Kenji Tamada
23Patents
7h-index
28Co-inventors
69Inventor score
Filing activity: Mar 8, 1982 → Nov 3, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6843605B2 | Roller thrust bearing | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5150974A | Grease-sealed bearing with oxide layers | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| USD305775S | Copying machine | General | 12 | Expired |
| USD273117S | Typewriter for European languages | General | 11 | Expired |
| US9541137B2 | Cooling structure for bearing device | Mechanical Engineering; Lighting; Heating | 10 | Active |
| USD284771S | Menu printer | General | 9 | Expired |
| USD286057S | Ribbon cassette for typewriter | General | 8 | Expired |
| USD297714S | Score collector for base-ball game | General | 7 | Expired |
| USD299249S | Typewriter | General | 6 | Expired |
| USD306249S | Combined paper folder and envelope opener or similar article | General | 6 | Expired |
| USD299248S | Typewriter | General | 5 | Expired |
| US7273319B2 | Roller thrust bearing | Emerging Cross-Sectional Technologies | 5 | Expired |
| USD300434S | Typewriter | General | 5 | Expired |
| USD291323S | Typewriter | General | 4 | Expired |
| US7707723B2 | Method of producing a roller thrust bearing having a plurality of rows of rollers | Emerging Cross-Sectional Technologies | 4 | Active |
| US7942586B2 | Thrust needle bearing | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| USD291208S | Print wheel cartridge for typewriter | General | 2 | Expired |
| US10280980B2 | Cooling structure for bearing device | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US5623847A | Method of and apparatus for deep drawing | Performing Operations; Transporting | 1 | Expired |
| US8188016B2 | Lubricant composition and bearing using same | Chemistry; Metallurgy | 1 | Active |
| USD313239S | Typewriter | General | 0 | Expired |
| USD290616S | Typewriter | General | 0 | Expired |
| US9217471B2 | Lubricant composition and bearing using same | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.