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Kanagawa, Japan

Hitachi Information & Telecommunication Engineering, Ltd.

USPTO Granted Patents = 46

% Expired Patents = 54.3

EPO Patents = 8

Forward Citations = 81

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84 inventors (with patents filed for the assignee):

Kimiaki Taniguchi (7 out of 13 patents)

Takae Shimada (6 out of 36 patents)

Naomitsu Tashiro (6 out of 8 patents)

4. Fumikazu Takahashi (6 out of 19 patents)

5. Takashi Sugiyama (4 out of 4 patents)

6. Mitsuo Hayasaka (3 out of 69 patents)

7. Koji Yamasaki (3 out of 33 patents)

8. Hironori Komi (3 out of 31 patents)

9. Yoshimasa Kashihara (3 out of 3 patents)

10. Toshiaki Koyama (3 out of 3 patents)

11. Toyoki Yamagishi (3 out of 3 patents)

12. Hiroyuki Shoji (3 out of 32 patents)

13. Taizo Hori (3 out of 3 patents)

14. Yoshihide Takahashi (3 out of 15 patents)

15. Shigeo Homma (2 out of 41 patents)

Core Competencies:

Data Management

Voice Recognition

Power Conversion

Storage Systems

Compression Methods

Behavior Analysis

Call Management

Image Processing

Authentication Systems

Semiconductor Manufacturing

DC-DC Converters

Error Detection

46 patents: Sort by Forward Citations

1. 12372997 - Processing device and error detection method (2025-07-29),

2. 11304176 - Device control system and method thereof (2022-04-12),

3. 11210214 - Storage system and compression method of storing compressed data from storage controller physical address space to logical and physical address space of nonvolatile memory (2021-12-28),

4. 11006107 - State prediction control apparatus and state prediction control method (2021-05-11),

5. 10924611 - Voice recognition system and call evaluation setting method (2021-02-16),

6. 10915441 - Storage system having non-volatile memory device (2021-02-09),

7. 10855837 - Call recording system and method of reproducing recorded call (2020-12-01),

8. 10846282 - Behavior characteristic amount analysis system and behavior characteristic amount analysis method (2020-11-24),

9. 10522149 - Call control system and call control method (2019-12-31),

10. 10395127 - State prediction device and state prediction method (2019-08-27),

11. 10250744 - Call center system and voice recognition control method of the same (2019-04-02),

12. 10170120 - Call management system and its speech recognition control method (2019-01-01),

13. 10116936 - Moving image coding device, moving image decoding device, moving image coding method, and moving image decoding method (2018-10-30),

14. 10091392 - Image reading device, image reading method, and image reading program (2018-10-02),

15. 10063058 - Power converter (2018-08-28),

Company Overview

Hitachi Information & Telecommunication Engineering, Ltd., based in Kanagawa, Japan, specializes in advanced technology solutions that enhance communication and data management. The company focuses on developing systems for error detection, device control, and data compression, alongside innovations in voice recognition and call management. Their expertise extends to power conversion, storage systems, and image processing, positioning them as a key player in the information and telecommunications sector, driving efficiency and reliability in various applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

46 Patents

#65 in Kanagawa

#1,808 in Japan

#15,122 in the World

Kanagawa, Japan

Hitachi Information & Telecommunication Engineering, Ltd.

Forward Citations = 81

84 inventors:

Kimiaki Taniguchi (7 out of 13 patents)

Takae Shimada (6 out of 36 patents)

Naomitsu Tashiro (6 out of 8 patents)

4. Fumikazu Takahashi (6 out of 19 patents)

5. Takashi Sugiyama (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Information & Telecommunication Engineering, Ltd.. Retrieved from https://idiyas.com/company/hitachi-information-and-telecommunication-engineering

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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