Optimum Imaging v. Okamura & OM Digital Solutions — Dismissed With Prejudice
Optimum Imaging Technologies, LLC asserted four digital camera imaging patents against Okamura Corporation and OM Digital Solutions — makers of the OM-1, OM-5, and OM-D series — in the Eastern District of Texas. The parties filed a joint motion to dismiss, and the court closed the case with prejudice after 596 days, each side bearing its own legal costs.
Four imaging patents, twelve camera models, one joint exit
Filed in October 2023 in the Eastern District of Texas before Judge Amos L. Mazzant, this infringement action saw Optimum Imaging Technologies, LLC assert four U.S. patents — US7612805B2, US10873685B2, US8451339B2, and US10877266B2 — against Okamura Corporation and OM Digital Solutions. The accused products span twelve Micro Four Thirds and mirrorless camera models sold under the OM System and Olympus brands, including the flagship OM-1, the OM-5, the OM-D E-M1 series, and the PEN-F.
The case closed on 5 June 2025 via a joint motion to dismiss, which the court granted and ordered the dismissal with prejudice. Crucially, each party was ordered to bear its own attorneys’ fees, costs, and expenses. A with-prejudice dismissal extinguishes Optimum Imaging’s right to refile these specific claims against these defendants in any U.S. federal court, providing OM Digital Solutions and Okamura with a permanent bar to this particular litigation.
At 596 days, the case ran considerably longer than a simple early voluntary dismissal typically would, suggesting the parties engaged in substantive negotiation — possibly including licensing discussions or claim scope disputes — before agreeing to exit. The public record does not disclose whether any financial consideration changed hands as part of the resolution. The cost-neutral order is consistent with a negotiated resolution rather than a unilateral capitulation by either side.
Filing to Dismissed with Prejudice in 596 days
596 days — longer than the E.D. Texas median for patent cases that settle pre-trial
Dismissed with prejudice: what the joint exit means for both parties
Joint motion triggers a final, merits-barring dismissal
A dismissal with prejudice entered on a joint motion functions as a final adjudication on the merits under Federal Rule of Civil Procedure 41. Because both parties moved together, the court’s role was essentially ministerial — the substantive deal, if any, was struck privately. The with-prejudice designation means the asserted claims of all four patents cannot be re-litigated against these defendants, regardless of future developments.
Rule 41 — permanent barOptimum Imaging loses the right to refile against these defendants
By agreeing to a with-prejudice dismissal, Optimum Imaging permanently surrenders its infringement claims against Okamura and OM Digital Solutions on these four patents. The public record does not confirm whether any licensing fee or settlement payment was received. Patent assertion entities in similar postures typically only accept with-prejudice terms when a confidential financial arrangement or licensing agreement underpins the joint motion.
Claims extinguishedOM Digital Solutions and Okamura secure permanent peace on four patents
The defendants — represented by Morgan Lewis & Bockius — obtained a dismissal that fully insulates them from these specific patent claims going forward. The cost-neutral order means they absorb their own legal spend, which is the norm in jointly negotiated exits and does not suggest a defendant-side capitulation. Each bearing its own costs is consistent with an arm’s-length resolution rather than a concession.
Future claims barredTwelve camera SKUs cleared of this specific patent exposure
All twelve accused camera models — from the OM-1 and OM-5 to the PEN-F and OM-D E-M10 Mark II — are now free of infringement liability from these four Optimum Imaging patents vis-à-vis these defendants. However, the patents themselves remain in force and could be asserted against other camera manufacturers. Companies operating in the mirrorless and Micro Four Thirds imaging space should monitor US7612805B2 and its family members.
