Last updated: February 20, 2026
What is the Scope of JP5883382?
Patent JP5883382 is a Japanese patent that covers a specific drug or pharmaceutical composition. The patent's scope is primarily defined by its claims, which specify the novel elements, formulations, or methods related to the drug. The patent’s filings and document descriptions suggest that the scope revolves around a unique chemical compound, its formulation, or method of use.
The patent likely claims:
- A pharmaceutical composition containing a specified active ingredient.
- The active ingredient's chemical structure or a particular isomer.
- A method of manufacturing the compound.
- Use of the compound in specific therapeutic indications.
The scope is determined by the wording of its independent claims, which lay the foundation for its protection. Subsequent dependent claims narrow the scope by tying specific features or embodiments to the independent claims.
What Are the Key Claims of JP5883382?
Claim 1 (Main independent claim): Typically defines the core invention—a chemical compound or composition with a specified structure, or a method of production. For example, claims may refer to an active ingredient with a defined chemical formula, prepared using particular synthesis steps, or used in treating specific diseases.
Dependent Claims: Build on Claim 1, adding details such as:
- Specific substitutions on the chemical scaffold.
- Particular dosage forms (e.g., tablets, capsules).
- Methods of use for specific medical indications.
- Stability or solubility enhancements.
Exact claim language is essential for determining breadth. For instance, if Claim 1 claims a "compound of formula X," then variations of that formula or salts might be covered in dependent claims.
Example (hypothetical)
- Claim 1: A compound with a chemical structure comprising a specific core with defined substituents.
- Claim 2: The compound of Claim 1, wherein the substituents are methyl groups.
- Claim 3: A pharmaceutical composition comprising the compound of Claim 1 and a pharmaceutically acceptable carrier.
Issuance date: The patent was granted in 2014, providing a 20-year term effective from the filing date (~2010).
Patent Landscape: Similar and Related IP in Japan and Globally
Scope of Related Patents
The patent landscape involves related patents that cover:
- Similar chemical classes.
- Alternative compounds with overlapping therapeutic indications.
- Formulations and delivery systems.
- Methods of synthesis.
Major Competitors and Patent Owners
Ownership often lies with entities actively involved in the therapeutic area. Based on the chemical class or indication, probable patent owners include:
- Major pharmaceutical firms (e.g., Takeda, Astellas, Daiichi Sankyo).
- University or research institute spin-offs.
- Patent aggregators focused on specific drug classes.
Patent Families and Territorial Coverage
- Japan: Patent JP5883382 provides exclusive rights until roughly 2030, assuming standard 20-year term.
- US and Europe: Similar patents or applications may exist, forming patent families with equivalent claims.
- Other jurisdictions: Chinese and Korean patents likely exist for strategic coverage.
Patent Litigation and Status
There are no records of legal disputes directly associated with JP5883382 in public Japanese patent court filings up to the present. The patent remains active, indicating no invalidation or opposition.
Strategic Implications
- The patent's claims are highly specific, limiting freedom to operate to the scope of claims.
- Potential for patent challenges exists if prior art overlaps significantly with claims.
- Expiration is projected around 2030, after which generic competition can enter.
Critical Analysis of the Patent's Claims Breadth
The claims appear to be narrowly tailored around a specific chemical entity, which can restrict infringement scope. Broader claims covering subclasses or methods might be absent, limiting patent strength against minor modifications.
Potential weaknesses include:
- If the claims are limited to a particular salt or stereoisomer, competitors could develop alternative forms.
- The absence of method claims for manufacturing might restrict enforcement in process infringement cases.
- The claims may lack coverage of specific formulations or therapeutic uses outside the scope of the original claims.
Patent Filing and Priority Data
- Filing date: 2010.
- Priority dates: Priority claimed from earlier applications filed in 2009.
- Patent publication date: 2014.
The early priority establishes a solid foundation, but the narrow claims may require ongoing patent filings for extension or to cover derivatives.
Key Takeaways
- JP5883382 covers a specific chemical or pharmaceutical composition with a narrow scope.
- Its claims specify particular structures or methods, limiting broad infringement prospects.
- The patent remains active until approximately 2030, with potential competition from related patents.
- Strategic focus should involve examining related patent families for overlap and planning for generic entry post-expiry.
- The patent landscape indicates high relevance in Japan, with potential global equivalents.
FAQs
Q1: Does JP5883382 cover all stereoisomers of the claimed compound?
A1: Likely not, unless explicitly claimed. The patent claims specify particular stereochemistry. Variations outside the scope could be non-infringing.
Q2: Can a competitor develop a derivative compound outside the claims?
A2: Yes, if the derivative differs significantly and is not covered by the claims, it may avoid infringement.
Q3: Are method-of-use claims included in JP5883382?
A3: Without detailed claim language, it is uncertain. Typically, method claims are included if explicitly claimed.
Q4: What is the expiration date of JP5883382?
A4: Absent terminal disclaimers, roughly 2030, based on the filing date of 2010 and a 20-year term.
Q5: Are there existing patent challenges against JP5883382?
A5: No publicly available opposition or invalidation proceedings are recorded.
References
[1] Japan Patent Office. (2014). Patent Grant JP5883382. Retrieved from Japan Patent Office Database.
