Location History:
- Minami-ashigara, JP (1991 - 2004)
- Odawara, JP (2007 - 2011)
- Kanagawa, JP (1986 - 2012)
Company Filing History:
26 out of 16,458 
12 out of 16,115 
Years Active: 1986-2012
Title: Katsuyoshi Yamakawa: Innovator in Near-Infrared Technology
Introduction
Katsuyoshi Yamakawa is a notable inventor based in Kanagawa, Japan. With 38 patents to his name, he has made significant contributions within the field of materials science, particularly focusing on near-infrared absorbing materials.
Latest Patents
Yamakawa's most recent patents showcase his expertise in creating advanced near-infrared absorbing materials. One such invention provides a near-infrared absorbing material that includes at least one singlet oxygen scavenger, at least one radical scavenger, and at least one antioxidant, along with a near-infrared absorbing compound derived from a specific oxidation process of a designated formula. Another patent involves a near-infrared absorbing material that features a luminescent agent and a similar near-infrared absorbing compound, emphasizing the versatility and innovative properties of the materials he develops.
Career Highlights
Throughout his career, Katsuyoshi Yamakawa has been associated with prominent companies, including Fuji Photo Film Company, Limited, and Fujifilm Corporation. His experience in these established organizations has undoubtedly contributed to his development of innovative materials and technologies.
Collaborations
Yamakawa has collaborated with talented professionals, including Tadahisa Sato and Keizo Kimura, who have likely played significant roles in advancing his research and patent development. These collaborations have enriched his projects and led to substantial advancements in their respective fields.
Conclusion
Katsuyoshi Yamakawa exemplifies the spirit of innovation in the realm of materials science, particularly with his focus on near-infrared absorbing technologies. His extensive patent portfolio reflects both his ingenuity and commitment to improving material properties for various applications. As he continues to push the boundaries of research and development, his contributions will undoubtedly have a lasting impact on the industry.