Ryusho Hirose
18Patents
11h-index
12Co-inventors
69Inventor score
Filing activity: Nov 8, 1974 → Feb 27, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4701035A | Reflection optical system | Physics | 59 | Expired |
| US4685777A | Reflection and refraction optical system | Physics | 58 | Expired |
| US4891663A | Projection exposure apparatus | Physics | 58 | Expired |
| US4043642A | Zoom lens system having electrical control of moving elements | Physics | 57 | Expired |
| US4811055A | Projection exposure apparatus | Physics | 44 | Expired |
| US3944324A | Image stabilized zoom lens system | Physics | 25 | Expired |
| US4688904A | Reflecting optical system | Physics | 19 | Expired |
| US4977426A | Projection exposure apparatus | Physics | 19 | Expired |
| US3990785A | Anamorphic zoom lens | Physics | 15 | Expired |
| US4015895A | Zoom lens system having enlarged range of variation in magnification | Physics | 15 | Expired |
| US4157211A | Zoom lens having an easily changeable range of variable focal distance | Physics | 14 | Expired |
| US4463384A | Television camera | Electricity | 8 | Expired |
| US4009942A | Zoom lens device | Physics | 8 | Expired |
| US4109279A | Television camera optics with a light guide for camera adjustment | Electricity | 5 | Expired |
| US4364642A | Zoom element focusable zoom lens | Physics | 4 | Expired |
| US6266192A | Projection exposure apparatus and device manufacturing method | Physics | 4 | Expired |
| US4259688A | TV camera | Physics | 4 | Expired |
| US3994571A | Zoom lens system having a focusing lens consisting of only one lens component | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.