Ken Ishihara
3Patents
0Active
3Granted
28Portfolio score
Filing activity: Sep 6, 1991 → Jan 13, 1993
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5241473A | Ultrasonic diagnostic apparatus for displaying motion of moving portion by superposing a plurality of differential images | Physics | 45 | Expired |
| US5224481A | Image displaying method and device for realizing same in an ultrasonic diagnostic apparatus | Physics | 32 | Expired |
| US5325859A | Ultrasonic diagnosis apparatus | Physics | 28 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.