Case Details
- Citation: [2018] SGHC 167
- Case Title: Nanofilm Technologies International Pte Ltd v Semivac International Pte Ltd & 2 Ors
- Court: High Court of the Republic of Singapore
- Suit No: Suit No 747 of 2016
- Date of Judgment: 26 July 2018
- Judges: George Wei J
- Hearing Dates: 23–26 October 2017; 11 December 2017
- Judgment Reserved: Yes
- Plaintiff/Applicant: Nanofilm Technologies International Pte Ltd
- Defendants/Respondents: Semivac International Pte Ltd (1st defendant); Xu Yibo (2nd defendant); Hu Lang (3rd defendant)
- Legal Areas: Copyright; Remedies; Employment-related contractual claims; Breach of confidence; Inducement of breach of contract (tort)
- Statutes Referenced: Copyright Act
- Cases Cited: [2018] SGHC 167 (as provided in metadata)
- Judgment Length: 104 pages, 28,146 words
Summary
Nanofilm Technologies International Pte Ltd v Semivac International Pte Ltd & 2 Ors concerned a dispute between a Singapore technology company and two former employees, as well as a company they set up after leaving. The plaintiff alleged that the 1st defendant infringed its copyrights by using and reproducing technical materials—specifically “Semivac slides” and “Semivac drawings”—that allegedly drew on the plaintiff’s pre-existing technical drawings. The plaintiff also brought claims against the 2nd defendant for breach of his employment contract, claims against both the 1st and 2nd defendants for breach of confidence, and a claim against the 3rd defendant for inducing the 2nd defendant to breach his contract.
The High Court (George Wei J) analysed the copyright infringement claim through the lens of whether the allegedly infringing drawings reproduced a “substantial part” of the plaintiff’s pre-existing technical drawings, and whether any “useful article” defence applied. The court also assessed the contractual and confidence-based claims by focusing on the existence and scope of contractual duties, the nature of confidential information, and whether the defendants’ conduct amounted to breach and/or inducement. Ultimately, the court’s findings turned on the evidential and doctrinal requirements for each cause of action, including the threshold for copyright infringement and the proof of breach of confidence and contractual obligations.
What Were the Facts of This Case?
The plaintiff, Nanofilm Technologies International Pte Ltd (“Nanofilm”), is a Singapore company incorporated in May 1999. It manufactures and provides Filtered Cathodic Vacuum Arc (“FCVA”) technology products and services. The plaintiff’s chief executive officer and founder is Dr Shi Xu, and its senior vice-president is Dr Wei Hao. Nanofilm’s business involves both hardware and software components used to perform FCVA coating processes, including the control software for carrying out coating operations and the machine components that enable the coating process.
The 1st defendant, Semivac International Pte Ltd (“Semivac”), is also a Singapore company providing products and services in the vacuum industry. Semivac specialises in pumps, spare parts, and installation and maintenance services. The 2nd defendant, Xu Yibo, was employed by Nanofilm from 6 April 2000 as an applications engineer and later promoted to manager—production mechanical. His duties included designing components using software. He was re-designated as a senior engineer—mechanical design in August 2014 and his employment was terminated on 13 January 2016. Importantly, during his employment he became a director of Semivac on 6 October 2008 and remained in that role until 11 January 2016.
The 3rd defendant, Hu Lang, was employed by Nanofilm from November 1999 to 4 January 2008 as a senior process engineer and later promoted to senior manager of after-sales technical support. He left Nanofilm to set up Semivac and has been its managing director since 6 October 2008. The factual matrix therefore involved a long period of overlap between the 3rd defendant’s tenure at Nanofilm and the 2nd defendant’s later employment, with both defendants ultimately connected to Semivac.
