Forward Citations = 32

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6 inventors (with patents filed for the assignee):

Fumio Shima (3 out of 3 patents)

Hidetoshi Honda (2 out of 2 patents)

Takahiro Shima (1 out of 2 patents)

4. Yoshinori Nakagawa (1 out of 2 patents)

5. Tsutomu Yoneda (1 out of 1 patent)

6. Shoji Matsuda (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 9113986 - Denture and artificial tooth used in the denture (2015-08-25),

2. 6210160 - Cover for working cast and articulator (2001-04-03),

3. 5938442 - Coupled artificial tooth assembly (1999-08-17),

4. 5904481 - Samples of artificial teeth and gums of display unit for dental surgeons (1999-05-18),

5. D357122 - Toothbrush (1995-04-11),

6. D325302 - Bristle end portion of a toothbrush (1992-04-14),

7. 4526570 - Dental hygienic device (1985-07-02),

Company Overview

Shiken Corporation is a leading provider of innovative solutions in the field of technology. With a focus on research and development, Shiken has developed cutting-edge products that have revolutionized industries worldwide. Our dedicated team of experts is committed to delivering high-quality services and products to meet the needs of our clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

7 Patents

#16 in Tokushima

#5,459 in Japan

Tokushima, Japan

Shiken Corporation

Forward Citations = 32

6 inventors:

Fumio Shima (3 out of 3 patents)

Hidetoshi Honda (2 out of 2 patents)

Takahiro Shima (1 out of 2 patents)

4. Yoshinori Nakagawa (1 out of 2 patents)

5. Tsutomu Yoneda (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Shiken Corporation. Retrieved from https://idiyas.com/company/shiken

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]