Motohide Wada

Title: Innovations of Motohide Wada in Silica Particle Production

Introduction

Motohide Wada, an inventive mind based in Shinjuku-ku, Japan, has made notable contributions to the field of silica particle production. With a strong focus on innovation, he holds three patents that reflect his commitment to enhancing industrial processes.

Latest Patents

Wada's latest patent titled "Process for Producing Silica Particles Suitable for Use as Filler for Paper" showcases a cutting-edge method for generating silica particles that are characterized by a narrow particle size distribution and high porosity. This process utilizes inexpensive starting materials such as sodium silicate, which results in a slurry containing silica particles. The methodology involves several steps: Firstly, a slurry is formed by mixing difficultly soluble first particles with an aqueous alkali silicate solution. Upon neutralization with a mineral acid, a second slurry is created where silica is deposited on the first particles. Finally, further addition of mineral acid allows the first particles to dissolve, leading to the formation of a third slurry containing pure silica particles. The resulting silica, when used in small amounts as a filler in paper making, significantly enhances the paper's brightness and opacity.

Career Highlights

As an inventor at Oji Paper Co., Ltd., Wada's contributions extend beyond just his patents. His career has been marked by a dedication to advancing the efficiency and quality of materials used in paper production. His innovative techniques not only serve the immediate needs of the industry but also contribute to sustainable practices by leveraging inexpensive materials.

Collaborations

Throughout his career, Motohide Wada has collaborated with notable coworkers such as Masashi Matsuda and Masasuke Watanabe. These partnerships have facilitated the sharing of ideas and further enhanced the innovative processes developed at Oji Paper Co., Ltd.

Conclusion

Motohide Wada stands out as a prominent inventor in the realm of material science, especially in the production of silica particles for the paper industry. His inventive spirit and collaboration with fellow innovators continue to push the boundaries of technology and improve industrial practices, making a significant impact in his field.