Location History:
- Yokohama, JA (1977 - 1978)
- Yokohama, JP (1978 - 1983)
Company Filing History:
6 out of 42,508 
3 out of 522 Years Active: 1977-1983
Title: Tetsuo Takeshita: Innovator in Current Supplying Circuits
Introduction
Tetsuo Takeshita is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of current supplying circuits. With a total of 6 patents to his name, his work has had a lasting impact on telecommunications technology.
Latest Patents
One of Takeshita's latest inventions is a current supplying circuit with a shorted-to-ground fault detecting function. This invention relates to a current supplying circuit that provides current to a terminal apparatus through a ring line and a tip line connected to a potential source and ground via resistance elements. The circuit includes detectors that generate detection signals proportional to the currents in the ring and tip lines. A comparator then analyzes these signals to detect any shorted-to-ground faults, ensuring the circuit is protected from breakdown.
Another significant patent is the loop detecting circuit, which identifies a closed loop formed by the actuation of a telephone set. This loop indicates a connection between the telephone set and an exchange through the ring and tip lines. The detecting circuit generates detection signals proportional to the ring and tip line currents, sums these signals, and compares them to a reference value to deliver an output based on the comparison results.
Career Highlights
Throughout his career, Tetsuo Takeshita has worked with prominent companies such as Hitachi, Ltd. and Nippon Telegraph and Telephone Public Corporation. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in the telecommunications sector.
Collaborations
Takeshita has collaborated with notable coworkers, including Takuji Mukaemachi and Junjiro Kitano. Their combined expertise has likely fostered advancements in their respective fields.
Conclusion
Tetsuo Takeshita's contributions to current supplying circuits and telecommunications technology are commendable. His innovative patents and career achievements reflect his dedication to advancing electrical engineering. His work continues to influence the industry and inspire future inventors.