Search

Frank D. Ducheneaux

Examiner (ID: 11358, Phone: (571)270-7053 , Office: P/1788 )

Most Active Art Unit
1788
Art Unit(s)
1794, 1787, 1788
Total Applications
820
Issued Applications
294
Pending Applications
108
Abandoned Applications
441

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 7210826 [patent_doc_number] => 20050259344 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2005-11-24 [patent_title] => 'High output impedance biasing for magnetoresistive elements' [patent_app_type] => utility [patent_app_number] => 10/647943 [patent_app_country] => US [patent_app_date] => 2003-08-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 3 [patent_figures_cnt] => 3 [patent_no_of_words] => 2031 [patent_no_of_claims] => 17 [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/A1/0259/20050259344.pdf [firstpage_image] =>[orig_patent_app_number] => 10647943 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/647943
High output impedance biasing for magnetoresistive elements Aug 25, 2003 Abandoned
Array ( [id] => 7324995 [patent_doc_number] => 20040252392 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-16 [patent_title] => 'Thermal asperity multi-thereshold algorithm using the read/write channel' [patent_app_type] => new [patent_app_number] => 10/459735 [patent_app_country] => US [patent_app_date] => 2003-06-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 9 [patent_no_of_words] => 3787 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 73 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0252/20040252392.pdf [firstpage_image] =>[orig_patent_app_number] => 10459735 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/459735
Thermal asperity multi-threshold algorithm using the read/write channel Jun 11, 2003 Issued
Array ( [id] => 6824375 [patent_doc_number] => 20030234997 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-12-25 [patent_title] => 'Overshoot current phase/amplitude control for hard disk drive write current' [patent_app_type] => new [patent_app_number] => 10/457473 [patent_app_country] => US [patent_app_date] => 2003-06-10 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 6767 [patent_no_of_claims] => 21 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 71 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0234/20030234997.pdf [firstpage_image] =>[orig_patent_app_number] => 10457473 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/457473
Overshoot current phase/amplitude control for hard disk drive write current Jun 9, 2003 Issued
Array ( [id] => 7357514 [patent_doc_number] => 20040090693 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-05-13 [patent_title] => 'Bi-frequency servo pattern' [patent_app_type] => new [patent_app_number] => 10/455688 [patent_app_country] => US [patent_app_date] => 2003-06-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 11 [patent_no_of_words] => 8121 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 30 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0090/20040090693.pdf [firstpage_image] =>[orig_patent_app_number] => 10455688 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/455688
Bi-frequency servo pattern Jun 4, 2003 Issued
Array ( [id] => 7268627 [patent_doc_number] => 20040057145 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-03-25 [patent_title] => 'NRZ pipeline servo while reading or writing' [patent_app_type] => new [patent_app_number] => 10/453954 [patent_app_country] => US [patent_app_date] => 2003-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 6157 [patent_no_of_claims] => 28 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 37 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0057/20040057145.pdf [firstpage_image] =>[orig_patent_app_number] => 10453954 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/453954
NRZ pipeline servo while reading or writing Jun 3, 2003 Issued
Array ( [id] => 489655 [patent_doc_number] => 07218465 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2007-05-15 [patent_title] => 'Magnetic media patterning via contact printing utilizing stamper having magnetic pattern formed in non-magnetic substrate' [patent_app_type] => utility [patent_app_number] => 10/453508 [patent_app_country] => US [patent_app_date] => 2003-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 15 [patent_no_of_words] => 9055 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 191 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/218/07218465.pdf [firstpage_image] =>[orig_patent_app_number] => 10453508 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/453508
Magnetic media patterning via contact printing utilizing stamper having magnetic pattern formed in non-magnetic substrate Jun 3, 2003 Issued
Array ( [id] => 7342039 [patent_doc_number] => 20040246614 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2004-12-09 [patent_title] => 'Apparatus and method for writing data to an information storage disc' [patent_app_type] => new [patent_app_number] => 10/453955 [patent_app_country] => US [patent_app_date] => 2003-06-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 4858 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 119 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0246/20040246614.pdf [firstpage_image] =>[orig_patent_app_number] => 10453955 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/453955
Apparatus and method for writing data to an information storage disc Jun 3, 2003 Issued
Array ( [id] => 6677564 [patent_doc_number] => 20030227704 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-12-11 [patent_title] => 'Bias circuit for magneto-resistive head' [patent_app_type] => new [patent_app_number] => 10/452290 [patent_app_country] => US [patent_app_date] => 2003-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 5 [patent_no_of_words] => 3673 [patent_no_of_claims] => 3 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 114 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0227/20030227704.pdf [firstpage_image] =>[orig_patent_app_number] => 10452290 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/452290
Bias circuit for magneto-resistive head Jun 2, 2003 Issued
