Fukutaro Hamaoka

This inventor holds 23 USPTO granted patents and 8 published patent applications, plus 1 CIPO patent and 1 EPO patent, primarily in Optical Communication. Top assignees: Nippon Telegraph and Telephone Corporation, Ntt Corporation. Active years: 2017-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Fukutaro Hamaoka. Retrieved from https://idiyas.com/inventor/fukutaro-hamaoka

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

USPTO Granted Patents = 23 (Patent Applications = 8)

% Patents Active = 100.0

CIPO Patents = 1 (Patent Applications = 1)

EPO Patents = 1 (Patent Applications = 1)

Average Co-Inventor Count = 4.1

ph-index = 1

Forward Citations = 7(Granted Patents)

Location History:

Tokyo-to, JP (2017)
Yokosuka, JP (2021)
Tokyo, JP (2020 - 2022)
Musashino, JP (2017 - 2024)

Company Filing History:

16 out of 5,300

Nippon Telegraph and Telephone Corporation

Years Active: 2017-2026

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Areas of Expertise:

Optical Transmission

Signal Detection

Decoding Method

Communication System

Signal Processing

Optical Receiver

Optical Transmitter

S/N Ratio Estimation

Adaptive Filter

Wavelength Dispersion

Digital Coherent Receiver

Transmission Characteristics

23 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12700874 - Encoding circuit, decoding circuit, encoding method, decoding method, and computer program (2026-08-04),

2. 12695542 - Decoding circuit, decoding method and computer program (2026-07-28),

3. 12676671 - Optical transmission system, signal quality measurement apparatus and signal quality measurement method (2026-07-07),

4. 12665695 - Signal detection device, signal detection method, and program (2026-06-23),

5. 12627323 - Signal generation apparatus, signal generation method, and computer program (2026-05-12),

6. 12580654 - Optical transmission system, optical receiver, optical transmitter, control method and program (2026-03-17),

7. 12463663 - Coding circuit, decoding circuit, coding method, decoding method and computer program (2025-11-04),

8. 11870489 - S/N ratio estimation circuit, and adaptive filter circuit (2024-01-09),

9. 11799557 - Communication apparatus, and optical transmission system (2023-10-24),

10. 11728889 - Optical transmitting apparatus and transmission characteristics estimation method (2023-08-15),

11. 11716149 - Optical receiving apparatus and coefficient optimization method (2023-08-01),

12. 11632185 - Signal processing method, signal processing apparatus and communication system (2023-04-18),

13. 11463169 - Wavelength dispersion amount estimation apparatus (2022-10-04),

14. 11444699 - Optical transmission system, optical receiving apparatus and optical transmission method (2022-09-13),

15. 11303359 - Communication system, optical transmitting apparatus, and optical receiving apparatus (2022-04-12),

Title: Innovations of Fukutaro Hamaoka

Introduction

Fukutaro Hamaoka is a prominent inventor based in Musashino, Japan. He has made significant contributions to the field of communication technology, holding a total of 16 patents. His work focuses on enhancing signal processing and communication systems.

Latest Patents

Hamaoka's latest patents include a S/N ratio estimation circuit and an adaptive filter circuit. The S/N ratio estimation circuit involves making tentative decisions for symbols based on received signals and decision thresholds. It updates scale values to match the appearance frequency of symbols in a reference signal, allowing for accurate S/N ratio calculations. The adaptive filter circuit is designed to improve communication apparatus by generating symbol sequences and incorporating probabilistic amplitude shaping coding. This innovation enhances the efficiency of data transmission.

Career Highlights

Fukutaro Hamaoka is associated with Nippon Telegraph and Telephone Corporation, where he has been instrumental in developing advanced communication technologies. His expertise in signal processing has led to numerous innovations that improve the reliability and efficiency of communication systems.

Collaborations

Hamaoka has collaborated with notable colleagues, including Masanori Nakamura and Seiji Okamoto. Their combined efforts have contributed to the advancement of technology in their field.

Conclusion

Fukutaro Hamaoka's contributions to communication technology through his patents and collaborations highlight his role as a leading inventor. His work continues to influence the development of innovative solutions in the industry.

Profile summary based on public USPTO records.