Yonezawa, Japan

Kunihiko Shirahata

This inventor holds 9 USPTO granted patents and 3 published patent applications. Top assignees: Tohoku Pioneer Corporation, Pioneer Corporation. Active years: 2003-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kunihiko Shirahata. Retrieved from https://idiyas.com/inventor/kunihiko-shirahata

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

USPTO Granted Patents = 9 

% Patents Active = 33.3

Average Co-Inventor Count = 4.0

ph-index = 2

Forward Citations = 17(Granted Patents)


Location History:

  • Yamagata, JP (2006)
  • Yamagata-ken, JP (2006 - 2010)
  • Yonezawa, JP (2003 - 2019)

Company Filing History:


Years Active: 2003-2019

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9 patents (USPTO):Explore Patents

Title: Kunihiko Shirahata: Innovator in Optical Devices

Introduction

Kunihiko Shirahata is a notable inventor based in Yonezawa, Japan. He has made significant contributions to the field of optical devices, holding a total of 9 patents. His work has been influential in advancing technology in this area.

Latest Patents

One of his latest patents involves an optical device that features a unique joining structure. This structure consists of a first conductive film and a second conductive film that are joined together. The first conductive film is made from a conductive material, while the second conductive film is composed of a metal material. A part of the second conductive film comes into contact with the first conductive film. Additionally, a plurality of concave portions are present on the contact surface of the second conductive film, which enhances its interaction with the first conductive film. The contact surface exhibits a greater surface roughness compared to the non-contact surface of the second conductive film.

Career Highlights

Throughout his career, Kunihiko Shirahata has worked with prominent companies such as Tohoku Pioneer Corporation and Pioneer Corporation. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Some of his notable coworkers include Yuji Saito and Masanobu Akagi. Their collaboration has likely played a role in the development of his inventions and patents.

Conclusion

Kunihiko Shirahata's contributions to the field of optical devices are significant, and his patents reflect his innovative spirit. His work continues to influence advancements in technology, showcasing the importance of inventors in shaping the future.

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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