Hiroshi Kajimaru

Title: **Hiroshi Kajimaru: Innovator in Image-Recording Materials**

Introduction

Hiroshi Kajimaru is a notable inventor based in Kyoto, Japan, with a strong focus on advancements in image-recording materials. With a total of four patents to his name, Kajimaru has made significant contributions to the field, particularly in producing materials that enhance film-forming performance and stability.

Latest Patents

Among his latest innovations, Kajimaru has developed a patent for an image-recording material and its production process. This invention aims to prevent the flocculation of coating liquids that contain both a water-dispersible emulsion and a water-soluble polymer compound. The resultant image-recording material exhibits improved stability and superior surface conditions. The image-recording layer is formulated using a water-dispersible polyester emulsion with a volume-average particle size of 55 nm or more and a water-soluble polymer compound, specifically polyethylene oxide, with a weight-average molecular weight of 400,000 or less.

Another patent focuses on an aqueous dispersion of polyester resin, which is characterized by excellent molecular weight stability. This invention outlines a production method for obtaining a dispersion that contains very low levels of organic solvents, ensuring environmental safety. By adding a curing agent to this aqueous dispersion, an efficient aqueous coating composition is created.

Career Highlights

Hiroshi Kajimaru has worked with prestigious companies, including Unitika Ltd. and Fujifilm Corporation. His tenure at these organizations has facilitated his research and development efforts, leading to his notable patents in the realm of image-recording technologies.

Collaborations

Throughout his career, Kajimaru has collaborated with skilled professionals in the field such as Kenjin Shiba and Shoji Okamoto. These collaborations have played a crucial role in fostering innovative ideas and developing cutting-edge technologies for image-recording materials.

Conclusion

Hiroshi Kajimaru is a pivotal figure in the innovation of image-recording materials. His patents not only address critical industry challenges but also pave the way for future advancements in the field. As he continues to push the boundaries of technology, his work remains influential among inventors and companies alike, highlighting the importance of innovation in enhancing product quality and performance.