Case Details
- Citation: [2024] SGHC 163
- Court: High Court of the Republic of Singapore
- Date: 2024-06-27
- Judges: Lee Seiu Kin SJ
- Plaintiff/Applicant: TOWA Corp
- Defendant/Respondent: ASMPT Singapore Pte Ltd and another
- Legal Areas: Damages — Assessment ; Intellectual Property — Remedies
- Statutes Referenced: None specified
- Cases Cited: [2024] SGHC 163, [2023] 5 SLR 870
- Judgment Length: 51 pages, 15,037 words
Summary
This case concerns the assessment of damages to be awarded to TOWA Corp (the plaintiff) for the infringement of its patent by ASMPT Singapore Pte Ltd (the first defendant). The High Court of Singapore had previously found the first defendant liable for infringing TOWA's patent, and this judgment deals with the determination of the appropriate quantum of damages. The key issues addressed include the calculation of lost profits from lost initial sales of TOWA's machines, the impact of TOWA's market share, the treatment of additional sales and after-sales services, and the applicable discount rate and interest. The court provided detailed guidance on the proper methodology for assessing the damages owed to TOWA.
What Were the Facts of This Case?
TOWA Corp is a company that provides semiconductor packaging solutions, including the sale of its YPS machines. The first defendant, ASMPT Singapore Pte Ltd, had manufactured and sold moulding machines known as the IDEALmould machine, which were found to infringe TOWA's patent. The Court of Appeal had previously upheld the finding that the first defendant's acts of making, disposing of, offering to dispose of, keeping and offering for use the IDEALmould machine constituted infringements of TOWA's patent. The damages or account of profits for the infringement were to be calculated for the period from 20 April 2007 to 5 July 2014 (the "Claim Period").
In the earlier TOWA v ASM Technology Singapore Pte Ltd [2023] 5 SLR 870 judgment, the court had set out the parameters for assessing the damages to be awarded to TOWA. This included determining the hypothetical number of sales of TOWA's YPS machines that it would have made but for the first defendant's infringement (the "But-for Scenario"), as well as the loss of profits from additional sales of parts and after-sales services related to those machines. The present judgment addresses the further clarifications and determinations made by the court in subsequent hearings to finalize the damages calculation.
What Were the Key Legal Issues?
The key legal issues addressed in this case were:
1. The calculation of the maximum number of "But-for Sales" of TOWA's YPS machines that it would have made in the absence of the first defendant's infringement.
2. Whether the Hong Kong market should be considered part of the "China" market or the "Asia (Others)" market for the purposes of the damages calculation.
3. The appropriate level of specificity to be used in calculating TOWA's market share for its YPS machines.
4. The types of additional costs of sales that should be excluded from the damages calculation.
5. TOWA's entitlement to loss of profits from lost additional sales of parts and after-sales services related to the YPS machines it would have sold.
6. The applicable discount rate and interest to be applied to the damages award.
How Did the Court Analyse the Issues?
On the issue of the maximum number of "But-for Sales", the court determined that this should be 339, excluding the two unsold IDEALmold machines and the 72 170T IDEALmold machines. The court rejected the defendants' arguments to further reduce this number.
Regarding the classification of the Hong Kong market, the court found that it should be considered part of the "China" market, not the "Asia (Others)" market, for the purposes of the damages calculation.
In determining TOWA's relevant market share, the court held that only the portion of TOWA's market share relating to its YPS machines should be used, rather than its overall market share. The court also specified that the market share should be calculated to one decimal place.
On the issue of additional costs of sales, the court excluded the unclassified development costs, unclassified disposal costs, and unclassified valuation loss from the general additional costs of sales.
Regarding TOWA's claim for lost profits from additional sales, the court found that TOWA was entitled to such losses for the YPS machines it would have sold during the loss-making years. For years where there was no actual data on additional part sales, the court directed an average of the 2011-2018 period to be used. The court also held that losses from additional part sales should be zeroed in years where they were loss-making.
Finally, the court determined that a discount rate of 10% should be applied to the lost profits from additional sales and after-sales services, starting from the date of the judgment assessing the damages.
What Was the Outcome?
Based on the court's findings and the agreed computations of the parties, the court awarded damages to TOWA in the sum of ¥386,942,396, excluding interest and costs. The court also ordered that pre-judgment interest at 5.33% per annum be applied from the date of the writ until the date of the judgment on 15 March 2024, and post-judgment interest at 5.33% per annum from 15 March 2024 until the date of payment of the judgment sum.
Why Does This Case Matter?
This case provides valuable guidance on the proper methodology for assessing damages in patent infringement cases, particularly in the context of lost profits. The court's detailed analysis and rulings on issues such as the calculation of "But-for Sales", the treatment of market share, and the inclusion/exclusion of various cost components offer a comprehensive framework for future courts and litigants to follow.
The case also highlights the importance of carefully considering the impact of infringement on a patentee's ancillary revenue streams, such as additional parts sales and after-sales services. The court's recognition of TOWA's entitlement to these lost profits underscores the need for a holistic approach to damages assessment in intellectual property disputes.
Furthermore, the court's determinations on the applicable discount rate and interest calculations provide guidance on the financial considerations that should be factored into the final damages award. This case will serve as an important precedent for Singapore courts in addressing complex damages issues in patent infringement cases going forward.
Legislation Referenced
- None specified
Cases Cited
Source Documents
This article analyses [2024] SGHC 163 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.