This inventor holds 5 USPTO granted patents. Top assignees: Hitachi-Kokusai Electric Inc., Kokusai Electric Co., Ltd.. Active years: 2002-2010.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tokyo, JP (2002 - 2005)
- Hamura, JP (2010)
- Kodaira, JP (2010)
Company Filing History:
Years Active: 2002-2010
Title: The Innovations of Takeshi Ishigami
Introduction
Takeshi Ishigami is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electronics, particularly in the development of amplifiers. With a total of 5 patents to his name, Ishigami's work has had a notable impact on the industry.
Latest Patents
Ishigami's latest patents include a feedforward amplifier and a distortion compensating amplifier. The feedforward amplifier is designed to compensate for distortion produced in an amplifier. It effectively controls the phase in a vector adjuster. This amplifier features a first variable phase shifter for varying the phase of a signal and a second variable phase shifter for adjusting the signal in distortion detection and compensation loops. The phase control portion manages the variation in phase, concentrating values toward larger or smaller directions.
The distortion compensating amplifier addresses distortion occurring in main amplifiers. It includes a first amplifying unit that detects distortion in the first main amplifier. A distortion adjusting unit subjects the detected distortion to vector adjustment. The second amplifying unit combines the main signal with the adjusted distortion and amplifies the combined signal. A combining unit then merges the amplified signals from both amplifying units.
Career Highlights
Throughout his career, Ishigami has worked with notable companies such as Hitachi Kokusai Electric Inc. and Kokusai Electric Co., Ltd. His experience in these organizations has contributed to his expertise in amplifier technology and innovation.
Collaborations
Ishigami has collaborated with several talented individuals in his field, including Kotaro Takenaga and Hiroichi Yonenaga. These collaborations have likely enriched his work and led to further advancements in his inventions.
Conclusion
Takeshi Ishigami is a distinguished inventor whose work in amplifier technology has led to several important patents. His contributions continue to influence the electronics industry, showcasing the importance of innovation in technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile