Eiji Morishige

Title: Eiji Morishige and Fuel Cell Innovation.

Introduction

Eiji Morishige is an inventor associated with Tokyo, Japan, and NKK Corporation. His patent work focuses on fuel-cell design, including cell stacks, separators, electrode materials, and systems for managing fuel and air. His listed portfolio includes 2 patents.

Latest Patents

Morishige’s described fuel-cell inventions address ways to arrange cell members and separators while supplying fuel and air to the electrodes and removing excess gases.

One design uses flat-plate solid electrolytes with fuel and air electrode layers. Its separators combine frame materials with shaped metallic sheets, and the cell includes separate fuel and air supply and discharge paths. Collector members are mounted on the outer sides of the separators at the top and bottom of the stack. A related configuration places a wave-form member between upper and lower flat-plate metallic separator members, with openings that provide fuel and air to the respective cell layers.

Another design uses a stack of cell members containing separators, air electrodes, solid electrolytes, and fuel electrodes. Spacers run along the separator peripheries, while grooves and dedicated paths direct air to the air electrodes and fuel to the fuel electrodes. The design also includes paths for exhausting excess air and discharging excess fuel, as well as an oxidation-resistant coating on the air-facing side of the separators. The solid electrolyte may be formed using laser physical vapor deposition, plasma thermal spraying, electron-beam vapor deposition, or sputtering. The air electrode includes a mixed powder of strontium-doped lanthanum manganese oxide and yttria-stabilized zirconia.

Career Highlights

Morishige’s listed inventions demonstrate a focus on practical fuel-cell engineering. They address component arrangement, gas-flow management, separator durability, and material choices for solid electrolytes and air electrodes. His work is associated with NKK Corporation.

Collaborations

The listed coworkers include Hirotaka Nakagawa and Yoshio Sato. Their names provide context for Morishige’s professional connections, though the supplied information does not specify particular joint projects.

Conclusion

Eiji Morishige’s patent work centers on fuel-cell structures and materials, with designs intended to organize cell components, manage fuel and air flows, and support durable operation.