Company Filing History:
Years Active: 2002-2006
Title: Hisanao Jo: Innovator in Nitrogen Adsorption Technologies
Introduction
Hisanao Jo is a notable inventor based in Sakai, Japan. He has made significant contributions to the field of nitrogen adsorption technologies, holding a total of 2 patents. His work focuses on the development of selective adsorbents for nitrogen and methods for air separation.
Latest Patents
His latest patents include a selective adsorbent for nitrogen and a method for separating air using the same. The nitrogen selective adsorbent comprises a zeolite of a faujasite crystalline structure containing lithium and at least one of sodium and hydrogen as essential cations. This adsorbent exhibits a nitrogen adsorption characteristic represented by a specific correlation between the number of associated lithium ions per unit lattice of a zeolite crystal and the amount of adsorbed nitrogen per unit lattice of the zeolite crystal. The air separation method employs this nitrogen selective adsorbent to achieve separation between nitrogen and oxygen through selective adsorption of nitrogen in air.
Another patent involves a nitrogen adsorbent comprising a crystalline X zeolite with a faujasite structure, characterized by an SiO2/Al2O3 ratio of less than 3.0. This crystal contains at least one trivalent element from the group consisting of iron, boron, and gallium, along with aluminum tetrahedral units associated with cations. Despite the presence of a designated trivalent element, the adsorbent maintains the number of cation sites contributing to adsorption, demonstrating excellent separation performance of nitrogen and oxygen, as well as remarkable heat resistance. Notably, when this nitrogen adsorbent is heated under a vacuum before use, its adsorption performance is significantly improved.
Career Highlights
Throughout his career, Hisanao Jo has worked with prominent companies such as Daido Hoxan Inc. and Air Water Inc. His experience in these organizations has contributed to his expertise in the field of nitrogen adsorption technologies.
Collaborations
Hisanao Jo has collaborated with notable colleagues, including Hiromi Kiyama and Haruo Yoshioka. These collaborations have further enriched his work and innovations in the field.
Conclusion
Hisanao Jo is a distinguished inventor whose work in nitrogen adsorption technologies has led to significant advancements in air separation methods. His contributions continue to impact the industry positively.