Array ( [id] => 791292 [patent_doc_number] => 06985318 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2006-01-10 [patent_title] => 'Method and apparatus for precessional switching of the magnetization of storage medium using a transverse write field' [patent_app_type] => utility [patent_app_number] => 10/454094 [patent_app_country] => US [patent_app_date] => 2003-06-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 9 [patent_no_of_words] => 6657 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 5 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/985/06985318.pdf [firstpage_image] =>[orig_patent_app_number] => 10454094 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/454094
Method and apparatus for precessional switching of the magnetization of storage medium using a transverse write field Jun 2, 2003 Issued
Array ( [id] => 652045 [patent_doc_number] => 07113356 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-09-26 [patent_title] => 'Method for checking the quality of servo gray codes' [patent_app_type] => utility [patent_app_number] => 10/449218 [patent_app_country] => US [patent_app_date] => 2003-05-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 9 [patent_figures_cnt] => 12 [patent_no_of_words] => 3862 [patent_no_of_claims] => 66 [patent_no_of_ind_claims] => 12 [patent_words_short_claim] => 108 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/113/07113356.pdf [firstpage_image] =>[orig_patent_app_number] => 10449218 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/449218
Method for checking the quality of servo gray codes May 29, 2003 Issued
Array ( [id] => 980241 [patent_doc_number] => 06930844 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2005-08-16 [patent_title] => 'High precision fly height measurement' [patent_app_type] => utility [patent_app_number] => 10/440885 [patent_app_country] => US [patent_app_date] => 2003-05-19 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 2206 [patent_no_of_claims] => 17 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 77 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/930/06930844.pdf [firstpage_image] =>[orig_patent_app_number] => 10440885 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/440885
High precision fly height measurement May 18, 2003 Issued
Array ( [id] => 624794 [patent_doc_number] => 07139141 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-11-21 [patent_title] => 'System and method for read/write optimization' [patent_app_type] => utility [patent_app_number] => 10/436682 [patent_app_country] => US [patent_app_date] => 2003-05-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 5825 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/139/07139141.pdf [firstpage_image] =>[orig_patent_app_number] => 10436682 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/436682
System and method for read/write optimization May 11, 2003 Issued
Array ( [id] => 791288 [patent_doc_number] => 06985314 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2006-01-10 [patent_title] => 'Method and apparatus for fixed-gap, constant-field patterning of magnetic media by contact printing' [patent_app_type] => utility [patent_app_number] => 10/434061 [patent_app_country] => US [patent_app_date] => 2003-05-09 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 8 [patent_no_of_words] => 8694 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 41 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/06/985/06985314.pdf [firstpage_image] =>[orig_patent_app_number] => 10434061 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/434061
Method and apparatus for fixed-gap, constant-field patterning of magnetic media by contact printing May 8, 2003 Issued
10/420076 Systems for self-servowriting using write-current variation Apr 21, 2003 Abandoned
10/420498 Methods for self-servowriting using write-current variation Apr 21, 2003 Abandoned
10/420127 Methods for self-servowriting with multiple passes per servowriting step Apr 21, 2003 Abandoned
10/420452 Systems for self-servowriting with multiple passes per servowriting step Apr 21, 2003 Abandoned
Array ( [id] => 6864251 [patent_doc_number] => 20030189777 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-10-09 [patent_title] => 'Evaluation reference tape, method and apparatus for manufacturing the same' [patent_app_type] => new [patent_app_number] => 10/408038 [patent_app_country] => US [patent_app_date] => 2003-04-07 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 14625 [patent_no_of_claims] => 10 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 45 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0189/20030189777.pdf [firstpage_image] =>[orig_patent_app_number] => 10408038 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/408038
Evaluation reference tape, method and apparatus for manufacturing the same Apr 6, 2003 Abandoned
Array ( [id] => 6724046 [patent_doc_number] => 20030206358 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2003-11-06 [patent_title] => 'Head instability detection for a data storage device' [patent_app_type] => new [patent_app_number] => 10/406117 [patent_app_country] => US [patent_app_date] => 2003-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 4584 [patent_no_of_claims] => 18 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 31 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] => publications/A1/0206/20030206358.pdf [firstpage_image] =>[orig_patent_app_number] => 10406117 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/406117
Head instability detection for a data storage device Apr 2, 2003 Abandoned
Array ( [id] => 862411 [patent_doc_number] => 07372649 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2008-05-13 [patent_title] => 'Apparatus and method for applying write signals for driving a write head' [patent_app_type] => utility [patent_app_number] => 10/407011 [patent_app_country] => US [patent_app_date] => 2003-04-03 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 4 [patent_figures_cnt] => 9 [patent_no_of_words] => 7215 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 262 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] => patents/07/372/07372649.pdf [firstpage_image] =>[orig_patent_app_number] => 10407011 [rel_patent_id] =>[rel_patent_doc_number] =>)
10/407011
Apparatus and method for applying write signals for driving a write head Apr 2, 2003 Issued
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