Wako, Japan

Nobuhiro Saito

This inventor holds 21 USPTO granted patents, plus 2 CIPO patents, primarily in Fuel Cell Technology. Top assignees: Honda Giken Kogyo Kabushiki Kaisha, Gorika Giken Co., Ltd., Honda Giken Kabushiki Kaisha. Active years: 1990-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuhiro Saito. Retrieved from https://idiyas.com/inventor/nobuhiro-saito

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

Calculating rank

% Patents Active = 76.2


Average Co-Inventor Count = 4.1

ph-index = 6

Forward Citations = 146(Granted Patents)


Location History:

  • Wako, JP (2002 - 2007)
  • Saitama, JP (1990 - 2010)
  • Saitama-ken, JP (2005 - 2010)

Company Filing History:


Years Active: 1990-2010

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Areas of Expertise:
Polymer Electrolyte Membrane
Fuel Cell
Solid Polymer Fuel Cell
Membrane Electrode Assembly
Thixocasting Process
Light Alloy Casting
Aluminum Alloy
Separator
21 patents (USPTO):Explore Patents

Title: Innovations by Nobuhiro Saito in Polymer Electrolyte Technology

Introduction

Nobuhiro Saito, an influential inventor based in Wako, Japan, has made significant contributions to the field of polymer electrolyte technologies. With an impressive portfolio of 21 patents, Saito is recognized for his innovative approaches to enhancing the efficiency and performance of fuel cells.

Latest Patents

Among his latest inventions is a groundbreaking polymer electrolyte membrane, which is created by treating a sulfonated polyarylene membrane that possesses an initial water content of 80-300 weight percent through a hot-water treatment process. This invention is pivotal for developing more efficient fuel cell systems. Additionally, he holds a patent for a composite polymer electrolyte membrane that features a matrix made of a first sulfonated aromatic polymer with a high ion exchange capacity, supported by a second sulfonated aromatic polymer in the form of fibers or a porous membrane.

Saito's innovative designs for fuel cells include a unique configuration where an oxygen-containing gas supply passage and discharge passage run diagonally through a first metal separator. This setup optimizes gas flow, enhancing overall fuel cell performance. Notably, his design incorporates a fuel gas flow field connected to the fuel gas supply and discharge passages via strategically placed inlet and outlet buffers.

Career Highlights

Saito has garnered rich experience through his tenures at notable companies, including Honda and JSR Corporation. His roles in these organizations have allowed him to refine his expertise and work on advanced technologies that propel the industry forward.

Collaborations

Throughout his career, Nobuhiro Saito has collaborated with esteemed coworkers such as Takeyoshi Nakamura and Masaaki Nanaumi. Their collective efforts have further advanced the development of innovative solutions in the realm of polymer electrolyte technologies.

Conclusion

Nobuhiro Saito's work embodies excellence in innovation, particularly in polymer electrolyte membranes and fuel cell systems. With numerous patents to his name, he continues to influence the field, paving the way for future advancements in clean energy technology. His contributions highlight the importance of creative thinking and collaboration in the pursuit of sustainable solutions.

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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