Location History:
- Sagamihara, JP (1993 - 1997)
- Kitakyushu, JP (1998)
Company Filing History:
3 out of 2,351 
1 out of 499 Years Active: 1993-1998
Title: Kazuo Shirosaki: Innovator in Carbon Fiber Technology
Introduction
Kazuo Shirosaki is a prominent inventor based in Sagamihara, Japan. He has made significant contributions to the field of carbon fiber technology, holding a total of 4 patents. His work focuses on developing advanced materials with exceptional properties, particularly in thermal conductivity and mechanical strength.
Latest Patents
Shirosaki's latest patents include innovative advancements in pitch-based carbon fibers. One notable patent describes a pitch-based carbon fiber that exhibits a thermal conductivity ranging from 500 to 1,500 W/m·K, a tensile modulus of at least 85 ton/mm², and a compression strength of at least 35 kg/mm². This fiber is characterized by a laminated layer thickness of graphite crystallites between 30 to 50 nm, and a ratio of spread in the direction of the layer plane of at least 1.5. The fiber demonstrates high thermal conductivity, excellent compression strength, and a remarkable tensile modulus of elasticity. Another patent focuses on pitch-type carbon fibers produced from a specific pitch with a glass transition temperature width of at most 40°C, a minimum of 10% optically anisotropic phase by volume, and a quinoline-insoluble content of no more than 5% by weight.
Career Highlights
Throughout his career, Kazuo Shirosaki has worked with leading companies in the chemical industry, including Mitsubishi Chemical Corporation and Mitsubishi Kasei Corporation. His experience in these organizations has allowed him to refine his expertise in material science and innovation.
Collaborations
Shirosaki has collaborated with notable professionals in his field, including Iwao Yamamoto and Akihiko Yoshiya. These partnerships have contributed to the advancement of carbon fiber technology and the successful development of his patented inventions.
Conclusion
Kazuo Shirosaki's contributions to carbon fiber technology have established him as a key figure in the field. His innovative patents reflect his commitment to advancing material science and enhancing the performance of carbon fibers.