Omuta, Japan

Masaaki Iijima

This inventor holds 1 USPTO granted patent. Top assignee: Mitsui Toatsu Chemicals, Incorporated. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaaki Iijima. Retrieved from https://idiyas.com/inventor/masaaki-iijima-lemba5p3

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 7.0

ph-index = 1

Forward Citations = 8(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Masaaki Iijima: Innovator in Polyphenylene Production

Introduction

Masaaki Iijima is a notable inventor hailing from Omuta, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of advanced materials. His innovative work has led to the development of a unique process that enhances the quality of polyphenylene products.

Latest Patents

Iijima holds a patent for a process titled "Process for the production of methylene-crosslinked polyphenylene." This patent focuses on improving the hue of methylene-crosslinked polyphenylene polyisocyanate, which is continuously produced through a reaction with phosgene in an inert solvent. The process involves the removal of residual phosgene followed by heat treatment in the presence of hydrogen chloride gas. This innovation is crucial for enhancing the quality of polyphenylene materials.

Career Highlights

Masaaki Iijima is associated with Mitsui Toatsu Chemicals, Incorporated, where he has applied his expertise in chemical processes. His work has been instrumental in advancing the company's capabilities in producing high-quality chemical products. Iijima's dedication to innovation has positioned him as a key figure in his field.

Collaborations

Throughout his career, Iijima has collaborated with esteemed colleagues such as Noritoshi Ishida and Zunzi Tashima. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in chemical engineering.

Conclusion

Masaaki Iijima's contributions to the field of polyphenylene production exemplify the impact of innovative thinking in chemical engineering. His patented process not only enhances product quality but also showcases the importance of collaboration in driving advancements in technology.

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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