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Sony Precision Technology Inc.

USPTO Granted Patents = 35

% Expired Patents = 11.4

Trademarks = 1

Forward Citations = 257

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32 inventors (with patents filed for the assignee):

Yasuo Nekado (9 out of 10 patents)

Shigeru Ishimoto (8 out of 18 patents)

Masaaki Kusumi (6 out of 19 patents)

4. Kayoko Taniguchi (5 out of 18 patents)

5. Toyohiko Matsuda (5 out of 5 patents)

6. Akihiro Kuroda (4 out of 14 patents)

7. Mitsuru Ohno (4 out of 5 patents)

8. Masato Tanaka (3 out of 184 patents)

9. Hideaki Tamiya (3 out of 21 patents)

10. Katsumi Kitamura (3 out of 5 patents)

11. Tadahiko Shimano (3 out of 3 patents)

12. Shuichi Fukuda (2 out of 5 patents)

13. Gunichi Nakamura (2 out of 3 patents)

14. Ken Onoe (2 out of 4 patents)

15. Hidehiro Kume (2 out of 15 patents)

Core Competencies:

Displacement Detection

Position Transducer

Optical Measurement

Magnetic Sensors

Scale Device

Defect Inspection

Recording Apparatus

Magnetic Flux Measurement

Crosstalk Measurement

Eccentricity Measurement

Dew Formation Prediction

Magneto-Resistive Effect

35 patents: Sort by Forward Citations

1. 7187449 - Light-receiving/emitting composite unit, method for manufacturing the same, and displacement detection device (2007-03-06),

2. 7171039 - Defect classification/inspection system (2007-01-30),

3. 7034948 - Displacement pickup (2006-04-25),

4. 6980303 - Light-emitting/receiving combined unit and displacement sensors using the same (2005-12-27),

5. 6935043 - Scale device including means for preventing the occurence of small gaps between opposing walls of a guide opening (2005-08-30),

6. 6931741 - Scale device (2005-08-23),

7. 6879405 - Displacement pickup (2005-04-12),

8. 6788053 - Magnetic flux measuring device (2004-09-07),

9. 6772101 - Position detection apparatus and arithmetic processing unit (2004-08-03),

10. 6772088 - Position transducer (2004-08-03),

11. 6768426 - Position detection apparatus (2004-07-27),

12. 6711109 - Method and apparatus for measuring the eccentricity of disk (2004-03-23),

13. 6707775 - Method and apparatus for measuring crosstalk of optical disc (2004-03-16),

14. 6693565 - Position transducer (2004-02-17),

15. 6583948 - Disc recording/reproducing apparatus and servo signal writing apparatus (2003-06-24),

Sony Precision Technology Inc., based in Tokyo, specializes in advanced precision engineering and manufacturing solutions. The company focuses on developing high-quality components and systems for various industries, including consumer electronics, automotive, and industrial applications. With a commitment to innovation, it leverages cutting-edge technologies to enhance product performance and reliability. The organization plays a significant role in supporting the broader Sony Group's initiatives, contributing to advancements in technology and design across multiple sectors.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

35 Patents

#993 in Tokyo

#2,128 in Japan

#19,137 in the World

Sony Precision Technology Inc.

Forward Citations = 257

32 inventors:

Yasuo Nekado (9 out of 10 patents)

Shigeru Ishimoto (8 out of 18 patents)

Masaaki Kusumi (6 out of 19 patents)

4. Kayoko Taniguchi (5 out of 18 patents)

5. Toyohiko Matsuda (5 out of 5 patents)

Please report any incorrect information to [email protected]

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