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For the Inventor, By the Inventor

Kanagawa, Japan

Ntt Electronics Corporation


USPTO Granted Patents = 164

% Expired Patents = 26.2


Trademarks = 4

Forward Citations = 406

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348 inventors (with patents filed for the assignee):

goldMedal Etsushi Yamazaki (16 out of 44 patents)

silverMedal Tadao Ishibashi (16 out of 19 patents)

bronzeMedal 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:

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),
NTT ELECTRONICS CORPORATION is a global leader in electronic components and solutions for various industries. With a strong focus on research and development, the company offers cutting-edge technologies such as optical devices, integrated circuits, and network solutions. NTT ELECTRONICS CORPORATION aims to contribute to society through technology innovation and high-quality products. Visit their website for more information.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

164 Patents

#25 in Kanagawa

#809 in Japan

#5,032 in the World

Kanagawa, JP
Kanagawa, Japan

Ntt Electronics Corporation

Forward Citations = 406

348 inventors:

goldMedal Etsushi Yamazaki (16 out of 44 patents)

silverMedal Tadao Ishibashi (16 out of 19 patents)

bronzeMedal Masahito Tomizawa (15 out of 45 patents)

4.  Kazuhito Takei (14 out of 14 patents)

5.  Yoshiaki Kisaka (13 out of 55 patents)

Please report any incorrect information to [email protected]
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