Susumu Oi

Title: Susumu Oi: Innovator in Methane Fermentation

Introduction

Susumu Oi is a notable inventor based in Suita, Japan. He has made significant contributions to the field of methane fermentation, showcasing his expertise through innovative processes and techniques. His work has implications for sustainable energy and waste management.

Latest Patents

Oi holds a patent for a methane fermentation process. This process involves cultivating a strain of the genus Methanobacterium in a fermenter that contains essential components such as a carbon source, a nitrogen source, inorganic salts, and micro-flora. The strain exhibits a methanogenic activity above 8.7 × 10^-8 ml/cell.day during the stationary phase of growth. Remarkably, it maintains methanogenic activity even at an oxygen partial pressure of 1/30 atm and can survive under an oxygen partial pressure of up to 1/5 atm. The seed of the strain is cultivated anaerobically in a culture medium with nitrogen sources, inorganic salts, and reducing agents at a mesophilic temperature range of 25°C to 45°C, utilizing substrates like a mixed gas of hydrogen and carbon dioxide, formate, or acetate. The growth of the strain is enhanced when co-cultured with a strain from the genus Clostridium.

Career Highlights

Oi is associated with Matsushita Electric Industrial Co., Ltd., where he has contributed to various research and development projects. His work in methane fermentation is particularly noteworthy, as it addresses critical environmental challenges.

Collaborations

Some of his notable coworkers include Syunji Namikawa and Yasuyuki Nukina. Their collaborative efforts have further advanced the research in methane fermentation and related fields.

Conclusion

Susumu Oi's innovative work in methane fermentation exemplifies the potential for scientific advancements to contribute to sustainable energy solutions. His patent and collaborations highlight the importance of teamwork in achieving significant breakthroughs in technology.