% Expired Patents = 66.7

Forward Citations = 7

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6 inventors (with patents filed for the assignee):

Masahiro Takeuchi (1 out of 20 patents)

Sukehiro Ito (1 out of 33 patents)

Junichi Katane (1 out of 25 patents)

4. Shinji Kurita (1 out of 1 patent)

5. Norio Kawamura (1 out of 1 patent)

6. Tsutomu Okayama (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 7812614 - Electron capture detector and nonradiative electron capture detector (2010-10-12),

2. 7557346 - Scanning electron microscope (2009-07-07),

3. 7521998 - Operational amplifier and scanning electron microscope using the same (2009-04-21),

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USPTO Data Jan 1 1976 - Oct 6 2026

3 Patents

#3 in Hitachinaka

#8,922 in Japan

Hitachinaka, Japan

Hitachi High-Tech Science Systems Corporation

Forward Citations = 7

6 inventors:

Masahiro Takeuchi (1 out of 20 patents)

Sukehiro Ito (1 out of 33 patents)

Junichi Katane (1 out of 25 patents)

4. Shinji Kurita (1 out of 1 patent)

5. Norio Kawamura (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi High-Tech Science Systems Corporation. Retrieved from https://idiyas.com/company/hitachi-high-tech-science-systems

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]