% Expired Patents = 100.0

Forward Citations = 16

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7 inventors (with patents filed for the assignee):

Hidenori Sato (1 out of 22 patents)

Katsuhiko Hotta (1 out of 48 patents)

Hiroyuki Maruyama (1 out of 13 patents)

4. Norio Suzuki (1 out of 90 patents)

5. Akira Takamatsu (1 out of 14 patents)

6. Hiroyuki Ichizoe (1 out of 7 patents)

7. Takeshi Saikawa (1 out of 7 patents)

1 patent: Sort by Forward Citations

1. 7074691 - Method of manufacturing a semiconductor integrated circuit device that includes forming dummy patterns in an isolation region prior to filling with insulating material (2006-07-11),

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USPTO Data Jan 1 1976 - Oct 20 2026

1 Patents

#6,102 in Tokyo

#15,759 in Japan

Tokyo, Japan

Hitachi Ulsi Systems C O., Ltd.

Forward Citations = 16

7 inventors:

Hidenori Sato (1 out of 22 patents)

Katsuhiko Hotta (1 out of 48 patents)

Hiroyuki Maruyama (1 out of 13 patents)

4. Norio Suzuki (1 out of 90 patents)

5. Akira Takamatsu (1 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Ulsi Systems C O., Ltd.. Retrieved from https://idiyas.com/company/hitachi-ulsi-systems-c-o

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]