% Expired Patents = 40.0

Forward Citations = 16

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13 inventors (with patents filed for the assignee):

Atsushi Sekine (1 out of 18 patents)

Yoshitomo Nagahashi (1 out of 13 patents)

Toru Imai (1 out of 6 patents)

4. Kenji Nishi (1 out of 129 patents)

5. Hiroki Nakamura (1 out of 39 patents)

6. Yoshihiro Watanabe (1 out of 71 patents)

7. Toshihiko Tsuji (1 out of 17 patents)

8. Manabu Fujii (1 out of 1 patent)

9. Hironori Murakami (1 out of 1 patent)

10. Hidekazu Kikuchi (1 out of 3 patents)

11. Katsunobu Ogura (1 out of 1 patent)

12. Hidenori Aizawa (1 out of 1 patent)

13. Kouji Satou (1 out of 2 patents)

5 patents: Sort by Forward Citations

1. 7332709 - Photoelectric encoder (2008-02-19),

2. 7106414 - Exposure system and method for manufacturing device (2006-09-12),

3. 6885437 - Mask exchanging method and exposure apparatus (2005-04-26),

4. 6050689 - Projection type display apparatus (2000-04-18),

5. 5732305 - Camera having centralized electrical connection area (1998-03-24),

Company Overview

Sendai Nikon Corporation is a subsidiary of Nikon Corporation, specializing in the manufacturing of optical products. Established in 1971, the company is based in Sendai, Japan and has a strong reputation for producing high-quality camera components and lenses. With advanced technology and precision engineering, Sendai Nikon Corporation continues to be a leading provider in the optical industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#1 in Notori-shi

#6,652 in Japan

Notori-shi, Japan

Sendai Nikon Corporation

Forward Citations = 16

13 inventors:

Atsushi Sekine (1 out of 18 patents)

Yoshitomo Nagahashi (1 out of 13 patents)

Toru Imai (1 out of 6 patents)

4. Kenji Nishi (1 out of 129 patents)

5. Hiroki Nakamura (1 out of 39 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sendai Nikon Corporation. Retrieved from https://idiyas.com/company/sendai-nikon

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]