Keisuke Ishii
25Patents
9h-index
47Co-inventors
75Inventor score
Filing activity: Dec 3, 1987 → Feb 14, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4866921A | Mowing apparatus | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5560187A | Strapping machine | Performing Operations; Transporting | 27 | Expired |
| US4881510A | Breather device of an engine | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4974562A | Oil pump device of an engine | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4911119A | Oil pump mounting system for internal combustion engines | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US7552011B2 | Map display apparatus and map display method | Physics | 13 | Active |
| US5615538A | Strapping machine | Performing Operations; Transporting | 13 | Expired |
| USD310373S | Engine | General | 10 | Expired |
| US5040259A | Fire hose washing apparatus | Human Necessities | 9 | Expired |
| US7933412B2 | In-vehicle communication system and method therefor, in-vehicle communication terminal, communication method therefor, program recording medium, and program | Electricity | 9 | Active |
| US4787924A | Air cleaner | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5513482A | Strapping machine | Performing Operations; Transporting | 9 | Expired |
| US7616392B2 | Lens barrel and imaging apparatus | Electricity | 8 | Active |
| US4890583A | Crankcase of an engine | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| USD810172S1 | Camera | General | 5 | Active |
| USD902284S1 | Camera | General | 4 | Active |
| US10273838B2 | Valve seat insert for internal combustion engine having excellent wear resistance | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10903093B2 | Heating device | Electricity | 1 | Active |
| US11318529B2 | Casting device | Performing Operations; Transporting | 0 | Active |
| US8065081B2 | Vehicle mounted user interface device and vehicle mounted navigation system | Physics | 0 | Expired |
| US10964482B2 | Multi-layer ceramic capacitor | Electricity | 0 | Active |
| US12176152B2 | Ceramic electronic device and manufacturing method of the same | Electricity | 0 | Active |
| US11424076B2 | Multi-layer ceramic capacitor | Electricity | 0 | Active |
| US12340948B2 | Multilayer ceramic capacitor | Electricity | 0 | Active |
| US11670457B2 | Ceramic electronic component and method of manufacturing the same | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.