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For the Inventor, By the Inventor

Yokohama, Japan

Izumi Amemiya

This inventor holds 8 USPTO granted patents, plus 2 CIPO patents. Top assignee: Fujitsu Corporation. Active years: 1991-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Izumi Amemiya. Retrieved from https://idiyas.com/inventor/izumi-amemiya

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

USPTO Granted Patents = 8

% Patents Active = 100.0


Average Co-Inventor Count = 5.4

ph-index = 7

Forward Citations = 159(Granted Patents)


Location History:

  • Yokohama, JP (1991 - 1996)
  • Kawasaki, JP (1994 - 1996)

Company Filing History:

goldMedal8 out of 39,374 
 
Fujitsu Corporation
 patents

Years Active: 1991-1996

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8 patents (USPTO):Explore Patents
1. 5510745 - High-speed electronic circuit having a cascode configuration (1996-04-23),
2. 5506542 - Filter circuit and filter integrated circuit (1996-04-09),
3. 5293087 - Filter circuit and filter integrated circuit (1994-03-08),
4. 5206986 - Method of producing an electronic circuit package (1993-05-04),
5. 5150280 - Electronic circuit package (1992-09-22),
6. 5113151 - Equalizing and amplifying circuit in an optical signal receiving (1992-05-12),
7. 5074631 - Optical modulator (1991-12-24),
8. 5066877 - Data delay circuit and clock extraction circuit using the same (1991-11-19),

Title: The Innovative Contributions of Izumi Amemiya

Introduction

Izumi Amemiya is a prominent inventor based in Yokohama, Japan. She has made significant contributions to the field of electronic circuits, holding a total of 8 patents. Her work focuses on high-speed electronic circuits and filter circuits, showcasing her expertise in advanced technology.

Latest Patents

One of her latest patents is titled "High-speed electronic circuit having a cascode configuration." This invention features a cascode circuit configuration that includes a bias current source to compensate for the base-emitter voltage of a load transistor. This innovation aims to eliminate the adverse effects of charging and discharging at stray capacitors, making it applicable to various circuits, including level shift circuits and frequency band control circuits.

Another notable patent is the "Filter circuit and filter integrated circuit." This invention is designed for high-frequency applications and includes a low-pass filter that operates effectively while suppressing the influence of characteristic parameters over the filter's performance. These patents reflect her commitment to enhancing electronic circuit design.

Career Highlights

Izumi Amemiya has built a successful career at Fujitsu Corporation, where she has been instrumental in developing cutting-edge technologies. Her work has not only advanced the field of electronics but has also contributed to the company's reputation as a leader in innovation.

Collaborations

Throughout her career, Amemiya has collaborated with talented individuals such as Hiroshi Hamano and Takuji Yamamoto. These partnerships have fostered a creative environment that has led to groundbreaking advancements in electronic circuit technology.

Conclusion

Izumi Amemiya's contributions to the field of electronic circuits are noteworthy and impactful. Her innovative patents and collaborative efforts at Fujitsu Corporation highlight her role as a leading inventor in the industry. Her work continues to influence the development of high-speed electronic 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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