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Ichikoh Industries, Ltd.

USPTO Granted Patents = 401

% Expired Patents = 30.4

EPO Patents = 153

Trademarks = 2

Forward Citations = 3,324

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275 inventors (with patents filed for the assignee):

Yasuhiro Okubo (45 out of 45 patents)

Kazunori Iwasaki (25 out of 25 patents)

Toshiya Abe (24 out of 24 patents)

4. Eiji Suzuki (20 out of 20 patents)

5. Ikuo Sakata (18 out of 19 patents)

6. Yasufumi Suzuki (18 out of 18 patents)

7. Yutaka Nakata (17 out of 17 patents)

8. Osamu Tsuyama (9 out of 9 patents)

9. Masao Enomoto (9 out of 9 patents)

10. Hiroyasu Onuki (8 out of 8 patents)

11. Yoshiro Sato (7 out of 7 patents)

12. Masateru Hayashi (7 out of 7 patents)

13. Takayuki Kawamura (7 out of 7 patents)

14. Kenji Matsuoka (6 out of 6 patents)

15. Kei Onoma (6 out of 6 patents)

Core Competencies:

Vehicle Lamp

Lighting Fixture

Light Source Unit

Projection Device

Vehicular Headlamp

Light Guide

Lamp Unit

Excitation Light Source

Optical Filter

Lighting Appliance

Light Distribution

Resin Component

401 patents: Sort by Forward Citations

1. 12560293 - Vehicle light-guiding body and vehicle lighting unit (2026-02-24),

2. 12553585 - Vehicle lamp (2026-02-17),

3. 12504138 - Vehicle light-guiding body and vehicle lighting unit (2025-12-23),

4. 12492799 - Lighting fixture for vehicle (2025-12-09),

5. 12459425 - Projection device for vehicle, method of operating same, and light fixture for vehicle (2025-11-04),

6. 12459424 - Vehicle lamp control device, and vehicle lamp (2025-11-04),

7. 12455059 - Light source unit for vehicular lighting tool and vehicular lighting tool (2025-10-28),

8. 12420702 - Vehicle projection device, control method therefor, and vehicle lamp (2025-09-23),

9. 12410899 - Lamp unit for vehicular headlamp, and vehicular headlamp (2025-09-09),

10. 12404983 - Vehicle lamp (2025-09-02),

11. 12366338 - Vehicle lamp (2025-07-22),

12. 12358424 - Vehicle lamp (2025-07-15),

13. 12345387 - Lighting tool for vehicles (2025-07-01),

14. 12326234 - Lamp unit and vehicle lighting tool (2025-06-10),

15. 12305823 - Vehicle lighting appliance lens, vehicle lighting appliance unit, and vehicle lighting appliance device (2025-05-20),

Ichikoh Industries, Ltd. is a prominent player in the vehicle lighting sector, headquartered in Isehara, Japan. The company specializes in the development and manufacturing of advanced vehicle lamps and lighting fixtures, focusing on enhancing safety and visibility in automotive applications. Ichikoh's expertise encompasses a range of technologies, including projection devices, light guide systems, and excitation light sources, positioning it as a key innovator in vehicular headlamp solutions and related lighting technologies.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

401 Patents

#1 in Isehara

#434 in Japan

#2,324 in the World

Ichikoh Industries, Ltd.

Forward Citations = 3,324

275 inventors:

Yasuhiro Okubo (45 out of 45 patents)

Kazunori Iwasaki (25 out of 25 patents)

Toshiya Abe (24 out of 24 patents)

4. Eiji Suzuki (20 out of 20 patents)

5. Ikuo Sakata (18 out of 19 patents)

Please report any incorrect information to [email protected]

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