Hisao Kai
12Patents
6h-index
6Co-inventors
59Inventor score
Filing activity: Aug 9, 1978 → Nov 19, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5038547A | Method for producing an easily openable tightly sealed bag | Emerging Cross-Sectional Technologies | 50 | Expired |
| US5894929A | Vacuum packaging bag and vacuum packaging method | Performing Operations; Transporting | 50 | Expired |
| US4543279A | Plastic film product | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5141795A | Laminated film for forming an easily openable tightly sealed bag | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4919272A | Easily openable tightly sealed bag | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5080270A | Container for containing long and flexible plastic object equipped with cutter | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4977807A | Slit imparting device for forming through cuts in a plastic film | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4679718A | Cutter for dispensing container and dispensing container provided with said cutter | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4465215A | Cutting edge for dispensing container | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8026947B2 | Image sensor | Electricity | 1 | Active |
| US7961223B2 | Image sensor for surpressing movement of an image sensor due to change in urging direction of a spring | Electricity | 1 | Active |
| US4195464A | Vacuum suction typed holder for flexible, tube-shaped film materials | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.