Location History:
- Yamaguchi, JP (2003 - 2004)
- Iwakuni, JP (1998 - 2008)
Company Filing History:
Years Active: 1998-2008
Title: The Innovative Contributions of Toyoaki Ishiwata
Introduction
Toyoaki Ishiwata, an accomplished inventor hailing from Iwakuni, Japan, has made significant strides in the field of polymer technology. With a remarkable portfolio that includes seven patents, Ishiwata's innovations showcase his expertise and commitment to advancing materials science.
Latest Patents
Among Ishiwata's latest patents are two groundbreaking inventions:
1. **Polymetaphenylene Isophthalamide-Based Polymer Porous Film, Process for its Production and Battery Separator**
This invention features a polymetaphenylene isophthalamide-based polymer porous film that demonstrates a highly satisfactory porous structure, characterized by excellent gas permeability and heat resistance. The production process involves casting a dope of the polymer and coagulating it in a specific bath. Notably, the porous film can incorporate inorganic whiskers and may form a composite film with a distinct thermoplastic polymer film.
2. **Wholly Aromatic Polyester Carbonate and Process Therefor**
This invention pertains to a wholly aromatic polyester carbonate known for its good color and exceptional heat-resistant stability. The polymer is produced by reacting an aromatic dicarboxylic acid, aromatic diol, and diaryl carbonate in a precise molar ratio, utilizing a pyridine-based compound as a catalyst to achieve remarkably low alkali metal content of 10 ppm or less.
Career Highlights
Toyoaki Ishiwata is currently employed at Teijin Limited, a leading company in advanced materials. His dedication to innovation and exemplary skills in polymer science have positioned him as a valuable asset within the organization, contributing to numerous advancements in polymer technology.
Collaborations
Throughout his career, Ishiwata has collaborated with notable colleagues such as Shunichi Matsumura and Jiro Sadanobu. Their joint efforts illustrate the dynamic teamwork that often leads to groundbreaking developments in the field of material science.
Conclusion
Toyoaki Ishiwata's contributions to the world of polymer technology epitomize the spirit of innovation. With a strong focus on creating materials that exhibit superior properties, his work continues to influence various applications and open new avenues in the realm of polymer science. Through his patents, Ishiwata has undoubtedly left an indelible mark on the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.