Company Filing History:
3 out of 119 
3 out of 70 Years Active: 2019-2023
Title: Etsuko Ohba: Innovator in Gallium Oxide Crystal Production
Introduction
Etsuko Ohba is a notable inventor hailing from Nagano, Japan, recognized for her contributions to the field of materials science. With a total of three patents to her name, Ohba is particularly focused on advancing the methods for producing gallium oxide crystals, a material with significant applications in electronics and optics.
Latest Patents
Ohba’s recent innovations include two groundbreaking patents related to the production of gallium oxide crystals. The first patent outlines a production apparatus aimed at preventing harmful substances generated within the furnace from diffusing into the surrounding environment. This innovative apparatus features an interior heated to temperatures exceeding 1,500°C in an oxidative atmosphere, along with a complex system of inlet and exhaust pipes, a duct, and a harmful substance elimination device.
Her second patent describes a detailed apparatus and method for producing gallium oxide crystals utilizing a vertical Bridgman furnace. This design incorporates a cylindrical furnace body with heat resistance, a crucible heated by an internal heater, and a heat-resistant wall made of multiple ring-shaped members, ensuring efficient production while maintaining safety standards.
Career Highlights
Etsuko Ohba has contributed her expertise to significant institutions, including Shinshu University and Fujikoshi Machinery Corporation. Her work focuses on refining processes that enhance the quality and safety of gallium oxide crystal production, showcasing her commitment to innovation in materials science.
Collaborations
Throughout her career, Ohba has collaborated with notable colleagues such as Keigo Hoshikawa and Takumi Kobayashi. These collaborations have undoubtedly furthered her research and development efforts, allowing for the exchange of ideas and fostering innovation within their shared field of expertise.
Conclusion
Etsuko Ohba stands out as a dedicated inventor making strides in the production of gallium oxide crystals. Her recent patents reflect a deep commitment to innovation and safety in materials science, paving the way for advancements in various technology sectors. As her work continues to evolve, the potential impact of her inventions leaves a promising outlook for the future of gallium oxide applications.