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Kanagawa, Japan

Ntt Electronics Corporation

USPTO Granted Patents = 164

% Expired Patents = 26.2

EPO Patents = 71

Trademarks = 4

Forward Citations = 406

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348 inventors (with patents filed for the assignee):

Etsushi Yamazaki (16 out of 44 patents)

Tadao Ishibashi (16 out of 19 patents)

Masahito Tomizawa (15 out of 45 patents)

4. Kazuhito Takei (14 out of 14 patents)

5. Yoshiaki Kisaka (13 out of 55 patents)

6. Mitsuteru Yoshida (12 out of 20 patents)

7. Toshiki Nishizawa (12 out of 14 patents)

8. Yuji Mitsuhashi (11 out of 11 patents)

9. Yasuharu Onuma (10 out of 11 patents)

10. Katsuichi Oyama (10 out of 11 patents)

11. Tomohiro Takamuku (9 out of 11 patents)

12. Ikuo Ogawa (9 out of 15 patents)

13. Yasuyuki Endoh (8 out of 8 patents)

14. Ryoichi Kasahara (8 out of 41 patents)

15. Ken Tsuzuki (8 out of 34 patents)

Core Competencies:

Optical Device

Error Correction

Data Transfer

Optical Module

Frame Synchronization

Adaptive Equalization

Chromatic Dispersion

Optical Waveguide

Digital Signal Processing

Light Modulation

Integrated Optoelectronic Module

Transimpedance Amplifier

164 patents: Sort by Forward Citations

1. 12306533 - Optical device manufacturing method and manufacturing apparatus using local etching (2025-05-20),

2. 12141026 - Error correction circuit, error correction method, and communication apparatus (2024-11-12),

3. 12132812 - Data transfer circuit and communication apparatus (2024-10-29),

4. 12113888 - Frame synchronization system, frame synchronization circuit, and frame synchronization method (2024-10-08),

5. 12068421 - Light reception element and light shielding structure for optical circuit (2024-08-20),

6. 11853736 - Module, information processing device equipped with same, and method for updating program data to update program data in module (2023-12-26),

7. 11611395 - Adaptive equalization device, adaptive equalization method, and communication device (2023-03-21),

8. 11558114 - Optical transmission characteristics compensating method and optical transmission characteristics compensating system (2023-01-17),

9. 11494165 - Arithmetic circuit for performing product-sum arithmetic (2022-11-08),

10. 11432005 - Moving image encoding device (2022-08-30),

11. 11360741 - Arithmetic circuit (2022-06-14),

12. 11333950 - Optical module (2022-05-17),

13. 11329764 - Error correction device, error correction method, and optical communication system (2022-05-10),

14. 11323238 - Frame synchronization apparatus, optical communication apparatus, and frame synchronization method (2022-05-03),

15. 11307356 - Optical module (2022-04-19),

Company Overview

NTT Electronics Corporation, headquartered in Kanagawa, Japan, specializes in the development and manufacturing of advanced optical communication technologies. The company focuses on a range of core technology topics including optical devices, error correction, and data transfer solutions. NTT Electronics is known for its innovations in optical modules, frame synchronization, adaptive equalization, and chromatic dispersion, contributing significantly to the evolution of optical waveguide systems and enhancing data transmission capabilities across various applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

164 Patents

#25 in Kanagawa

#810 in Japan

#5,042 in the World

Kanagawa, Japan

Ntt Electronics Corporation

Forward Citations = 406

348 inventors:

Etsushi Yamazaki (16 out of 44 patents)

Tadao Ishibashi (16 out of 19 patents)

Masahito Tomizawa (15 out of 45 patents)

4. Kazuhito Takei (14 out of 14 patents)

5. Yoshiaki Kisaka (13 out of 55 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ntt Electronics Corporation. Retrieved from https://idiyas.com/company/ntt-electronics

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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