IDiyas

For the Inventor, By the Inventor

Tokyo, Japan

Ryozo Hasegawa

USPTO Granted Patents = 5

Average Co-Inventor Count = 3.1

ph-index = 5

Forward Citations = 212(Granted Patents)


Location History:

  • Nakano, Tokyo, JA (1977)
  • Iwakuni, JP (1979)
  • Yamaguchi, JP (1984)
  • Tokyo, JP (1992 - 1999)

Company Filing History:

goldMedal3 out of 1,586 
 
Teijin Limited
 patents
silverMedal2 out of 832,718 
Other
 patents

Years Active: 1977-1999

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5 patents (USPTO):Explore Patents
1. 5953439 - Apparatus for and method of extracting time series image information (1999-09-14),
2. 5123413 - Electric therapeutic apparatus (1992-06-23),
3. 4459210 - Porous membrane (1984-07-10),
4. 4176156 - Method for heat-sterilizing artificial kidneys (1979-11-27),
5. 4014167 - Electronic metronome (1977-03-29),
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