Western Digital Technologies, Inc. et al. vs. Godo Kaisha IP Bridge 1

Explore the PTAB proceeding IPR2024-01447 filed by Western Digital Technologies, Inc. et al. on 2024-09-16. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2024-01447

Filing Date

2024-09-16

Accorded Filing Date

2024-09-16

Institution Decision Date

2025-04-21

Last Modified Date

2026-08-18

Proceeding Type

IPR

Termination Date

2026-03-27

Trial Status

Final Written Decision - Appealed

Parties & Counsel

Petitioner

Western Digital Technologies, Inc. et al.

Represented By

Armond, Michelleet al

Patent Owner / Respondent

Godo Kaisha IP Bridge 1

Represented By

Hrycyszyn, Geraldet al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 2800 - Semiconductors, Electrical & Optical Systems

Patent Information

1 Patent Involved

Respondent Application Number 13400340

Respondent Patent Number 8405134

External Links

Espacenet

Google Patents

Respondent Inventor Shinji Yuasa

Respondent Tech Center TC 2800 - Semiconductors, Electrical & Optical Systems

Address and Attorney/Agent Information

119 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name WOLF GREENFIELD & SACKS, P.C.

Customer Number 23628

Address 600 ATLANTIC AVENUE, BOSTON, MA, 02210-2206, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
28129	John Welch	617-646-8000
31616	Edward Gates	617-646-8000
31624	Jason Honeyman	617-646-8222
32950	Edmund Walsh	617-646-8000
34681	James Morris	617-646-8000
35986	Randy Pritzker	617-646-8000
36149	Richard Giunta	617-646-8000
36628	Timothy Oyer	617-646-8251
36971	Douglas Wolf	617-646-8260
38232	Robert Maldonado	212-849-3339
39188	Neil Ferraro	617-646-8267
39213	James Hanifin Jr	617-646-8000
39231	Robert Hunt	617-646-8000
39248	Helen Lockhart	617-646-8249
40024	Jeffrey Hsi	617-646-8556
40212	John Van Amsterdam	617-646-8000
40286	Stephen Rabinowitz	212-849-3356
41418	Patrick Waller	617-646-8000
42866	Scott Mckeown	202-389-6025
43069	Edward Russavage	617-646-8515
43988	Adam Wichman	617-646-8571
46190	Michael Pomianek	617-646-8000
46324	Robert Walat	617-646-8000
46533	Charles Baker	617-646-8381
48207	Maria Trevisan	617-646-8000
48644	Andrew Williams	617-646-8000
50474	Gerald Hrycyszyn	617-646-8313
52146	Michael Rader	617-646-8000
52318	Janice Vatland	617-646-8000
52728	Tani Chen	617-646-8214
52957	Matthew Grady	617-646-8000
54986	Melissa Beede	617-646-8000
55151	Roque El Hayek	617-646-8000
57063	Gregory Nieberg	212-849-3338
58404	Tonia Sayour	212-697-7890
58423	Gabriel Mccool	617-646-8000
58767	Michael Parsons	617-646-8942
59924	Nidhi Malla	617-646-8572
61115	Jonathan Roses	617-646-8157
61146	Robert Jensen	617-646-8271
61674	Jessamine Lee	617-646-8272
62868	Daniel Young	617-646-8245
63390	Zachary Piccolomini	617-646-8579
63456	Thomas Franklin	617-646-8000
64978	Marc Johannes	617-646-8209
65507	Robert Sahr	617-646-8484
65843	Heather Dipietrantonio	617-646-8000
66229	Victor Cheung	202-571-5012
66256	Brandon Blackwell	617-646-8360
67110	Jason Balich	617-646-8498
