Yashiro, Japan

Masaaki Hashizume

This inventor holds 2 USPTO granted patents. Top assignees: Fujitsu Corporation, Fujitsu Peripherals Limited. Active years: 1998-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaaki Hashizume. Retrieved from https://idiyas.com/inventor/masaaki-hashizume

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


% Patents Active = 100.0

Average Co-Inventor Count = 8.0

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 1998-2000

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2 patents (USPTO):Explore Patents

Title: Masaaki Hashizume: Innovator in Library Apparatus Technology

Introduction

Masaaki Hashizume is a notable inventor based in Yashiro-machi, Japan. He has made significant contributions to the field of library apparatus technology, holding a total of 2 patents. His innovative designs focus on enhancing the efficiency and functionality of storage media systems.

Latest Patents

Hashizume's latest patents include a "Library apparatus having interconnected cell drum and door locking" and a "Library apparatus." The first patent describes a library apparatus featuring a rotatable cell drum designed to store multiple recording media cartridges. This apparatus includes a door that allows direct operator access to all cells in a selected column without needing a media transport device. Additionally, it incorporates a locking mechanism that ensures the cell drum must be locked before the door can be unlocked. The second patent outlines a library apparatus for storage media, such as optical disks, which includes a rotatable cell drum and a load/unload device for efficient media handling.

Career Highlights

Throughout his career, Hashizume has worked with prominent companies, including Fujitsu Corporation and Fujitsu Peripherals Limited. His experience in these organizations has contributed to his expertise in developing advanced library apparatus technologies.

Collaborations

Hashizume has collaborated with notable coworkers, including Yoshifumi Ohba and Manabu Kobayashi. Their combined efforts have led to innovative advancements in the field of storage media systems.

Conclusion

Masaaki Hashizume's contributions to library apparatus technology demonstrate his commitment to innovation and efficiency. His patents reflect a deep understanding of the needs within the storage media industry, making him a significant figure in this field.

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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