Wako, Japan

Kiyoshi Handa

This inventor holds 31 USPTO granted patents and 1 published patent application and 2 EPO patents, primarily in Hydrogen Fuel Technology. Top assignees: Honda Motor Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha. Active years: 2001-2026.

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

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

USPTO Granted Patents = 31 

% Patents Active = 67.7

 

Average Co-Inventor Count = 1.1

ph-index = 8

Forward Citations = 217(Granted Patents)


Location History:

  • Rancho Palos Verdes, CA (US) (2008 - 2012)
  • Tochigi, JP (2011 - 2012)
  • Takanezawa-cho, JP (2012 - 2014)
  • Utsunomiya, JP (2012 - 2020)
  • Wako, JP (2001 - 2022)
  • Saitama, JP (2004 - 2024)

Company Filing History:


Years Active: 2001-2026

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Areas of Expertise:
Hydrogen Filling Device
Fuel Cell System
Pressure Tank
Gas Filling Method
High-Pressure Tank
Gas Cooling Methods
Induction Warming System
Gas Absorbent
Fuel Filling System
Centrifugal Separator
Automotive Vehicle Structure
Heat Exchange
31 patents (USPTO):Explore Patents

Title: Kiyoshi Handa - Innovating Gas Filling Technologies

Introduction

Kiyoshi Handa, an esteemed inventor based in Wako, Japan, has made significant contributions to the field of gas filling technologies. With an impressive portfolio of 27 patents, Handa's innovative approaches have set new standards in the industry, particularly in relation to gas measurement and filling processes.

Latest Patents

Among his notable inventions, Handa has developed advanced gas filling methods that enhance accuracy in measuring gas volumes. His first patent focuses on a gas filling method that includes a meticulous heat mass calculation step, enabling efficient handling of temporary pressure loss in piping systems. This innovative process utilizes the heat capacity of piping alongside temperature sensor data, ensuring optimal gas filling conditions.

Another groundbreaking patent pertains to a hydrogen filling system. This invention encompasses a hydrogen station with a pressure accumulator for compressed hydrogen gas, directly linked to a hydrogen vehicle's tank through a connection tube system. Utilizing flow rate and pressure sensors, this gas filling method estimates the tank volume with remarkable precision, even for smaller tanks.

Career Highlights

Kiyoshi Handa’s career includes significant tenures at renowned automotive companies such as Honda Motor Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His work at these institutions has been instrumental in developing innovative solutions that elevate gas management technologies in the automotive sector.

Collaborations

Throughout his career, Handa has collaborated with remarkable colleagues, including Norio Komura and Yutaka Hiki. Their combined expertise has fostered a culture of innovation, propelling advancements in gas technologies and enhancing product development strategies.

Conclusion

Kiyoshi Handa's contributions to the field of gas filling methods underscore his role as a leading inventor in the industry. Through his innovative patents and collaborative efforts, he continues to reshape the landscape of gas technologies, leaving a lasting impact on the automotive industry and beyond.

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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