67131	John Harmon Iii	617-646-8307
67336	Elisabeth Hunt	617-646-8443
68177	Oona Johnstone	617-504-4219
68598	Jennifer Wang	617-646-8392
69059	William Zhang	617-646-8257
70034	Cara Dawson	617-646-8000
70972	Daniel Rudoy	617-646-8303
71278	Daniel Smith	214-292-4071
72065	Mark Consilvio	202-408-3938
72100	David Gesner	617-646-8437
73256	Laura Rogers	212-336-3865
73865	Matthew Duffey	617-646-8537
73869	Zhiyun Ge	617-646-8472
73995	Curtis Powell	617-646-8534
74068	Jie Xiang	617-646-8000
74442	Lin Li	617-646-8502
74522	Kevin Macdonald	617-646-8497
75481	Philip Hamzik	617-646-8300
75857	Kirsten Weigel-Van Aken	202-350-2799
75967	Diana Borgas	(612) 339-3061
76050	Anant Saraswat	617-646-8187
76246	Adam Zeiger	617-646-8485
76538	Elizabeth Boehm	617-646-8000
76669	William Czaplyski	617-646-8494
76736	Michele Moresco	617-646-8000
76749	Danielle Samblanet	617-646-8565
76803	Amanda Varrichione	617-646-8161
76839	Jessica Von Reyn	617-646-8000
77021	Nathan Jacobs	617-646-8557
77065	Anne Weeks	617-646-8031
77265	Lingyin Ge	617-646-8199
77456	Saad Alam	617-646-8503
77641	Joseph Bowler	617-646-8393
77692	Elizabeth Mulski	617-646-8352
78514	Harrison Shecter	617-646-8183
78555	Andrew Varrenti	617-646-8314
78667	Flora Luo	617-646-8591
79027	Sarah Schlotter	617-646-8269
79358	Evan Jones	617-646-8000
79399	Andrew Maher	617-646-8596
79628	Tyler Goddard	617-646-8306
79725	Jeffrey Harrigan	617-646-8418
79773	Roshan Plamthottam	617-646-8770
79827	Charlotte Stewart-Sloan	617-646-8341
80263	Shangxing Lu	202-663-6000
80312	Samuel Doskocil	617-646-8198
80320	John Hovestadt	617-646-8348
80331	John Otterbein	908-420-6574
80350	Andrew Mathis	617-646-8562
80358	Colin Buss	617-646-8159
80498	Steven Hannigan	617-646-8573
80639	Edward Stanton	617-646-8873
80711	Kevin Chancellor	617-646-8373
80731	Samuel Kim	617-646-8000
81128	William Lindemann	617-646-8535
81205	Claire Lidston	617-646-8426
81429	Kylee Prosser	617-646-8590
81469	Victoria Julian	617-646-8495
81655	Jill Ryan	978-210-9065
81910	Conor Kavanagh	781-927-8679
81968	Joseph Noreika	212-849-3346
82138	Benjamin Walsh	617-646-8213
82211	Andrew Schlaus	212-849-3337
82354	Allison Mayne	617-646-8000
82491	Evan Bender	212-849-3351
82753	Adrienne Zagieboylo	617-646-8771
83072	Max Zegers	617-646-8660
83077	Samantha Collins	617-646-8564
83258	Karen Cruz	617-646-8444

Proceeding Documents

200

Patent Owner's Notice of Cross-Appeal NOTICE

2026-08-18 FILING PARTY: PATENT OWNER

Download

Petitioner's Notice of Appeal NOTICE

2026-07-22 FILING PARTY: PETITIONER

Download

Order Denying Director Review of Final Written Decision MOTION

2026-07-21 FILING PARTY: BOARD

Download

Authorized Response to Director Review Request OTHER

2026-05-01 FILING PARTY: PETITIONER

Download

Patent Owner's Request for Director Review REQUEST

2026-04-24 FILING PARTY: PATENT OWNER

Download

Western Digital Technologies, Inc. et al. vs. Godo Kaisha IP Bridge 1

Proceeding Overview

Parties & Counsel

Petitioner

Western Digital Technologies, Inc. et al.

