Katsuta, Japan

Tatsuya Shigemura

This inventor holds 8 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Video Engineering, Incorporated. Active years: 1984-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuya Shigemura. Retrieved from https://idiyas.com/inventor/tatsuya-shigemura

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 = 4.5

ph-index = 5

Forward Citations = 96(Granted Patents)


Location History:

  • Katsuta, JP (1984 - 1994)
  • Hitachinaka, JP (1999 - 2002)

Company Filing History:


Years Active: 1984-2002

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8 patents (USPTO):Explore Patents

Title: Innovator Spotlight: Tatsuya Shigemura

Introduction: Tatsuya Shigemura, a notable inventor hailing from Katsuta, Japan, has made significant contributions to the field of semiconductor technology. With a robust portfolio of eight patents, Shigemura's innovations are pivotal in advancing the reliability and efficiency of semiconductor devices.

Latest Patents: Among his latest innovations is a groundbreaking semiconductor device designed to prevent fatigue failure of the solder layer beneath a semiconductor chip. This invention addresses issues arising from repetitive cycles of power turn-on and turn-off during operation. The device incorporates a recess in the base underneath the semiconductor chip, effectively mitigating thermal expansion and enhancing durability.

Another notable patent involves a wire bonding method and apparatus that allows for flatly thinner plastic deformation of the wire joint section. This technology enables precise positioning of the deformed wire joint on a target surface, subsequently joining it by applying ultrasonic vibrations. The resulting high-power semiconductor device boasts a long lifespan for wire joints, showcasing Shigemura's commitment to improving semiconductor reliability.

Career Highlights: Throughout his career, Tatsuya Shigemura has collaborated with prestigious companies such as Hitachi, Ltd. and Hitachi Video Engineering, Incorporated. His work in these organizations has positioned him as a leading figure in semiconductor innovation, contributing to advancements that have widespread applications in technology.

Collaborations: Shigemura's journey as an inventor has been enriched by his collaborations with esteemed coworkers, including Kiyoshi Kano and Yoshiyuki Tanaka. These partnerships have fostered a dynamic environment for innovation, allowing Shigemura to push the boundaries of what is possible in semiconductor technology.

Conclusion: Tatsuya Shigemura's contributions to the field of semiconductors are a testament to his innovative spirit and dedication to improving device performance. With his multiple patents and collaboration with industry leaders, Shigemura continues to shape the future of semiconductor technology, making significant strides toward more reliable and efficient devices.

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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