Akira Okada
158Patents
22h-index
235Co-inventors
93Inventor score
Filing activity: Jun 8, 1973 → Nov 6, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6316838A | Semiconductor device | Electricity | 475 | Expired |
| US6436441B1 | Hydrogel-forming sustained-release preparation | Human Necessities | 168 | Expired |
| US5830493A | Bone-forming graft | Human Necessities | 140 | Expired |
| US6699503B1 | Hydrogel-forming sustained-release preparation | Human Necessities | 136 | Expired |
| US5129803A | Concrete leveling machine | Fixed Constructions | 62 | Expired |
| US5795306A | Bodily state detection apparatus | Physics | 54 | Expired |
| US4523802A | Unitary mounting structure for semiconductor laser and optical fiber | Physics | 50 | Expired |
| US4098762A | Magnesium hydroxides having novel structure, process for production thereof, and resin compositions containing them | Chemistry; Metallurgy | 48 | Expired |
| US4351814A | Hydrotalcites having a hexagonal needle-like crystal structure and process for production thereof | Chemistry; Metallurgy | 46 | Expired |
| US6333564A | Surface mount type semiconductor device and method of producing the same having an interposing layer electrically connecting the semiconductor chip with protrusion electrodes | Electricity | 46 | Expired |
| US6259447A | Controlling an information processing apparatus | Physics | 36 | Expired |
| US5225783A | Dielectric constant detection apparatus for fuel | Physics | 35 | Expired |
| US5573006A | Bodily state detection apparatus | Physics | 34 | Expired |
| US6305949A | Press-fit pin, connector and printed circuit board-connected structure | Electricity | 34 | Expired |
| US4145404A | Magnesium hydroxides having novel structure, process for production thereof, and resin compositions containing them | Chemistry; Metallurgy | 33 | Expired |
| US6668276B1 | HTML file acquisition method, information terminal support device, and storage medium for storing a software product for acquiring HTML files | Physics | 31 | Expired |
| US4505887A | Fibrous magnesium oxide and process for production thereof | Chemistry; Metallurgy | 30 | Expired |
| US4218321A | Device for removal of excess water from blood | Performing Operations; Transporting | 28 | Expired |
| US7298974B2 | Optical communication network system | Electricity | 25 | Expired |
| US5598145A | Driver photographing apparatus | Physics | 25 | Expired |
| US7015579B2 | Semiconductor device for fingerprint recognition | Electricity | 24 | Expired |
| US6077451A | Method and apparatus for etching of silicon materials | Electricity | 22 | Expired |
| US4127647A | Process for preparation of stable amorphous macrolide antibiotic solids | Human Necessities | 22 | Expired |
| US5211999A | Laminated composite composed of fiber-reinforced ceramics and ceramics and method of producing same | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5924656A | Thermal insulating supporting device for piping | Mechanical Engineering; Lighting; Heating | 22 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.