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For the Inventor, By the Inventor

Ichihara, Japan

Nobuyuki Oka

This inventor holds 4 USPTO granted patents. Top assignee: Maruzen Petrochemical Company, Limited. Active years: 1999-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuyuki Oka. Retrieved from https://idiyas.com/inventor/nobuyuki-oka-ds47deog

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 3

Forward Citations = 26(Granted Patents)


Location History:

  • Chiba-ken, JP (1999)
  • Ichihara, JP (2001 - 2002)

Company Filing History:

goldMedal4 out of 122 
 
Maruzen Petrochemical Company, Limited
 patents

Years Active: 1999-2002

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4 patents (USPTO):Explore Patents
1. 6462158 - Polymerizable compounds having norbornanelactone structure and polymers (2002-10-08),
2. 6461788 - Polymerizable compounds having cyclohexanelactone structure and polymers (2002-10-08),
3. 6258901 - Process for producing lightly colored p-vinylphenol polymer (2001-07-10),
4. 5959051 - Process for preparing vinylphenol polymers and stabilized compositions (1999-09-28),

Title: Nobuyuki Oka: Innovator in Polymer Chemistry

Introduction

Nobuyuki Oka is a prominent inventor based in Ichihara, Japan. He has made significant contributions to the field of polymer chemistry, holding a total of 4 patents. His work focuses on developing novel polymerizable compounds that have various applications in the industry.

Latest Patents

Oka's latest patents include innovative polymerizable compounds featuring cyclohexanelactone structures and norbornanelactone structures. These advancements are crucial for enhancing the properties and functionalities of polymers used in various applications.

Career Highlights

Nobuyuki Oka is currently employed at Maruzen Petrochemical Company, Limited, where he continues to push the boundaries of polymer science. His expertise and dedication have positioned him as a key figure in the development of new materials.

Collaborations

Oka has collaborated with notable colleagues, including Masao Kaneko and Takuya Miwa. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Nobuyuki Oka's contributions to polymer chemistry and his innovative patents highlight his role as a leading inventor in the field. His work continues to influence the development of advanced materials that are essential for various industries.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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