Osaka, Japan

Hiromitsu Shimizu

This inventor holds 22 USPTO granted patents, plus 3 CIPO patents and 3 EPO patents. Top assignees: Sakai Chemical Industry Co., Ltd., Hirose Manufacturing Co., Ltd., Cosmo Oil Co., Ltd.. Active years: 1987-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromitsu Shimizu. Retrieved from https://idiyas.com/inventor/hiromitsu-shimizu

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


% Patents Active = 90.9



Average Co-Inventor Count = 2.4

ph-index = 8

Forward Citations = 232(Granted Patents)


Location History:

  • Sakai, JP (1990 - 2015)
  • Osaka, JP (1987 - 2018)

Company Filing History:


Years Active: 1987-2018

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22 patents (USPTO):Explore Patents

Title: **Hiromitsu Shimizu: Innovator in Polycondensation Catalysts**

Introduction

Hiromitsu Shimizu is an accomplished inventor based in Osaka, Japan, known for his significant contributions to the field of chemical engineering and polyester production. With a remarkable portfolio of 22 patents, he has established himself as a leading figure in developing innovative polycondensation catalysts.

Latest Patents

Among his latest inventions is a polycondensation catalyst designed for producing polyester through an esterification or transesterification reaction. This catalyst comprises particles of a solid base, specifically hydrotalcite, featuring a coat layer of titanic acid and/or an inner coat layer of oxides of silicon, aluminum, and zirconium. This inventive approach allows for enhanced efficiency in polyester production, addressing vital aspects of material chemistry.

Career Highlights

Throughout his career, Shimizu has held positions in esteemed companies renowned for their contributions to chemical manufacturing. He has worked with Sakai Chemical Industry Co., Ltd. and Hirose Manufacturing Co., Ltd., where he applied his expertise to advance polyester production techniques, paving the way for future innovations in the industry.

Collaborations

Hiromitsu Shimizu has collaborated with notable colleagues such as Tadao Nakatsuji and Toshikatsu Umaba. Together, they have shared knowledge and contributed to advancements in chemical processes and materials science, emphasizing the importance of teamwork in achieving groundbreaking inventions.

Conclusion

Hiromitsu Shimizu's work in the development of polycondensation catalysts showcases the blend of innovation and practical application in the chemical industry. His 22 patents reflect a deep commitment to enhancing polyester production methods, making a lasting impact on the field. As he continues his journey as an inventor, Shimizu remains a significant figure in fostering advancements within the scientific community.

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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