Location History:
- Sendai, JP (1992)
- Kagoshima, JP (1995)
Company Filing History:
3 out of 39,237 
2 out of 36 Years Active: 1992-1995
Title: Innovations of Toshiyuki Koreeda
Introduction
Toshiyuki Koreeda is a notable inventor based in Sendai, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work focuses on enhancing the performance and reliability of integrated circuits.
Latest Patents
One of his latest patents is a semiconductor integrated circuit device designed for converting PECL signals. This device features a first ground connected to a first circuit, which is susceptible to noise, and a second ground connected to a second circuit that provides a stable output. The invention includes a fluctuation detecting unit that identifies fluctuations in the first ground's level and a level controlling unit that adjusts the output of the second circuit to mitigate these fluctuations. This innovation effectively reduces noise interference and prevents malfunctions.
Another significant patent by Koreeda is a Bi-CMOS logic circuit that offers full voltage swing and rapid turn-off capabilities. This circuit comprises two bipolar transistors connected in series, with an output signal drawn from their connection node. It also includes impedance elements and MOS transistors that enhance the circuit's performance. This design allows for efficient signal processing and improved operational speed.
Career Highlights
Throughout his career, Toshiyuki Koreeda has worked with prominent companies such as Fujitsu Corporation and Kyushu Fujitsu Electronics Limited. His experience in these organizations has contributed to his expertise in semiconductor technology and circuit design.
Collaborations
Koreeda has collaborated with notable colleagues, including Toru Nakamura and Shinzou Satou. These partnerships have likely fostered innovation and the exchange of ideas in their respective fields.
Conclusion
Toshiyuki Koreeda's contributions to semiconductor technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements in integrated circuit design and performance.