Tokyo, Japan

Haruhiko Fujita

This inventor holds 5 USPTO granted patents and 1 EPO patent. Top assignees: Hitachi, Ltd., Zeon Corporation. Active years: 2003-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haruhiko Fujita. Retrieved from https://idiyas.com/inventor/haruhiko-fujita

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


% Patents Active = 40.0


Average Co-Inventor Count = 4.8

ph-index = 4

Forward Citations = 59(Granted Patents)


Location History:

  • Kawasaki, JP (2003)
  • Tokyo, JP (2010 - 2013)

Company Filing History:


Years Active: 2003-2013

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5 patents (USPTO):Explore Patents

Title: Haruhiko Fujita: Innovator in Nitrile Copolymer Technologies

Introduction

Haruhiko Fujita is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of nitrile copolymer rubber compositions. With a total of 5 patents to his name, Fujita's work has had a substantial impact on various industrial applications.

Latest Patents

Fujita's latest patents include innovative technologies such as a nitrile copolymer rubber composition and a nitrile copolymer latex composition. The nitrile copolymer rubber composition is obtained by coagulation of a nitrile copolymer latex composition. This composition comprises a latex of a nitrile copolymer rubber (A) that contains 55 to 80 wt % of α,β-ethylenically unsaturated nitrile monomer units and cationic monomer units. The invention also involves an inorganic filler (B), preferably clay, which enhances the properties of the rubber. This composition results in a nitrile copolymer rubber cross-linked product that exhibits extremely low gasoline permeability and superior sour gasoline resistance. Additionally, he has developed a motor control apparatus, which includes a motor, housing member, control system board, and power system substrate, designed to improve the efficiency and functionality of motor-driven systems.

Career Highlights

Fujita has worked with notable companies such as Hitachi, Ltd. and Zeon Corporation. His experience in these organizations has allowed him to refine his expertise in materials science and engineering. His contributions have been instrumental in advancing technologies related to rubber compositions and motor control systems.

Collaborations

Fujita has collaborated with esteemed colleagues, including Kohtaro Shiino and Makoto Kimura. These partnerships have fostered innovation and have led to the successful development of various technologies in his field.

Conclusion

Haruhiko Fujita's work in nitrile copolymer technologies showcases his dedication to innovation and excellence. His patents reflect a commitment to advancing materials science, making significant contributions to industrial applications. His career continues to inspire future inventors and researchers in the field.

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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