At the technology level, the court emphasised that FCVA technology is a method of coating materials or products with a thin film of metallic, ceramic, or composite substances. The technology can be used, for example, to coat articles with diamond-like carbon particles to reduce friction and prolong the life of the article. While the general technology is longstanding and appears to have roots in Soviet-era developments before the 1980s, Nanofilm developed its own version of FCVA technology using a “double bend filter” and other improvements. The court noted that Nanofilm did not rely on patents or registered design rights in this case, even though it asserted that it had obtained patents over its FCVA technology. The dispute therefore focused on copyright and related equitable and contractual claims rather than on patent infringement.
What Were the Key Legal Issues?
The first major issue was whether the 1st defendant infringed Nanofilm’s copyrights by reproducing a substantial part of Nanofilm’s pre-existing technical drawings. This required the court to determine (i) whether the “Semivac drawings” reproduced a substantial part of Nanofilm’s pre-existing technical drawings, and (ii) whether the “useful article” defence applied to the drawings such that copyright protection would not extend to the relevant subject matter.
Connected to this was the question of whether the copyrights in the Semivac drawings were infringed at all, which in turn depended on the scope of copyright protection for technical drawings and the factual comparison between Nanofilm’s materials and Semivac’s materials. The court also had to consider the “useful article” defence in relation to the drawings, which is a doctrinal mechanism that can limit copyright protection where the work is essentially functional or where the protected expression is closely tied to utilitarian aspects.
Beyond copyright, the court had to decide whether the 2nd defendant breached his employment contract with Nanofilm. This involved assessing the contractual duties owed by an employee to an employer, including duties relating to confidentiality and non-use/non-disclosure of the employer’s confidential information, and whether the 2nd defendant’s conduct after leaving (and/or during his directorship of Semivac) amounted to breach. The court also had to determine whether the 1st and 2nd defendants breached their duty of confidence owed to Nanofilm, and whether the 3rd defendant induced the 2nd defendant to breach his contract—an additional tortious claim that requires proof of inducement and breach.
How Did the Court Analyse the Issues?
On copyright infringement, the court approached the matter by first clarifying the nature of the materials and the technology. Although the case was not about patent infringement, the court found it helpful to understand how FCVA technology is implemented through hardware and software, and how technical drawings and slides fit into that ecosystem. The court observed that some hardware components are generic and available from original equipment manufacturers (OEMs), while other components might be designed in-house by Nanofilm to achieve advantages arising from particular shapes or dimensions. This distinction mattered because copyright protection for technical drawings may be affected by the degree to which the drawing reflects functional or standardised features rather than protectable expression.
The court then addressed the threshold question: whether the Semivac drawings reproduced a substantial part of Nanofilm’s pre-existing technical drawings. In copyright analysis, “substantial part” is not a purely quantitative test; it is concerned with qualitative significance. The court’s reasoning therefore required a careful comparison of the drawings, focusing on whether the allegedly infringing drawings captured the relevant protected elements of Nanofilm’s drawings rather than merely using ideas, general concepts, or unprotectable features. The court also considered that Nanofilm’s pre-existing drawings were the benchmark for infringement analysis, meaning that the plaintiff had to show that what Semivac produced was not independently created or derived from general knowledge, but instead reproduced protectable aspects of Nanofilm’s earlier work.
Crucially, the court also analysed the “useful article” defence. The useful article defence is relevant where the work’s subject matter is closely connected to utilitarian function. Technical drawings often depict objects or components that are designed to perform a function. If the drawing’s protected elements are inseparable from the functional aspects of the object, the defence may limit copyright protection. The court’s analysis therefore required it to identify what, in the drawings, was truly protectable expression and what was merely functional depiction. In doing so, the court had to balance the policy of protecting creative expression against the policy of not granting copyright monopolies over functional designs or engineering solutions.
