Location History:
- Sakai, JP (2001)
- Osaka, JP (2001)
Company Filing History:
Years Active: 2001
Title: Innovations of Yoshimasa Yabu
Introduction
Yoshimasa Yabu is a notable inventor based in Sakai, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of ignition apparatuses and multilayer ceramic capacitors. With a total of 2 patents, Yabu's work reflects a commitment to advancing technology in practical applications.
Latest Patents
Yabu's latest patents include an innovative ignition apparatus designed for gasoline engines of the independent cylinder type. This apparatus utilizes low-voltage wiring and eliminates the need for a distributor by employing a Capacitor Discharge Ignitor (CDI) to enhance the ignition characteristics of lean mixtures. The design incorporates a transformer with a primary winding connected in parallel to a capacitor, which is linked to a DC power supply. The switching element features an Insulated Gate Bipolar Transistor (IGBT) and a diode arranged in parallel.
Another significant patent is for a multilayer ceramic capacitor. This invention features alternating layers of electrode metal and dielectric ceramic, with a dielectric constant peak occurring at temperatures below -50°C. The capacitor is designed to withstand an electric field of at least 200 V/mm, making it suitable for high-frequency applications. The dielectric ceramic used contains lead atoms measured in the form of PbO, with a concentration of at least 30 mol%. This innovation aims to provide an inexpensive, large-capacity multilayer capacitor that offers thermal resistance and stability under high DC bias voltage and high-frequency voltage conditions.
Career Highlights
Yoshimasa Yabu is associated with Matsushita Electric Industrial Co., Ltd., a company renowned for its contributions to electronics and electrical engineering. His work at Matsushita has allowed him to focus on developing cutting-edge technologies that enhance the performance and efficiency of electrical components.
Collaborations
Yabu has collaborated with notable coworkers, including Tatsuo Maeoka and Junichi Kato. Their combined expertise has contributed to the successful development of innovative technologies in their respective fields.
Conclusion
Yoshimasa Yabu's contributions to the field of electrical engineering through his patents demonstrate his innovative spirit and dedication to advancing technology. His work continues to influence the development of efficient electrical components, showcasing the importance of innovation in engineering.