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Ando Electric Company

USPTO Granted Patents = 389

% Expired Patents = 15.4

CIPO Patents = 1

Forward Citations = 2,865

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286 inventors (with patents filed for the assignee):

Haruyoshi Uchiyama (13 out of 15 patents)

Nobuaki Takeuchi (11 out of 22 patents)

Minoru Maeda (10 out of 44 patents)

4. Seiji Funakawa (10 out of 10 patents)

5. Keisuke Asami (10 out of 10 patents)

6. Kazuo Aida (10 out of 24 patents)

7. Takashi Iwasaki (9 out of 24 patents)

8. Tohru Mori (9 out of 16 patents)

9. Akio Ichikawa (9 out of 15 patents)

10. Shoichi Aoki (8 out of 19 patents)

11. Yoshizou Honda (7 out of 7 patents)

12. Tsuneo Horiguchi (7 out of 9 patents)

13. Keiji Negi (7 out of 7 patents)

14. Satoshi Matsuura (6 out of 15 patents)

15. Takafumi Uehara (6 out of 6 patents)

Core Competencies:

Optical Fibers

Wavelength Monitor

Tunable Light Source

Chromatic Dispersion

Noise Figure

Optical Spectrum Analyzer

Phase Locked Loop

IC Testing

Data Processing

Monochromator

Semiconductor Testing

Signal Measurement

389 patents: Sort by Forward Citations

1. 7180582 - Apparatus and method for measuring characteristics of optical fibers (2007-02-20),

2. 6980297 - Wavelength monitor (2005-12-27),

3. 6928089 - Pattern synchronous circuit (2005-08-09),

4. 6922418 - Wavelength-variable light source apparatus (2005-07-26),

5. 6915470 - Data log acquisition circuit and data log acquisition method (2005-07-05),

6. 6914464 - Phase locked loop circuit using fractional frequency divider (2005-07-05),

7. 6910221 - Moving image communication evaluation system and moving image communication evaluation method (2005-06-21),

8. 6900883 - Wavelength dependence measuring system (2005-05-31),

9. 6898001 - Noise figure-measuring device and noise figure-measuring method (2005-05-24),

10. 6892333 - IC measuring device (2005-05-10),

11. 6892000 - Tunable filter (2005-05-10),

12. 6882410 - Filter processing system for the output signal of optical time domain reflectometer in the chromatic dispersion distribution measurement apparatus (2005-04-19),

13. 6879396 - Monochromator and optical spectrum analyzer using the same (2005-04-12),

14. 6853450 - Monochromator and optical spectrum analyzer (2005-02-08),

15. 6850688 - Variable-wavelength light source unit (2005-02-01),

Company Overview

Ando Electric Company, based in Tokyo, specializes in the development and manufacturing of advanced optical measurement systems. The company focuses on key technologies such as optical fibers, wavelength monitors, and tunable light sources, catering to a variety of applications in telecommunications and testing. Their expertise extends to chromatic dispersion, noise figure analysis, and optical spectrum analysis, making them a pivotal player in the optical technology landscape. Ando Electric is committed to innovation and precision in optical measurement solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

389 Patents

#219 in Tokyo

#444 in Japan

#2,380 in the World

Ando Electric Company

Forward Citations = 2,865

286 inventors:

Haruyoshi Uchiyama (13 out of 15 patents)

Nobuaki Takeuchi (11 out of 22 patents)

Minoru Maeda (10 out of 44 patents)

4. Seiji Funakawa (10 out of 10 patents)

5. Keisuke Asami (10 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ando Electric Company. Retrieved from https://idiyas.com/company/ando-electric-company

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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