Location History:
- Tochigi, JP (1989)
- Moka City, JP (1994)
- Moka, JP (1991 - 2006)
Company Filing History:
18 out of 51,907 
6 out of 35 
1 out of 5,120 
Years Active: 1989-2006
Title: **Hiromi Ishida: Innovator in Polycarbonate Technology**
Introduction
Hiromi Ishida is a prominent inventor hailing from Moka, Japan, known for his significant contributions to the field of polycarbonate materials. With an impressive portfolio comprising 25 patents, Ishida has pioneered advancements that enhance the properties and applications of polycarbonates.
Latest Patents
Ishida's latest innovations include a patent for a polycarbonate composition and method of making it. This composition incorporates ionic species such as chloride, sulfate, and phosphate, in varying amounts, alongside organic compounds like phenol and aromatic dihydroxy compounds. The resulting polycarbonate features a weight average molecular weight ranging from about 40,000 to 90,000 daltons, demonstrating specific melt volume rates.
Another key patent focuses on the preparation of polycarbonate with reduced levels of Fries content. This method results in a polycarbonate composition that maintains low Fries levels (between 5 ppm and 360 ppm), achieved through a melt process. The resultant polycarbonate exhibits excellent ductility and impact strength, making it ideal for applications such as optical disks that require resistance to bending.
Career Highlights
Throughout his career, Hiromi Ishida has worked with notable companies including General Electric Company and GE Plastics Japan Ltd. His expertise in materials science and engineering has established him as a leading figure in polycarbonate research and development.
Collaborations
Ishida has collaborated with esteemed colleagues, including Hidekazu Kabaya and Masataka Morioka, contributing to the enhancement of polycarbonate technologies. These collaborations have facilitated knowledge sharing and innovative thinking, leading to successful patent developments.
Conclusion
Hiromi Ishida’s contributions to the polycarbonate sector reflect his dedication to innovation and excellence. Through his numerous patents and collaborations, he continues to influence the materials industry, paving the way for future advancements in polycarbonate applications.