IP Verse

Resonac Hard Disk Corporation et al. v. MR TECHNOLOGIES GMBH - IPR2026-00014

Explore the PTAB proceeding IPR2026-00014 filed by Resonac Hard Disk Corporation et al. against MR TECHNOLOGIES GMBH on Oct 8, 2025. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Case Details

Proceeding Number
IPR2026-00014
Filing Date
Oct 8, 2025
Petitioner
Resonac Hard Disk Corporation et al.
Respondent
MR TECHNOLOGIES GMBH
Status
Discretionary Denial
Respondent Application Number
12619849
Respondent Tech Center
1700
Respondent Patent Number
9928864
Institution Decision Date
Feb 3, 2026
Termination Date
Feb 3, 2026

Decision Documents New

Decision documents related to this case provide insights into the outcomes of proceedings. These documents are crucial for understanding the legal determinations and implications for the parties involved.

Document NameFiling DateCategoryFiling Party

Director Discretionary Decision: Deny

Feb 3, 2026PAPERBOARD

Ex-1042 Lex Machina statistics comparing final written decisions

Jan 8, 2026EXHIBITPETITIONER

Counsels Involved New

Details of counsels involved in proceeding number IPR2026-00014.

TypeName
Petitioner CounselBregman, Dionet al
Respondent CounselMilkey, Jameset al

Proceeding Documents

The table below shows documents filed in the case, listing each document name, filing date, document type, and filing party. Tracking these filings indicates the activity of the parties involved in the case, and the types of documents filed can provide insights into the legal strategies being employed.

Document NameFiling DateCategoryFiling Party

Alert me when new update on this case

Director Discretionary Decision: Deny

Feb 3, 2026PAPERBOARD

864 IPR - Petitioners' Updated Mandatory Notices

Jan 8, 2026PAPERPETITIONER

864 IPR - Petitioners' Opposition to PO's Discretionary Denial Brief

Jan 8, 2026PAPERPETITIONER

Ex-1037 Resonac v. MRT - Sotera Stipulation Letter (864 Patent_ IPR2026-00014)

Jan 8, 2026EXHIBITPETITIONER

Ex-1038 Shimizu Declaration - executed

Jan 8, 2026EXHIBITPETITIONER

Ex-1039 Judge Selna’s Grant Rate re Motions to Stay pending PTAB proceedings

Jan 8, 2026EXHIBITPETITIONER

Ex-1040 NDCA's Grant Rate re Motions to Stay pending PTAB proceedings

Jan 8, 2026EXHIBITPETITIONER

Ex-1041 USPTO Assignment Records - combined

Jan 8, 2026EXHIBITPETITIONER

Ex-1042 Lex Machina statistics comparing final written decisions

Jan 8, 2026EXHIBITPETITIONER

Ex-1043 Docket Entries for Toshiba Action

Jan 8, 2026EXHIBITPETITIONER

Ex-1044 Docket Entries for Resonac Action

Jan 8, 2026EXHIBITPETITIONER

Ex-1045 Patent Owner Motion to Dismiss or Transfer in Resonac DJ Action

Jan 8, 2026EXHIBITPETITIONER

Ex-1046 Median Time to Trial - Judge Patrick Joseph Schiltz (Seagate Action)

Jan 8, 2026EXHIBITPETITIONER

Ex-1047 Median Time to Trial - Judge James V Selna (Toshiba Action)

Jan 8, 2026EXHIBITPETITIONER

Ex-1048 Median Time to Trial - NDCal (Resonac DJ Action)

Jan 8, 2026EXHIBITPETITIONER

PATENT OWNER’S PRELIMINARY RESPONSE

Jan 8, 2026PAPERPATENT OWNER

Ex. 2010 - Excerpts from MR Technologies GmbH v. Western Digital Technologies, Inc., No. 22-cv-01599, Trial Tr. Day 3 (Volume 1)

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2011 - Declaration of Mark Re in Support of MR Tech’s Opposition to WD’s Motion for Summary Judgment of Invalidity, MR Technologies GmbH v. Western Digital Technologies, Inc., No. 22-cv-01599, Dkt. 270-33 (filed February 26, 2024)

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2012 - Complaint, MR Technologies GmbH v. Toshiba America Electronic Components, Inc. et al., No. 25-cv-00786, Dkt. 1 (C.D. Cal. Apr. 15, 2025)

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2013 - Excerpts from MR Technologies GmbH v. Western Digital Technologies, Inc., No. 22-cv-01599, Trial Tr. Day 6

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2014 - Joint Exhibit 2030 Western Digital’s Recent Developments in Magnetic Recording Media presentation by Kumar Srinivasan dated April 6, 2018

