Sagamihara, Japan

Hisashi Katada

This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignees: Hitachi, Ltd., Hitachi Software Engineering Company, Ltd.. Active years: 1990-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Katada. Retrieved from https://idiyas.com/inventor/hisashi-katada

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 5

Forward Citations = 213(Granted Patents)


Location History:

  • Yamanashi-ken, JP (1996)
  • Sagamihara, JP (1990 - 1997)

Company Filing History:


Years Active: 1990-1997

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5 patents (USPTO):Explore Patents

Title: Hisashi Katada: A Pioneer in Multiprocessing Innovations

Introduction

Hisashi Katada is a renowned inventor based in Sagamihara, Japan, known for his significant contributions to the field of computer systems and multiprocessor technology. With a total of five patents to his name, Katada's innovative work is at the forefront of advancements in file sharing methods and data transfer controls.

Latest Patents

Among his notable inventions is a "File Sharing Method and System for Multiprocessor System." This patent describes a sophisticated auxiliary storage unit shared by multiple processors employing virtual storage management. The system utilizes an auxiliary page table to manage file addresses effectively across a multiprocessor environment. When a file map request is issued, the system ensures that files are efficiently transferred between auxiliary and main storage, maintaining data integrity and performance.

His other recent invention, "Data Transfer Control of Virtual Storage Supported by Three-Level," introduces a novel storage control method. It addresses the challenges in accessing external storages with differing speeds, ensuring that data is efficiently managed to optimize processing time. By continuously checking the availability of free space and managing the transfer of storage contents, Katada's innovation enhances the overall performance of computer systems.

Career Highlights

Throughout his career, Hisashi Katada has been affiliated with prominent companies, notably Hitachi, Ltd. and Hitachi Software Engineering Company, Ltd. His work in these organizations has allowed him to push the boundaries of technology and develop solutions that address critical issues in multiprocessor systems and data management.

Collaborations

Katada has collaborated with esteemed colleagues in the field, including Toshiaki Arai and Yoshitaka Ohfusa. Their joint efforts have significantly contributed to the advancements in computer technology, fostering a collaborative environment that promotes innovative solutions.

Conclusion

Hisashi Katada's work as an inventor has had a profound impact on the landscape of computer engineering. His latest patents showcase his commitment to enhancing multiprocessor systems and data management technologies. As innovations continue to evolve, Katada's contributions will undoubtedly be remembered as milestones in the pursuit of efficient computational solutions.

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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