For the Inventor, By the Inventor

Enter assignee name

Itoh Denki Company, Limited

Calculating rank

USPTO Granted Patents = 50

% Expired Patents = 4.0

EPO Patents = 18

Trademarks = 1

Forward Citations = 338

Loading Chart...

Loading Chart...

37 inventors (with patents filed for the assignee):

Kazuo Itoh (43 out of 60 patents)

Tatsuhiko Nakamura (22 out of 27 patents)

Toshiyuki Tachibana (17 out of 27 patents)

4. Yoshiyuki Kujihashi (5 out of 7 patents)

5. Makoto Mitsuyoshi (5 out of 5 patents)

6. Yoshinori Nagai (5 out of 7 patents)

7. Koji Ueda (4 out of 4 patents)

8. Mitsuo Inoue (4 out of 28 patents)

9. Hideo Naiki (4 out of 4 patents)

10. Kazuwo Miki (3 out of 3 patents)

11. Masayuki Shimoda (3 out of 3 patents)

12. Akira Takanaga (3 out of 3 patents)

13. Jun Maekawa (3 out of 3 patents)

14. Masaki Tanaka (3 out of 4 patents)

15. Tomoya Matoba (3 out of 3 patents)

Core Competencies:

Conveyor Device

Motorized Roller

Cargo Handling

Conveyance System

Transfer Device

Brushless Motor

Zone Controller

Lifting Apparatus

Transportation Device

Fault Diagnosis

Energy-Saving Motor

Article Storage

50 patents: Sort by Forward Citations

1. 12600576 - Apparatus for checking operation of carrier device and computer program (2026-04-14),

2. 12578697 - Conveyor system (2026-03-17),

3. 12577061 - Conveyance device (2026-03-17),

4. 12522445 - Conveyor device and sensor for conveyor (2026-01-13),

5. 12509304 - Transport roller, conveyor device, and inclined conveyor device (2025-12-30),

6. 12476518 - Motor unit for motor incorporating roller, geared motor, and method for manufacturing the same (2025-11-18),

7. 12371268 - Motor unit and conveyance device (2025-07-29),

8. 12304745 - Method for manufacturing conveyance device (2025-05-20),

9. 12275599 - Conveyor system, cause information report device, and computer-readable recording medium recording program for cause information report device (2025-04-14),

10. 11760575 - Conveyance device and planar conveyance device (2023-09-19),

11. 11365064 - Cargo handling device and cargo handling method (2022-06-21),

12. 11273986 - Conveyance device and conveyance direction changing device (2022-03-15),

13. 11097899 - Conveyor device and conveying-direction changing device (2021-08-24),

14. D911289 - Connector (2021-02-23),

15. 10853600 - Code reading device and code reading method (2020-12-01),

Company Overview

Itoh Denki Company, Limited, based in Kasai, Japan, specializes in advanced conveyor technology and systems. The company focuses on the development and manufacturing of various conveyor devices, including motorized rollers and transfer devices, which are integral to efficient cargo handling and conveyance. Their expertise extends to brushless motors and zone controllers, enhancing the functionality of lifting apparatuses and automated systems. Itoh Denki is committed to innovation in material handling solutions, serving diverse industries with reliable and effective technologies.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

50 Patents

#1 in Kasai

#1,711 in Japan

#14,028 in the World

Itoh Denki Company, Limited

Forward Citations = 338

37 inventors:

Kazuo Itoh (43 out of 60 patents)

Tatsuhiko Nakamura (22 out of 27 patents)

Toshiyuki Tachibana (17 out of 27 patents)

4. Yoshiyuki Kujihashi (5 out of 7 patents)

5. Makoto Mitsuyoshi (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Itoh Denki Company, Limited. Retrieved from https://idiyas.com/company/itoh-denki-company

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]

Loading…