YAMAHA CORPORATION
5,475Patents
2,342Active
5,475Granted
55Portfolio score
Filing activity: Jun 24, 1983 → Aug 27, 2024 · 931 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5923902A | System for synchronizing a plurality of nodes to concurrently generate output signals by adjusting relative timelags based on a maximum estimated timelag | Electricity | 1,638 | Expired |
| USD753629S1 | Speaker | General | 451 | Active |
| US5229756A | Image control apparatus | Human Necessities | 423 | Expired |
| US4928972A | Iron club head for golf | Human Necessities | 385 | Expired |
| US5918303A | Performance setting data selecting apparatus | Physics | 360 | Expired |
| US5176384A | Iron type golf club head | Human Necessities | 346 | Expired |
| US5669827A | Metallic wood club head for golf | Human Necessities | 315 | Expired |
| US4867458A | Golf club head | Human Necessities | 302 | Expired |
| US5536902A | Method of and apparatus for analyzing and synthesizing a sound by extracting and controlling a sound parameter | Physics | 301 | Expired |
| US5346217A | Hollow metal alloy wood-type golf head | Human Necessities | 298 | Expired |
| US4824116A | Golf club head | Performing Operations; Transporting | 292 | Expired |
| US5239458A | Fader device having a fine adjustment of the signal level | Electricity | 274 | Expired |
| US5808224A | Portable downloader connectable to karaoke player through wireless communication channel | Physics | 271 | Expired |
| US5880386A | Musical information processing system with automatic data transfer | Physics | 269 | Expired |
| US5499921A | Karaoke apparatus with visual assistance in physical vocalism | Physics | 247 | Expired |
| US4795159A | Wood-type golf club head | Human Necessities | 238 | Expired |
| US7365260B2 | Apparatus and method for reproducing voice in synchronism with music piece | Physics | 234 | Expired |
| US5908356A | Wood golf club head | Human Necessities | 231 | Expired |
| US6379265B1 | Structure and method of fastening a weight body to a golf club head | Human Necessities | 231 | Expired |
| US6211451A | Music lesson system with local training terminal and remote supervisory station | Physics | 228 | Expired |
| US5386568A | Apparatus and method for linking software modules | Physics | 218 | Expired |
| US4884812A | Golf club head | Human Necessities | 215 | Expired |
| US4803023A | Method for producing a wood-type golf club head | Performing Operations; Transporting | 205 | Expired |
| US5391439A | Leadframe adapted to support semiconductor elements | Emerging Cross-Sectional Technologies | 191 | Expired |
| US7076052B2 | Telephone terminal | Electricity | 179 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.