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2015 - Joint Exhibit 2057 Western Digital’s Recent Developments in Magnetic Recording Media presentation by Kumar Srinivasan dated March 19, 2019

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2016 - Excerpts from MR Technologies GmbH v. Western Digital Technologies, Inc., No. 22-cv-01599, Trial Tr. Day 3 (Volume 2)

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2017 - Excerpts from MR Technologies GmbH v. Western Digital Technologies, Inc., No. 22-cv-01599, Trial Tr. Day 5 (Volume 1)

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2018 - C. Papusoi et al., Measurements of Gilbert Damping Parameter α for CoPt-Based and CoFe-Based Films for Magnetic Recording Applications, 51 J. Phys. D: Appl. Phys. 325002 (2018)

Jan 8, 2026EXHIBITPATENT OWNER

2019 - Excerpts from MR Technologies GmbH v. Western Digital Technologies, Inc., No. 22-cv-01599, Trial Tr. Day 7 (Volume 2)

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2020 - Defendants’ Notice of Motion, Motion to Stay, and Memorandum in Support Thereof in MR Technologies GmbH v. Toshiba America Electronic Components, Inc. et al., No. 25-cv-00786, Dkt. 31 (C.D. Cal. Oct. 31, 2025)

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2021 - Complaint, Resonac Hard Disk Corporation and Resonac Am., Inc., No. 25-cv-8631, Dkt. 1 (N.D. Cal. Oct. 9, 2025)

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2022 - U.S. 7,550,210 (Berger)

Jan 8, 2026EXHIBITPATENT OWNER

Ex. 2023 - Excerpts from MR Technologies GmbH v. Western Digital Technologies, Inc., No. 22-cv-01599, Trial Tr. Day 7 (Volume 1)

Jan 8, 2026EXHIBITPATENT OWNER

PATENT OWNER’S REQUEST FOR DISCRETIONARY DENIAL OF INSTITUTION

Dec 8, 2025PAPERPATENT OWNER

Ex. 2001 - U.S. Patent No. 9,928,864 (“the ’864 patent”)

Dec 8, 2025EXHIBITPATENT OWNER

Ex. 2002 - U.S. Patent No. 11,138,997 (“the ’997 patent”)

Dec 8, 2025EXHIBITPATENT OWNER

Ex. 2003 - U.S. Patent No. 12,020,734 (“the ’734 patent”)

Dec 8, 2025EXHIBITPATENT OWNER

Ex. 2004 - Verdict Form dated July 26, 2024 in MR Technologies GmbH v. Western Digital Technologies, Inc., No. 22-cv-01599 (C.D. Cal. Aug. 26, 2022)

Dec 8, 2025EXHIBITPATENT OWNER

Ex. 2005 - Proposed Rules, Federal Register Vol. 90, No. 99 (Oct. 17, 2025), accessible at: https://www.govinfo.gov/content/pkg/FR-2025-10-17/pdf/2025-19580

Dec 8, 2025EXHIBITPATENT OWNER

Ex. 2006 - Showa Denko Was Reborn as Resonac on Jan. 1, 2023, https://www.resonac.com/corporate/name-change.html (last visited December 6, 2025)

Dec 8, 2025EXHIBITPATENT OWNER

Ex. 2007 - Excerpts from MR Technologies GmbH v. Western Digital Technologies, Inc , No. 22-cv-01599, July 23, 2024 Trial Tr. Vol. II at 72:11-24

Dec 8, 2025EXHIBITPATENT OWNER

Notice: Mandatory Notices

Nov 5, 2025PAPERPATENT OWNER

Notice: Power of Attorney

Nov 5, 2025PAPERPATENT OWNER

Notice: NOTICE OF FILING DATE ACCORDED TO PETITION AND TIME FOR FILING PATENT OWNER PRELIMINARY RESPONSE

Oct 10, 2025PAPERBOARD

Notice: Power of Attorney

Oct 8, 2025PAPERPETITIONER

Exhibit 1001

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1002

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1004

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1005

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1006

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1007

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1008

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1009

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1010

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1011

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1017

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1018

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1019

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1020

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1021

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1022

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1023

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1024

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1025

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1026

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1027

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1028

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1029

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1030

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1031

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1032

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1033

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1034

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1016

Oct 8, 2025EXHIBITPETITIONER

Petition: as filed

Oct 8, 2025PAPERPETITIONER

Exhibit 1003

Oct 8, 2025EXHIBITPETITIONER

Exhibit 1036

Oct 8, 2025EXHIBITPETITIONER