Company Filing History:
Years Active: 2009-2018
Title: The Innovative Mind of Yojiro Kojima: A Pioneer in Ink Technology
Introduction: Yojiro Kojima, a resident of Tokyo, Japan, is an accomplished inventor known for his significant contributions to the field of ink technology. With a remarkable portfolio comprising eight patents, he has played a pivotal role in the advancement of ink jet recording methods, enhancing the efficiency and quality of printing.
Latest Patents: Among Yojiro Kojima’s latest innovations are two noteworthy patents focused on aqueous ink formulations. The first patent details an aqueous ink containing a self-dispersible pigment designed for ink jet recording methods. This formulation utilizes a recording head that ejects the ink through thermal energy. It incorporates a compound represented by General Formula (I), featuring various functional groups, including sulfonic and carboxylic acid groups, optimizing the ink's performance.
The second significant patent outlines an ink comprising a first and a second coloring material, with a total mass percentage of 6.0% or less. The first coloring material is a black coloring agent that exhibits a maximum absorption wavelength difference of 20.0 or more when compared to a 20.0% by mass aqueous solution of 1,2-hexanediol and water. In contrast, the second coloring material is specifically designed to ensure minimal absorption wavelength differentiation, thereby enhancing color quality in printed materials.
Career Highlights: Yojiro Kojima has honed his expertise at Canon Kabushiki Kaisha, a leading player in the printing and imaging industry. His work has been instrumental in driving forward the company's innovative initiatives in the realm of ink technology, securing multiple patents that underline his status as a leading inventor.
Collaborations: Throughout his career, Kojima has collaborated with esteemed colleagues such as Yukako Tamanuki and Shogo Takemoto. Together, they have collectively contributed to groundbreaking projects that continue to influence the printing tech landscape.
Conclusion: As an inventor, Yojiro Kojima exemplifies the spirit of innovation in the ink technology sector. His eight patents reflect a continuous pursuit of excellence and an unwavering commitment to enhancing the quality of ink used in modern printing applications. Through his work at Canon and his collaborations with talented professionals, Kojima has left an indelible mark on the industry, influencing the future of ink jet recording methods.