdf [firstpage_image] =>[orig_patent_app_number] => 09629366 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/629366
Method and apparatus for controlling an access mechanism within a disk drive Jul 31, 2000 Issued
Array ( [id] => 1357688 [patent_doc_number] => 06580580 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-06-17 [patent_title] => 'Magnetic memory drive and optical device' [patent_app_type] => B1 [patent_app_number] => 09/601359 [patent_app_country] => US [patent_app_date] => 2000-08-01 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 12 [patent_no_of_words] => 6898 [patent_no_of_claims] => 2 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 158 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/580/06580580.pdf [firstpage_image] =>[orig_patent_app_number] => 09601359 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/601359
Magnetic memory drive and optical device Jul 31, 2000 Issued
Array ( [id] => 1318554 [patent_doc_number] => 06614612 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-09-02 [patent_title] => 'Embedded programmable filter for disk drive velocity control' [patent_app_type] => B1 [patent_app_number] => 09/625068 [patent_app_country] => US [patent_app_date] => 2000-07-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 6 [patent_no_of_words] => 6115 [patent_no_of_claims] => 35 [patent_no_of_ind_claims] => 7 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/614/06614612.pdf [firstpage_image] =>[orig_patent_app_number] => 09625068 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/625068
Embedded programmable filter for disk drive velocity control Jul 24, 2000 Issued
Array ( [id] => 1192468 [patent_doc_number] => 06735676 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-05-11 [patent_title] => 'Method and system for sharing storing device via mutually different interfaces' [patent_app_type] => B1 [patent_app_number] => 09/621696 [patent_app_country] => US [patent_app_date] => 2000-07-21 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 10 [patent_no_of_words] => 8472 [patent_no_of_claims] => 4 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 203 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/735/06735676.pdf [firstpage_image] =>[orig_patent_app_number] => 09621696 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/621696
Method and system for sharing storing device via mutually different interfaces Jul 20, 2000 Issued
Array ( [id] => 1204444 [patent_doc_number] => 06721121 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-04-13 [patent_title] => 'In-situ determination of landing zone transition for improved disk drive reliability' [patent_app_type] => B1 [patent_app_number] => 09/615364 [patent_app_country] => US [patent_app_date] => 2000-07-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 4 [patent_no_of_words] => 4099 [patent_no_of_claims] => 45 [patent_no_of_ind_claims] => 14 [patent_words_short_claim] => 98 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/721/06721121.pdf [firstpage_image] =>[orig_patent_app_number] => 09615364 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/615364
In-situ determination of landing zone transition for improved disk drive reliability Jul 12, 2000 Issued
Array ( [id] => 7623090 [patent_doc_number] => 06687075 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-02-03 [patent_title] => 'Recording-medium holder insertion detection apparatus' [patent_app_type] => B1 [patent_app_number] => 09/611055 [patent_app_country] => US [patent_app_date] => 2000-07-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 5 [patent_no_of_words] => 4032 [patent_no_of_claims] => 6 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 18 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/687/06687075.pdf [firstpage_image] =>[orig_patent_app_number] => 09611055 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/611055
Recording-medium holder insertion detection apparatus Jul 5, 2000 Issued
Array ( [id] => 1341325 [patent_doc_number] => 06597527 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-07-22 [patent_title] => 'Data storage medium transportation unit' [patent_app_type] => B1 [patent_app_number] => 09/597489 [patent_app_country] => US [patent_app_date] => 2000-06-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 8 [patent_figures_cnt] => 10 [patent_no_of_words] => 6506 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 237 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/597/06597527.pdf [firstpage_image] =>[orig_patent_app_number] => 09597489 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/597489
Data storage medium transportation unit Jun 18, 2000 Issued
Array ( [id] => 1184280 [patent_doc_number] => 06741414 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-05-25 [patent_title] => 'Joint spindle speed and head position control in rotating media storage systems' [patent_app_type] => B1 [patent_app_number] => 09/595455 [patent_app_country] => US [patent_app_date] => 2000-06-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 12 [patent_no_of_words] => 10644 [patent_no_of_claims] => 26 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 54 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/741/06741414.pdf [firstpage_image] =>[orig_patent_app_number] => 09595455 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/595455
Joint spindle speed and head position control in rotating media storage systems Jun 14, 2000 Issued
Array ( [id] => 1249577 [patent_doc_number] => 06674601 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2004-01-06 [patent_title] => 'Method and apparatus for electronically shifting mechanical resonance of an actuator system of a disc drive' [patent_app_type] => B1 [patent_app_number] => 09/591770 [patent_app_country] => US [patent_app_date] => 2000-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 10 [patent_no_of_words] => 3289 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 49 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/674/06674601.pdf [firstpage_image] =>[orig_patent_app_number] => 09591770 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/591770
Method and apparatus for electronically shifting mechanical resonance of an actuator system of a disc drive Jun 11, 2000 Issued
Array ( [id] => 1353153 [patent_doc_number] => 06587303 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-07-01 [patent_title] => 'Servo control of a coarse actuator' [patent_app_type] => B1 [patent_app_number] => 09/590673 [patent_app_country] => US [patent_app_date] => 2000-06-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 12 [patent_no_of_words] => 4009 [patent_no_of_claims] => 25 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 122 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/587/06587303.pdf [firstpage_image] =>[orig_patent_app_number] => 09590673 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/590673
Servo control of a coarse actuator Jun 8, 2000 Issued
Array ( [id] => 1395991 [patent_doc_number] => 06556370 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-04-29 [patent_title] => 'Method of writing tracking servo signal pattern for magnetic disk device' [patent_app_type] => B1 [patent_app_number] => 09/509276 [patent_app_country] => US [patent_app_date] => 2000-06-08 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 6 [patent_no_of_words] => 3997 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 290 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/556/06556370.pdf [firstpage_image] =>[orig_patent_app_number] => 09509276 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/509276
Method of writing tracking servo signal pattern for magnetic disk device Jun 7, 2000 Issued
Array ( [id] => 4424697 [patent_doc_number] => 06230232 [patent_country] => US [patent_kind] => NA [patent_issue_date] => 2001-05-08 [patent_title] => 'Information processing system and true/false determining method used therefor' [patent_app_type] => 1 [patent_app_number] => 9/587499 [patent_app_country] => US [patent_app_date] => 2000-06-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 10 [patent_no_of_words] => 10841 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 302 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/230/06230232.pdf [firstpage_image] =>[orig_patent_app_number] => 587499 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/587499
Information processing system and true/false determining method used therefor Jun 5, 2000 Issued
Array ( [id] => 1367184 [patent_doc_number] => 06577465 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2003-06-10 [patent_title] => 'Disk drive comprising spin down circuitry having a programmable signal generator for enhancing power and braking control' [patent_app_type] => B1 [patent_app_number] => 09/585244 [patent_app_country] => US [patent_app_date] => 2000-05-31 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 14 [patent_no_of_words] => 5946 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 183 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/577/06577465.pdf [firstpage_image] =>[orig_patent_app_number] => 09585244 [rel_patent_id] =>[rel_patent_doc_number] =>)
09/585244
Disk drive comprising spin down circuitry having a programmable signal generator for enhancing power and braking control May 30, 2000 Issued
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