Chiaki Tanuma
40Patents
11h-index
54Co-inventors
78Inventor score
Filing activity: Jun 2, 1981 → Feb 27, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5008582A | Electronic device having a cooling element | Emerging Cross-Sectional Technologies | 89 | Expired |
| US4634884A | Swing-driven solid-state image sensor | Electricity | 69 | Expired |
| US4857482A | Method of forming bump electrode and electronic circuit device | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5912679A | Ink-jet printer using RF tone burst drive signal | Performing Operations; Transporting | 31 | Expired |
| US4689514A | Displacement generating device | Physics | 25 | Expired |
| US6959986B2 | Liquid ink and recording apparatus | Chemistry; Metallurgy | 24 | Expired |
| US6045208A | Ink-jet recording device having an ultrasonic generating element array | Performing Operations; Transporting | 22 | Expired |
| US4608506A | Temperature compensated drive for a piezoelectric displacement generator | Electricity | 22 | Expired |
| US4510412A | Piezoelectric displacing device | Electricity | 15 | Expired |
| US4689516A | Position adjustment device with a piezoelectric element as a lock mechanism | Performing Operations; Transporting | 13 | Expired |
| US4554586A | Solid state image sensing device | Electricity | 12 | Expired |
| US4449919A | Gas combustion apparatus capable of detecting environmental oxygen deficiency | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5136389A | Image sensor driving method with high-speed voltage response | Electricity | 9 | Expired |
| US7500745B2 | Liquid ink and recording apparatus | Chemistry; Metallurgy | 9 | Active |
| US6036301A | Ink jet recording apparatus | Performing Operations; Transporting | 8 | Expired |
| US6123412A | Supersonic wave, ink jet recording apparatus including ink circulation means | Performing Operations; Transporting | 8 | Expired |
| US5412456A | Developing apparatus | Physics | 6 | Expired |
| US7125112B2 | Liquid ink and recording apparatus | Chemistry; Metallurgy | 5 | Expired |
| US7108367B2 | Liquid ink and recording apparatus | Chemistry; Metallurgy | 5 | Expired |
| US6746103B2 | Recording head and recording apparatus using the same | Performing Operations; Transporting | 5 | Expired |
| US5475477A | Developing apparatus | Physics | 4 | Expired |
| US8801147B2 | Inkjet head and inkjet recording apparatus | Performing Operations; Transporting | 4 | Active |
| US8876262B2 | Inkjet head and inkjet recording apparatus | Performing Operations; Transporting | 3 | Active |
| US6116721A | Ink jet recording device | Performing Operations; Transporting | 3 | Expired |
| US7387380B2 | Liquid ink and recording apparatus | Chemistry; Metallurgy | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.