Company Filing History:
3 out of 4,924 
3 out of 32 Years Active: 2010-2013
Title: Tomoyuki Hasegawa: A Pioneer in Composite Electronic Parts
Introduction
Tomoyuki Hasegawa, an innovative inventor based in Saku, Japan, has made remarkable contributions to the field of electronic materials. With a record of three patents, he has focused on the development of composite electronic parts and ceramic multilayer substrates, showcasing his expertise in materials science.
Latest Patents
One of Hasegawa's latest patents revolves around a composite electronic part that integrates magnetic and dielectric materials, co-sintered at temperatures of 1000°C or lower. This inventive part features a magnetic material that consists of a ferrite with specific molar percentages of FeO, ZnO, CuO, and NiO. Additionally, the dielectric material boasts a high dielectric constant of 1000 or higher, composed of a barium titanate-based component with specific weight parts of CuO and BiO.
Another significant patent involves a ceramic multilayer substrate formed by co-sintering insulating materials with both low and high dielectric constants. The substrate features a low dielectric constant layer that comprises a ceramic component with precise molar ratios of BaO, TiO, and ZnO, along with a glass component containing boron oxide. The high dielectric layer is also based on barium titanate, enriched with CuO and BiO.
Career Highlights
Hasegawa has gained valuable experience by working with notable companies such as NGK Insulators, Inc. and Soshin Electric Co., Ltd. His professional journey has undoubtedly enriched his understanding of electronic components, further enhancing his inventive capabilities.
Collaborations
Throughout his career, Hasegawa has collaborated with esteemed colleagues, including Tadashi Otagiri and Yoshinori Ide. These partnerships have likely contributed to his innovative approach to material science and the successful development of his patented inventions.
Conclusion
In summary, Tomoyuki Hasegawa stands out as a prominent inventor in the realm of composite electronic parts and ceramic substrates. His dedication to advancing materials technology continues to position him at the forefront of innovation in this crucial industry.