Kohji Ogura

Title: Kohji Ogura: A Pioneer in Piezoelectric Innovations

Introduction

Kohji Ogura, an accomplished inventor based in Nagoya, Japan, has made significant contributions to the field of piezoelectric materials. With an impressive portfolio of seven patents, Ogura’s work primarily focuses on innovative composite materials and their applications.

Latest Patents

One of Ogura's notable inventions is a **piezoelectric composite material** that integrates an organic matrix with a high volume (72-78%) of piezoelectric ceramic powder. This composite features three types of lead titanate particles, each with distinct average particle sizes of 2.5-4.5 µm, 5-10 µm, and 20-40 µm. Notably, some particles can be substituted with lead titanate zirconate, enhancing the material's versatility.

Another significant creation is his **piezoelectric cable**, designed to detect underwater acoustic waves while being towed by a boat. This innovative cable comprises a core electrode and an outer electrode, with a piezoelectric layer sandwiched in between. Additionally, it includes a shape-retaining member formed from a shape memory alloy, which alters its phase according to temperature fluctuations, ensuring reliability and effectiveness in various conditions.

Career Highlights

Kohji Ogura is currently associated with NGK Spark Plug Company, Limited, where he continues to drive advancements in piezoelectric technologies. His expertise in material science and engineering has propelled him to become a respected figure within the industry.

Collaborations

Throughout his career, Ogura has worked alongside talented colleagues, including Hisao Banno and Kasumi Ogawa. Their collaborative efforts have propelled innovative research and development, leading to groundbreaking advancements in piezoelectric applications.

Conclusion

Kohji Ogura's contributions to the field of piezoelectric materials underscore his role as a leading inventor in Japan. With his continuous drive for innovation, Ogura's patents lay the groundwork for future developments in acoustic wave detection and advanced composite materials. His work not only enhances technological capabilities but also inspires future generations of inventors in the realm of scientific research and application.