Sendai, Japan

Hiroji Ohigashi

This inventor holds 4 USPTO granted patents and 2 EPO patents. Top assignees: Ideal Star Inc., Daikin Industries, Ltd., Other. Active years: 2015-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroji Ohigashi. Retrieved from https://idiyas.com/inventor/hiroji-ohigashi-dg5yzi5u

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 = 4.2

ph-index = 2

Forward Citations = 30(Granted Patents)


Location History:

  • Miyagi, JP (2020)
  • Sendai, JP (2015 - 2022)

Company Filing History:

goldMedal3 out of 16 
 
Ideal Star Inc.
 patents
silverMedal2 out of 4,497 
 
Daikin Industries, Ltd.
 patents
bronzeMedal1 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 2015-2022

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4 patents (USPTO):Explore Patents

Title: Innovator Hiroji Ohigashi: Pioneering Advances in Piezoelectric Technology

Introduction

Hiroji Ohigashi, a talented inventor based in Sendai, Japan, has made significant contributions in the field of piezoelectric materials. With a total of four patents, his recent innovations focus on enhancing piezoelectricity through advanced copolymerization techniques.

Latest Patents

Ohigashi's latest patents include groundbreaking work on piezoelectric films. His inventions aim to improve the piezoelectric properties of a specific PVT (polyvinylidene fluoride and trifluoroethylene) composition. One key patent outlines a method to produce a piezoelectric film composed of a blend of two copolymers, PVT85/15 and PVT75/25. This novel combination not only enhances piezoelectricity but also offers exceptional heat resistance and deformation tolerance. The films are subjected to heat treatment at temperatures between 140°C and 150°C to crystallize the copolymer effectively, resulting in a product that surpasses previous standards for heat and deformation resistance.

Career Highlights

Throughout his career, Hiroji Ohigashi has worked with renowned companies, including Ideal Star Inc. and Daikin Industries, Ltd. His experience in these technology-driven environments has greatly influenced his innovative approach to materials science and engineering.

Collaborations

Ohigashi has collaborated with esteemed colleagues, including Kenji Omote and Tetsuhiro Kodani. These partnerships have fostered a rich exchange of ideas and have played a crucial role in driving forward his innovative projects.

Conclusion

Hiroji Ohigashi stands out as a prominent figure in the field of piezoelectric technology. With his impressive portfolio of patents and a commitment to enhancing material properties, he continues to push the boundaries of innovation. His work will undoubtedly have lasting implications in various applications, reaffirming the importance of creativity in technological advancements.

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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