Location History:
- Wakayama-ken, JP (2000)
- Osaka, JP (2007 - 2010)
- Wakayama, JP (1997 - 2015)
Company Filing History:
Years Active: 1997-2015
Title: Takehiro Tsutsumi: Innovator in Electrophotography and Ink Technology
Introduction
Takehiro Tsutsumi is an accomplished inventor based in Wakayama, Japan. He holds an impressive 22 patents that reflect his contributions to the fields of electrophotography and ink technology. Tsutsumi's innovative spirit has paved the way for advancements that enhance image quality and printing efficiency.
Latest Patents
Tsutsumi's recent patents include two significant innovations:
1. **Process for Producing Toner for Electrophotography**: This invention focuses on a novel process for creating toner that substantially improves the dispersibility of colorants and enhances image density. The method involves mixing a dispersion of colorant-containing polymer particles with resin particles that largely lack colorants, resulting in a more efficient aggregation process.
2. **Crosslinked Core/Shell Polymer Particles**: This patent introduces core/shell polymer particles designed for water-based inks used in ink-jet printing. These particles are not only capable of delivering outstanding optical density and gloss but also prevent bronzing, thereby ensuring high-quality print results. Furthermore, the invention describes a water dispersion and a water-based ink that utilize these advanced polymer particles.
Career Highlights
Tsutsumi is associated with Kao Corporation, a renowned company in the industry that focuses on innovative consumer products and technologies. His work at Kao has allowed him to push the boundaries of printing technology and toner production, thereby contributing to the overall progress in these fields.
Collaborations
Throughout his career, Tsutsumi has collaborated with talented individuals such as Koji Azuma and Isao Tsuru. These collaborations have facilitated the exchange of ideas and expertise, aiding Tsutsumi in achieving significant milestones in his patent portfolio.
Conclusion
Takehiro Tsutsumi stands as a prolific inventor whose work has notably impacted the realms of electrophotography and ink technology. His 22 patents not only highlight his innovative approaches but also reflect the importance of collaboration in driving technological advancements. As he continues to contribute to his field, the implications of his inventions will likely resonate across various applications in printing technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.