Hitachinaka, Japan

Masanori Tsuchiya

This inventor holds 5 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1999-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanori Tsuchiya. Retrieved from https://idiyas.com/inventor/masanori-tsuchiya

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


% Patents Active = 60.0

Average Co-Inventor Count = 4.7

ph-index = 4

Forward Citations = 29(Granted Patents)


Company Filing History:


Years Active: 1999-2008

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5 patents (USPTO):Explore Patents

Title: A Spotlight on Inventor Masanori Tsuchiya

Introduction: Masanori Tsuchiya is a prominent inventor based in Hitachinaka, Japan, recognized for his innovative contributions to electric power generation systems in vehicles. With a total of five patents to his name, Tsuchiya's work enhances vehicle efficiency and sustainability.

Latest Patents: Among his latest patents is a pioneering driving/electric-power generating system for vehicles. This invention features an alternating current (AC) generator that includes a rotor and a stator equipped with a three-phase winding. The design incorporates a three-phase inverter connected to the winding, which consists of at least two independent three-phase windings. Additionally, the switching elements for each phase of the inverter are arranged in parallel, allowing for improved energy management.

Career Highlights: Masanori Tsuchiya is employed at Hitachi, Ltd., where he applies his engineering expertise to develop cutting-edge technologies aimed at revolutionizing the automotive and energy sectors. His continuous innovations reflect his commitment to advancing sustainable energy solutions.

Collaborations: Throughout his career, Tsuchiya has worked alongside esteemed colleagues Keiichi Mashino and Shinji Shirakawa. These collaborative efforts contribute to the ongoing evolution of efficient power generation methods in vehicles.

Conclusion: Masanori Tsuchiya stands out as a key figure in the field of innovative vehicle power systems. His recent patents not only demonstrate his technical prowess but also signify a significant step toward more efficient and environmentally friendly transportation. His work continues to inspire future innovations in the automotive 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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