Keisuke Ohkubo

Title: Keisuke Ohkubo: Innovator in Fused Silica Technology

Introduction

Keisuke Ohkubo is a notable inventor based in Himeji, Japan. He has made significant contributions to the field of materials science, particularly in the production of fused silica envelopes for discharge lamps. His innovative methods have paved the way for advancements in lighting technology.

Latest Patents

Ohkubo holds a patent for a "Method for producing a fused silica envelope for discharge lamp." This method involves coating the inner surface of a fused silica tube with a formulation containing titanium alcoholate. The coating undergoes a baking process at a temperature of at least 1720°C, allowing TiO2 to diffuse into the tube. The resulting titanium concentration ranges from 0.5% to 7% in terms of TiO2, with an overall average Ti concentration and wall thickness ranging from 3.7% μm to 42% μm. During the baking step, the silica tube is shaped to include a bulb-like portion by inflating it.

Career Highlights

Keisuke Ohkubo is associated with Ushio Denki Kabushiki Kaisha, a company known for its innovations in lighting technology. His work has contributed to the development of more efficient and durable lighting solutions.

Collaborations

Ohkubo has collaborated with notable colleagues such as Hidetoshi Ichinose and Tetsu Takemura. Their combined expertise has further enhanced the research and development efforts in their field.

Conclusion

Keisuke Ohkubo's contributions to the production of fused silica envelopes have significantly impacted the lighting industry. His innovative methods and collaborations continue to inspire advancements in technology.