Hitoshi Ohara
19Patents
8h-index
25Co-inventors
68Inventor score
Filing activity: Jun 26, 1992 → Sep 4, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6325735A | Silent chain | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US6077181A | Plate for a silent chain having a protruding portion for reducing the noise generated when the plate engages a sprocket | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US6432011B1 | Silent chain | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US6260345A | Silent chain | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6416436B1 | Silent chain power transmitting device | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5941059A | Silent chain, and rocker pin and plate thereof | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6159122A | Silent chain | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5286236A | Ball-type speed reducer | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6277046A | Silent chain | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6272835A | Silent chain | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6045473A | Plate for a silent chain | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6564933B2 | Conveyor chain | Performing Operations; Transporting | 7 | Expired |
| US5902203A | Silent chain | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6494800B1 | Wear-resistant silent chain | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6589127B1 | Silent chain with rocker joint pins | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6383105B1 | Guide plate for a silent chain | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6572503B2 | Rocker joint silent chain | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US8012054B2 | Rocker joint pin type silent chain | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7789782B2 | Silent chain | Mechanical Engineering; Lighting; Heating | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.