Hirohiko Yamamoto
29Patents
10h-index
37Co-inventors
75Inventor score
Filing activity: Jan 3, 1985 → Jun 19, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4926182A | Microwave data transmission apparatus | Physics | 277 | Expired |
| US6693315B2 | Semiconductor device with an active region and plural dummy regions | Electricity | 55 | Expired |
| US5346300A | Back fire helical antenna | Electricity | 46 | Expired |
| US6289061A | Wideband frequency tracking system and method | Electricity | 15 | Expired |
| US6559027B2 | Semiconductor device and process for producing the sme | Electricity | 15 | Expired |
| US6242323A | Semiconductor device and process for producing the same | Electricity | 15 | Expired |
| US6770528B2 | Method of forming a data-storing capacitive element made in an insulating film on a semiconductor substrate | Electricity | 14 | Expired |
| US6057241A | Method of manufacturing a semiconductor integrated circuit device | Electricity | 13 | Expired |
| US5021790A | Microwave date transmission apparatus | Physics | 13 | Expired |
| US4712111A | Antenna system | Electricity | 10 | Expired |
| US7687914B2 | Semiconductor device and a method of manufacturing the same and designing the same | Electricity | 9 | Active |
| US6881646B2 | Semiconductor device and process for producing the same | Electricity | 7 | Expired |
| US6524927B1 | Semiconductor device and method of fabricating the same | Electricity | 7 | Expired |
| US6343094B1 | Spread spectrum signal receiving method and apparatus for CDMA cellular communication | Electricity | 7 | Expired |
| US4951111A | Integrated circuit device | Electricity | 7 | Expired |
| US6717202B2 | HSG semiconductor capacitor with migration inhibition layer | Electricity | 5 | Expired |
| US8119495B2 | Method of manufacturing a semiconductor device having an active region and dummy patterns | Electricity | 3 | Active |
| US7411302B2 | Semiconductor device and a method of manufacturing the same and designing the same | Electricity | 3 | Active |
| US8334481B2 | Mounting table structure, and processing apparatus | Chemistry; Metallurgy | 2 | Active |
| US8604505B2 | Semiconductor device and a method of manufacturing the same and designing the same | Electricity | 1 | Active |
| US7071560B2 | Semiconductor device and a method of manufacturing the same and designing the same | Electricity | 1 | Expired |
| US7402473B2 | Semiconductor device and process for producing the same | Electricity | 1 | Expired |
| US6444405B1 | Method of forming conductive layers in the trenches or through holes made in an insulating film on a semiconductors substrate | Electricity | 1 | Expired |
| US7589423B2 | Semiconductor device and a method of manufacturing the same and designing the same | Electricity | 0 | Active |
| US8426969B2 | Semiconductor device having active region and dummy wirings | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.