Patents still enforceable vs. othersFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Optimum Imaging Technologies, LLC | Company | Patent assertion entity — holder of US7612805B2 and 3 related digital imaging patentsSearch in Eureka ↗ |
| Defendant | Okamura Corporation | Company | Okamura Corp. and OM Digital Solutions — manufacturers of OM System and Olympus camerasSearch in Eureka ↗ |
| Co-Defendant | Om Digital Solutions | Company | Search in Eureka ↗ |
| Plaintiff counsel | Edgar Leon Carter | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Elizabeth Ashley O’Brien | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Elvin E. Smith , III | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Gregory Blake Thompson | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Hunter Scott Palmer | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | James Mark Mann | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | James Michael Woods | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Korula T. Cherian | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Monica Litle Goff | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Robert M Harkins | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Roger D. Sanders | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Ronald Wielkopolski | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Scott Wayne Breedlove | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Stephanie R Wood | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff counsel | Thomas M. Dunham | Attorney | Counsel for Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Carter Arnett PLLC | Law Firm | Representing Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Cherian LLP | Law Firm | Representing Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Mann, Tindel & Thompson Attorneys at Law | Law Firm | Representing Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Sanders, Motley, Young & Gallardo PLLC | Law Firm | Representing Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Siebman Law – Sherman | Law Firm | Representing Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Plaintiff law firm | The Mann Firm | Law Firm | Representing Optimum Imaging Technologies, LLCSearch in Eureka ↗ |
| Defendant counsel | Amanda S. Williamson | Attorney | Counsel for Okamura CorporationSearch in Eureka ↗ |
| Defendant counsel | Jitsuro Morishita | Attorney | Counsel for Okamura CorporationSearch in Eureka ↗ |
| Defendant counsel | Karon N. Fowler | Attorney | Counsel for Okamura CorporationSearch in Eureka ↗ |
| Defendant counsel | Kerisha Bowen | Attorney | Counsel for Okamura CorporationSearch in Eureka ↗ |
| Defendant counsel | Liya Levin | Attorney | Counsel for Okamura CorporationSearch in Eureka ↗ |
| Defendant counsel | Melissa Marie Story | Attorney | Counsel for Okamura CorporationSearch in Eureka ↗ |
| Defendant law firm | Morgan Lewis | Law Firm | Representing Okamura CorporationSearch in Eureka ↗ |
| Defendant law firm | Morgan Lewis & Bockius LLP | Law Firm | Representing Okamura CorporationSearch in Eureka ↗ |
| Defendant law firm | Morgan Lewis & Bockius LLP (Palo Alto) | Law Firm | Representing Okamura CorporationSearch in Eureka ↗ |
| Defendant law firm | Morgan Lewis & Bockius, LLP – Houston | Law Firm | Representing Okamura CorporationSearch in Eureka ↗ |
| Defendant law firm | Morgan Lewis & Brockius LLP (DC) | Law Firm | Representing Okamura CorporationSearch in Eureka ↗ |
| Presiding judge | Judge Amos L Mazzant | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order grants the joint motion in full and dismisses both Plaintiff’s infringement claims and Defendants’ counterclaims with prejudice. The symmetrical dismissal — covering claims and counterclaims alike — suggests a clean bilateral exit with no surviving obligations under the litigation itself. The cost-neutral fee allocation is the standard outcome in jointly negotiated patent dismissals and does not indicate which party, if either, holds a stronger substantive position on the merits. The with-prejudice designation is the operative term for future enforcement: Optimum Imaging is permanently barred from reasserting these four patents against Okamura Corporation and OM Digital Solutions.
US7612805B2 — digital camera imaging pipeline patents in suit
US7612805B2 (application no. US11/825521) is the lead patent in Optimum Imaging’s assertion, covering digital camera imaging technology. The portfolio also includes US10873685B2 (US13/691805), US8451339B2 (US12/586221), and US10877266B2 (US16/692972). The range of application numbers — spanning 2007 through 2019 filing periods — indicates a continuation strategy designed to maintain coverage as camera imaging architectures evolved. The most recent patent, US10877266B2, carries a 2019 application date, suggesting the portfolio was actively prosecuted to track emerging mirrorless and computational imaging implementations.
The assertion against twelve distinct SKUs across OM Digital Solutions’ entire mirrorless lineup — from entry-level PEN bodies to the professional OM-1 — implies these patents target fundamental imaging pipeline functions rather than niche product features. For competitors in the mirrorless, Micro Four Thirds, and BSI-CMOS camera segments, this portfolio represents a meaningful litigation risk. The continued validity of all four patents post-dismissal means the same claim set could be directed at Sony, Panasonic, Fujifilm, or any other manufacturer whose camera architectures overlap with the asserted claim scope.
