Location History:
- Oora, JP (1980)
- Gunma, JP (1981 - 1998)
- Moriguchi, JP (1998)
- Ota, JP (1998 - 1999)
- Ohta, JP (1999)
- Oota, JP (2001)
Company Filing History:
11 out of 8,780 
2 out of 68 Years Active: 1980-2001
Title: The Innovations of Toshiyuki Ozawa
Introduction
Toshiyuki Ozawa is a prominent inventor based in Ota, Japan. He has made significant contributions to the field of electronics, particularly in the development of synthesizer circuits and signal processing devices. With a total of 11 patents to his name, Ozawa's work has had a lasting impact on technology.
Latest Patents
One of his latest patents is a PLL synthesizer circuit designed for frequency change. This innovative circuit controls the voltage-controlled oscillator (VCO) through a sub-charge pump circuit. It determines whether the difference in dividing data before and after a frequency change is within a predetermined range. If the difference exceeds this range, the loop filter is forcibly charged based on the proportional difference in the dividing data, allowing for swift control of the VCO's oscillation frequency. This design enables a rapid change in oscillation frequency, enhancing performance.
Another notable patent is for an FM radio receiver and signal processing device. This device demodulates superimposed FM data into digital data. A synchronism reproducing circuit detects the front of data blocks, generating a block head signal that is sent to a microcomputer's control section. When a station change is requested, the control section outputs station change data to a PLL frequency synthesizer, ensuring that the frequency signal is adjusted promptly. This innovation prevents the reception of non-good data during station changes.
Career Highlights
Throughout his career, Toshiyuki Ozawa has worked with several notable companies, including Sanyo Electric Co., Ltd. and Tokyo Sanyo Electric Co. His experience in these organizations has contributed to his expertise in electronic innovations.
Collaborations
Ozawa has collaborated with talented individuals such as Kazuhiro Kimura and Shigeaki Hayashibe. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Toshiyuki Ozawa's contributions to the field of electronics through his innovative patents and collaborations have significantly advanced technology. His work continues to influence the industry and inspire future inventors.