Katsuta, Japan

Tetsuya Hirashima

This inventor holds 4 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1988-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuya Hirashima. Retrieved from https://idiyas.com/inventor/tetsuya-hirashima-1988h7an

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 = 4

Forward Citations = 108(Granted Patents)


Location History:

  • Yokohama, JP (1988)
  • Ibaraki, JP (1992)
  • Katsuta, JP (1990 - 1993)

Company Filing History:


Years Active: 1988-1993

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4 patents (USPTO):Explore Patents

Title: Tetsuya Hirashima: Innovator in Surface Acoustic Wave Technology

Introduction

Tetsuya Hirashima is a prominent inventor based in Katsuta, Japan. He has made significant contributions to the field of surface acoustic wave technology, holding a total of 4 patents. His work has been instrumental in advancing communication apparatuses through innovative filter designs.

Latest Patents

Hirashima's latest patents include a surface acoustic wave filter device formed on a plurality of substrates. This device is designed for use in communication apparatuses, featuring multiple surface acoustic wave elements with distinct filter characteristics. These characteristics combine to create filters that meet specific requirements. Another notable patent is a surface acoustic wave band-pass filter that employs phase-weighted electro-acoustic transducers. This design improves attenuation for stop frequencies, showcasing Hirashima's commitment to enhancing acoustic wave technology.

Career Highlights

Hirashima is currently employed at Hitachi, Ltd., where he continues to innovate and develop new technologies. His work has garnered attention in the industry, and he is recognized for his expertise in surface acoustic wave devices.

Collaborations

Hirashima has collaborated with notable colleagues, including Toyoji Tabuchi and Mitsutaka Hikita. These partnerships have contributed to the advancement of their shared research interests and have led to the development of cutting-edge technologies.

Conclusion

Tetsuya Hirashima's contributions to surface acoustic wave technology have made a lasting impact on the field. His innovative patents and collaborations reflect his dedication to advancing communication technologies.

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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