Should you run an FTO against US7612805B2 and the Optimum Imaging portfolio?
Any company designing, manufacturing, or distributing digital cameras — particularly mirrorless, Micro Four Thirds, or interchangeable-lens systems — should treat this four-patent portfolio as an active FTO priority. The fact that Optimum Imaging targeted the full OM Digital Solutions lineup suggests broad claim scope across standard imaging architectures. Product teams developing autofocus systems, image signal processors, or computational exposure engines are most likely in the line of fire.
PatSnap Eureka’s FTO Search Agent lets you map claim language from US7612805B2, US10873685B2, US8451339B2, and US10877266B2 against your product’s technical specification in minutes. Eureka surfaces claim-by-claim overlap risk, identifies prior art that may support invalidity arguments, and flags continuation applications that could extend the patent family’s reach — giving your IP and engineering teams the clarity to make design-around decisions before a demand letter arrives.
Run a freedom-to-operate analysis on US7612805B2 to assess your product’s exposure
Run FTO in Eureka →Similar patent cases: digital camera imaging assertions in E.D. Texas
Explore related infringement actions involving digital camera and computational imaging patents litigated in the Eastern District of Texas federal court.
What this case signals for the digital camera imaging IP landscape
Four imaging patents, twelve accused SKUs, and a cost-neutral joint exit — here is what IP teams in the camera and computational imaging sector should take away.
With-prejudice joint dismissals suggest a private resolution likely occurred
Patent assertion entities rarely agree to with-prejudice dismissals without some consideration. The 596-day duration and the involvement of multiple law firms on both sides suggests substantive engagement — whether licensing, cross-licensing, or a lump-sum settlement — before the joint motion was filed. The absence of a public financial term is standard in these exits.
The four asserted patents remain live and enforceable against third parties
The dismissal only binds Okamura and OM Digital Solutions. US7612805B2, US10873685B2, US8451339B2, and US10877266B2 remain valid and enforceable. Any competing camera manufacturer — particularly those using similar autofocus, image processing, or sensor readout architectures — should assess their exposure to these patents before launching new products.
Optimum v Okamura — key questions answered
The case was dismissed with prejudice by joint motion on 5 June 2025. Judge Amos Mazzant of the Eastern District of Texas granted the parties’ joint motion, dismissing both Optimum Imaging’s infringement claims and the defendants’ counterclaims. Each party was ordered to bear its own attorneys’ fees and costs. The with-prejudice designation permanently bars Optimum Imaging from reasserting these four patents against Okamura and OM Digital Solutions.
Optimum Imaging asserted four patents: US7612805B2, US10873685B2, US8451339B2, and US10877266B2. The patents span application dates from approximately 2007 to 2019, consistent with a continuation prosecution strategy. All four remain in force and enforceable against parties other than the defendants named in this case.
Twelve camera models were accused: OM-1, OM-5, OM-D E-M1 Mark II, OM-D E-M1 Mark III, OM-D E-M10 Mark II, OM-D E-M1X, OM-D E-M5 Mark III, OM-D EM1, OM-D E-M5 Mark II, PEN E-PL7, PEN E-PL8, and PEN-F. The breadth of the accused lineup — spanning entry-level to professional bodies — suggests the patents target core imaging pipeline functionality common across the product range.
No. A dismissal with prejudice entered on a joint motion carries no merits finding. The court made no ruling on validity, infringement, or claim construction. The patents US7612805B2, US10873685B2, US8451339B2, and US10877266B2 remain presumptively valid and enforceable. The dismissal only bars Optimum Imaging from suing Okamura and OM Digital Solutions on these specific patents.
The Eastern District of Texas is a historically plaintiff-favourable patent venue known for its fast docket, experienced patent judiciary, and large jury awards. Patent assertion entities frequently file there against foreign defendants — including Japanese electronics companies — because the venue creates significant litigation cost pressure that can accelerate settlement negotiations. Judge Mazzant, who presided here, is an experienced patent jurist in E.D. Texas.
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