Ryosuke Hayashi
38Patents
9h-index
89Co-inventors
78Inventor score
Filing activity: Feb 10, 1992 → Jan 12, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5341839A | Water flow control system | Emerging Cross-Sectional Technologies | 83 | Expired |
| US5362026A | Water flow control system | Emerging Cross-Sectional Technologies | 73 | Expired |
| US6754912B1 | Human body cleaner | Performing Operations; Transporting | 58 | Expired |
| US5199639A | Shower with a micromotor operated revolving shower head | Performing Operations; Transporting | 50 | Expired |
| US5502845A | Siphon-jet flush water supply system for toilet stool | Fixed Constructions | 44 | Expired |
| US6768519B2 | Reproducible matrix switch settings of a video signal processing apparatus | Electricity | 35 | Expired |
| US7293297B2 | Automatic toilet seat or toilet cover lifting and lowering device | Human Necessities | 25 | Expired |
| US8418277B2 | Flush toilet | Fixed Constructions | 19 | Active |
| US5983413A | High performance flush toilet | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6108826A | Adjustable trap for a toilet stool | Electricity | 8 | Expired |
| US7275626B2 | Damper device | Human Necessities | 8 | Expired |
| US10082765B2 | Process cartridge and image forming apparatus | Physics | 7 | Active |
| US6195470A | Special effect system, image processing method, and symmetrical image generating method | Electricity | 5 | Expired |
| US8985696B2 | Vehicle seat | Performing Operations; Transporting | 4 | Active |
| US7834916B2 | Video content editing support system and method | Electricity | 3 | Expired |
| US9531263B2 | Semiconductor device | Electricity | 3 | Active |
| USD733447S1 | Massage machine | General | 2 | Active |
| US8281424B2 | Flush toilet | Fixed Constructions | 2 | Active |
| US9136837B2 | Switching circuit and power supply device including switch circuit | Electricity | 1 | Active |
| US7386895B2 | Opening/closing device for toilet seat or toilet lid, and transmission unit for the device | Human Necessities | 1 | Expired |
| US11333999B2 | Toner cartridge including shutter rotatable between first position and second position | Physics | 0 | Active |
| US10545454B2 | Process cartridge and image forming apparatus | General | 0 | Revoked |
| US10705455B2 | Toner cartridge including shutter rotatable between first position and second position | Physics | 0 | Active |
| US8544123B2 | Flush toilet | Fixed Constructions | 0 | Active |
| US11434791B2 | Oil level gauge guide apparatus | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.