Norio Ishii

Title: Norio Ishii: Innovator in Epsilon-Caprolactam Production

Introduction

Norio Ishii is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of epsilon-caprolactam. With a total of 6 patents to his name, Ishii's work has had a notable impact on industrial processes.

Latest Patents

Ishii's latest patents focus on the production of epsilon-caprolactam through gas phase catalytic synthesis. This innovative process involves bringing cyclohexanone oxime into contact with a crystalline metallo-silicate catalyst. The catalyst features a Si/metal atomic ratio of more than 500, with metal components including Ga, Fe, B, Zr, Bi, Nb, Zn, Be, Cr, La, Ti, Hf, V, and/or Cu. Another patent details a method for producing epsilon-caprolactam using a crystalline zeolite, such as aluminosilicate or metallosilicate zeolite, which has been surface treated with an organometallic compound.

Career Highlights

Norio Ishii is currently employed at Sumitomo Chemical Company, Limited, where he continues to advance his research and development efforts. His work has been instrumental in enhancing the efficiency and selectivity of chemical synthesis processes.

Collaborations

Ishii has collaborated with notable colleagues, including Hiroshi Sato and Kenichi Hirose. These partnerships have fostered innovation and contributed to the success of their projects.

Conclusion

Norio Ishii's contributions to the field of epsilon-caprolactam production exemplify his dedication to innovation in chemical engineering. His patents and collaborative efforts continue to influence the industry positively.