Nara, Japan

Kazuhira Nakao

This inventor holds 1 USPTO granted patent. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhira Nakao. Retrieved from https://idiyas.com/inventor/kazuhira-nakao

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 = 13(Granted Patents)


Company Filing History:


Years Active: 1987

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1 patent (USPTO):Explore Patents

Title: Kazuhira Nakao: Innovator Behind Optical Rotary Encoders

Introduction: Kazuhira Nakao is a notable inventor based in Nara, Japan, recognized for his contributions to the field of optical rotary encoders. With a strong background in engineering and innovation, he has secured a patent that showcases his technical expertise and problem-solving ability.

Latest Patents: Nakao holds a patent for an Optical Rotary Encoder, which features a sophisticated design involving a slit plate with multiple circumferentially aligned slits of a designated pitch. This innovative encoder includes a light-emitting diode and a light-responsive section, comprising four photodiodes laid out on a single substrate. The unique arrangement of these photodiodes enables precise measurement of the angular position and velocity of a rotating shaft, enhancing performance in various applications.

Career Highlights: Throughout his career, Kazuhira Nakao has worked with Sharp Kabushiki Kaisha Corporation, a prominent entity in the electronics sector. His work has significantly impacted the development of precision measurement technologies, earning him recognition in the patent community.

Collaborations: Nakao has collaborated with esteemed colleagues such as Kiyoshi Ebina and Zempei Tani, contributing to a culture of innovation within his workplace. Their joint efforts have pushed forward advancements in rotary encoding technology.

Conclusion: Kazuhira Nakao's inventive spirit and commitment to engineering excellence have positioned him as a key figure in the realm of optical rotary encoders. His patent not only reflects his personal achievements but also contributes to technological advancements at Sharp Kabushiki Kaisha Corporation, setting a benchmark for future innovations in the industry.

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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