Company Filing History:
15 out of 6,064 
4 out of 1,131 
Years Active: 2010-2025
Title: Keiji Maruo – Innovator in Polyarylate Resin Technology
Introduction
Keiji Maruo is a notable inventor based in Osaka, Japan, recognized for his contributions to the field of polyarylate resin technology. With a commendable track record of 19 patents, Maruo has significantly advanced the science behind electrophotographic materials, which are critical in various imaging technologies.
Latest Patents
Maruo's most recent innovations involve complex formulations of polyarylate resins. His patents detail a polyarylate resin that comprises several repeating units, specifically designed to enhance performance characteristics. For instance, one patent states that the resin includes repeating units (1), (2), and (4), with an important repeating unit (3) that can vary in its proportions. The percentage of repeats of unit (3) is specified to be greater than 0% but less than 50%. Another patent outlines similar structural requirements, additionally noting that the percentage of repeating unit (4) must fall between 35% and 70%. These innovations are pivotal in the development of electrophotographic photosensitive members, which are essential in printing technologies.
Career Highlights
Throughout his career, Maruo has been associated with leading companies in the technology sector, notably Kyocera Document Solutions Inc. and Kyocera Mita Corporation. His roles in these organizations have allowed him to further develop his expertise in polymer materials and their applications in imaging solutions.
Collaborations
Maruo has collaborated with various esteemed colleagues, including Jun Azuma and Tomofumi Shimizu. These collaborations have contributed greatly to his inventive work, allowing for the exchange of ideas and the development of cutting-edge technologies within their field.
Conclusion
Keiji Maruo's innovative spirit and dedication to the field of polymer science have resulted in significant advancements that impact technology today. With 19 patents under his belt, his contributions to polyarylate resin technology continue to shape the future of electrophotographic systems, showcasing his status as a leading inventor in this domain.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.