Japanese patent law firm for patents, trademarks, designs as well as IP strategy, branding and AI governance

弁理士法人IPX (IPX Patent Partners)

Tokyo (Minato-ku, Akasaka) · Osaka (Yodogawa-ku, Shin-Osaka)New on Amplifa

2018-04Founded

45Employees (20 patent attorneys, 24 support, 1 part-time;

2Locations: Tokyo (HQ) and Osaka

65 %Client share in the IT sector (as of 2025)

57 %Client share startups (as of 2025)

About IPX Patent Partners

IPX Patent Partners (弁理士法人IPX) is a patent law firm founded in 2018 with its head office in Tokyo (Akasaka, Minato-ku) and an office in Osaka (Shin-Osaka, opened June 2025). The firm offers filing and legal enforcement of patents, utility models, designs and trademarks as well as searches, expert opinions, dispute proceedings (trials, litigation), consulting contracts, IP strategy, branding, Digital Transformation, AI governance and value design consulting. The team comprises 20 patent attorneys, 24 support staff, 1 part-time employee and 4 alliance members. The firm works with a proprietary system for reconciling quality and speed (質速両立®) and serves clients across technologies, from fundamental research to cutting-edge technologies. Client structure (as of 2025): startups 57%, SMEs 17%, large enterprises 14%, universities and others 6%, individuals 6%; technical focus: IT 65%, chemistry 7%, mechanical/electrical engineering 6%. Team expertise covers electrical engineering/software/AI, mechanical engineering, chemistry, design and trademarks; working languages are Japanese, English and Korean. Internationally, filings are handled via a worldwide agent network.

Site: 107-0052 Minato-ku, Tokyo
Processes: Patent, Utility Model, Design, Trademark filing and prosecution, Searches and expert opinions, Disputes (trials, litigation), Consulting contracts, IP strategy, Branding, Digital transformation (DX), AI governance
Materials: Patent, Utility Model, Design, Trademark, IP Strategy, Branding, AI Governance, Dispute Proceedings
Founded: 2018-04
Employees: 45 (20 Patent
Industries: IT/Software/AI, Startups, Chemistry/Materials, Mechanical engineering/Electrical engineering, Universities/Research, Large enterprises

01
Consulting and IP strategy
02
Searches and expert opinions
03
Filing patent/utility model/design/trademark
04
Right maintenance and proceedings (trials, litigation)
05
Branding, DX, AI governance, value design

Services and Fields of Expertise

RECHTS

Patent, Utility Model, Design, Trademark

Filing and right maintenance of core rights for clients from IT, chemistry and mechanical/electrical engineering.

STRAT

IP Strategy, Branding, AI Governance

Strategic consulting on intangible assets from financing capability to market launch.

DISPUTE

Dispute Proceedings

Representation in invalidation and infringement proceedings (trials and litigation).

Locations

Tokyo (Akasaka, Minato-ku)

Head office (TODA BUILDING Aoyama 5F)

Osaka (Yodogawa-ku, Shin-Osaka)

Osaka office (Shin-Osaka Grand Building 10F, opened June 2025)

Industries

IT/Software/AIStartupsChemistry/MaterialsMechanical engineering/Electrical engineeringUniversities/ResearchLarge enterprisesSMEsChemistry/MaterialsMachinery/ElectricalAcademic researchLarge enterprisesSMEsUniversities

Additional services

Patent, Utility Model, Design, Trademark filing and prosecutionSearches and expert opinionsDisputes (trials, litigation)Consulting contractsIP strategyBrandingDigital transformation (DX)AI governanceStartup IP strategyEnterprise/new business supportValue design / advisory

Reference customers

Client mix (since founding, as of 2025): Startups 57%, SMEs 17%, Large enterprises 14%,

History

2018-04
Founded as a patent law firm (弁理士法人IPX).
2025-06
Opening of the Osaka office in the Shin-Osaka Grand Building.