Monte Sereno, CA, United States of America

Craig N Fukushima

This inventor holds 15 USPTO granted patents, primarily in Data Storage Technologies. Top assignees: International Business Machines Corporation, Hitachi Global Storage Technologies Netherlands B.v., Hitachi Global Storage Technologies Amsterdam B.v.. Active years: 2000-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Craig N Fukushima. Retrieved from https://idiyas.com/inventor/craig-n-fukushima

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

Calculating rank

% Patents Active = 33.3

Average Co-Inventor Count = 1.5

ph-index = 6

Forward Citations = 120(Granted Patents)


Company Filing History:


Years Active: 2000-2013

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Areas of Expertise:
Servo Write
Error Correction
Data Recovery
Helium Environment
Disk Drive Calibration
Position Error Signal
Transducer Characteristics
Hard Disk Drives
15 patents (USPTO):Explore Patents

Title: The Innovations of Craig N Fukushima

Introduction

Craig N Fukushima is a notable inventor based in Monte Sereno, California. He has made significant contributions to the field of disk storage systems, holding a total of 15 patents. His work focuses on enhancing the accuracy and efficiency of head position control in magnetic storage mediums.

Latest Patents

One of his latest patents is titled "Seamless and untrimmed primary servo burst with multiple secondary servo bursts." This invention involves a disk storage system that utilizes servo data for precise head position control. The servo data is designed to be seamless and untrimmed, consisting of a primary servo burst set, which defines the desired track pitch. Additionally, multiple secondary servo burst sets are written at the desired track pitch but are radially offset from the primary burst set. This innovative approach allows for improved linear position sensitivity information to the head position control logic. Another significant patent is "Read write offset error correction using geometric reference in self servo write process." This invention introduces a self servo write offset error correction mechanism that enhances the self servo write process in hard disk drives.

Career Highlights

Throughout his career, Craig has worked with prominent companies such as IBM and Hitachi Global Storage Technologies. His experience in these organizations has contributed to his expertise in disk storage technology and innovation.

Collaborations

Craig has collaborated with notable individuals in the field, including Jeff J Dobbek and Gregory Michael Frees. These collaborations have likely fostered advancements in technology and innovation.

Conclusion

Craig N Fukushima's contributions to disk storage technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements in the field of data storage.

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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