Toyota, Japan

Kazuaki Haga

This inventor holds 19 USPTO granted patents and 9 published patent applications and 5 EPO patents, primarily in Rare Earth Magnets. Top assignees: Toyota Jidosha Kabushiki Kaisha, Tohoku University. Active years: 2015-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuaki Haga. Retrieved from https://idiyas.com/inventor/kazuaki-haga

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

USPTO Granted Patents = 19 

% Patents Active = 73.7

 

Average Co-Inventor Count = 4.3

ph-index = 4

Forward Citations = 281(Granted Patents)


Company Filing History:


Years Active: 2015-2025

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Areas of Expertise:
Rare Earth Magnet
Axial Gap Motor
Curved Rotor
Stator Cores
Soft Magnetic Member
Rotating Electrical Machine
Interior Permanent-Magnet Motor
Magnetic Component
Amorphous Material
Nanocrystalline Material
Manufacturing Method
Electrical Machine Design
19 patents (USPTO):Explore Patents

Title: Kazuaki Haga: Innovator in Motor Technology

Introduction: Kazuaki Haga, an accomplished inventor based in Toyota, Japan, holds a remarkable portfolio of 18 patents. His pioneering work primarily focuses on advancements in motor technology, particularly in the design and functionality of axial gap motors.

Latest Patents: Among his latest innovations, Haga developed the axial gap motor with curved rotor and stator cores. This revolutionary design features a rotor comprising multiple rotor cores fixed in a circumferential manner, alongside a stator equipped with a plurality of stator cores. The interaction between the end faces of each rotor core and their corresponding stator core plays a crucial role in the efficiency of the motor. Another notable patent involves a motor configuration that includes a rotor attached to a rotary shaft and a stator surrounding the rotor. This motor design incorporates multiple rotor and stator sets stacked along the axis of the rotary shaft, further enhancing performance.

Career Highlights: Kazuaki Haga's career includes significant tenures at prestigious organizations such as Toyota Jidosha Kabushiki Kaisha and Tohoku University. His contributions in these roles have advanced the field of motor technology, underscoring his commitment to innovation and research.

Collaborations: Haga has collaborated with esteemed colleagues, including Noritsugu Sakuma and Kensuke Komori. Their teamwork has fostered new ideas and developments, augmenting the impact of Haga's inventions on the industry.

Conclusion: Kazuaki Haga stands out as a leading innovator in the field of motor technology. With numerous patents to his name, his work continues to influence advancements within the industry, setting a benchmark for future inventions. His collaboration with fellow researchers and engineers further amplifies the potential for groundbreaking innovations in the realm of motor design.

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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