This inventor holds 2 USPTO granted patents. Top assignees: Hitachi, Ltd., Space Communications Research Corporation. Active years: 1987-1993.
Company Filing History:
2 out of 42,719 
1 out of 1 Years Active: 1987-1993
Title: Haruhiko Funaki: Innovator in High-Frequency Power Amplifiers
Introduction
Haruhiko Funaki is a notable inventor based in Tanashi, Japan. He has made significant contributions to the field of electronics, particularly in the development of high-frequency power amplifiers. With a total of 2 patents, Funaki's work has had a considerable impact on the industry.
Latest Patents
One of Funaki's latest patents is a high-frequency power amplifier. This innovative device comprises a pair of FETs, a divider that supplies opposite-phase versions of a signal to be amplified, and distributed-parameter transmission lines connected to the output electrodes of the FETs. The design includes a combiner that merges signals from the transmission lines into a common phase. Additionally, stubs are connected to the transmission lines to short-circuit even harmonics in the output signals. Capacitors are strategically placed to ensure impedance matching and optimize performance.
Another significant patent is a microwave solid-state amplifier. This amplifier utilizes multiple units in combination with a radial cavity resonator for power dividing and combining. The design allows for wide-band operation with minimal circuit loss. A unique coupling portion is formed to facilitate the connection between the cavity resonator and the amplifier units, enhancing the overall efficiency of the device.
Career Highlights
Throughout his career, Haruhiko Funaki has worked with prominent companies such as Hitachi, Ltd. and Space Communications Research Corporation. His experience in these organizations has contributed to his expertise in the field of electronics and amplifier technology.
Collaborations
Funaki has collaborated with notable colleagues, including Kenji Sekine and Nobuo Masuda. These partnerships have likely fostered innovation and the exchange of ideas in their respective projects.
Conclusion
Haruhiko Funaki's contributions to high-frequency power amplifiers and microwave solid-state amplifiers demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology in the electronics field.