Hiroaki Tanaka

This inventor holds 76 USPTO granted patents and 15 published patent applications and 13 EPO patents, primarily in Lithium-Ion Batteries (CPC class C07D). Top assignees: Nec Lcd Technologies, Ltd., Nec Corporation, Ricoh Company, Ltd.. Active years: 1979-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Tanaka. Retrieved from https://idiyas.com/inventor/hiroaki-tanaka-ng0z8jyy

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

Calculating rank

USPTO Granted Patents = 76 (Patent Applications = 15)

% Patents Active = 84.2

EPO Patents = 13 (Patent Applications = 32)

Average Co-Inventor Count = 3.0

ph-index = 15

Forward Citations = 714(Granted Patents)

Forward Citations (Not Self Cited) = 698(Dec 10, 2025)

Inventors with similar research interests:

Company Filing History:

14 out of 568

Nec Lcd Technologies, Ltd.

Yokogawa Electric Corporation

Toyo Ink Manufacturing Company

Confocal Science Inc.

patent

13. 1 out of 16,458

Fuji Photo Film Company, Limited

Hayashi Tokei Kogyo Kabushiki Kaisha

Kabushiki Kaisha King Jim

patents

18. 1 out of 53,316

Kabushiki Kaisha Toshiba

Mitsubishi Electric Corporation

patents

23. 1 out of 2,307

Mitsubishi Gas Chemical Company, Inc.

patents

24. 1 out of 1,235

Nissan Chemical Industries Limited

patents

25. 1 out of 101

Onoda Cement Co., Ltd.

patents

26. 1 out of 256

Research Development Corporation of Japan

patents

27. 1 out of 34,333

Seiko Epson Corporation

patents

28. 1 out of 314

Taisho Pharmaceutical Co., Ltd.

patents

29. 1 out of 193

Tokyo Gas Company Limited

patents

30. 1 out of 105

Toyo Ink Mfg. Co., Ltd.

patents

31. 1 out of 834,659

Other

patents

where one patent can have more than one assignee

Years Active: 1979-2026

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Areas of Expertise:

Lithium-Ion Battery

Solid Electrolyte

Communication System

Distance Measurement

Display Device

Operator's Cab

Work Vehicle

Protein Crystallization

Digital Camera

Zoom Lens System

Micro Flow Sensor

Tetrahydroisoquinoline

76 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12770914 - Sulfide-based solid electrolyte used in lithium ion secondary battery, method for producing same, and lithium ion secondary battery (2026-10-20),

2. 12586815 - Sulfide-based solid electrolyte used for lithium ion secondary battery and production method for same, solid electrolyte layer, and lithium ion secondary battery (2026-03-24),

3. 12537601 - Communication device and communication device configuration method (2026-01-27),

4. 12511323 - Communication system, terminal apparatus, and information processing system (2025-12-30),

5. 12321657 - Communication system, information processing system, and information processing method for displaying language information converted from speech data (2025-06-03),

6. 12107625 - Failure detection device, failure detection method, and failure-detection-program recording medium (2024-10-01),

7. 12037768 - Work vehicle (2024-07-16),

8. 11993915 - Operator's cab and work vehicle (2024-05-28),

9. 11978252 - Communication system, display apparatus, and display control method (2024-05-07),

10. 11885841 - Electric field sensor (2024-01-30),

11. 11879230 - Cab and work vehicle (2024-01-23),

12. 11692330 - Work machine (2023-07-04),

13. 11479944 - Work machine and cab (2022-10-25),

14. 11479561 - Tetrahydroisoquinoline derivatives (2022-10-25),

15. RE49111 - 2-acylaminothiazole derivative or salt thereof (2022-06-20),

Title: Innovations and Patents of Hiroaki Tanaka in Optical Transmission and Excavation Technology

Introduction

Hiroaki Tanaka is a distinguished inventor based in Tokyo, Japan, with an impressive portfolio of 71 patents to his name. His innovative contributions span various technologies, particularly in the fields of optical transmission systems and work vehicles. Through his inventions, Tanaka has significantly advanced the capabilities and efficiency of these technologies.

Latest Patents

Hiroaki Tanaka's latest patents reflect his commitment to improving failure detection in Wavelength Division Multiplexing (WDM) optical transmission systems. One of his notable inventions is a failure detection device designed to identify terminal stations experiencing failures during optical signal transmission. This device features an input unit that consolidates first optical signals from multiple terminal stations, a monitoring unit that generates monitoring signals based on signal intensities, and an identifying unit that determines which terminal station has encountered a failure based on the collected information.

In addition to his work in optical transmission, Tanaka has also developed a hydraulic excavator designed for work vehicle applications. This excavator comprises a revolving frame and a cab with a support base for the operator's seat, along with a unique restriction member that enhances safety and efficiency during operations.

Career Highlights

Hiroaki Tanaka has contributed his expertise to renowned companies, including NEC LCD Technologies, Ltd. and NEC Corporation. His work has not only influenced advancements in technology but has also established him as a key figure in the field of innovation.

Collaborations

Throughout his career, Tanaka has collaborated with esteemed colleagues such as Shigeru Kimura and Takahiko Watanabe. These collaborations have fostered the sharing of knowledge and ideas, further propelling advancements in the technologies he specializes in.

Conclusion

Hiroaki Tanaka is a pivotal inventor whose 71 patents signify his dedication to technological advancement. His contributions to optical transmission systems and work vehicles exemplify how innovative thinking can lead to substantial improvements in efficiency and safety. As technology continues to evolve, Tanaka's work will undoubtedly remain influential in shaping the future of these industries.

Profile summary based on public USPTO records.