Company Filing History:
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2 out of 1,306 
Years Active: 2011-2025
Title: Naozumi Fujiwara: Innovator in Sublimation Technology
Introduction
Naozumi Fujiwara is a prominent inventor based in Kyoto, Japan. He has made significant contributions to the field of sublimation technology, holding a total of 11 patents. His innovative approaches have advanced methods in substrate processing and drying techniques.
Latest Patents
Among his latest patents, Fujiwara has developed a method for producing a liquid containing a sublimable substance. This method involves selecting a sublimable substance based on the hydrophilic or hydrophobic nature of a pattern's surface. For hydrophilic surfaces, a solvent with lower solubility in water than the sublimable substance is chosen. Conversely, for hydrophobic surfaces, a solvent with lower solubility in oils is selected. The sublimable substance is then dissolved in the chosen solvent. Additionally, he has patented a substrate processing method and apparatus that utilizes a pre-drying processing liquid containing a sublimable substance. This liquid is applied to a substrate's front surface, where the solvent evaporates, forming a solidified body that is subsequently sublimated and removed.
Career Highlights
Fujiwara has worked with notable companies such as Screen Holdings Co., Ltd. and Dainippon Screen Manufacturing Co., Ltd. His work in these organizations has been instrumental in developing advanced technologies in the field of substrate processing.
Collaborations
Some of his notable coworkers include Katsuhiko Miya and Masahiko Kato, who have collaborated with him on various projects.
Conclusion
Naozumi Fujiwara's contributions to sublimation technology and substrate processing have established him as a key figure in his field. His innovative patents continue to influence advancements in technology and manufacturing processes.