Location History:
- Chiba, JP (2011 - 2019)
- Konan, JP (2016 - 2021)
- Tokyo, JP (2019 - 2024)
Company Filing History:
Years Active: 2011-2024
Title: Innovations by Inventor Tadakazu Ishiwata
Introduction
Tadakazu Ishiwata, an accomplished inventor based in Chiba, Japan, holds an impressive portfolio of 14 patents. His work primarily focuses on the development of advanced films and materials which have significant applications in various industries.
Latest Patents
Among his remarkable contributions are the patents for biaxially stretched polypropylene film, metallized film, metallized film roll, and film capacitors. One notable patent describes a biaxially stretched polypropylene film with a thickness ranging from 1.0 μm to 3.5 μm. This film boasts a tensile fracture stress at 135° C. of 70 MPa or more, with specific limits on the tensile fracture stress differentials between varying temperatures. Additionally, he developed a polypropylene film designed to suppress blocking when rolled, featuring finely detailed surface characteristics such as Svk and Spk values that ensure its functional efficacy.
Career Highlights
Tadakazu Ishiwata has made significant strides during his career at prominent companies like Oji Holdings Corporation and Oji Paper Co., Ltd. His work at these institutions has been pivotal in propelling the innovations in packaging materials and films, contributing to the modernization of industry standards.
Collaborations
Throughout his journey, Ishiwata has collaborated with talented individuals in the field, including coworkers Masahiro Nakata and Yoshimune Okuyama. These collaborations have fostered an environment of creativity and technical advancement, enabling the development of impactful inventions.
Conclusion
In conclusion, Tadakazu Ishiwata’s contributions to the field of materials science, specifically in polypropylene and metallized films, showcase his innovative spirit and technical prowess. His patents not only reflect his expertise but also serve as a foundation for future advancements in 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.