Akinobu Shirota

This inventor holds 6 USPTO granted patents. Top assignees: Fujitsu Semiconductor Limited, Fujitsu Corporation. Active years: 2007-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akinobu Shirota. Retrieved from https://idiyas.com/inventor/akinobu-shirota

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

USPTO Granted Patents = 6

% Patents Active = 16.7

Average Co-Inventor Count = 2.0

ph-index = 3

Forward Citations = 28(Granted Patents)

Company Filing History:

4 out of 1,674

Fujitsu Semiconductor Limited

Years Active: 2007-2014

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8867293 - Semiconductor memory device changing refresh interval depending on temperature (2014-10-21),

2. 8472275 - Semiconductor memory device changing refresh interval depending on temperature (2013-06-25),

3. 8238188 - Semiconductor memory device changing refresh interval depending on temperature (2012-08-07),

4. 7916568 - Semiconductor memory device changing refresh interval depending on temperature (2011-03-29),

5. 7453754 - Semiconductor memory device changing refresh interval depending on temperature (2008-11-18),

6. 7196956 - Semiconductor memory device changing refresh interval depending on temperature (2007-03-27),

Title: Akinobu Shirota: Innovator in Semiconductor Technology

Introduction

Akinobu Shirota is a prominent inventor based in Date, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 6 patents. His work focuses on enhancing the efficiency and performance of semiconductor memory devices.

Latest Patents

One of Akinobu Shirota's latest patents is a semiconductor memory device that changes the refresh interval depending on temperature. This innovative device includes a memory core circuit with memory cells for storing data. It features a circuit designed to refresh the memory core circuit at a specified refresh interval. Additionally, it incorporates a temperature detecting unit that monitors temperature changes. A control circuit is also included, which shortens the refresh interval immediately upon detecting a predetermined temperature rise and elongates the refresh interval after refreshing each memory cell at least once in response to a temperature drop.

Career Highlights

Throughout his career, Akinobu Shirota has worked with notable companies such as Fujitsu Semiconductor Limited and Fujitsu Corporation. His experience in these organizations has allowed him to develop and refine his expertise in semiconductor technology.

Collaborations

Akinobu Shirota has collaborated with various professionals in the field, including his coworker Kuninori Kawabata. Their joint efforts have contributed to advancements in semiconductor innovations.

Conclusion

Akinobu Shirota's work in semiconductor technology exemplifies his commitment to innovation and efficiency. His patents reflect a deep understanding of the challenges in the industry and a dedication to finding solutions. His contributions continue to influence the field of semiconductor memory 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]