Location History:
- Nakajyo, JP (1983)
- Nakajo, JP (1985)
- Chuo-ku, JP (2000)
Company Filing History:
3 out of 53 
1 out of 20 Years Active: 1983-2000
Title: Seiji Kojima: Innovator in Activated Clay and Recording Paper Technologies
Introduction
Seiji Kojima, an accomplished inventor based in Nakajo, Japan, holds an impressive portfolio of four patents. His innovative contributions primarily focus on the refinement of aromatic hydrocarbons and advancements in heat-sensitive recording paper technologies. Kojima's work demonstrates a profound understanding of materials science and the practical applications of his inventions.
Latest Patents
One of Kojima's latest inventions is a method of producing activated clay specifically designed for treating aromatic hydrocarbons like benzene, toluene, and xylene (collectively known as BTX). This activated clay not only excels in longevity but also plays a significant role in preventing undesirable side reactions during the refining process. The clay is produced by treating dioctahedral smectite clay minerals with acid to attain a BET specific surface area of at least 250 m²/g and to ensure an iron content of no less than 2.5% by weight calculated as Fe₂O₃.
Additionally, he has developed a filler for heat-sensitive recording paper that comprises finely divided amorphous silica. This unique filler has a BET specific surface area ranging from 10 to 100 m²/g and a bulk density of 0.14 to 0.30 g/cc. The composition is engineered to ensure that secondary particles smaller than 4 microns make up at least 90% of the total particle weight, resulting in enhanced performance in preventing background coloration, improving lubricating properties, minimizing adhesion of scum, and boosting image density.
Career Highlights
Seiji Kojima has made significant strides in his career through his affiliations with notable companies in the chemical industry. He has worked with Mizusawa Industrial Chemicals Ltd. and Mizusawa Kagaku Kogyo Kabushiki Kaisha, where he further honed his skills as an innovator and inventor. His dedication to research and development helped pave the way for his valuable patents.
Collaborations
Throughout his career, Kojima has collaborated with esteemed colleagues, including Koichi Usui and Masahide Ogawa. Their teamwork has undoubtedly contributed to the successful development of innovative products and cutting-edge research in the fields in which they specialize.
Conclusion
Seiji Kojima stands out as a key figure in the realm of innovative materials, particularly in activated clay treatments and heat-sensitive recording paper advancements. His patents not only enhance the efficiency of industrial processes but also speak to his commitment to developing solutions that meet stringent requirements for various applications. With a robust portfolio and a collaborative spirit, Kojima continues to influence the industry and inspire future innovations.
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.