Shiojiri, Japan

Masahiro Fujii

USPTO Granted Patents = 54 

Average Co-Inventor Count = 2.9

ph-index = 13

Forward Citations = 539(Granted Patents)

Forward Citations (Not Self Cited) = 508(Oct 12, 2025)


Inventors with similar research interests:


Location History:

  • Shiojirish-Nagano, JP (2006)
  • Suwa, JP (1991 - 2007)
  • Nagano, JP (2001 - 2008)
  • Shiojiri, JP (2000 - 2023)

Company Filing History:


Years Active: 1991-2025

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54 patents (USPTO):Explore Patents

Title: Innovations by Masahiro Fujii: A Glimpse into the World of Resonator Devices

Introduction

Masahiro Fujii, an accomplished inventor based in Shiojiri, Japan, is recognized for his significant contributions to the field of resonator devices. With an impressive portfolio of 52 patents, Fujii's inventions reflect his dedication to advancing technology in electronics and communication.

Latest Patents

Among his latest innovations is a sophisticated resonator device that features a resonator element with mount electrodes on its first surface, and a base with corresponding base electrodes. The design incorporates various components, including metal bumps for bonding, ensuring high performance through materials with advantageous loss tangents. Additionally, Fujii has developed a method for manufacturing resonator devices that integrates a semiconductor substrate with an oscillation circuit and a determination circuit, enhancing the functionality and efficiency of the resonator element.

Career Highlights

Fujii has built a formidable career at Seiko Epson Corporation, where he has played a pivotal role in the development of cutting-edge resonator technologies. His work not only contributes to the corporate innovation landscape but also enhances the quality and reliability of electronic devices globally. Fujii's prolific output of patents underscores his creative engineering approach and commitment to research and innovation.

Collaborations

Throughout his career, Masahiro Fujii has worked alongside talented colleagues including Hiroshi Koeda and Hiroyuki Maruyama. These collaborations have fostered an environment of innovation, leading to groundbreaking advancements in resonator technology, which are critical in various electronic applications today.

Conclusion

Masahiro Fujii's contributions to the field through his patents for resonator devices exemplify the visionary thinking that drives technological innovation. His work at Seiko Epson Corporation, along with strategic collaborations, continues to make a lasting impact in electronics, establishing him as a key player in the industry.

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