Location History:
- Sagamihara, JA (1976)
- Sagamihara, JP (1985 - 1997)
- Tokyo, JP (1991 - 1999)
Company Filing History:
22 out of 1,587 
1 out of 5 
1 out of 1 
Years Active: 1976-1999
Title: **Masahiro Hosoi: Innovator in Polyester Films**
Introduction
Masahiro Hosoi, an esteemed inventor based in Tokyo, Japan, holds an impressive portfolio of 22 patents. His contributions to the field of materials science, particularly in the development of advanced polyester films, have significantly influenced various industries, including electronics and packaging.
Latest Patents
Among his latest patents are notable innovations such as the **Biaxially Oriented Polyethylene-2, 6-Naphthalate Film** and the **Biaxially Oriented Polyester Film**. The former is engineered for its applicability in magnetic recording media, exhibiting a Young's modulus of at least 550 kg/mm² longitudinally and over 800 kg/mm² transversely, with enhanced properties for heat resistance and surface roughness ranging from 1 to 12 nm. Additionally, it contains fine particles that improve its performance. The latter patent focuses on a polyester film that possesses excellent resistance to both dry and wet heat deterioration, making it useful in high-moisture environments. This film incorporates ethylene-2,6-naphthalenedicarboxylate as its primary unit and boasts a high density along with a controlled level of oligomers, ensuring superior functionality in various applications.
Career Highlights
In his impressive career, Masahiro Hosoi has worked with reputable organizations like Teijin Limited and the Agency of Industrial Science. His experience in these companies emphasizes his role in advancing polyester technology and materials innovation.
Collaborations
Throughout his career, Hosoi has collaborated with notable coworkers including Yasuhiro Saeki and Hisashi Hamano, contributing to the innovation landscape within their respective fields. Their joint efforts have played a crucial role in enhancing performance characteristics of polyester films and related materials.
Conclusion
Masahiro Hosoi's dedication to innovation in polyester film technology exemplifies the impact that inventors can have on industry standards and practices. With his extensive patent portfolio and collaborations with esteemed colleagues, he continues to push the boundaries of material science, paving the way for future advancements in this critical domain.