For the Inventor, By the Inventor

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Kawasaki, Japan

Qd Laser, Inc.

USPTO Granted Patents = 29

% Expired Patents = 13.8

EPO Patents = 10

Trademarks = 3

Forward Citations = 30

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30 inventors (with patents filed for the assignee):

Makoto Suzuki (20 out of 71 patents)

Mitsuru Sugawara (16 out of 49 patents)

Kenichi Nishi (6 out of 6 patents)

4. Seiji Morino (5 out of 5 patents)

5. Kinya Hasegawa (5 out of 7 patents)

6. Keizo Takemasa (5 out of 5 patents)

7. Kenji Yasui (4 out of 5 patents)

8. Yasuhiko Arakawa (4 out of 32 patents)

9. Yuki Kamata (4 out of 8 patents)

10. Koichi Oyama (3 out of 11 patents)

11. Michio Arai (3 out of 5 patents)

12. Yutaka Ohnishi (3 out of 8 patents)

13. Hiroyuki Tarumi (3 out of 3 patents)

14. Tomoyuki Akiyama (2 out of 53 patents)

15. Megumi Yamamoto (2 out of 2 patents)

29 patents: Sort by Forward Citations

1. 12693525 - Image projection device (2026-07-28),

2. 12548983 - Optical semiconductor device and semiconductor laser device (2026-02-10),

3. 12513260 - Image projection device (2025-12-30),

4. 12360405 - Optical semiconductor device (2025-07-15),

5. 12149053 - Semiconductor device (2024-11-19),

6. 12038620 - Image relay device and image projection system (2024-07-16),

7. 11764546 - Semiconductor laser device (2023-09-19),

8. 11717157 - Visual sense examination device (2023-08-08),

9. 11586038 - Image projection device (2023-02-21),

10. 11445903 - Vision test device (2022-09-20),

11. 11428926 - Image projection device (2022-08-30),

12. 11158034 - Image inspection device, image inspection method, and image inspection device component (2021-10-26),

13. 11129527 - Visual field/visual acuity examination system, visual field/visual acuity examination device, visual field/visual acuity examination method, visual field/visual acuity examination program, and server device (2021-09-28),

14. 11019995 - Retinal scanning type eye examination device, retinal scanning type eye examination system, eyewear provision system, and retinal scanning type eyewear (2021-06-01),

15. 10924716 - Image projection device (2021-02-16),

QD Laser, Inc. is a leading global provider of quantum dot lasers for various applications including healthcare, optical communications, and environmental sensing. With cutting-edge technology and research, QD Laser delivers high-performance, reliable, and efficient laser solutions. Their lasers enable innovative advancements in medical diagnostics, fiber-optic communications networks, and environmental monitoring systems. QD Laser is committed to pushing the boundaries of laser technology and delivering value to their customers.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

29 Patents

#32 in Kawasaki

#2,355 in Japan

#22,484 in the World

Kawasaki, Japan

Qd Laser, Inc.

Forward Citations = 30

30 inventors:

Makoto Suzuki (20 out of 71 patents)

Mitsuru Sugawara (16 out of 49 patents)

Kenichi Nishi (6 out of 6 patents)

4. Seiji Morino (5 out of 5 patents)

5. Kinya Hasegawa (5 out of 7 patents)

Please report any incorrect information to [email protected]

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