Company Filing History:
4 out of 6,656 
1 out of 5 Years Active: 2017-2018
Title: Innovations of Youji Seki in All-Solid-State Capacitors
Introduction
Youji Seki is a notable inventor based in Kagoshima, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of all-solid-state capacitors. With a total of 4 patents to his name, Seki's work has advanced the technology of energy storage devices.
Latest Patents
One of Seki's latest patents is focused on an all-solid-state capacitor that utilizes a solid electrolyte with a polycrystalline structure. This innovative capacitor boasts high capacitance and excellent frequency characteristics, making it compact and efficient. The design includes an inorganic solid electrolyte and a pair of current collectors that hold the electrolyte in place. The inorganic solid electrolyte features a perovskite crystal structure, which is defined by a general formula, ABO. The A-site elements consist of lithium and another element from Group 2 of the Periodic Table, while the B-site elements include titanium and another element from Group 5.
Another patent by Seki also pertains to all-solid-state capacitors, emphasizing the use of an inorganic solid electrolyte interposed between current collectors. This design incorporates a polycrystalline structure composed of crystal particles and grain boundaries. Notably, the size of domains near the grain boundaries is larger than those located at the center of the crystal particles, which enhances the performance of the capacitor.
Career Highlights
Throughout his career, Youji Seki has worked with prominent companies such as Kyocera Corporation and Energy Storage Materials LLC. His experience in these organizations has contributed to his expertise in the field of energy storage technologies.
Collaborations
Seki has collaborated with notable colleagues, including Seiichirou Hirahara and Tomoyuki Ono. These partnerships have likely fostered innovation and development in his projects.
Conclusion
Youji Seki's contributions to the field of all-solid-state capacitors demonstrate his commitment to advancing energy storage technology. His innovative designs and collaborations have positioned him as a significant figure in the industry.