This inventor holds 5 USPTO granted patents. Top assignees: Sanyo Electric Co., Ltd., Sanyo Electronic Components Co., Ltd., Other. Active years: 2000-2002.
Company Filing History:
3 out of 8,782 
2 out of 12 
2 out of 834,350 Years Active: 2000-2002
Title: Youichi Kojima: Innovator in Solid Electrolyte Capacitors
Introduction
Youichi Kojima is a notable inventor based in Daito, Japan. He has made significant contributions to the field of solid electrolyte capacitors, holding a total of 5 patents. His work focuses on improving the efficiency and performance of capacitors, which are essential components in various electronic devices.
Latest Patents
Kojima's latest patents include innovative processes for producing solid electrolyte capacitors. One of his inventions relates to decreasing the contact resistance between the capacitor body and lead frames, as well as reducing the internal resistance of these components. This process involves forming a dielectric oxide film on an anode body of valve metal, followed by creating a cathode layer of solid conductive substance. The capacitor element is then coated with a carbon layer and a silver paste layer, ultimately bonding a lead frame to the capacitor body using a silver adhesive. Additionally, he has developed a method for forming a second cathode layer of conductive high polymer through electrolytic oxidative polymerization, enhancing the overall performance of the capacitors.
Career Highlights
Throughout his career, Kojima has worked with prominent companies, including Sanyo Electric Co., Ltd. His experience in the industry has allowed him to refine his inventions and contribute to advancements in capacitor technology.
Collaborations
Kojima has collaborated with notable coworkers such as Hidenori Kamigawa and Takeshi Takamatsu. Their combined expertise has likely played a role in the successful development of his innovative patents.
Conclusion
Youichi Kojima's contributions to the field of solid electrolyte capacitors demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of capacitor technology and its applications in modern electronics.