This inventor holds 3 USPTO granted patents and 2 published patent applications and 1 EPO patent. Top assignee: Alps Electric Co., Ltd.. Active years: 2000-2011.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2000-2011
Title: Tsutomu Kunishima: Innovator in Amplification Circuits and Television Technology
Introduction
Tsutomu Kunishima is a notable inventor based in Miyagi, Japan. He has made significant contributions to the field of electronics, particularly in amplification circuits and television technology. With a total of 3 patents to his name, Kunishima's work has had a lasting impact on the industry.
Latest Patents
One of Kunishima's latest patents is an amplification circuit that includes a semiconductor amplification element. This circuit features a current feedback circuit connected to a terminal close to the ground side of the semiconductor amplification element, allowing for gain reduction control. Additionally, it incorporates a voltage feedback circuit that connects between the input and output terminals of the semiconductor amplification element, enabling feedback voltage control. The feedback voltage can be varied according to the gain reduction controlled by the current feedback circuit.
Another significant patent is for a television tuner designed to suppress the influence of analog signals when receiving digital signals. This invention includes a high-frequency amplifier for amplifying television signals, a mixer for frequency conversion into intermediate frequency signals, and a SAW filter for selecting intra-range intermediate frequency signals. Furthermore, it features an intermediate frequency amplifier and wide band detecting means to control the gain of the high-frequency amplifier.
Career Highlights
Kunishima is currently employed at Alps Electric Co., Ltd., a company known for its innovative electronic components. His work at Alps Electric has allowed him to develop cutting-edge technologies that enhance the performance of electronic devices.
Collaborations
Throughout his career, Kunishima has collaborated with various professionals in the field. One notable coworker is Akira Takayama, with whom he has worked on several projects that have contributed to advancements in electronics.
Conclusion
Tsutomu Kunishima is a distinguished inventor whose work in amplification circuits and television technology has made a significant impact on the electronics industry. His innovative patents continue to influence the development of modern electronic devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile