Yasuyuki Takahashi
56Patents
14h-index
67Co-inventors
87Inventor score
Filing activity: Jan 29, 1975 → Aug 31, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5759583A | Sustained release poly (lactic/glycolic) matrices | Human Necessities | 84 | Expired |
| US6606869B2 | Refrigerator | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US4590086A | Process for the production of a water-in-oil-in-water emulsion for foods | Human Necessities | 25 | Expired |
| US4031964A | Automatic control system controlling a ripper used on a construction equipment | Human Necessities | 24 | Expired |
| US4931210A | Process for producing a W/O/W type multiple emulsion for medicines, cosmetics, etc. | Emerging Cross-Sectional Technologies | 22 | Expired |
| US9524160B2 | In-vehicle program update apparatus | Emerging Cross-Sectional Technologies | 22 | Active |
| US8446171B2 | Signal processing unit | Electricity | 17 | Active |
| US4714566A | Process for producing W/O/W type multiple emusion | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4988456A | Process for producing W/O/W type multiple emulsion for medicines | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5638207A | Flare-prevention optical system, flare-prevention method, and flying height tester | Physics | 16 | Expired |
| US4626443A | Process for preparing dressings comprising W/O/W type multiple emulsions | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6658884B2 | Refrigerator | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US8507907B2 | Semiconductor memory device | Emerging Cross-Sectional Technologies | 15 | Active |
| US9224251B2 | Gateway device | Electricity | 15 | Active |
| US4632840A | Process for preparation of dressings comprising W/O/W type multiple emulsions | Human Necessities | 13 | Expired |
| US4626444A | Process for preparation of dressings comprising W/O/W type multiple emulsions | Human Necessities | 13 | Expired |
| US8358202B2 | Semiconductor device | Electricity | 12 | Active |
| US4985173A | Process for producing a W/O/W type multiple emulsion for medicines, cosmetics, etc. | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4971721A | Process for producing a W/O/W type multiple emulsion for medicines, cosmetics, etc. | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6355259B1 | Cosmetic composition for skin comprising urea | Human Necessities | 9 | Expired |
| US9424923B2 | Semiconductor storage device | Electricity | 8 | Active |
| US4062539A | Automatic control systems for rippers for use in civil works | Fixed Constructions | 6 | Expired |
| US9641329B2 | In-vehicle system and communication method | Electricity | 4 | Active |
| US4360594A | Process for producing L-tryptophan or derivatives thereof using microorganisms | Emerging Cross-Sectional Technologies | 4 | Expired |
| US9038132B2 | Bus monitoring security device and bus monitoring security system | Electricity | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.