Oldnar Corp. v. Sanyo N. Am. Corp.

Court of Appeals for the Sixth Circuit·Decided May 12, 2026·No. 25-1589·Unpublished

Opinion

NOT RECOMMENDED FOR PUBLICATION File Name: 26a0211n.06

Case Nos. 25-1336/1589

UNITED STATES COURT OF APPEALS FOR THE SIXTH CIRCUIT

FILED

May 12, 2026

) KELLY L. STEPHENS, Clerk OLDNAR CORPORATION, )

Plaintiff-Appellant/Cross-Appellee, )

) ON APPEAL FROM THE v. ) UNITED STATES DISTRICT ) COURT FOR THE WESTERN SANYO NORTH AMERICA CORPORATION, et al., ) DISTRICT OF MICHIGAN Defendants-Appellees/Cross-Appellants. )

) OPINION

Before: SUTTON, Chief Judge; MOORE and BUSH, Circuit Judges.

The court delivered a PER CURIAM opinion. BUSH, J. (pp. 11–17), delivered a separate dissenting opinion.

PER CURIAM. This case returns to us for a second time. In 2008, Nartron Corporation (known today as “Oldnar”) and Sanyo Corporation (now a part of Panasonic) formed an agreement to work together on an in-car touchscreen, hoping to sell the product to General Motors. About 18 months later, Sanyo left Nartron for a new partner. Nartron responded by filing this federal lawsuit, alleging breach of contract and related claims. The district court granted summary judgment to Sanyo, but we reversed in part (finding there was potential liability on the breach of contract and unjust enrichment claims) and remanded for further consideration.

On remand, the district court found contract liability up to November 2009 but awarded only nominal damages in view of Nartron’s failure to establish proof of cognizable damages up to

that point. The court found no further liability on Nartron’s contract claim and no liability on its unjust enrichment claim. And it denied Sanyo’s request for attorney’s fees. Because we agree with the district court’s damages ruling, and Nartron has presented no other damages calculation method or evidence to support their measure of damages, we affirm on that ground.

I.

Nartron Corporation makes touchscreen interfaces. Sanyo Corporation makes digital user interface systems. See Oldnar Corp. v. Panasonic Corp. of N. Am., 766 F. App’x 255, 257 (6th Cir. 2019). In early 2008, the two companies joined forces to compete for a contract to produce digital interfaces for General Motors. Id. To that end, they entered into a Development and Supply Agreement on April 2, 2008, committing to work together on an in-car touchscreen that Sanyo could pitch to General Motors.

The terms of the agreement require some explanation. Section 9.3 of the agreement forbids either party from using the other’s “intellectual property,” and section 1.3 defines intellectual property “broadly.” Id. at 257–58, 262. Section 5.1 structures “Product Agreement[s].” Id. at 258. These agreements govern the parties’ relationship in two events: (1) if General Motors awards the touchscreen contract to Sanyo based on a product jointly developed with Nartron and (2) if Sanyo selects Nartron as the supplier of the touchscreen hardware for the contract. Id. By contrast, if General Motors selects the product jointly developed by Sanyo and Nartron, but thereafter Sanyo declines to select Nartron as the manufacturer or supplier, section 5.2 requires Nartron to license its intellectual property to Sanyo. Id. In that event, the same section grants Nartron royalties presumptively set at a 10% royalty on sales of the jointly developed product. Id.

In July 2009, Nartron and Sanyo jointly developed a prototype that initially appeared to impress General Motors. Id. With Nartron’s help, Sanyo continued to advance through General

Motors’ contracting process. Events took a turn in November of that year, however, when Sanyo informed Nartron that it would use an alternative to Nartron’s proprietary microchip. Id. at 259. Working with a new partner (Atmel Corporation), Sanyo spent approximately $4,000,000 and 16 months to transition from the design it had developed with Nartron to a new product. It then won the General Motors contract, eventually receiving hundreds of millions of dollars in revenue.

Jilted, Nartron filed this federal lawsuit against Sanyo and Panasonic, which subsumed Sanyo in a merger. The operative complaint alleged breach of contract and unjust enrichment. The district court granted summary judgment to Sanyo. Id. On appeal, we affirmed in part, reversed in part, and remanded. Id. at 270–71. We held that Sanyo may have breached section 9.3 of the agreement by using Nartron’s intellectual property, but that it had not breached sections 5.1 or 5.2. Id. We also held that Nartron may possess a valid unjust enrichment claim for the period after the Development Agreement ended. Id. at 267.

On remand, the district court held that Sanyo breached section 9.3 by using Nartron’s intellectual property “for the period until November 2009.” R.439 at 8. After that point, it reasoned, the product changed sufficiently that Sanyo no longer used Nartron’s intellectual property. Liability settled, the parties briefed damages. Nartron identified one, and only one, method for calculating damages. The correct figure, it insisted, should track section 5.2’s presumptive 10% royalty. The district court rejected that approach, noting that the Development Agreement provided for the 10% royalty figure only if Nartron and Sanyo jointly developed a technological product sold to a final purchaser. The final product that Sanyo sold to General Motors, however, was not the same one Sanyo developed with Nartron. Finding Nartron’s sole measure of damages irrational and finding no evidence (or argumentation) to support a different approach, the district court awarded $1 in nominal damages.

Sanyo sought costs. Noting that it offered to stipulate to a $100,000 judgment, Sanyo moved for costs under Civil Rule 68 and Michigan Court Rule 2.405(D)(1). The Michigan court rule includes attorney’s fees within its definition of costs. The district court held that state-law procedural rules like Michigan Court Rule 2.405(D)(1) do not apply in federal court. It accordingly granted Sanyo costs while denying it fees.

Nartron appealed, and Sanyo cross-appealed.

II.

Start with Nartron’s appeal. It challenges the district court’s denial of its breach-of-

contract claim for conduct after November 2009, the court’s rejection of its unjust enrichment claim, and the court’s award of only nominal damages for the contract claim up to November 2009. Michigan law applies. Oldnar, 766 F. App’x at 260. On appeal from a bench trial, we give fresh review to the district court’s legal conclusions and defer to its fact findings unless the evidence clearly contradicts them. Chesnut v. United States, 15 F.4th 436, 441 (6th Cir. 2021). Because we agree with the district court’s damages ruling, and Nartron stated that it would use the same damages-calculation method for any damages arising post-November 2009, we need not reach the district court’s liability decision. Regardless of liability after November 2009, Nartron offers no cognizable theory of damages, the only remedy it seeks.

Nominal damages on contract claim. Parties seeking damages bear the burden of proving damages “with a reasonable degree of certainty.” Allen v. Mich. Bell Tel. Co., 232 N.W.2d 302, 304–05 (Mich. Ct. App. 1975). “In the absence of an allegation and proof of actual damages, the plaintiff c[an] recover only nominal damages.” Barsky v. Katz, 216 N.W. 382, 383 (Mich. 1927); see 4041-49 W. Maple Condo. Ass’n v. Countrywide Home Loans, Inc., 768 N.W.2d 88, 93 (Mich. Ct. App. 2009) (per curiam).

Nartron failed to provide evidence of damages, prompting the district court to award only nominal damages. As Nartron admitted at oral argument in this Court, it presented evidence only for a damages methodology that adopted the contract’s default 10% royalty for misappropriation of intellectual property. Oral Arg. at 7:28–7:40. Because the record does not support that approach and because it was the only one Nartron put forth, nominal damages were appropriate.

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Oldnar Corp. v. Sanyo N. Am. Corp., (6th Cir. 2026).

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