Employee Inventions (Article 35, Patent Act)

Plain-language explanation

Please note an important limitation: the retrieved materials provided to generate this explanation only contained the text of Trademark Act Article 35 (rules on pledges, co-ownership, and registration effects applied by reference), Design Act Article 35 (restrictions on exercising a design right when a pledge is set), and Patent Act Article 20 (succession of procedural effects). The actual text of Patent Act Article 35 (Employee Inventions) was not included in the retrieved data, so a precise, text-based explanation cannot be given here with full accuracy.

Generally speaking, Patent Act Article 35 is well known as the core provision governing "employee inventions" (shokumu hatsumei) — inventions made by employees in the course of their job duties. It typically addresses questions such as: whether the employer automatically obtains rights to use the invention, whether the employer can require advance assignment of the patent right to the company, and what "reasonable benefit" (compensation) the employee-inventor is entitled to receive in exchange. This article is central to any company's IP policy, employment invention regulations, and R&D contracts, since it balances the employer's investment in R&D infrastructure against the individual inventor's contribution.

Because the precise wording matters a great deal (e.g., thresholds for what counts as a duty-related invention, procedures for setting compensation, and requirements for consultation with employees), businesses and lawyers should confirm the current official text directly and consult a qualified Japanese patent attorney (benrishi) or IP lawyer before drafting or relying on internal employee invention rules. Related provisions on ownership, transfer, and registration effects of patent-adjacent rights (as cross-referenced in Trademark Act Art. 35) and on succession of procedural effects (Patent Act Art. 20) can become relevant when a company later needs to formally register or transfer rights originating from an employee invention.

日本語での解説

Common scenarios

• ▸A company sets up an employee invention compensation program and needs to confirm how much 'reasonable benefit' must be paid to inventors
• ▸An employee creates a patentable invention while working in the R&D department and the company wants to secure ownership of the patent right
• ▸A startup drafts its employment agreements and IP assignment policies to pre-emptively secure rights to future employee inventions
• ▸A departing employee disputes the compensation received for an invention made during their employment
• ▸A company merges with another and needs to determine how existing employee invention rights and obligations transfer to the new entity