Hiroshi Akai
10Patents
4h-index
28Co-inventors
60Inventor score
Filing activity: Jul 16, 1985 → Aug 31, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5112407A | Process to prepare maltose powder | Chemistry; Metallurgy | 19 | Expired |
| US6106987A | Magnetic particles and magnetic carrier for electrophotographic developer | Physics | 9 | Expired |
| US4646865A | Shaft-driven motor vehicle | Performing Operations; Transporting | 7 | Expired |
| US6087057A | Magnetic particles and magnetic carrier for electrophotographic developer | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7144626B2 | Magnetic iron oxide particles and magnetic toner using the same | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7527409B2 | Display unit | Physics | 4 | Active |
| US8547502B2 | Light source module | Electricity | 1 | Active |
| US8546475B2 | Infrared reflecting black pigment, and paint and resin composition using the infrared reflecting black pigment | Chemistry; Metallurgy | 1 | Active |
| US10355364B2 | Waveguide slot antenna and method for producing same | Electricity | 0 | Active |
| US11007572B2 | Sliding member and method for producing same | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.