Location History:
- Amagasaki, JP (1996 - 1998)
- Kobe, JP (1999 - 2001)
Company Filing History:
Years Active: 1996-2001
Title: Yasuki Nagai: Innovator in Toner Technology
Introduction
Yasuki Nagai is a prominent inventor based in Amagasaki, Japan. He has made significant contributions to the field of toner technology, holding a total of 6 patents. His work focuses on developing innovative methods for manufacturing toner used in electrophotography.
Latest Patents
Nagai's latest patents include a toner for developing electrostatic latent images and a manufacturing method thereof. This invention relates to a toner that comprises a binder resin and a colorant, manufactured through a wet-type granulation method using an organic dispersing agent. The aqueous extract liquid used in this process has a surface tension of 50 to 72 mN/m at 25°C, obtained by mixing 1 part-by-weight toner with 50 parts-by-weight distilled water for 1 hour at 80°C. Another notable patent is the production method of toner for electrophotography. This process involves preparing a toner composition solution by mixing a binder resin, a colorant, a charge-control agent, and an organic solvent. The resulting solution is then mixed with a dispersion solution containing a dispersing agent, utilizing a collision shearing force of beads or a colloid mill method to obtain an O/W type emulsion. The emulsion is heated to eliminate the organic solvent, and the toner is obtained by washing and drying the precipitated particles.
Career Highlights
Yasuki Nagai is currently employed at Minolta Company, Ltd., where he continues to innovate in the field of toner technology. His expertise and dedication have led to advancements that enhance the quality and efficiency of toner production.
Collaborations
Nagai has collaborated with notable coworkers, including Mitsutoshi Nakamura and Yukio Tanigami. Their combined efforts have contributed to the development of cutting-edge technologies in the industry.
Conclusion
Yasuki Nagai's contributions to toner technology exemplify his innovative spirit and commitment to advancing the field. His patents reflect a deep understanding of the complexities involved in toner manufacturing, making him a key figure in this area of research.