Location History:
- Utsunomiya, JP (2010 - 2023)
- Tochigi, JP (2023)
Company Filing History:
15 out of 90,753 
2 out of 34 
2 out of 52,751 
Years Active: 2010-2024
Title: Keiji Yamashita: Innovator in Planarization Technology
Introduction
Keiji Yamashita is a prominent inventor based in Utsunomiya, Japan. He has made significant contributions to the field of planarization technology, holding a total of 15 patents. His work has been instrumental in advancing methods for substrate surface treatment, particularly in the context of liquid curable compositions.
Latest Patents
One of Yamashita's latest patents involves a substrate surface planarization method. This method includes an arranging step where a liquid curable composition is applied to a substrate surface with unevenness. Following this, a waiting step allows the surface of the liquid curable composition to become smooth. Finally, a light exposure step is applied to cure the layer of the liquid curable composition. The arranging step consists of two phases: the first involves applying a layer of a first liquid curable composition containing a polymerizable compound, while the second involves arranging droplets of a second liquid curable composition onto the first layer.
Career Highlights
Throughout his career, Keiji Yamashita has worked with notable companies such as Canon and Canon Nanotechnologies, Inc. His experience in these organizations has allowed him to refine his expertise in the field of nanotechnology and planarization methods.
Collaborations
Yamashita has collaborated with several professionals in his field, including Toshiki Ito and Keiko Chiba. These collaborations have contributed to the development of innovative solutions in substrate surface treatment.
Conclusion
Keiji Yamashita's contributions to planarization technology and his extensive patent portfolio highlight his role as a leading inventor in this field. His innovative methods continue to influence advancements in substrate surface treatment.