Hiroshi Ooi
17Patents
8h-index
20Co-inventors
72Inventor score
Filing activity: Dec 23, 1977 → Aug 10, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD352729S | Combined monitor, video tape recorder and camera | General | 29 | Expired |
| USD347236S | Combined video tape recorder and camera | General | 25 | Expired |
| USD352728S | Combined monitor, video tape recorder and camera | General | 25 | Expired |
| USD347235S | Combined video tape recorder and camera | General | 19 | Expired |
| US4153454A | Steel materials having an excellent hydrogen induced cracking resistance | Chemistry; Metallurgy | 18 | Expired |
| USD341368S | Combined video tape recorder and television camera | General | 15 | Expired |
| USD316555S | Combined video camera and video tape recorder | General | 10 | Expired |
| USD325921S | Combined video tape recorder and camera | General | 8 | Expired |
| USD317457S | Camera with LCD television and video tape recorder | General | 7 | Expired |
| USD313608S | Combined camera and video tape recorder | General | 7 | Expired |
| USD316554S | Combined video camera and video tape recorder | General | 7 | Expired |
| US4430116A | Method and apparatus for heating or heating and reduction raw materials for a metallurgical furnace utilizing waste gases from the same furnace | Emerging Cross-Sectional Technologies | 6 | Expired |
| USD317456S | Television camera | General | 6 | Expired |
| USD316719S | Combined video camera and video tape recorder | General | 5 | Expired |
| USD310216S | Combined video tape recorder and LCD television | General | 2 | Expired |
| USD331592S | Combined video tape recorder and television camera | General | 1 | Expired |
| US11118277B2 | Method for producing metal porous body, and plating apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.