EPO Patents = 2

Forward Citations = 68

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4 inventors (with patents filed for the assignee):

Hidenori Miwa (3 out of 3 patents)

Takayuki Noguchi (2 out of 7 patents)

Mitsuru Yano (1 out of 1 patent)

4. Tatsuya Kudama (1 out of 1 patent)

5. Toshiyuki Murofushi (1 patent)

6 patents: Sort by Forward Citations

1. 12589912 - Product-containing outer bag, bag feeding device, and supply method (2026-03-31),

2. 12459705 - Outer bag with product therein, production method therefor, and bag body supply method (2025-11-04),

3. D887856 - Wrapping bag (2020-06-23),

4. D887855 - Wrapping bag (2020-06-23),

5. D841482 - Wrapping bag (2019-02-26),

6. 4555282 - Method of and means for bonding synthetic resin profiled fasteners to (1985-11-26),

Company Overview

Seisan Nippon Sha, Ltd. is a leading construction company based in Japan, specializing in a wide range of services including civil engineering, building construction, and real estate development. With over 50 years of experience, Seisan Nippon Sha is known for its commitment to quality, innovation, and customer satisfaction. The company prides itself on its ability to deliver projects on time and within budget, while adhering to the highest standards of safety and sustainability.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#2,469 in Tokyo

#5,989 in Japan

Tokyo, Japan

Seisan Nippon Sha, Ltd.

Forward Citations = 68

4 inventors:

Hidenori Miwa (3 out of 3 patents)

Takayuki Noguchi (2 out of 7 patents)

Mitsuru Yano (1 out of 1 patent)

4. Tatsuya Kudama (1 out of 1 patent)

5. Toshiyuki Murofushi (1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Seisan Nippon Sha, Ltd.. Retrieved from https://idiyas.com/company/seisan-nippon-sha

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]

2 patents (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]