Atsushi Kumakura
15Patents
9h-index
12Co-inventors
65Inventor score
Filing activity: May 29, 1990 → Jun 1, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5318482A | Chain guide having improved arm-shoe attachment feature | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US5045032A | Chain guide having shoe made of plastics | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US6428435B1 | Tensioner lever for chain drive | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5961411A | Traveling guide shoe for a roller chain | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5088966A | Tensioner having pad made of plastics | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6062998A | Shoe for guiding the running of a transmission chain | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5366418A | Chain guide device in engine | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US6645102B2 | Pivotally movable plastic guide for power transmission device | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6916264B2 | Tensioner having protrusion-preventing mechanism for a plunger | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5702318A | Chain tensioning device | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6095938A | Plate base of guide for chain drive | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7226376B2 | Hydraulic tensioner | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7137916B2 | Movable guide for transmission device | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6585614B1 | Guide for chain drive | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7140604B2 | Parts retaining panel and method of mounting and securing parts | Mechanical Engineering; Lighting; Heating | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.