This inventor holds 17 USPTO granted patents and 3 EPO patents. Top assignees: Canon Kabushiki Kaisha, Cabot Corporation. Active years: 2003-2015.
Location History:
- Tokyo, JP (2011)
- Kawasaki, JP (2003 - 2013)
- Kanagawa, JP (2003 - 2015)
Company Filing History:
17 out of 92,842 
1 out of 838 
Years Active: 2003-2015
Title: **Innovations by Tomonari Watanabe: Pioneering Water-Based Ink Technologies**
Introduction
Tomonari Watanabe, based in Kanagawa, Japan, is a prominent inventor known for his significant contributions to inkjet technology. With an impressive portfolio of 17 patents, he has dedicated his career to pushing the boundaries of innovation in the field of printing technology.
Latest Patents
Watanabe's recent patents focus on water-based inks and related technologies. His innovative water-based ink formulation includes water, multiple water-soluble organic solvents, and a water-insoluble coloring material. A distinct feature of his invention is the careful balance between good and poor solvents. The ratio of these solvents, ranging from 10:5 to 10:30 by mass, ensures optimal performance. Utilizing the Bristow method, Watanabe's work has led to the development of pigment inks capable of producing high optical density (OD) images with minimal ink usage. This noteworthy advancement speaks to both efficiency and quality in inkjet recording methods and apparatuses.
Career Highlights
Watanabe has worked with notable companies in the industry, including Canon Inc. and Cabot Corporation. His tenure at these organizations has enabled him to refine his expertise and contribute to various innovations surrounding ink technology. His patents showcase a deep understanding of chemical formulations and their applications in printing systems.
Collaborations
Throughout his career, Watanabe has collaborated with esteemed colleagues such as Mikio Sanada and Masashi Ogasawara. These partnerships have played a crucial role in the development of his groundbreaking inventions, highlighting the importance of collaboration in the innovative process.
Conclusion
In conclusion, Tomonari Watanabe stands out as a key figure in the realm of water-based ink technologies. His inventive solutions not only advance the field of inkjet printing but also emphasize the impact of scientific research and collaboration on the creation of effective and sustainable products. As the industry continues to evolve, Watanabe's contributions will undoubtedly pave the way for future innovations.