Location History:
- Kawasaki, JP (1995)
- Kanagawa-ken, JP (1998)
- Tokyo, JP (2004 - 2009)
Company Filing History:
Years Active: 1995-2009
Title: The Innovations of Nobuyasu Ota
Introduction
Nobuyasu Ota is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of polymerized toners, holding a total of six patents. His work has advanced the manufacturing processes of these essential materials used in printing technologies.
Latest Patents
Ota's latest patents include a method for manufacturing polymerized toner. This method involves a washing step after polymerization, where colored polymer particles are washed using a continuous pressurizing filter in a circulation washing manner. The dispersion containing colored polymer particles is supplied by pressure to the inlet of the continuous pressurizing filter from a slurry tank. The dispersion is filtered while stirring, and the concentrated dispersion is fed back to the slurry tank from the outlet. A washing solution is added to dilute the filtrate, and the dispersion diluted by the washing solution is circulated in the filter. Another notable patent is a process for producing polymerized toner, which includes preparing a polymerizable monomer composition and polymerizing it in an aqueous medium to form colored polymer particles. This process involves a dispersing step that finely disperses the colorant in a mixed solution using a media dispersing machine.
Career Highlights
Throughout his career, Nobuyasu Ota has worked with notable companies such as Zeon Corporation and Nippon Zeon Company, Ltd. His experience in these organizations has allowed him to refine his expertise in polymer technology and toner production.
Collaborations
Ota has collaborated with several professionals in his field, including Kazunori Shigemori and Jun Hasegawa. These collaborations have contributed to the development of innovative solutions in toner manufacturing.
Conclusion
Nobuyasu Ota's contributions to the field of polymerized toners through his patents and collaborations highlight his role as a significant inventor in this industry. His work continues to influence the manufacturing processes of essential printing materials.