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Asahi Seimitsu Kabushiki Kaisha

USPTO Granted Patents = 46

Forward Citations = 381

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38 inventors (with patents filed for the assignee):

Masayuki Arai (12 out of 28 patents)

Terumi Ogasawara (11 out of 11 patents)

Takayuki Ito (6 out of 135 patents)

4. Masao Koenuma (6 out of 6 patents)

5. Tohru Shikano (6 out of 6 patents)

6. Homu Takayama (5 out of 18 patents)

7. Takayasu Shishido (4 out of 5 patents)

8. Yoshitaka Gibu (4 out of 4 patents)

9. Yasuo Nakamura (3 out of 110 patents)

10. Masayuki Ueno (3 out of 17 patents)

11. Kenji Kaneko (3 out of 24 patents)

12. Shunichiro Wakamiya (3 out of 6 patents)

13. Tatsuo Gotoh (3 out of 6 patents)

14. Yoichi Kojima (3 out of 23 patents)

15. Masakazu Yamagata (3 out of 4 patents)

Core Competencies:

CCTV Cameras

Optical Communication

Measurement Surveying

Lens Mechanisms

Focusing Apparatus

Aspherical Lenses

Automatic Diaphragm Control

Zoom Lens Systems

Surveying Instruments

Color Separation Prisms

Digital Display Devices

Drafting Machines

46 patents: Sort by Forward Citations

1. 6476978 - Linear-motion helicoid mechanism for CCTV camera (2002-11-05),

2. 6384944 - Integral transmitter-receiver optical communication apparatus (2002-05-07),

3. D447066 - Measurement surveying device (2001-08-29),

4. 6154255 - Mount shift apparatus of lens for CCTV camera (2000-11-28),

5. 6141144 - Optical axis correcting system (2000-10-31),

6. 6118242 - Travel-limit circuit having a direct current motor for a lens (2000-09-12),

7. D427087 - Measurement surveying device (2000-06-27),

8. 6078442 - ND filter (2000-06-20),

9. 5936736 - Focusing method and apparatus for a surveying instrument having an AF (1999-08-10),

10. D411809 - Surveying apparatus/instruments (1999-07-06),

11. 5877892 - Focus detecting apparatus for a telescope system (1999-03-02),

12. 5861999 - Super wide angel lens system using an aspherical lens (1999-01-19),

13. 5796517 - Inner focus type telescope (1998-08-18),

14. 5721969 - Mechanism for driving a blur correcting lens in a blurred image (1998-02-24),

15. D389418 - Electronic measurement device (1998-01-20),

Asahi Seimitsu Kabushiki Kaisha is a manufacturing company based in Japan. They specialize in the production of precision machinery and equipment for various industries, including automotive, electronics, and medical. With their advanced technological capabilities and commitment to quality, they provide innovative solutions that meet the evolving needs of their customers.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

46 Patents

#732 in Tokyo

#1,768 in Japan

#14,688 in the World

Asahi Seimitsu Kabushiki Kaisha

Forward Citations = 381

38 inventors:

Masayuki Arai (12 out of 28 patents)

Terumi Ogasawara (11 out of 11 patents)

Takayuki Ito (6 out of 135 patents)

4. Masao Koenuma (6 out of 6 patents)

5. Tohru Shikano (6 out of 6 patents)

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