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For the Inventor, By the Inventor

Yamanashi, Japan

Toshio Higashi

This inventor holds 6 USPTO granted patents. Top assignees: Fujitsu Corporation, Eudyna Devices Inc., Fujitsu Quantum Devices Limited. Active years: 1994-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Higashi. Retrieved from https://idiyas.com/inventor/toshio-higashi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 6

% Patents Active = 83.3

Average Co-Inventor Count = 2.3

ph-index = 4

Forward Citations = 48(Granted Patents)


Location History:

  • Kawasaki, JP (1994 - 1999)
  • Kanagawa, JP (1999)
  • Yamanashi, JP (2005 - 2011)

Company Filing History:

goldMedal4 out of 39,378 
 
Fujitsu Corporation
 patents
silverMedal2 out of 86 
 
Eudyna Devices Inc.
 patents
bronzeMedal1 out of 109 
 
Fujitsu Quantum Devices Limited
 patents
where one patent can have more than one assignee

Years Active: 1994-2011

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6 patents (USPTO):Explore Patents
1. 7978737 - Laser device, control device of laser device, method of controlling laser device, method of tuning wavelength of laser device and control data of laser device (2011-07-12),
2. 7701984 - Laser module and method of controlling wavelength of external cavity laser (2010-04-20),
3. 6876683 - Optical semiconductor device (2005-04-05),
4. 5952673 - Optical semiconductor device including a multiple quantum well structure (1999-09-14),
5. 5937120 - Optical device (1999-08-10),
6. 5347533 - Optical semiconductor device, method of producing the optical (1994-09-13),
Profile summary based on public USPTO records.
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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