Represented By

Patent Owner / Respondent

Godo Kaisha IP Bridge 1

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Patent Owner's Notice of Cross-Appeal NOTICE

Petitioner's Notice of Appeal NOTICE

Order Denying Director Review of Final Written Decision MOTION

Authorized Response to Director Review Request OTHER

Patent Owner's Request for Director Review REQUEST

Exhibit 3104 Exhibit

Judgment Final Written Decision FINAL

Other: Hearing transcript OTHER

Transcript of January 13, 2026 Board Conference Call Exhibit

Petitioner's Updated Exhibit List NOTICE

Petitioner’s Demonstratives for Oral Hearing Exhibit

Notice of Filing Patent Owner's Demonstrative Exhibits NOTICE

Order Revised Oral Argument Schedule ORDER

Patent Owner's Demonstrative Exhibits Exhibit

Petitioner's Updated Exhibit List NOTICE

Petitioner's LEAP Request - GRANTED (Monica Arnold) NOTICE

Patent Owner's Reply in Support of Motion to Exclude Evidence REPLY

Petitioner's Opposition to Motion to Exclude Evidence OPPOSITION

Patent Owner's Motion to Exclude Evidence MOTION

Petitioner's Reply in Support of Motion to Strike REPLY

Order: ORDER Setting Oral Argument 37 C.F.R. § 42.70 ORDER

Patent Owner's Opposition to Petitioner's Motion to Strike OPPOSITION

Patent Owner's Fifth Updated Mandatory Notices NOTICE

Patent Owner's Request for Oral Argument OTHER

Petitioner's Request for Oral Argument OTHER

Patent Owner's Reply in Support of Motion to Strike REPLY

Petitioner's Motion to Strike MOTION

Petitioner's Opposition to Motion to Strike OPPOSITION

ORDER Modifying Scheduling Order 37 C.F.R. § 42.5 ORDER

Ex. 3103 Email Motion to Strike New Exhibits Exhibit

Petitioner's Objections to Evidence NOTICE

Deposition Transcript of Dr. Bokor 10.31.25 [IPR2024-01494] Exhibit

Errata Sheet 10-30 Bokor Depo Transcript [IPR2024-01447, -01493] Exhibit

Patent Owner's Sur-Reply to Petitioner's Reply OTHER

Errata Sheet 10-31 Bokor Depo Transcript [IPR2024-01494] Exhibit

US App. No. 10824835 (10-30-2025 Bokor Deposition EX2079) Exhibit

Transcript of 10-30-2025 Deposition of Jeffrey Bokor, Ph.D. Exhibit

Patent Owner's Motion to Strike MOTION

US App. No. 10646246 Exhibit

Order: ORDER Conduct of the Proceeding 37 C.F.R. § 42.5 ORDER

Exhibit 3102 Exhibit

Transcript of October 29, 2025 Board Conference Call Exhibit

Patent Owner's Notice of Submission of Transcript of October 29, 2025 Conference Call NOTICE

Patent Owner's Objections to Evidence OTHER

Patent Owner's Notice of Deposition of Dr. Jeffrey Bokor NOTICE

Patent Owner's Fourth Updated Mandatory Notices NOTICE

Renault (1999) Exhibit

Inaba (2000) Exhibit

Ross Deposition Transcript (September 18, 2025) Exhibit

Tonouchi (1987) Exhibit

Petitioner's Reply to Patent Owner Response REPLYTOOPP

Plummer (1999) Exhibit

Parkin (Google Scholar citation count) Exhibit

Ross Deposition Transcript (September 19, 2025) Exhibit

Bokor Reply Declaration Exhibit

Wang (1997) Exhibit

Patent Owner's Third Updated Mandatory Notices NOTICE

General Order: Related Matters Updates ORDER

Petitioner's Notice of Deposition of Caroline A. Ross, Ph.D. NOTICE

Order Denying Director Review of Institution Decision REHEARING

Petitioner's Objections to Evidence NOTICE

Jiang (2023) TDK - Tunneling magnetoresistive devices Exhibit

Errata Sheet 6-24 Bokor Depo Transcript [IPR2024-01494] Exhibit

Errata Sheet 6-25 Bokor Depo Transcript [IPR2024-01447, -01493] Exhibit

Nakatani (2018) WD - Read sensor technology Exhibit