Company Filing History:
Years Active: 2006
Title: Kunio Oka: Innovator in SiC Fiber Production
Introduction
Kunio Oka is a notable inventor based in Sakai, Japan. He has made significant contributions to the field of materials science, particularly in the production of silicon carbide (SiC) fibers. His innovative approach has implications for various applications, including composite materials that require enhanced toughness and heat resistance.
Latest Patents
Kunio Oka holds a patent for a process for producing reinforcing SiC fiber for SiC composite material. The patent describes a method where a mixed polymer liquid is prepared by combining a polycarbosilane-dissolved organic solvent with poly(methylsilane). This mixture is moderated to a viscosity of 5–20 Pa·s through heat treatment, promoting a partial cross-linking reaction. The mixed polymer is then melt-spun into fiber at temperatures between 250–350°C. The fiber undergoes curing at 100–200°C in an oxidizing atmosphere and is subsequently baked at 1000°C or higher. This innovative process allows for continuous melt-spinning of the SiC fiber without breakage, resulting in a material that is useful for reinforcing SiC composites, which exhibit excellent toughness, strength, and heat resistance.
Career Highlights
Kunio Oka is associated with the Japan Science and Technology Corporation, where he has been able to apply his expertise in materials science. His work has led to advancements in the production of high-performance fibers, contributing to the development of stronger and more resilient composite materials.
Collaborations
Kunio Oka has collaborated with notable colleagues, including Kiyohito Okamura and Masaki Narisawa. These collaborations have further enhanced the research and development efforts in the field of SiC fiber production.
Conclusion
Kunio Oka's innovative work in the production of SiC fibers represents a significant advancement in materials science. His patented process not only improves the manufacturing of these fibers but also contributes to the development of high-performance composite materials.