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For the Inventor, By the Inventor

Inazawa, Japan

Tooru Tanahashi

This inventor holds 10 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1979-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tooru Tanahashi. Retrieved from https://idiyas.com/inventor/tooru-tanahashi

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 7

Forward Citations = 112(Granted Patents)


Location History:

  • Gifu, JP (1986)
  • Inazawa, JP (1979 - 1989)

Company Filing History:

goldMedal10 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1979-1989

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10 patents (USPTO):Explore Patents
1. 4851982 - Apparatus for controlling an A.C. powered elevator (1989-07-25),
2. 4816985 - Apparatus for controlling an alternating current power supply (1989-03-28),
3. 4745991 - Speed control apparatus for A.C. elevator (1988-05-24),
4. 4721188 - Control apparatus for A.C. elevator (1988-01-26),
5. 4671389 - Speed control apparatus for an elevator (1987-06-09),
6. 4629035 - Speed control apparatus for elevator (1986-12-16),
7. 4625834 - Speed control apparatus for elevator (1986-12-02),
8. 4624343 - Speed control apparatus for elevator (1986-11-25),
9. 4576253 - Velocity control apparatus for an elevator (1986-03-18),
10. 4165801 - Static Leonard system (1979-08-28),
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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