Yuji Yamasaki
68Patents
9h-index
95Co-inventors
81Inventor score
Filing activity: Nov 12, 1992 → Dec 22, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6741118B2 | Semiconductor integrated circuit device and method of manufacturing the same | Electricity | 38 | Expired |
| US6837093B2 | Methods for making an easy-opening can end | Performing Operations; Transporting | 21 | Expired |
| US6175529A | Semiconductor integrated circuit device and method for manufacturing the same | Physics | 15 | Expired |
| US5443873A | Silicone rubber roller for electrophotography and method of producing the same | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6797411B2 | Galvanized steel sheet, method for manufacturing the same, and method for manufacturing press-formed product | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6493282B2 | Semiconductor integrated circuit | Physics | 10 | Expired |
| US5755129A | Press-forming method of a sheet and apparatus therefor | Performing Operations; Transporting | 10 | Expired |
| US5863626A | Electric conductive roller | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7035128B2 | Semiconductor memory device and semiconductor integrated circuit device | Electricity | 10 | Expired |
| US8419202B2 | Display device and backlight device | Physics | 8 | Active |
| US6570802B2 | Semiconductor memory device | Physics | 8 | Expired |
| US6628162B2 | Semiconductor integrated circuit | Physics | 8 | Expired |
| US7252722B2 | Steel sheet | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8844581B2 | Closed structure parts, method and press forming apparatus for manufacturing the same | Emerging Cross-Sectional Technologies | 7 | Active |
| US6743306B2 | Steel sheet and method for manufacturing the same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6507529B2 | Semiconductor device | Physics | 6 | Expired |
| US6181633A | Semiconductor device | Physics | 6 | Expired |
| US6435368B1 | Easy opening can end and method for fabricating the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US9333549B2 | Press-forming mold designing method and press-forming mold | Physics | 4 | Active |
| US8195816B2 | Security management device, communication system, and access control method | Electricity | 4 | Active |
| US9162272B2 | Closed structure parts, method and press forming apparatus for manufacturing the same | Performing Operations; Transporting | 4 | Active |
| US9327327B2 | Method of manufacturing pipe with different diameter along a longitudinal direction and die for forming | Performing Operations; Transporting | 3 | Active |
| US11590591B2 | Press die designing method using an index value obtained from two stress gradients in sheet thickness direction and gradient of surface stress distribution in direction | Physics | 3 | Active |
| US6621753B2 | Semiconductor device | Physics | 3 | Expired |
| US9009970B2 | Curvilineal closed structure parts and method for manufacturing the same | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.