% Expired Patents = 33.3

Trademarks = 1

Forward Citations = 167

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10 inventors (with patents filed for the assignee):

Haroon Ahmed (2 out of 9 patents)

Jeremy Allam (2 out of 6 patents)

Jeremy John Baumberg (1 out of 9 patents)

4. Toshihiko Sato (1 out of 21 patents)

5. Kazuo Nakazato (1 out of 21 patents)

6. Albert Herble (1 out of 2 patents)

7. Alex Driskill-Smith (1 out of 1 patent)

8. David Hasko (1 out of 1 patent)

9. Albert P Heberle (1 out of 1 patent)

10. David Arfon Williams (1 out of 20 patents)

6 patents: Sort by Forward Citations

1. 6895025 - Optical switching apparatus (2005-05-17),

2. 6771012 - Apparatus for producing a flux of charge carriers (2004-08-03),

3. 6574143 - Memory device using hot charge carrier converters (2003-06-03),

4. 6436784 - Method of forming semiconductor structure (2002-08-20),

5. 6172793 - Apparatus for coherently controlling an optical transition (2001-01-09),

6. 5997958 - Method of depositing nanometer scale particles (1999-12-07),

Company Overview

Hitachi Europe Limited is a subsidiary of Hitachi, Ltd. and operates across Europe with a wide range of business segments including information technology, power systems, social infrastructure, industrial systems, and more. The company is committed to contributing to society through its innovative technologies and solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#8 in Maidenhead

#2,680 in United Kingdom

Maidenhead, United Kingdom

Hitachi Europe Limited

Forward Citations = 167

10 inventors:

Haroon Ahmed (2 out of 9 patents)

Jeremy Allam (2 out of 6 patents)

Jeremy John Baumberg (1 out of 9 patents)

4. Toshihiko Sato (1 out of 21 patents)

5. Kazuo Nakazato (1 out of 21 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hitachi Europe Limited. Retrieved from https://idiyas.com/company/hitachi-europe

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]