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Nippon Precision Circuits Inc.

USPTO Granted Patents = 100

% Expired Patents = 7.0

Trademarks = 1

Forward Citations = 1,482

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81 inventors (with patents filed for the assignee):

Akira Toyama (14 out of 25 patents)

Satoru Miyabe (13 out of 16 patents)

Yoshihisa Ogiwara (13 out of 13 patents)

4. Sakae Tanaka (12 out of 33 patents)

5. Yoshiaki Watanabe (12 out of 83 patents)

6. Katsuo Shirai (11 out of 11 patents)

7. Kazuhisa Oyama (10 out of 10 patents)

8. Minoru Takeda (9 out of 41 patents)

9. Kunihiko Tsukagoshi (8 out of 8 patents)

10. Eiichi Hasegawa (7 out of 7 patents)

11. Toru Matsumoto (4 out of 4 patents)

12. Naoki Ueno (4 out of 4 patents)

13. Noboru Motai (4 out of 4 patents)

14. Motohiro Yamazaki (3 out of 55 patents)

15. Yoshiaki Inada (3 out of 35 patents)

Core Competencies:

Oscillator Circuit

Digital Filter

Non-Volatile Memory

Frequency Synthesizer

Charge Pump Circuit

Amplifier

Temperature Compensated Oscillator

Delta Sigma Converter

Detection Circuits

CMOS Circuit

Ferroelectric Memory

Digital Data Processing

100 patents: Sort by Forward Citations

1. 7522190 - Image detection processing device for calculating the moments of image data (2009-04-21),

2. 7496169 - Frequency synthesizer, pulse train generation apparatus and pulse train generation method (2009-02-24),

3. 7370531 - Detection circuits, detection method and systems of measuring physical quantities (2008-05-13),

4. 7205801 - Power down circuit capable of a wide rage control signal regardless of the power supply voltage fluction (2007-04-17),

5. 7102432 - Class D amplifier (2006-09-05),

6. 7069285 - Decimation filter (2006-06-27),

7. 7046821 - Image detection processor (2006-05-16),

8. 6944113 - Method of controlling laser diode in optical disk player and circuit therefor (2005-09-13),

9. 6934324 - Zero value-detecting circuit (2005-08-23),

10. 6898105 - Ferroelectric non-volatile memory device having integral capacitor and gate electrode, and driving method of a ferroelectric non-volatile memory device (2005-05-24),

11. 6885048 - Transistor-type ferroelectric nonvolatile memory element (2005-04-26),

12. 6810091 - Digital data deinterleaver (2004-10-26),

13. 6794905 - CMOS inverter (2004-09-21),

14. 6788159 - Temperature compensated oscillator, adjusting method thereof, and integrated circuit for temperature compensated oscillator (2004-09-07),

15. 6733174 - Semiconductor temperature detecting method and its circuit (2004-05-11),

Company Overview

Nippon Precision Circuits Inc. is a Tokyo-based company specializing in the development and manufacturing of advanced oscillator circuits and related technologies. The firm focuses on a range of core technology areas, including digital filters, non-volatile memory, frequency synthesizers, and charge pump circuits. Their expertise extends to amplifiers, temperature compensated oscillators, and delta sigma converters, positioning them as a key player in the electronics sector, particularly in precision timing and signal processing solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

100 Patents

#541 in Tokyo

#1,121 in Japan

#7,778 in the World

Nippon Precision Circuits Inc.

Forward Citations = 1,482

81 inventors:

Akira Toyama (14 out of 25 patents)

Satoru Miyabe (13 out of 16 patents)

Yoshihisa Ogiwara (13 out of 13 patents)

4. Sakae Tanaka (12 out of 33 patents)

5. Yoshiaki Watanabe (12 out of 83 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Precision Circuits Inc.. Retrieved from https://idiyas.com/company/nippon-precision-circuits

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

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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