Location History:
- Shiga, JP (2002)
- Rittou, JP (2010)
Company Filing History:
Years Active: 2002-2010
Title: Takashi Doi: Innovator in Fuel Cell Technology
Introduction
Takashi Doi is a prominent inventor based in Rittou, Japan. He has made significant contributions to the field of fuel cell technology, holding 2 patents that focus on innovative materials and methods for enhancing fuel cell performance.
Latest Patents
Doi's latest patents include a titanium-based material for fuel cell separators and a method for its production. This separator material is designed to decrease the weight of fuel cells while maintaining good corrosion resistance. It minimizes the increase in electrical contact resistance during prolonged use. The titanium or titanium alloy is prepared by melting to contain no more than 5 mass % boron, resulting in a titanium-based material with fine TiB-type boride particles that are precipitated and dispersed. The material is then treated in an aqueous acidic solution to expose some of the TiB-type boride particles on the surface through the passive film formed.
Another notable patent is for a stainless steel product intended for polymer electrode fuel cells. This product features a passive film on its surface, with at least one conductive metallic inclusion of carbide or boride protruding through the outer surface of the passive film. This design results in low contact electrical resistance, making it suitable for use in bipolar plates of polymer electrode fuel cells.
Career Highlights
Takashi Doi is associated with Sumitomo Metal Industries, Inc., where he continues to innovate in the field of materials science and fuel cell technology. His work has been instrumental in advancing the efficiency and effectiveness of fuel cells, which are crucial for sustainable energy solutions.
Collaborations
Doi has collaborated with notable colleagues such as Yoshio Tarutani and Akira Seki, contributing to a dynamic research environment that fosters innovation and development in fuel cell technologies.
Conclusion
Takashi Doi's contributions to fuel cell technology through his patents and collaborations highlight his role as a key innovator in the field. His work not only advances scientific understanding but also paves the way for more efficient energy solutions.