Value to Win Together
We are professionals in intellectual property business strategy,
co-creating value and competitive advantage.
Shobayashi International Patent &Trademark Office, P.C.
maximize the value of our clients’ intellectual assets and management resources
and co-create corporate value across all phases of the innovation cycle - creation, protection, and utilization.
With a one-stop service structure provided by a diverse team of experts,
including patent attorneys from multiple technical fields,
former officials from relevant government ministries,
former corporate and financial professionals, attorneys-at-law,
and intellectual property analysts,
we proactively propose advanced strategies
from discovery and rights acquisition to commercialization,
delivering services that are both rapid and of the highest quality.
A Suite of Services for Creating Value and Advantage
We offer a diverse range of services designed to maximize the value of our clients’
intellectual assets and management resources,
and to co-create corporate value.
Below are examples of our services.

- Creation
Venture & Startup Support
- Protection
Patent / Utility Model / Design / Trademark Filing, Prosecution, and Registration
- Protection
Fast-Track Filing
- Utilization
IP Landscape®
- Utilization
IP Due Diligence®
- Utilization
Monetization
- Creation
- Utilization
IP Marketing
- Creation
- Protection
- Utilization
Consulting
- Protection
- Utilization
Branding
- Utilization
IP Finance
- Creation
- Protection
- Utilization
AI Utilization
- Utilization
Standards & Certification
Knowledge and experience support your business
Our experienced staff in each field will support you.
Patent attorneys, lawyers, and former government officials work together to provide support from a multifaceted perspective.


Shobayashi International Patent and Trademark Office, a patent attorneys' corporation, is recruiting partners, associates (patent attorneys and engineers), managers, and administrative staff.
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2026.1.22information
Website Renewal Announcement
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2022.9.1news
SIPTO will join IPBC Asia 2022 in Tokyo as a Gold Sponsor
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2020.7.1news
SIPTO and President Shobayashi identified as a leading ‘go-to’ resource firm in “IAM Patent 1000” for three years in a raw
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2020.7.1news
SIPTO identified as a leading ‘go-to’ resource firm for those seeking world-class private practice patent expertise in “IAM Patent 1000”
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2020.4.1news
SIPTO welcomed by WIPO as a WIPO GREEN partner, the first amongst Japanese patent law firms
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2019.8.20news
SIPTO will join IPBC Asia 2019 in Tokyo as a Bronze Sponsor
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2019.5.21news
SIPTO supporting the LESI 2019 Annual Conference as a silver sponsor
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2019.4.17news
SIPTO joins the EU-Japan Centre to advance IP Rights between Europe and Japan
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2019.3.11news
SIPTO will attend the INTA 141st Annual Meeting.
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2019.3.8news
President Masayuki Shobayashi is invited to give a lecture at the international forums held in China.
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2019.3.1news
SIPTO will support the IPBC Shenzhen as a silver sponsor.








