Toshiyuki Nishikawa

Title: The Innovations of Toshiyuki Nishikawa

Introduction

Toshiyuki Nishikawa is a notable inventor based in Akishima, Japan. He has made significant contributions to the field of optical materials, particularly through his innovative work on optical glass. His expertise and inventions have garnered attention in the scientific community.

Latest Patents

Nishikawa holds a patent for "Optical glass and use thereof." This invention relates to oxide glass with a refractive index (nd) ranging from 1.95 to 2.50 and an Abbe number (νd) ranging from 18 to 40. The optical glass includes essential components such as Si, B, La, Ti, Nb, and at least one from Gd, Y, and Yb. The composition specifies cation percentages, including 1 to 30% of Si and 1 to 50% of B, with a total of Si and B ranging from 5 to 55%. Additionally, it includes 11 to 70% of La, Gd, Y, and Yb, with 10 to 50% of La, and a total of 23 to 70% of Ti, Nb, Ta, and W, ensuring that Nb is equal to or greater than 1% and Ti is greater than 22%.

Career Highlights

Nishikawa is currently associated with Hoya Corporation, a leading company in optical products and solutions. His work has contributed to advancements in optical technology, enhancing the performance and applications of optical glass in various industries.

Collaborations

One of his notable collaborators is Tomoaki Negishi. Together, they have worked on projects that push the boundaries of optical material science.

Conclusion

Toshiyuki Nishikawa's contributions to optical glass innovation highlight his role as a significant inventor in the field. His patent reflects a deep understanding of material properties and their applications, marking him as a key figure in optical technology advancements.