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Nippon Kogaku K.k.

USPTO Granted Patents = 849

Forward Citations = 11,643

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438 inventors (with patents filed for the assignee):

Osamu Maida (51 out of 52 patents)

Sakuji Watanabe (33 out of 33 patents)

Hiroshi Hasegawa (28 out of 112 patents)

4. Kenji Toyoda (27 out of 36 patents)

5. Hiroshi Wakabayashi (25 out of 124 patents)

6. Toru Fukuhara (24 out of 41 patents)

7. Akikazu Tanimoto (23 out of 53 patents)

8. Ken Utagawa (23 out of 83 patents)

9. Akira Ogasawara (22 out of 47 patents)

10. Yoshiyuki Nakano (22 out of 25 patents)

11. Takashi Saegusa (20 out of 54 patents)

12. Yoshiaki Ohtsubo (18 out of 27 patents)

13. Kyoichi Suwa (17 out of 39 patents)

14. Sunao Ishizaka (17 out of 17 patents)

15. Masao Nohda (17 out of 18 patents)

Core Competencies:

Projection Optical Apparatus

Magnetooptical Recording Medium

Optical Position Measuring Apparatus

Automatic Lens Meter

Zoom Lens

Laser Processing Apparatus

Camera System

Illumination Optical System

Pattern Detecting Apparatus

Focusing Apparatus for Camera

Electronic Still Camera

Surface Displacement Sensor

849 patents: Sort by Forward Citations

1. 5337097 - Projection optical apparatus (1994-08-09),

2. 5204193 - Recording magnetooptical recording medium (1993-04-20),

3. 4866546 - Recording and reproducing apparatus for disk-type recording media (1989-09-12),

4. 4833051 - Protective device for photographic masks (1989-05-23),

5. 4782239 - Optical position measuring apparatus (1988-11-01),

6. 4780747 - Projection exposure apparatus (1988-10-25),

7. 4780617 - Method for successive alignment of chip patterns on a substrate (1988-10-25),

8. 4780616 - Projection optical apparatus for mask to substrate alignment (1988-10-25),

9. 4779979 - Automatic lens meter (1988-10-25),

10. 4776693 - Foreign substance inspecting system including a calibration standard (1988-10-11),

11. 4775898 - Display device in a video instrument (1988-10-04),

12. 4775229 - Fresnel lens in a finder optical system (1988-10-04),

13. 4772909 - Lens drive control apparatus for automatic focusing (1988-09-20),

14. 4770533 - Apparatus for detecting position of an object such as a semiconductor (1988-09-13),

15. 4770531 - Stage device with levelling mechanism (1988-09-13),

Nippon Kogaku K.K., known as Nikon Corporation, is a multinational corporation headquartered in Tokyo, Japan. It specializes in optics and imaging products, including cameras, lenses, binoculars, microscopes, and measuring instruments. Established in 1917, Nikon is renowned for its innovative technology and high-quality imaging solutions. With a global presence, Nikon continues to be a leader in the field of photography and imaging, offering a wide range of products and services for professionals and enthusiasts alike.

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

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USPTO Data Jan 1 1976 - Dec 9 2025

849 Patents

#112 in Tokyo

#248 in Japan

#1,150 in the World

Nippon Kogaku K.k.

Forward Citations = 11,643

438 inventors:

Osamu Maida (51 out of 52 patents)

Sakuji Watanabe (33 out of 33 patents)

Hiroshi Hasegawa (28 out of 112 patents)

4. Kenji Toyoda (27 out of 36 patents)

5. Hiroshi Wakabayashi (25 out of 124 patents)

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