Tokyo, Japan

Hiroaki Urushibata


Average Co-Inventor Count = 6.6

ph-index = 9

Forward Citations = 352(Granted Patents)


Location History:

  • Kawanishi, JP (1986)
  • Amagasaki, JP (1988 - 1991)
  • Chiyoda-ku, JP (2003)
  • Tokyo, JP (2001 - 2010)

Company Filing History:


Years Active: 1986-2010

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31 patents (USPTO):

Title: The Innovative Contributions of Hiroaki Urushibata in Fuel Cell Technology

Introduction: Hiroaki Urushibata, an accomplished inventor based in Tokyo, Japan, has made significant strides in the field of fuel cell technology. With an impressive portfolio of 31 patents, Urushibata stands out as a pivotal figure in advancing energy solutions through innovation.

Latest Patents: Among his most recent patents is a groundbreaking method of controlling a fuel cell system. This innovation aids in preventing oxidation degradation of a catalyst in the cathode, ensuring that fuel-cell characteristics remain stable during repeated starting, shutting down, and pausing operations. The method includes supplying hydrogen-containing fuel gas to the anode while an oxidant gas is provided to the cathode. By connecting an external load for power generation and then strategically disconnecting it, this technology enhances the efficiency and reliability of fuel cell systems.

Another notable patent is the design of a fuel cell that integrates a solid polymer electrolyte membrane along with cathode and anode catalyst layers. This innovative cell design features a fuel-electrode substrate and an oxidizer-electrode substrate, each larger than their respective catalyst layers. The substrates are crafted to include fuel-sealing and oxidizer-sealing support portions with specially designed pores filled with resin, enhancing the overall durability and performance of the fuel cell.

Career Highlights: Urushibata's professional journey includes significant tenure at Mitsubishi Electric Corporation, where he contributed to crucial advancements in energy generation technology. Throughout his career, Urushibata has demonstrated a strong commitment to enhancing fuel cell systems and addressing the challenges of energy efficiency.

Collaborations: Throughout his career, Hiroaki Urushibata has collaborated with notable professionals such as Hisashi Shiota and Daigo Takemura. These partnerships have been instrumental in fostering innovation and advancing the frontiers of fuel cell technology.

Conclusion: Hiroaki Urushibata's extensive contributions to the field of fuel cell technology exemplify the impact of innovative thinking on sustainable energy solutions. His patented methods and designs continue to pave the way for advancements in energy efficiency, illustrating the vital role of inventors in shaping the future of technology.

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