Hiroshi Ohyama
10Patents
4h-index
29Co-inventors
60Inventor score
Filing activity: Jan 7, 1975 → Jan 24, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5518270A | Knee protector device for vehicle | Performing Operations; Transporting | 28 | Expired |
| US7379553B2 | Sound source search system | Electricity | 12 | Expired |
| US4122447A | Endfire-type phased array antenna | Electricity | 11 | Expired |
| US7243359B2 | Method and apparatus for dynamically absorbing vibration | Physics | 7 | Expired |
| US6489402B2 | Vibration insulator from partially crosslinked butyl rubber | Chemistry; Metallurgy | 4 | Expired |
| US3981016A | Antenna apparatus for detecting an optimum directivity | Electricity | 3 | Expired |
| US8396241B2 | Reflector structure, sound field adjusting method, columnar reflector structure, room, program, and various acoustic room designing system | Physics | 1 | Active |
| US8833514B2 | Open air layer-type vibration reduction structure | Fixed Constructions | 0 | Active |
| US9392388B2 | Noise identifying apparatus and noise identifying method using the same | Electricity | 0 | Active |
| US9189194B2 | Display device that separately controls first and second display windows for indicating connection statuses of plurality of instruments on display device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.