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For the Inventor, By the Inventor

Himeji, Japan

Tokumasa Ishida

This inventor holds 15 USPTO granted patents and 1 published patent application and 7 EPO patents, primarily in Hydroxyalkyl Acrylate. Top assignee: Nippon Shokubai Co., Ltd.. Active years: 2002-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tokumasa Ishida. Retrieved from https://idiyas.com/inventor/tokumasa-ishida

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

Calculating rank
USPTO Granted Patents = 15 

% Patents Active = 73.3

 

Average Co-Inventor Count = 3.3

ph-index = 2

Forward Citations = 14(Granted Patents)


Location History:

  • Himeji, JP (2002 - 2012)
  • Hyogo, JP (2018)

Company Filing History:

goldMedal15 out of 1,335 
 
Nippon Shokubai Co., Ltd.
 patents

Years Active: 2002-2018

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Areas of Expertise:
Hydroxyalkyl Acrylate
Polymerization Inhibition
Production Process
Heterogeneous Catalyst
Resin Catalyst
Acrylic Ester
Addition Reaction
Stabilization Techniques
Alkylene Oxide
Methacrylate
15 patents (USPTO):Explore Patents
1. 10023522 - Hydroxyalkyl acrylate and method for producing same (2018-07-17),
2. 8203018 - Processes for producing hydroxyalkyl (meth) acrylate (2012-06-19),
3. 7241915 - Process for inhibition of polymerization of (meth)acrylate ester (2007-07-10),
4. 7214817 - Hydroxyalkyl (meth)acrylate and its production process (2007-05-08),
5. 7045651 - Production process for hydroxyalkyl (meth) acrylate (2006-05-16),
6. 6984751 - Production process for hydroxyalkyl (meth) acrylate (2006-01-10),
7. 6858761 - Process for preserving resin catalyst for addition reaction of alkylene oxide and utilization of this process (2005-02-22),
8. 6706208 - Stabilized hydroxyalkyl (meth)acrylate (2004-03-16),
9. 6610879 - Reaction method by using heterogeneous catalyst and reaction apparatus therefor (2003-08-26),
10. 6552218 - Process for producing hydroxyalkyl (meth)acrylate (2003-04-22),
11. 6534625 - Process for producing hydroxyalkyl (meth)acrylate (2003-03-18),
12. 6465682 - Production process for hydroxyalkyl ester (2002-10-15),
13. 6465681 - Production process for hydroxyalkyl (meth)acrylate (2002-10-15),
14. 6458988 - Production process for hydroxyalkyl(meth)acrylate (2002-10-01),
15. 6414182 - Production process for hydroxyalkyl ester (2002-07-02),

Title: Tokumasa Ishida: Innovator in Hydroxyalkyl Acrylate Production

Introduction

Tokumasa Ishida is a prominent inventor based in Himeji, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of hydroxyalkyl acrylates. With a total of 15 patents to his name, Ishida's work has had a considerable impact on the industry.

Latest Patents

Ishida's latest patents include innovative methods for producing hydroxyalkyl acrylates. One notable patent describes a hydroxyalkyl acrylate characterized by a content amount of an ester generated from acrylic acid dimer and an alkylene oxide that is not more than 0.10 mass percent. Another patent outlines processes for producing hydroxyalkyl (meth) acrylates, which involve reacting (meth)acrylic acid with an alkylene oxide in the presence of a catalyst. These processes are designed to optimize the reaction conditions and improve the efficiency of production.

Career Highlights

Tokumasa Ishida is currently employed at Nippon Shokubai Co., Ltd., where he continues to advance his research and development efforts. His work has been instrumental in enhancing the production techniques of hydroxyalkyl acrylates, contributing to the company's reputation as a leader in the chemical industry.

Collaborations

Ishida has collaborated with notable colleagues, including Yasuhiro Shingai and Yukihiro Yoneda. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Tokumasa Ishida's contributions to the field of hydroxyalkyl acrylate production exemplify his dedication to innovation and excellence. His patents and collaborative efforts continue to shape the future of chemical engineering.

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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