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Maeda Industries, Ltd.

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USPTO Granted Patents = 62

Forward Citations = 1,253

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17 inventors (with patents filed for the assignee):

Nobuo Ozaki (17 out of 22 patents)

Yoshihisa Iwasaki (11 out of 11 patents)

Koichi Tagawa (9 out of 12 patents)

4. Jun Kobayashi (8 out of 8 patents)

5. Kazuto Yamasaki (7 out of 7 patents)

6. Mikio Hosokawa (5 out of 5 patents)

7. Toshimasa Yamazaki (4 out of 4 patents)

8. Yasunori Ishibashi (3 out of 3 patents)

9. Kazuyuki Miura (2 out of 2 patents)

10. Shogo Akamatsu (2 out of 2 patents)

11. Tsukasa Wauke (2 out of 2 patents)

12. Hiroyuki Noami (2 out of 2 patents)

13. Mitsuo Nishimura (2 out of 2 patents)

14. Yoshimasa Kaneko (2 out of 2 patents)

15. Kenji Ikeda (1 out of 8 patents)

Core Competencies:

Bicycle Speed Change

Bicycle Derailleur

Sprocket Assembly

Gear Crank Assembly

Brake Lever Assembly

Quick-Release Hub

Variable-Speed Bicycle

Shift Lever Device

Caliper Brake Assembly

Bicycle Handle Assembly

Multiple Chainwheel

Drive Chain

62 patents: Sort by Forward Citations

1. 5429012 - Bicycle speed change operation assembly (1995-07-04),

2. 5421219 - Bicycle speed change system, bicycle speed change method and bicycle (1995-06-06),

3. 5390565 - Bicycle speed change system, bicycle speed change method and bicycle (1995-02-21),

4. 5380253 - Bicycle rear derailleur (1995-01-10),

5. 5380252 - Bicycle speed change assembly (1995-01-10),

6. 5315891 - Bicycle speed change operation assembly (1994-05-31),

7. 5312301 - Bicycle front derailleur (1994-05-17),

8. 5303608 - Bicycle speed change lever assembly (1994-04-19),

9. 5302155 - Bicycle derailleur (1994-04-12),

10. D339770 - Bicycle rear derailleur (1993-09-28),

11. 5238458 - Bicycle speed change assembly (1993-08-24),

12. 5235871 - Bicycle operating lever assembly (1993-08-17),

13. 5192250 - Multiple sprocket assembly for bicycle (1993-03-09),

14. 5188569 - Multiple sprocket assembly for bicycle (1993-02-23),

15. 5186071 - Bicycle speed change lever assembly (1993-02-16),

Company Overview

Maeda Industries, Ltd., based in Osaka, Japan, specializes in the development and manufacturing of advanced bicycle gear systems. The company focuses on innovative technologies related to bicycle speed change mechanisms, including derailleurs, sprocket assemblies, and gear crank assemblies. Maeda also produces essential components such as brake lever assemblies and quick-release hubs, enhancing the performance and functionality of variable-speed bicycles. Their expertise in shift lever devices further solidifies their position in the cycling industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

62 Patents

#162 in Osaka

#1,500 in Japan

#11,782 in the World

Maeda Industries, Ltd.

Forward Citations = 1,253

17 inventors:

Nobuo Ozaki (17 out of 22 patents)

Yoshihisa Iwasaki (11 out of 11 patents)

Koichi Tagawa (9 out of 12 patents)

4. Jun Kobayashi (8 out of 8 patents)

5. Kazuto Yamasaki (7 out of 7 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Maeda Industries, Ltd.. Retrieved from https://idiyas.com/company/maeda-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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