Location History:
- Minato-ku, JP (2012)
- Oita, JP (2001 - 2013)
Company Filing History:
10 out of 1,960 
1 out of 851 
1 out of 405 Years Active: 2001-2013
Title: The Innovative Genius of Kazufumi Kai
Introduction
Kazufumi Kai is a prominent inventor based in Oita, Japan, with an impressive portfolio of 12 patents to his name. His work primarily focuses on the development of advanced materials that have significant applications in display technology and polymer science.
Latest Patents
Among his notable inventions are two cutting-edge patents. The first is a **transparent composite material** designed to address the challenges faced in substrate materials for display devices. This material consists of a cured product derived from a three-dimensionally crosslinkable resin composition that incorporates a tabular inorganic substance. With a number-average particle size ranging from 10 to 300 nm and an aspect ratio of 10 to 300, this innovative composite exhibits a small coefficient of thermal expansion, reducing the risk of cracks and disconnections in transparent electrodes, thereby enhancing durability in display devices.
The second notable patent is a **norbornene copolymer** that showcases outstanding characteristics such as transparency, heat resistance, low water absorption, and electric insulating property. This copolymer comprises specific monomer units and has a number average molecular weight (Mn) between 300,000 to 2,000,000, making it a versatile option for various industrial applications.
Career Highlights
Kazufumi Kai has had a distinguished career, contributing to renowned companies including Showa Denko K.K. and Riken Corporation. His extensive experience in these organizations has enriched his knowledge and expertise in materials science, further facilitating his innovative endeavors.
Collaborations
Throughout his career, Kazufumi has had the privilege of collaborating with talented coworkers such as Keisuke Ohta and Hiroshi Uchida. These professional relationships have undoubtedly fostered a dynamic exchange of ideas, leading to significant advancements in their respective fields.
Conclusion
Kazufumi Kai stands out as an influential inventor whose contributions to materials science have helped revolutionize technologies in display devices and polymers. His dedication to innovation and collaboration has paved the way for advancements that promise to shape the future of numerous industries.
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.