Company Filing History:
1 out of 27,375 
1 out of 1 Years Active: 1989
Title: Hirohiko Itoh – Innovator of Solid Electrolytic Capacitors
Introduction
Hirohiko Itoh is a distinguished inventor hailing from Nagoya, Japan, known for his significant contributions to the field of electronics. With a focus on enhancing the performance and reliability of capacitors, Itoh has made noteworthy advancements in this essential component of electronic systems.
Latest Patents
Itoh holds a patent for a solid electrolytic capacitor, which demonstrates his innovative approach. The invention details a unique construction comprising a first electrode made of valve action metal, which is covered on one side by an anodic oxidation film. The second electrode is positioned opposite this anodic film, and the layer of solid electrolyte interposed between the two electrodes includes a specially formulated salt of 7,7,8,8-tetracyanoquinodimethane. This formulation incorporates a cation chosen from quinoline or isoquinoline, which has been modified by quaternization with fluorinated alkyl groups. This invention not only improves reliability under high temperature but also increases capacitance and minimizes the release of toxic gases during pyrolysis.
Career Highlights
Throughout his career, Itoh has been associated with several prominent companies, including Matsushita Electric Industrial Co., Ltd. and Takomoto Oil & Fat Co., Ltd. His experience in these organizations has contributed significantly to his understanding and development of capacitor technologies.
Collaborations
Hirohiko Itoh has worked alongside esteemed colleagues such as Sohji Tsuchiya and Toshikuni Kojima. Their collaboration reflects a shared dedication to pushing the boundaries of electronic components and improving their functionalities.
Conclusion
Hirohiko Itoh’s innovative spirit and his patent for a solid electrolytic capacitor showcase his pivotal role in the evolution of electronic components. His efforts in improving reliability and performance not only reflect his technical prowess but also his commitment to fostering advancements in the field. As the electronics landscape continues to evolve, contributions from inventors like Itoh will undoubtedly play a crucial part in shaping future innovations.