IDiyas

For the Inventor, By the Inventor

Musashino, Japan

Tatsuo Izawa

USPTO Granted Patents = 5

Average Co-Inventor Count = 2.7

ph-index = 5

Forward Citations = 195(Granted Patents)


Location History:

  • Musashino, JA (1976)
  • Mito, JA (1977)
  • Musashino, JP (1980 - 1991)

Company Filing History:

goldMedal4 out of 522 
 
Nippon Telegraph and Telephone Public Corporation
 patents
silverMedal1 out of 10,239 
 
Sumitomo Electric Industries, Limited
 patents
bronzeMedal1 out of 5,289 
 
Nippon Telegraph and Telephone Corporation
 patents
where one patent can have more than one assignee

Years Active: 1976-1991

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5 patents (USPTO):Explore Patents
1. 5062680 - Plate plastics optical waveguide (1991-11-05),
2. 4425146 - Method of making glass waveguide for optical circuit (1984-01-10),
3. 4224046 - Method for manufacturing an optical fiber preform (1980-09-23),
4. 4062665 - Continuous optical fiber preform fabrication method (1977-12-13),
5. 3957474 - Method for manufacturing an optical fibre (1976-05-18),
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