Company Filing History:
5 out of 103 
3 out of 11 
1 out of 91 
Years Active: 1996-2010
Title: The Innovative Contributions of Yasuyuki Kawashima
Introduction: Yasuyuki Kawashima, an esteemed inventor based in Sagamihara, Japan, has made significant strides in the field of glass materials with a focus on crystallized glass and glass-ceramics. With a remarkable portfolio of nine patents, Kawashima's work addresses critical challenges in material stability and efficiency in production.
Latest Patents: Among his latest innovations, Kawashima's patents include a method for producing crystallized glass. This advanced glass showcases a SiO₂-Al₂O₃-based or Li₂O-Al₂O₃-SiO₂-based formulation that effectively mitigates cracking and fracturing issues when creating large-sized articles. This patent highlights the homogeneous inner quality and the high-efficiency production method that it offers. The crystallized glass comprises SiO₂ and Al₂O₃ components, with specific thermal analysis characteristics crucial for its performance.
Additionally, Kawashima has developed glass-ceramics suitable as light filters. This innovative glass-ceramic features a Young's modulus within a range of 95 to 120 GPa and encompasses a specified composition of aluminum oxide (Al₂O₃), zirconium oxide (ZrO₂), and silicon dioxide (SiO₂). The predominant crystal phases include lithium disilicate and quartz phases, crucial for its application in light filtering while maintaining a precise specific gravity and thermal expansion coefficient.
Career Highlights: Kawashima has worked with esteemed companies, including Kabushiki Kaisha Ohara, where he honed his skills and contributed to various groundbreaking projects. His dedication to innovation in the field of materials science is evident through his consistent progression toward advanced glass technology.
Collaborations: Collaborating with talented individuals like Naoyuki Goto and Junko Ishioka, Kawashima has been able to enhance his research output, leading to impactful inventions that continue to benefit the industry. The collective expertise and vision shared among this team have propelled advancements in glazing technology.
Conclusion: Yasuyuki Kawashima stands as a prominent figure in the realm of material innovation, with his extensive patents reflecting a commitment to solving complex problems within the glass industry. His inventions in crystallized glass and glass ceramics demonstrate not only his inventive prowess but also his contributions to enhancing material stability and efficiency. As the industry continues to evolve, Kawashima's work will undoubtedly remain influential in shaping the future of glass technology.