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Kawasaki, Japan

Qd Laser, Inc.

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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)

Core Competencies:

Image Projection Device

Optical Semiconductor

Semiconductor Laser

Visual Examination

Retinal Scanning

Image Inspection

Head-Mounted Display

Laser System

Visual Acuity

Image Relay

Semiconductor Light-Emitting Element

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),

Company Overview

Qd Laser, Inc. is a pioneering company based in Kawasaki, Japan, specializing in advanced laser technologies. The organization focuses on the development and manufacturing of innovative laser systems for various applications, including medical devices and industrial solutions. With a commitment to research and development, Qd Laser aims to enhance precision and efficiency in its products, contributing to advancements in fields such as healthcare and manufacturing. The company's expertise in laser technology positions it as a key player in the global market.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

29 Patents

#33 in Kawasaki

#2,362 in Japan

#22,570 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Qd Laser, Inc.. Retrieved from https://idiyas.com/company/qd-laser

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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