Tokyo, Japan

Hiroshi Motohashi

This inventor holds 1 USPTO granted patent. Top assignee: Asahi Kogaku Kogyo Kabushiki Kaisha. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Motohashi. Retrieved from https://idiyas.com/inventor/hiroshi-motohashi

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 = 12.0

ph-index = 1

Forward Citations = 18(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: Hiroshi Motohashi: Innovator in Optical Disk Technology

Introduction

Hiroshi Motohashi is a prominent inventor based in Tokyo, Japan. He is known for his significant contributions to optical disk technology. His innovative work has led to the development of a unique objective driving device for optical disk apparatuses.

Latest Patents

Hiroshi Motohashi holds a patent for an "Objective driving device for an optical disk apparatus." This invention involves an optical disk apparatus that includes an optical pickup with a body carrying a laser and a photodetector. The photodetector responds to light emitted from the laser and reflected by the optical disk, producing tracking error signals. The design allows for reciprocal movement in a tracking direction, stabilizing the driving of the objective and reducing access time. This patent showcases his expertise in enhancing the performance of optical disk systems.

Career Highlights

Motohashi is associated with Asahi Kogaku Kogyo Kabushiki Kaisha, where he has made significant strides in optical technology. His work has not only advanced the field but has also contributed to the efficiency of optical disk apparatuses.

Collaborations

Hiroshi Motohashi has collaborated with notable colleagues, including Hiroshi Kokado and Suguru Takishima. Their combined efforts have fostered innovation and development in their respective fields.

Conclusion

Hiroshi Motohashi's contributions to optical disk technology exemplify the impact of innovative thinking in engineering. His patent and work at Asahi Kogaku Kogyo Kabushiki Kaisha highlight his role as a key figure in advancing optical technology.

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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