This inventor holds 12 USPTO granted patents and 11 published patent applications and 6 EPO patents. Top assignees: The Inctec Inc., Dnp Fine Chemicals Co., Ltd., Seiko Epson Corporation. Active years: 2006-2025.
Location History:
- Kanagawa-Ken, JP (2011)
- Yokohama, JP (2008 - 2013)
- Kanagawa, JP (2006 - 2014)
- Tokyo-to, JP (2014)
Company Filing History:
6 out of 14 
4 out of 21 
3 out of 34,238 
Years Active: 2006-2025
Title: Innovator Mitsuyoshi Tamura: Pioneering Advances in Ink Technology
Introduction
Mitsuyoshi Tamura, a distinguished inventor hailing from Yokohama, Japan, has made significant contributions to the field of ink technology with a total of ten patents. His inventive spirit has led to innovative solutions that enhance the quality and performance of ink compositions and printing methods.
Latest Patents
Among his recent patents, Tamura has developed an exceptional ink composition that showcases superior storage stability, resistance to bleeding, and good fixability to various paper types, enabling the printing of clear images. This ink composition includes a pigment dispersion formed from a surface-treated pigment and a resin emulsion. The surface-treated pigment is uniquely engineered by binding functional groups to its surface that possess a higher calcium index than that of 1,2,3-benzenetricarboxylic acid. Furthermore, the resin emulsion is designed to ensure that an aqueous solution containing 1 mass % of its solid content maintains a conductance level of 300 µS/cm or lower.
Tamura has also patented an inkjet recording method along with an ink set specifically for inkjet applications. This method is characterized by the application of a receiving solution to designated areas on a recording medium, facilitating effective printing with inkjet inks. The receiving solution comprises various metal salts and resins in specified concentrations that optimize the printing quality.
Career Highlights
Throughout his career, Mitsuyoshi Tamura has collaborated with prominent companies, including Inctec Inc. and Seiko Epson Corporation. His work at these institutions has enabled him to refine his expertise in ink technology and solidify his role as an innovator in this domain.
Collaborations
Tamura has worked alongside esteemed colleagues such as Yukio Sugita and Fumie Yamazaki. These collaborations have fostered a creative environment that has contributed to the development of groundbreaking ink solutions and enhanced printing methods.
Conclusion
Mitsuyoshi Tamura continues to drive innovation in the ink technology sector with his patented inventions and collaborations. His dedication to developing advanced ink compositions and printing techniques reflects a commitment to improving the quality and effectiveness of printed materials, solidifying his legacy as a pioneering inventor in this field.