This inventor holds 21 USPTO granted patents and 1 published patent application and 1 EPO patent, primarily in Electrostatic Toner Development. Top assignees: Canon Kabushiki Kaisha, Nippon Zeon Company, Ltd.. Active years: 1985-2007.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yokohama, JP (1985 - 2003)
- Mishima, JP (2001 - 2003)
- Kanagawa-ken, JP (2004)
- Shizuoka, JP (2006 - 2007)
Company Filing History:
Years Active: 1985-2007
Areas of Expertise:
Title: The Innovative Contributions of Takaaki Kohtaki in Toner Technology
Introduction: Takaaki Kohtaki, an inventive mind based in Yokohama, Japan, has made significant strides in the field of toner technologies. With an impressive portfolio of 21 patents, he has dedicated his career to developing products that meet stringent performance standards and environmental challenges.
Latest Patents: Among his latest innovations is a black toner characterized by a defined loss tangent. This patent aims to provide a black toner with excellent charging and transferring properties, even under severe environmental changes. The toner comprises toner particles that include a binder resin, carbon black, and a releasing agent. Key specifications include a weight-average particle diameter ranging from 3.5 to 8.0 µm, an acid value and hydroxyl value totaling 30 to 75 mgKOH/g, and an average circularity of particles with a circle-equivalent diameter of 2 µm or more ranging from 0.915 to 0.960. The invention includes specific expressions for the loss tangent at various frequencies, ensuring enhanced performance in diverse applications.
Career Highlights: Throughout his career, Takaaki Kohtaki has held positions at renowned companies such as Canon Kabushiki Kaisha and Nippon Zenn Co. Ltd. His work has not only contributed to the product lines of these corporations but has also influenced broader industry standards in toner technology.
Collaborations: Takaaki has collaborated with notable colleagues, including Tadashi Doujo and Makoto Unno. Together, they have explored advancements in toner formulations and performance characteristics, reflecting the collaborative spirit of innovation in research and development.
Conclusion: Takaaki Kohtaki's contributions to the field of toner technology underscore his role as an influential inventor. His patents are not just numbers; they represent a commitment to enhancing the capabilities of toner products under challenging conditions. As his work continues to evolve, it is clear that his innovative spirit will leave a lasting impact on the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile