Saitama, Japan

Hiroyasu Yamada

This inventor holds 1 USPTO granted patent. Top assignee: Pioneer Precision Machinery Corp.. Active years: 1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyasu Yamada. Retrieved from https://idiyas.com/inventor/hiroyasu-yamada-lr51mi3h

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 = 3.0

ph-index = 1

Forward Citations = 8(Granted Patents)


Company Filing History:


Years Active: 1999

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1 patent (USPTO):Explore Patents

Title: **Hiroyasu Yamada: Innovator in Bicycle Electricity Generation**

Introduction: Hiroyasu Yamada is a distinguished inventor based in Saitama-ken, Japan, recognized for his contributions to the field of bicycle technology. With a focus on improving sustainable energy solutions, Yamada has pioneered an innovative approach to harnessing electricity through bicycle movements.

Latest Patents: Yamada holds a patent for his invention titled "Bicycle Electricity Generator and a Method of Attaching the Electricity." This invention features an annular stator and rotor configuration, both mounted coaxially on a bicycle wheel axle. The design allows the stator to be affixed either to the wheel axle or the fork, while the rotor connects to the bicycle wheel hub. This unique arrangement ensures the rotor’s rotation coincides with that of the wheel, enabling efficient electricity generation during pedaling.

Career Highlights: Yamada is affiliated with Pioneer Precision Machinery Corporation, where he applies his expertise in mechanical engineering and inventive design. His innovative spirit and technical skills have made him an asset within the company, providing advancements that align with modern energy needs.

Collaborations: Throughout his career, Yamada has collaborated with notable colleagues, including Kenichi Ohkura and Hiroshi Takemoto. These partnerships have fostered a creative environment, leading to enhanced solutions and further developments in bicycle technology.

Conclusion: Hiroyasu Yamada embodies the spirit of innovation within the transportation sector. With his patented bicycle electricity generator, he has made significant strides towards integrating sustainable energy solutions into everyday transportation. His work serves as an inspiration to future inventors aspiring to make impactful contributions to society.

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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