Location History:
- Shiga, JP (1993 - 1996)
- Shiga-ken, JP (1997 - 1998)
- Osaka, JP (2015)
Company Filing History:
4 out of 882 
3 out of 232 Years Active: 1993-2015
Title: Yoshiyuki Kosaka: Innovator in Thermally Expandable Microcapsules
Introduction
Yoshiyuki Kosaka, an accomplished inventor based in Shiga, Japan, holds an impressive portfolio of seven patents. His innovations predominantly focus on thermally expandable microcapsules and foamed products, demonstrating his expertise in materials science and manufacturing processes.
Latest Patents
Kosaka's latest patents include significant advancements in thermally expandable microcapsules and masterbatches for foam molding.
1. **Thermally Expandable Microcapsule and Foam-Molded Article**: This invention features a thermally expandable microcapsule that exhibits exceptional heat resistance and a high expansion ratio. It is ideally suited for high shearing force molding processes such as kneading, calender, extrusion, and injection molding. The microcapsule comprises a polymer shell encapsulating a volatile expansion agent, with a storage elastic modulus at high temperatures that enhances its performance.
2. **Masterbatch for Foam Molding and Molded Foam**: The masterbatch developed by Kosaka incorporates a thermally expandable microcapsule within a thermoplastic resin base. This formulation enables efficient foam molding under high shear conditions, yielding visually appealing foamed products with significant expansion rates.
Career Highlights
Throughout his career, Yoshiyuki Kosaka has made significant contributions to the field of material innovation while working with notable companies, including Sekisui Chemical Co., Ltd. His experience in these advanced industries has allowed him to refine his inventions and apply them to real-world manufacturing challenges.
Collaborations
Kosaka has collaborated with esteemed colleagues, such as Tatsuo Suzuki and Susumu Tanaka. Their combined expertise has led to groundbreaking developments in their respective fields, particularly in enhancing the efficiency and quality of molded products.
Conclusion
Yoshiyuki Kosaka is a prominent figure in the realm of inventions related to thermally expandable microcapsules. His extensive research and innovative patents continue to influence the manufacturing landscape, giving rise to more efficient and effective production methods in various industries.