Kawasaki, Japan

Chiharu Ohba

This inventor holds 1 USPTO granted patent. Top assignee: Fujitsu Corporation. Active years: 1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chiharu Ohba. Retrieved from https://idiyas.com/inventor/chiharu-ohba

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 = 3.0

ph-index = 1

Forward Citations = 26(Granted Patents)


Company Filing History:


Years Active: 1994

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1 patent (USPTO):Explore Patents

Title: Chiharu Ohba: Innovator in Magnetic Disk Technology

Introduction

Chiharu Ohba is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of magnetic disk technology. His innovative work has led to the development of a unique patent that enhances the accuracy of data head offset detection.

Latest Patents

Chiharu Ohba holds a patent for a "Data head offset detecting circuit in magnetic disk unit." This invention includes a first offset detector that detects an offset β based on servo information on a data surface read by the data head. Additionally, it features a second offset detector that detects an offset γ based on servo information on the servo surface read by the servo head. An offset calculator is also included, which calculates a real offset α by subtracting offset γ from offset β. This circuit allows for accurate detection of an offset for correction of an offtrack, even when the heads are vibrating. He has 1 patent to his name.

Career Highlights

Chiharu Ohba is currently employed at Fujitsu Corporation, where he continues to work on advancements in magnetic disk technology. His expertise and innovative mindset have made him a valuable asset to the company.

Collaborations

Chiharu has collaborated with notable coworkers, including Taturo Sasamoto and Eisaku Takahashi. Their combined efforts contribute to the ongoing development of cutting-edge technologies in their field.

Conclusion

Chiharu Ohba's contributions to magnetic disk technology through his innovative patent demonstrate his commitment to advancing the industry. His work not only enhances the accuracy of data detection but also showcases the importance of collaboration in technological advancements.

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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