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Nittoh Kogaku K.k.

USPTO Granted Patents = 48

Forward Citations = 325

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30 inventors (with patents filed for the assignee):

Yoshinori Shinohara (7 out of 8 patents)

Fuminori Takahashi (5 out of 7 patents)

Kenji Iijima (4 out of 4 patents)

4. Akira Sawamoto (4 out of 4 patents)

5. Jeffrey Alan Gohman (3 out of 41 patents)

6. Takuya Kageyama (3 out of 7 patents)

7. Fumiaki Koizumi (3 out of 3 patents)

8. Keiichi Mochizuki (3 out of 6 patents)

9. Akira Yamagishi (3 out of 3 patents)

10. Kiwamu Kobayashi (3 out of 3 patents)

11. Takahiko Matsuo (2 out of 15 patents)

12. Kazuhiro Oe (2 out of 6 patents)

13. Takashi Yamaguchi (2 out of 4 patents)

14. Shuji Narimatsu (2 out of 27 patents)

15. Takashi Iwamoto (2 out of 4 patents)

48 patents: Sort by Forward Citations

1. 9529181 - Zoom lens system and imaging apparatus (2016-12-27),

2. 9372388 - Projection optical assembly with multiple refractive optical systems and related projector device (2016-06-21),

3. D748842 - Lighting fixture (2016-02-02),

4. D748316 - Lighting fixture (2016-01-26),

5. 8981402 - White LED lighting device, and optical lens (2015-03-17),

6. 8947787 - Lens barrel (2015-02-03),

7. 8740418 - Optical element and light emitting device (2014-06-03),

8. 8727591 - Light emitting device and optical element (2014-05-20),

9. 8705179 - Zoom lens system (2014-04-22),

10. 8693109 - Projector lens system and projector apparatus (2014-04-08),

11. 8649109 - Lens holder (2014-02-11),

12. 8646953 - Light guiding body and light emitting device (2014-02-11),

13. 8616746 - Optical element and light-emitting device (2013-12-31),

14. 8613531 - Light emitting device (2013-12-24),

15. 8591060 - Light emitting device and bulb-type LED lamp (2013-11-26),

Established in 1948, NITTOH KOGAKU K.K. is a leading optical instruments manufacturer based in Japan. Specializing in the production of high-quality lenses, microscopes, and other optical products, NITTOH KOGAKU has gained a reputation for excellence and innovation. With a commitment to technological advancement and customer satisfaction, the company continues to deliver reliable and precise optical solutions to various industries worldwide.

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

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USPTO Data Jan 1 1976 - Dec 2 2025

48 Patents

#21 in

#1,718 in

#14,089 in the World

Nittoh Kogaku K.k.

Forward Citations = 325

30 inventors:

Yoshinori Shinohara (7 out of 8 patents)

Fuminori Takahashi (5 out of 7 patents)

Kenji Iijima (4 out of 4 patents)

4. Akira Sawamoto (4 out of 4 patents)

5. Jeffrey Alan Gohman (3 out of 41 patents)

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