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For the Inventor, By the Inventor

Gifu, Japan

Ein Co. Ltd. Technical Center

Calculating rank
USPTO Granted Patents = 3

% Expired Patents = 33.3


Forward Citations = 47

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6 inventors (with patents filed for the assignee):

goldMedal Sadao Nishibori (3 out of 29 patents)

silverMedal Yuichiro Nakamura (2 out of 37 patents)

bronzeMedal Iwao Kouno (2 out of 2 patents)

4.  Takeyasu Kikuchi (1 out of 8 patents)

5.  Masami Yajima (1 out of 1 patent)

6.  Hitoshi Takahashi (1 out of 1 patent)


3 patents:

1. 7771375 - Cushion and acoustic system with the cushion (2010-08-10),
2. 7377762 - System for producing resin molded article with spring structure (2008-05-27),
3. 6872442 - METHOD FOR RECYCLING SYNTHETIC WOOD MATERIALS FROM SHEATHING BOARD FOR USE IN A CONCRETE FORM FORMED BY SYNTHETIC WOOD MATERIALS, AND SHEATHING BOARD FOR USE IN A CONCRETE FORM HAVING THE PREVIOUSLY MENTIONED RECYCLED SYNTHETIC WOOD MATERIALS AS RAW MATERIALS (2005-03-29),
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USPTO Data Jan 1 1976 - Oct 27 2026

3 Patents

#33 in Gifu, 501-32

#8,938 in Japan

Gifu, JP
Gifu, Japan

Ein Co. Ltd. Technical Center

Forward Citations = 47

6 inventors:

goldMedal Sadao Nishibori (3 out of 29 patents)

silverMedal Yuichiro Nakamura (2 out of 37 patents)

bronzeMedal Iwao Kouno (2 out of 2 patents)

4.  Takeyasu Kikuchi (1 out of 8 patents)

5.  Masami Yajima (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ein Co. Ltd. Technical Center. Retrieved from https://idiyas.com/company/ein-company-ltd-technical-center

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]
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