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For the Inventor, By the Inventor

Ota, Japan

Toshiyuki Ozawa

This inventor holds 11 USPTO granted patents. Top assignees: Sanyo Electric Co., Ltd., Tokyo Sanyo Electric Co.. Active years: 1980-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiyuki Ozawa. Retrieved from https://idiyas.com/inventor/toshiyuki-ozawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 5

Forward Citations = 67(Granted Patents)


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:

goldMedal11 out of 8,782 
 
Sanyo Electric Co., Ltd.
 patents
silverMedal2 out of 69 
 
Tokyo Sanyo Electric Co.
 patents
where one patent can have more than one assignee

Years Active: 1980-2001

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11 patents (USPTO):Explore Patents
1. 6288583 - PLL synthesizer circuit (2001-09-11),
2. 5960328 - FM radio receiver and signal processing device used therein (1999-09-28),
3. 5938746 - System for prioritizing slave input register to receive data (1999-08-17),
4. 5835499 - Data processing device for FM multi-channel broadcasting (1998-11-10),
5. 5825888 - Descrambling device (1998-10-20),
6. 5802067 - FM multiplex broadcast receiving circuit for detecting presence or (1998-09-01),
7. 5784462 - Digital signal receiver capable of receiving data encrypted and (1998-07-21),
8. 5757825 - Digital signal processing for controlling error correction based on the (1998-05-26),
9. 5752176 - FM radio receiver and signal processing device used therein (1998-05-12),
10. 4281259 - Digital phase comparing apparatus (1981-07-28),
11. 4198605 - Channel selecting apparatus in a receiver (1980-04-15),

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.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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