Yamanashi, Japan

Hirokazu Hashikawa

This inventor holds 1 USPTO granted patent. Top assignees: Pioneer Electronic Corporation, Pioneer Video Corporation. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirokazu Hashikawa. Retrieved from https://idiyas.com/inventor/hirokazu-hashikawa-2yz9awi1

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 33(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: Hirokazu Hashikawa: Innovator in Optical Disk Technology

Introduction

Hirokazu Hashikawa is a notable inventor based in Yamanashi, Japan. He has made significant contributions to the field of optical disk technology, particularly through his innovative patent.

Latest Patents

Hirokazu Hashikawa holds a patent for an optical disk having narrow and wide guide grooves. This invention improves the design of optical disks by regulating the width of the grooves and the adjacent land portion based on the type of information recorded. This advancement enhances the efficiency and functionality of optical disks.

Career Highlights

Throughout his career, Hashikawa has worked with prominent companies in the electronics industry, including Pioneer Electronic Corporation and Pioneer Video Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical technology.

Collaborations

Hirokazu Hashikawa has collaborated with talented individuals such as Tsuyoshi Hayashi and Satoru Fukuoka. These partnerships have contributed to the advancement of his projects and the overall development of optical disk technology.

Conclusion

Hirokazu Hashikawa's contributions to optical disk technology through his patent and collaborations highlight his role as an influential inventor in the field. His work continues to impact the industry positively.

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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