% Expired Patents = 50.0

EPO Patents = 1

Forward Citations = 13

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9 inventors (with patents filed for the assignee):

Akinori Saito (4 out of 8 patents)

Noriyuki Iiyama (2 out of 2 patents)

Nao Kanamori (2 out of 2 patents)

4. Minoru Onagi (1 out of 1 patent)

5. Hayato Suzuki (1 out of 1 patent)

6. Kenji Yamaguchi (1 out of 52 patents)

7. Yuya Kita (1 out of 1 patent)

8. Takahiro Yamamoto (1 out of 1 patent)

9. Tohru Matsumoto (1 out of 1 patent)

10. Takahiro Yamamoto (144 patents)

6 patents: Sort by Forward Citations

1. 11801712 - Caster swivel restriction structure (2023-10-31),

2. 11485397 - Trolley coupling structure (2022-11-01),

3. 10232667 - Mounting structure for caster (2019-03-19),

4. 10046599 - Electrical brake mechanism for caster (2018-08-14),

5. 9908367 - Double-lock caster (2018-03-06),

6. 8827305 - Hand truck (2014-09-09),

Company Overview

Nansin Co., Ltd. is a leading manufacturer of premium quality industrial caster wheels and material handling equipment based in Japan. With over 50 years of experience, Nansin is known for its innovative products that are designed to provide reliable and efficient solutions for various industries. The company is committed to delivering exceptional customer service and high-quality products that meet the highest standards of performance and durability.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#2,469 in Tokyo

#5,990 in Japan

Tokyo, Japan

Nansin Co., Ltd.

Forward Citations = 13

9 inventors:

Akinori Saito (4 out of 8 patents)

Noriyuki Iiyama (2 out of 2 patents)

Nao Kanamori (2 out of 2 patents)

4. Minoru Onagi (1 out of 1 patent)

5. Hayato Suzuki (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nansin Co., Ltd.. Retrieved from https://idiyas.com/company/nansin-company

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]

1 patent (EPO):

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]