Tokyo, Japan

Yuuichi Hirano


Average Co-Inventor Count = 2.6

ph-index = 12

Forward Citations = 567(Granted Patents)

Forward Citations (Not Self Cited) = 562(Dec 10, 2025)


Inventors with similar research interests:


Company Filing History:


Years Active: 1999-2010

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Areas of Expertise:
Semiconductor Device
Memory Device
Manufacturing Method
SRAM
Capacitance
Heat-Radiation
Trench Isolation
Soft-Error Immunity
TFT
Inductor
SOI Structure
Dynamic Threshold-Voltage MOS
53 patents (USPTO):Explore Patents

Title: Yuuichi Hirano: A Pioneer in Semiconductor Innovations

Introduction

Yuuichi Hirano is a distinguished inventor based in Tokyo, Japan, renowned for his groundbreaking contributions to the field of semiconductor technology. With an impressive portfolio of 53 patents, Hirano has significantly advanced methodologies and designs that enhance semiconductor devices.

Latest Patents

Among his latest patents, Hirano developed a pioneering semiconductor device and method of manufacturing the same. This invention features a silicon nitride film positioned strategically between interlayer insulating films that cover the upper surface of an element on a semiconductor layer. This innovative structure not only suppresses the floating-body effect but also improves isolation performance and breakdown voltage.

Another noteworthy patent is for a semiconductor device, method of manufacturing same, and method of designing same. This invention utilizes a partial oxide film that effectively isolates NMOS and PMOS transistor regions within a silicon-on-insulator (SOI) layer. Through a carefully designed structure, which includes p-type and n-type well regions, Hirano's invention minimizes the floating-substrate effect, thus enhancing device performance.

Career Highlights

Hirano's career has been marked by significant achievements in the semiconductor industry. He has worked with leading companies such as Renesas Technology Corp. and Mitsubishi Electric Corporation, where he has honed his skills and contributed to several key innovations.

Collaborations

Throughout his career, Hirano has collaborated with esteemed colleagues, including Shigenobu Maeda and Takashi Ipposhi. These partnerships have fostered a dynamic exchange of ideas and expertise, further enriching his contributions to the field of semiconductor technology.

Conclusion

Yuuichi Hirano stands out as a pivotal figure in semiconductor innovation. His extensive patent portfolio and influential work in developing advanced semiconductor devices position him as a key contributor to future advancements in this critical field. With ongoing innovations, the impact of his inventions will likely resonate far beyond the confines of conventional semiconductor applications.

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