Company Filing History:
7 out of 340 
4 out of 178 
2 out of 16 Years Active: 2008-2025
Title: Innovations of Kohei Fujii
Introduction
Kohei Fujii is a prominent inventor based in San Jose, California, known for his significant contributions to the field of integrated amplifiers and millimeter-wave packaging. With a total of 12 patents to his name, Fujii has made remarkable advancements in technology that enhance the performance and reliability of electronic devices.
Latest Patents
Fujii's latest patents include a high voltage stacked transistor amplifier, which describes various aspects of integrated amplifiers, layouts, and packaged arrangements. This innovative amplifier includes an amplifier cell and a biasing network coupled to a common gate transistor. The design features a cascode arrangement of a common source transistor and a common gate transistor, with at least one of these transistors incorporating a field plate. This configuration allows the amplifiers to be biased with relatively high voltages while maintaining the operational characteristics of a single common source transistor, thus ensuring reliability and performance without the need for additional off-chip components. Another notable patent is the flange mount millimeter-wave package, which details a package for a flange mount device. This package consists of a thermally conductive base, a base substrate, and a lid with a cavity. The design facilitates the integration of various components, including biasing, blocking, and bypassing components, as well as impedance matching and electromagnetic shielding components.
Career Highlights
Throughout his career, Kohei Fujii has worked with leading companies in the technology sector, including Macom Technology Solutions Holdings, Inc. and Avago Technologies Wireless IP (Singapore) Pte. Ltd. His work has significantly impacted the development of advanced electronic components and systems.
Collaborations
Fujii has collaborated with notable professionals in the industry, including Michael Louis Frank and Wayne Mack Struble. These collaborations have contributed to the advancement of technology in the field of electronics.
Conclusion
Kohei Fujii's innovative work in integrated amplifiers and millimeter-wave packaging has established him as a key figure in the electronics industry. His patents reflect a commitment to enhancing device performance and reliability, making significant contributions to modern technology.