Turning to the contractual claim against the 2nd defendant, the court examined the employment relationship and the duties that arose from it. The 2nd defendant’s role included designing components and using software, and he later became a director of Semivac while still employed by Nanofilm. These facts raised the possibility of conflicts of interest and potential misuse of knowledge acquired during employment. The court’s analysis would have required it to determine the scope of the employment contract obligations, including whether there were express terms (or implied duties) requiring the employee to refrain from using or disclosing confidential information, and whether the 2nd defendant’s conduct breached those duties.
For the breach of confidence claims, the court had to consider whether the information allegedly misused by the defendants qualified as confidential information in the legal sense. Breach of confidence typically requires proof that the information had the necessary quality of confidence, that it was imparted in circumstances importing an obligation of confidence, and that there was unauthorised use or disclosure. The court’s reasoning would also have required it to connect the confidential information to the allegedly infringing materials (slides and drawings) and to determine whether the defendants’ conduct crossed the line from permissible use of general skill and knowledge into unauthorised appropriation of confidential information.
Finally, the inducement of breach of contract claim against the 3rd defendant required the court to assess whether the 3rd defendant induced the 2nd defendant to breach his contractual obligations. This is a distinct tortious inquiry. The court would have needed to identify the nature of the inducement—whether through active encouragement, procurement, or other conduct—and to show that the inducement was causally connected to the breach. The fact that the 3rd defendant set up Semivac and served as its managing director since 2008 meant that the court likely scrutinised the relationship between the 3rd defendant’s actions and the 2nd defendant’s contractual duties.
What Was the Outcome?
The judgment ultimately resolved liability and remedies across the four pleaded causes of action: copyright infringement (against the 1st defendant), breach of contract (against the 2nd defendant), breach of confidence (against the 1st and 2nd defendants), and inducement of breach of contract (against the 3rd defendant). The court’s conclusions depended on whether the plaintiff met the doctrinal thresholds for each claim, particularly the requirement to show that the Semivac drawings reproduced a substantial part of Nanofilm’s pre-existing technical drawings and that any useful article defence did not bar protection.
On remedies, the court considered what relief was appropriate for any proven infringement or breach. The judgment structure indicates that the court separately addressed remedies against the 1st defendant for copyright infringement (including for the Semivac slides and Semivac drawings), against the 1st and 2nd defendants for breach of confidence, against the 2nd defendant for breach of contract, and against the 3rd defendant for inducing breach of contract. Practically, the outcome would have determined whether Nanofilm obtained injunctive relief, damages, account of profits, or other orders, and against which defendants such relief was granted.
Why Does This Case Matter?
This case is significant for practitioners because it illustrates how Singapore courts approach copyright claims involving technical materials and engineering drawings. Even where the subject matter is sophisticated and commercially valuable, the plaintiff must still satisfy the legal tests for infringement, including the “substantial part” requirement and the impact of defences such as the useful article defence. For companies in technology and manufacturing sectors, the decision underscores that copyright protection for technical drawings is not automatic; it depends on careful factual comparison and doctrinal fit.
Nanofilm also shows the importance of aligning pleadings and evidence across multiple legal causes of action. The plaintiff pursued copyright, contract, confidence, and inducement claims in parallel. This is a common strategy in disputes involving former employees and competing ventures. However, the court’s analysis demonstrates that each cause of action has its own elements and evidential burdens. A failure to prove one element—such as the substantial reproduction of protectable expression in copyright, or the existence and breach of contractual/confidential duties—can limit recovery even if there is suspicion of wrongdoing.
For law students and litigators, the case is a useful reference point on how courts treat the boundary between protectable expression and functional or generic engineering features. It also provides a framework for thinking about how employment-based duties and equitable confidentiality obligations can interact with later competitive activity. Where a former employee becomes involved in a competing company, the case highlights the need to document confidential information, define contractual restrictions clearly, and preserve evidence of what was used, how it was used, and whether it was derived from confidential sources.
Legislation Referenced
Cases Cited
- [2018] SGHC 167 (as provided in the supplied metadata)
Source Documents
This article analyses [2018] SGHC 167 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.