Saitama, Japan

Etsumi Handa

This inventor holds 2 USPTO granted patents. Top assignees: Honda Giken Kabushiki Kaisha, Honda Giken Kogyo Kabushiki Kaisha. Active years: 1990-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Etsumi Handa. Retrieved from https://idiyas.com/inventor/etsumi-handa-tifqden9

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 = 4.0

ph-index = 2

Forward Citations = 87(Granted Patents)


Company Filing History:


Years Active: 1990-1991

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2 patents (USPTO):Explore Patents

Title: The Innovative Mind of Etsumi Handa: Insights into His Patents and Career

Introduction

Etsumi Handa, an accomplished inventor based in Saitama, Japan, has made significant contributions to the automotive industry. With two patents to his name, he has developed innovative technologies that enhance vehicle performance and user experience. His work reflects a deep understanding of engineering principles and a commitment to advancing automotive technology.

Latest Patents

Etsumi Handa has been credited with two notable patents:

1. **Steering Damper Device**: This invention introduces a steering damper device featuring a cylinder assembly with multiple fluid chambers to create a controlled fluid circuit. The system includes a control valve assembly linked to the steering shaft, enabling it to detect the steering force applied. A flow rate control unit regulates fluid flow in one direction, optimizing performance in hydraulically operated power steering apparatuses. The design also incorporates an oil pump and a reservoir tank, showcasing Handa's expertise in enhancing steering efficiency by generating assistive steering force.

2. **Method for Controlling Stepless Automatic Transmission and Apparatus**: In this patent, Handa outlines a method and apparatus for the automatic control of a vehicle's transmission ratio, responding dynamically to changes in throttle aperture and driving conditions. The system employs a throttle sensor to detect variations in the throttle aperture's timing, facilitating precise adjustments to the objective engine speed and transmission ratio. This innovative approach contributes significantly to the smooth operation of stepless automatic transmissions, providing a more responsive driving experience.

Career Highlights

Throughout his career, Etsumi Handa has been associated with leading automotive companies, notably Honda Giken Kabushiki Kaisha and Honda Giken Kogyo Kabushiki Kaisha. His work at these organizations has allowed him to apply his innovative ideas in real-world applications, contributing to Honda's reputation for quality and reliability in the automotive sector.

Collaborations

Etsumi Handa has collaborated with notable colleagues, including Kiyotaka Hayashi and Yorihisa Yamamoto. These partnerships have facilitated the exchange of ideas and fostered a collaborative environment, further enhancing the development of innovative automotive technologies.

Conclusion

Etsumi Handa exemplifies the spirit of innovation within the automotive industry. His patents not only demonstrate his technical expertise but also his commitment to improving vehicle performance and user experience. As the automotive landscape continues to evolve, Handa's contributions will likely pave the way for future advancements in steering and transmission technologies.

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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