Location History:
- Ageo, JP (2000 - 2007)
- Saitama, JP (2001 - 2014)
Company Filing History:
Years Active: 2000-2014
Title: Junshi Yoshioka: Innovator in Electro-Deposited Copper Foil Technology
Introduction
Junshi Yoshioka is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of electro-deposited copper foil technology. With a total of 9 patents to his name, Yoshioka has been instrumental in advancing the manufacturing processes and quality of copper foils used in various applications.
Latest Patents
Yoshioka's latest patents include innovations such as a surface-treated electro-deposited copper foil and a method for manufacturing the same. This invention aims to provide a copper foil with a low profile that meets or exceeds the performance of existing products in the market. The design minimizes waviness that can affect the wiring's straight line performance. The specifications include a maximum waviness height (Wmax) of 0.05 to 0.7 μm, a maximum peak to valley height (PV) of 0.05 to 1.5 μm, and a surface roughness (Rzjis) of 0.1 to 1.0 μm.
Another notable patent involves a method for preparing a sulfuric acid-based copper electrolytic solution. This solution is designed to create an electro-deposited copper film with excellent smoothness and gloss. The preparation method utilizes a sulfonated active sulfur compound and involves an oxidation reaction to convert 3-mercapto-1-propanesulfonic acid into bis(3-sulfopropyl)disulfide.
Career Highlights
Yoshioka is currently associated with Mitsui Mining & Smelting Company, Ltd., where he continues to innovate in the field of materials science. His work has significantly impacted the quality and efficiency of copper foil production, making it more suitable for modern electronic applications.
Collaborations
Throughout his career, Yoshioka has collaborated with notable colleagues such as Makoto Dobashi and Akiko Sugimoto. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Junshi Yoshioka's contributions to the field of electro-deposited copper foil technology highlight his role as a leading inventor. His patents reflect a commitment to improving manufacturing processes and product quality. His work continues to influence the industry and pave the way for future
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.