logo

For the Inventor, By the Inventor

Osaka, Japan

Sekisui Seikei, Ltd.

USPTO Granted Patents = 3

% Expired Patents = 33.3



Forward Citations = 1

Loading Chart...
Loading Chart...

7 inventors (with patents filed for the assignee):

goldMedal Atsuhito Tadokoro (1 out of 1 patent)

silverMedal Shinichi Tokudome (1 out of 1 patent)

bronzeMedal Tomoyuki Hishida (1 out of 1 patent)

4.  Seiichi Koike (1 out of 3 patents)

5.  Yukinori Fujimoto (1 out of 1 patent)

6.  Katsuo Matsuzaka (1 out of 8 patents)

7.  Yujiro Hirao (1 out of 1 patent)

8.  Koji Yamaguchi (128 patents)

9.  Michiaki Sasayama (5 patents)

10.  Koichi Adachi (0 patent)

11.  Yujiro Sekisui Chemical Co Ltd Hirao (0 patent)

12.  Katsuo Sekisui Chemical Co Ltd Matsuzaka (0 patent)


3 patents:

1. 9657163 - Shape retaining material and method for producing the same (2017-05-23),
2. 8419308 - Document fastener and file or folder (2013-04-16),
3. 8012568 - Laminated shape-retainable sheet, core for brim of headwear using the same, brim of headwear, and headwear (2011-09-06),
logo

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#952 in Osaka

#8,932 in Japan

Osaka, JP
Osaka, Japan

Sekisui Seikei, Ltd.

Forward Citations = 1

7 inventors:

goldMedal Atsuhito Tadokoro (1 out of 1 patent)

silverMedal Shinichi Tokudome (1 out of 1 patent)

bronzeMedal Tomoyuki Hishida (1 out of 1 patent)

4.  Seiichi Koike (1 out of 3 patents)

5.  Yukinori Fujimoto (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sekisui Seikei, Ltd.. Retrieved from https://idiyas.com/company/sekisui-seikei

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]
Loading…