Yokohama, Japan

Hiroyuki Tajima

This inventor holds 5 USPTO granted patents and 3 EPO patents. Top assignees: Mitsubishi Chemical Corporation, Mitsubishi Engineering-Plastics Corporation. Active years: 2009-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Tajima. Retrieved from https://idiyas.com/inventor/hiroyuki-tajima-7i9mxzwe

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 = 1.9

ph-index = 2

Forward Citations = 22(Granted Patents)


Location History:

  • Yokohama, JP (2009 - 2011)
  • Hiratsuka, JP (2017)

Company Filing History:


Years Active: 2009-2025

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5 patents (USPTO):Explore Patents

Title: Hiroyuki Tajima: Innovator in Flame Retardant Materials

Introduction

Hiroyuki Tajima is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of materials science, particularly in the development of flame retardant polycarbonate resin compositions. With a total of 5 patents to his name, Tajima's work has had a notable impact on various industries.

Latest Patents

Tajima's latest patents include a method for producing flame retardant polycarbonate resin composition pellets. This innovative method utilizes a twin screw extruder to create a polycarbonate resin composition pellet that contains a specific blend of components, including a phosphate ester flame retardant. Another significant patent involves a cover for millimeter-wave radar, which is designed to transmit and receive millimeter waves in the frequency range of 75 to 81 GHz. This cover is made from a thermoplastic resin composition that meets stringent dielectric properties.

Career Highlights

Throughout his career, Hiroyuki Tajima has worked with leading companies in the industry, including Mitsubishi Chemical Corporation and Mitsubishi Engineering-Plastics Corporation. His experience in these organizations has allowed him to refine his expertise in polymer science and engineering.

Collaborations

Tajima has collaborated with notable colleagues such as Yuuta Kumano and Morio Tsunoda. These partnerships have contributed to the advancement of his research and the successful development of innovative materials.

Conclusion

Hiroyuki Tajima's contributions to the field of flame retardant materials and his innovative patents highlight his role as a key inventor in the industry. His work continues to influence advancements in material science and 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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