logo

For the Inventor, By the Inventor

Tokyo, Japan

Takao Kageyama

This inventor holds 9 USPTO granted patents. Top assignees: Nippon Electric Co., Ltd., Nec Corporation. Active years: 1976-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takao Kageyama. Retrieved from https://idiyas.com/inventor/takao-kageyama

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 1.9

ph-index = 3

Forward Citations = 35(Granted Patents)


Location History:

  • Tokyo, JA (1976 - 1977)
  • Tokyo, JP (1979 - 1987)

Company Filing History:

goldMedal8 out of 1,038 
 
Nippon Electric Co., Ltd.
 patents
silverMedal1 out of 36,718 
 
Nec Corporation
 patents

Years Active: 1976-1987

Loading Chart...
9 patents (USPTO):Explore Patents
1. 4682076 - Microwave tube with improved output signal extracting structure (1987-07-21),
2. 4414486 - Coupled cavity type traveling wave tube (1983-11-08),
3. 4413207 - Multicavity klystron (1983-11-01),
4. 4258286 - Coupled cavity type traveling wave tube (1981-03-24),
5. 4168451 - Multi-cavity klystron amplifiers (1979-09-18),
6. 4147956 - Wide-band coupled-cavity type traveling-wave tube (1979-04-03),
7. 4019089 - Wideband multi-cavity velocity modulation tube (1977-04-19),
8. 3974417 - Four-cavity velocity modulation tube (1976-08-10),
9. 3942066 - Velocity modulation tube including a high resonance-frequency floating (1976-03-02),
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]
Loading…