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Kanagawa, Japan

Kuroda Precision Industries Ltd.

USPTO Granted Patents = 55

% Expired Patents = 5.5

EPO Patents = 11

Trademarks = 10

Forward Citations = 285

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53 inventors (with patents filed for the assignee):

Osamu Fukuyama (10 out of 10 patents)

Tomoaki Murayama (9 out of 9 patents)

Yoshimi Iwasaki (9 out of 9 patents)

4. Hideo Horii (7 out of 8 patents)

5. Masanobu Ikeda (6 out of 6 patents)

6. Hironobu Okudaira (6 out of 6 patents)

7. Kenichi Shindo (6 out of 6 patents)

8. Kaoru Naoi (4 out of 4 patents)

9. Toshiaki Ohno (3 out of 3 patents)

10. Katsuhiko Sato (3 out of 9 patents)

11. Tatsuhito Inouchi (3 out of 3 patents)

12. Tatsuo Tsuchiya (3 out of 3 patents)

13. Kazuhiro Hozumi (3 out of 3 patents)

14. Ryo Kaibe (2 out of 2 patents)

15. Hitoshi Hakogi (2 out of 2 patents)

Core Competencies:

Laminated Iron Core

Magnet Embedded Core

Manufacturing Device

Progressive Die Machine

Ball Screw

Resin Sealing

Control Device

Measuring Apparatus

Thin Board Holding

Optical Measurement

Chuck Device

Cutting Fluid Supply

55 patents: Sort by Forward Citations

1. 12695366 - Laminated iron core and manufacturing device and manufacturing method therefor (2026-07-28),

2. 12496610 - Adhesive agent applying apparatus and adhesive agent application method for laminated iron core and manufacturing apparatus and manufacturing method for laminated iron core (2025-12-16),

3. 12033792 - Manufacturing apparatus for laminated iron core (2024-07-09),

4. 11990802 - Manufacturing apparatus and manufacturing method for laminated iron core (2024-05-21),

5. 11588384 - Device and method for manufacturing magnet embedded core (2023-02-21),

6. 11552540 - Method of manufacturing magnet embedded core (2023-01-10),

7. 11532973 - Rotor core retaining jig, manufacturing device and manufacturing method for magnet embedded core (2022-12-20),

8. 11356003 - Manufacturing device for magnet embedded core (2022-06-07),

9. 11355282 - Manufacturing method for laminated iron core (2022-06-07),

10. 11264872 - Setting device for rotor core retaining jig (2022-03-01),

11. 11258340 - Manufacturing device for magnet embedded core (2022-02-22),

12. 11223261 - Resin sealing device and resin sealing method for manufacturing magnet embedded core (2022-01-11),

13. 11201527 - Device, method, and jig for manufacturing magnet embedded core (2021-12-14),

14. 11201526 - Resin sealing device and resin sealing method for manufacturing magnet embedded core (2021-12-14),

15. 11174924 - Ball screw (2021-11-16),

Company Overview

Kuroda Precision Industries Ltd., based in Kanagawa, Japan, specializes in the manufacturing of laminated iron cores and related technologies. The company focuses on innovative solutions such as magnet embedded cores and advanced manufacturing devices, including progressive die machines and ball screws. Kuroda also develops resin sealing technologies, control devices, and measuring apparatuses, positioning itself as a key player in precision engineering and manufacturing within the laminated iron core sector.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

55 Patents

#60 in Kanagawa

#1,619 in Japan

#12,922 in the World

Kanagawa, Japan

Kuroda Precision Industries Ltd.

Forward Citations = 285

53 inventors:

Osamu Fukuyama (10 out of 10 patents)

Tomoaki Murayama (9 out of 9 patents)

Yoshimi Iwasaki (9 out of 9 patents)

4. Hideo Horii (7 out of 8 patents)

5. Masanobu Ikeda (6 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kuroda Precision Industries Ltd.. Retrieved from https://idiyas.com/company/kuroda-precision-industries

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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