You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: March 26, 2026

Profile for Japan Patent: 2023133494


✉ Email this page to a colleague

« Back to Dashboard


US Patent Family Members and Approved Drugs for Japan Patent: 2023133494

The international patent data are derived from patent families, based on US drug-patent linkages. Full freedom-to-operate should be independently confirmed.
US Patent Number US Expiration Date US Applicant US Tradename Generic Name
⤷  Start Trial Nov 27, 2033 Sage Therap ZULRESSO brexanolone
>US Patent Number >US Expiration Date >US Applicant >US Tradename >Generic Name

Detailed Analysis of the Scope, Claims, and Patent Landscape for Japan Patent JP2023133494

Last updated: October 6, 2025


Introduction

Patent JP2023133494 pertains to a recent innovation in the pharmaceutical sector filed in Japan. Analyzing its scope, claims, and surrounding patent landscape provides insights into its potential market impact, the breadth of its protection, and strategic positioning within the existing patent environment. This detailed review aims to inform business decisions, research directions, and strategic patent planning concerning this patent.


Patent Overview

Publication and Filing Details

Japan patent JP2023133494 was published in 2023, indicating that the application was filed shortly prior, likely in 2022 or 2023. The applicant’s identity, detailed inventors' info, and assignee are critical to understanding its strategic positioning, but these specifics are not provided here. It is essential to cross-reference the Japanese patent application with its international counterparts for comprehensive landscape analysis.

Technology Domain

While the precise technology is not explicitly detailed, the context—most recent patent filings—suggests involvement in innovative drug formulations, novel active compounds, or delivery systems. The focus appears aligned with current trends, such as targeted therapies, biologics, or combination treatments.


Scope of the Patent Claims

Claim Structure and Types

Patent claims define the legal boundary of an invention. Typically, they encompass independent and dependent claims:

  • Independent Claims: Broadly define the core invention, outlining the essential features or elements.
  • Dependent Claims: Narrower, providing specific embodiments, particular features, or alternative options.

Without the full text, we infer that JP2023133494 likely contains claims covering:

  1. Novel Chemical Entities or Compounds: Claims covering specific molecules, derivatives, or formulations with patentable novelty and inventive step.
  2. Methods of Manufacturing or Use: Claims may include methods for synthesizing the compound or therapeutic uses, particularly if these contribute to the novelty.
  3. Delivery Systems or Formulations: If aimed at improving drug bioavailability, stability, or targeting.
  4. Combination Therapies: Claims possibly covering combination uses with other agents, expanding patent scope.

Claim Breadth and Robustness

The scope’s breadth scales with the language used—vague, broad claims risk invalidation, while narrow claims provide limited protection. Effective claims probably balance specificity and breadth, claiming core inventive features while allowing fallback positions.

Legal and Strategic Considerations

  • Overlap with Existing Patents: The scope is key to avoiding prior art conflicts. Patent examiners assess novelty based on prior art references, including older patents, scientific publications, and existing drugs.
  • Enforceability: Broad functional claims enhance enforceability but may be more vulnerable to validity challenges; narrower scope enhances resilience but limits market coverage.

Patent Landscape Analysis

Global and Regional Patent Position

  • Japanese Patent Environment: Japan’s patent system provides strong protection for pharmaceuticals, emphasizing inventive step and utility.
  • International Trends: The applicant’s strategic filing likely extends to filings in major markets such as the US, EU, China, and Korea, especially if the innovation targets global commercialization.
  • Competitor Patents: Key players in the area—such as pharmaceutical giants and biotech firms—may hold patents on similar compounds or technologies, creating potential freedom-to-operate (FTO) or infringement considerations.

Similar or Cited Patents

Patent JP2023133494 probably cites prior art patents and literature related to its domain. Comparable patents could include:

  • Patents on predecessor compounds or formulations.
  • Patents on related drug delivery technologies.

In the landscape, close art could include patents that bridge the same mechanism of action, therapeutic target, or compound class.

Patent Family and Family Members

A typical patent application forms part of a broader family, including PCT applications and national phase entries. These expanded protections heighten the patent’s strategic value.

Threats and Opportunities

  • Infringement Risks: Clear claim language and broad coverage enable better enforcement.
  • Innovation Space: The patent landscape may be crowded or sparse depending on the novelty of the invention, influencing R&D investment decisions.
  • Designation of Data Exclusivity & Market Entry: Patents bolster exclusivity periods, especially relevant in Japan, which grants 20 years from filing.

Critical Appraisal of Patent Strength and Limitations

Strengths

  • Well-crafted claims that balance breadth and specificity maximize market protection.
  • Strategic regional filings safeguard approval gains in key jurisdictions.
  • Alignment with existing patent families enhances defensive IP positioning.

Weaknesses

  • Overly narrow claims risk easy workaround.
  • Broad functional claims may be challenged on inventive step or novelty grounds.
  • Potential overlap with prior art could limit enforceability.

Implication for Stakeholders

  • Pharmaceutical Companies: The patent offers potentially valuable rights to a novel compound or formulation, impacting licensing, partnerships, or in-house R&D.
  • Research & Development: The scope indicates a promising target area, guiding future innovations or alternative methods.
  • Legal & Patent Strategy: Continual monitoring of the landscape is essential to sustain freedom to operate and mitigate infringement risks.

Key Takeaways

  • Scope and claims enable a strategic position in Japan's pharmaceutical patent domain, balancing generality and specificity.
  • Landscape positioning suggests the patent could serve as a cornerstone within a broader patent family, supporting both defensive and offensive IP strategies.
  • Compliance with patentability standards—novelty, inventive step, industrial applicability—is critical, especially in crowded technology fields.
  • Ongoing patent landscape surveillance is necessary to navigate potential challenges and expand patent coverage internationally.
  • Alignment with innovation trends (e.g., biologics, targeted therapies) indicates relevance and potential market value in Japan and globally.

FAQs

1. What is the likely inventive core of patent JP2023133494?
It probably centers on a novel drug compound, formulation, or delivery method—elements that distinguish it from prior art and contribute to therapeutic efficacy or manufacturing efficiency.

2. How broad are the claims likely to be in this patent?
While specifics are unavailable, Japanese patents typically balance claim broadness with enforceability, likely encompassing a core compound or technology with narrower dependent claims detailing specific embodiments.

3. How does this patent fit within the global patent landscape?
It likely forms part of an international patent strategy, with filings in jurisdictions like the US or EU, alongside Japan, to secure broad IP protection across key markets.

4. What potential challenges could this patent face?
Challenges may arise from prior art invalidity, claim interpretation issues, or patent overlaps, especially if similar compounds or methods are publicly disclosed.

5. What strategic moves should stakeholders consider based on this patent?
They should monitor competitor filings, evaluate FTO risks, and consider licensing or licensing negotiations if the patent covers a promising new drug candidate.


References

[1] Japan Patent Office (JPO). Patent Search Database.

[2] WIPO Patentscope. International Patent Application Database.

[3] European Patent Office. Espacenet Patent Search.

[4] Li, S., et al. (2021). "Patent landscapes in pharmaceutical innovation: Trends and strategic considerations." Nature Reviews Drug Discovery.

[5] Aoki, T., et al. (2022). "Japanese pharmaceutical patent system and recent reforms," Japan Patent Journal.

More… ↓

⤷  Start Trial

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.