Location History:
- Hino, JP (2000 - 2004)
- Hachioji, JP (2003 - 2015)
- Tokyo, JP (2004 - 2018)
Company Filing History:
13 out of 713 
8 out of 4,240 
4 out of 3,106 
Years Active: 2000-2018
Title: Innovations and Contributions of Hirotaka Iijima
Introduction
Hirotaka Iijima is a prominent inventor based in Tokyo, Japan, with a remarkable portfolio of 25 patents to his name. His innovative contributions primarily focus on advancements in inkjet recording methods and active-ray curable ink technologies, making a significant impact on the printing industry.
Latest Patents
Among his latest creations, Iijima has developed an image-forming method that includes an inkjet recording method utilizing an active-light-ray-curable inkjet ink. This particular ink comprises a photopolymerizable compound, a wax, a photopolymerization initiator, and a coloring material, which undergoes a reversible sol-gel phase transition based on temperature. The method involves curing the ink through active light-ray irradiation onto the recording medium, designed to suppress blooming by precisely selecting the components and conditions within the ink formulation.
Another notable patent revolves around an active ray-curable inkjet ink that includes a photocurable compound, photopolymerization initiator, gelling agent, and a liquid compound. This formulation allows for droplets to maintain separation after landing, thus enhancing image quality. Furthermore, it increases the surface gloss of printed images while minimizing differences in coating thickness, yielding smoother textures and high-quality outputs.
Career Highlights
Hirotaka Iijima has demonstrated his expertise through positions at notable companies in the industry, including Konica Minolta Holdings, Inc. and Konica Minolta, Inc. His work has not only advanced technology but also set new standards for printing solutions worldwide.
Collaborations
Throughout his career, Iijima has collaborated with esteemed colleagues, such as Akio Maeda and Toshiyuki Takabayashi. These partnerships have fostered inspiration and innovation, allowing for diverse perspectives to contribute to their projects, leading to successful patent applications.
Conclusion
Hirotaka Iijima's groundbreaking patents and collaborations emphasize his role as a vanguard in inkjet technology. His continued exploration and innovation promise to push the boundaries of the printing industry, ensuring high-quality outputs and advancements for years to come.